author | Katia Saurfelt <katia.saurfelt@logilab.fr> |
Thu, 01 Mar 2012 15:00:58 +0100 | |
branch | stable |
changeset 8290 | d07dadd8f664 |
parent 7998 | 9ef285eb20f4 |
child 8682 | 20bd1cdf86ae |
permissions | -rw-r--r-- |
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[c-c create] unification of c-c create and its subcommands handling
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# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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# |
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# This file is part of CubicWeb. |
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# |
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# CubicWeb is free software: you can redistribute it and/or modify it under the |
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# terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 2.1 of the License, or (at your option) |
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# any later version. |
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# |
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replace logilab-common by CubicWeb in disclaimer
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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[view] use the new magic js object to generate javascript func call for auto reload user callbacks
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"""Some utilities for CubicWeb server/clients.""" |
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from __future__ import division, with_statement |
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__docformat__ = "restructuredtext en" |
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import sys |
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import decimal |
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import datetime |
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import random |
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[utils] add a ``js_href`` function to generated proper javascript href
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import re |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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from operator import itemgetter |
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from inspect import getargspec |
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from itertools import repeat |
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3.7 depends on python >= 2.5
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from uuid import uuid4 |
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[javascript] fix #736185: add_onload / jQuery.bind() vs. jQuery.one()
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from warnings import warn |
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from threading import Lock |
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from logging import getLogger |
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from logilab.mtconverter import xml_escape |
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from logilab.common.deprecation import deprecated |
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_MARKER = object() |
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# initialize random seed from current time |
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random.seed() |
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[utils] make_uid imrovment: using .hex already remove '-', make key argument optional, document it
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def make_uid(key=None): |
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"""Return a unique identifier string. |
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if specified, `key` is used to prefix the generated uid so it can be used |
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for instance as a DOM id or as sql table names. |
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See uuid.uuid4 documentation for the shape of the generated identifier, but |
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this is basicallly a 32 bits hexadecimal string. |
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""" |
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if key is None: |
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return uuid4().hex |
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return str(key) + uuid4().hex |
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def support_args(callable, *argnames): |
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"""return true if the callable support given argument names""" |
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if isinstance(callable, type): |
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callable = callable.__init__ |
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argspec = getargspec(callable) |
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if argspec[2]: |
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return True |
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for argname in argnames: |
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if argname not in argspec[0]: |
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return False |
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return True |
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class wrap_on_write(object): |
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""" Sometimes it is convenient to NOT write some container element |
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if it happens that there is nothing to be written within, |
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but this cannot be known beforehand. |
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Hence one can do this: |
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.. sourcecode:: python |
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with wrap_on_write(w, '<div class="foo">', '</div>') as wow: |
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component.render_stuff(wow) |
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""" |
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def __init__(self, w, tag, closetag=None): |
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self.written = False |
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self.tag = unicode(tag) |
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self.closetag = closetag |
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self.w = w |
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def __enter__(self): |
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return self |
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def __call__(self, data): |
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if self.written is False: |
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self.w(self.tag) |
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self.written = True |
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self.w(data) |
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def __exit__(self, exctype, value, traceback): |
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101 |
if self.written is True: |
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102 |
if self.closetag: |
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103 |
self.w(unicode(self.closetag)) |
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104 |
else: |
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105 |
self.w(self.tag.replace('<', '</', 1)) |
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106 |
|
0 | 107 |
|
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108 |
# use networkX instead ? |
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|
109 |
# http://networkx.lanl.gov/reference/algorithms.traversal.html#module-networkx.algorithms.traversal.astar |
6854 | 110 |
def transitive_closure_of(entity, rtype, _seen=None): |
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111 |
"""return transitive closure *for the subgraph starting from the given |
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112 |
entity* (eg 'parent' entities are not included in the results) |
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113 |
""" |
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114 |
if _seen is None: |
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115 |
_seen = set() |
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116 |
_seen.add(entity.eid) |
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|
117 |
yield entity |
6854 | 118 |
for child in getattr(entity, rtype): |
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119 |
if child.eid in _seen: |
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120 |
continue |
6854 | 121 |
for subchild in transitive_closure_of(child, rtype, _seen): |
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122 |
yield subchild |
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|
123 |
|
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124 |
|
0 | 125 |
class SizeConstrainedList(list): |
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126 |
"""simple list that makes sure the list does not get bigger than a given |
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127 |
size. |
0 | 128 |
|
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129 |
when the list is full and a new element is added, the first element of the |
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130 |
list is removed before appending the new one |
0 | 131 |
|
132 |
>>> l = SizeConstrainedList(2) |
|
133 |
>>> l.append(1) |
|
134 |
>>> l.append(2) |
|
135 |
>>> l |
|
136 |
[1, 2] |
|
137 |
>>> l.append(3) |
|
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|
138 |
>>> l |
0 | 139 |
[2, 3] |
140 |
""" |
|
141 |
def __init__(self, maxsize): |
|
142 |
self.maxsize = maxsize |
|
143 |
||
144 |
def append(self, element): |
|
145 |
if len(self) == self.maxsize: |
|
146 |
del self[0] |
|
147 |
super(SizeConstrainedList, self).append(element) |
|
148 |
||
149 |
def extend(self, sequence): |
|
150 |
super(SizeConstrainedList, self).extend(sequence) |
|
151 |
keepafter = len(self) - self.maxsize |
|
152 |
if keepafter > 0: |
|
153 |
del self[:keepafter] |
|
154 |
||
155 |
__iadd__ = extend |
|
156 |
||
157 |
||
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|
158 |
class RepeatList(object): |
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|
159 |
"""fake a list with the same element in each row""" |
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|
160 |
__slots__ = ('_size', '_item') |
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161 |
def __init__(self, size, item): |
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162 |
self._size = size |
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163 |
self._item = item |
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|
164 |
def __repr__(self): |
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165 |
return '<cubicweb.utils.RepeatList at %s item=%s size=%s>' % ( |
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|
166 |
id(self), self._item, self._size) |
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|
167 |
def __len__(self): |
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|
168 |
return self._size |
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169 |
def __nonzero__(self): |
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|
170 |
return self._size |
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|
171 |
def __iter__(self): |
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|
172 |
return repeat(self._item, self._size) |
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|
173 |
def __getitem__(self, index): |
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|
174 |
return self._item |
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|
175 |
def __delitem__(self, idc): |
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|
176 |
assert self._size > 0 |
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|
177 |
self._size -= 1 |
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|
178 |
def __getslice__(self, i, j): |
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|
179 |
# XXX could be more efficient, but do we bother? |
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|
180 |
return ([self._item] * self._size)[i:j] |
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|
181 |
def __add__(self, other): |
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|
182 |
if isinstance(other, RepeatList): |
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|
183 |
if other._item == self._item: |
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|
184 |
return RepeatList(self._size + other._size, self._item) |
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|
185 |
return ([self._item] * self._size) + other[:] |
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|
186 |
return ([self._item] * self._size) + other |
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|
187 |
def __radd__(self, other): |
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|
188 |
if isinstance(other, RepeatList): |
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|
189 |
if other._item == self._item: |
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|
190 |
return RepeatList(self._size + other._size, self._item) |
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|
191 |
return other[:] + ([self._item] * self._size) |
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|
192 |
return other[:] + ([self._item] * self._size) |
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|
193 |
def __eq__(self, other): |
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|
194 |
if isinstance(other, RepeatList): |
6492
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fix some pylint detected errors
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parents:
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changeset
|
195 |
return other._size == self._size and other._item == self._item |
5069
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|
196 |
return self[:] == other |
5077
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[rset] cubes such as iliane hi-jack rset description by poping some lines from it. Handle this on RepeatList
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|
197 |
def pop(self, i): |
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[rset] cubes such as iliane hi-jack rset description by poping some lines from it. Handle this on RepeatList
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|
198 |
self._size -= 1 |
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|
199 |
|
6684
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minor cleanups
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|
200 |
|
0 | 201 |
class UStringIO(list): |
202 |
"""a file wrapper which automatically encode unicode string to an encoding |
|
203 |
specifed in the constructor |
|
204 |
""" |
|
205 |
||
206 |
def __nonzero__(self): |
|
207 |
return True |
|
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|
208 |
|
0 | 209 |
def write(self, value): |
210 |
assert isinstance(value, unicode), u"unicode required not %s : %s"\ |
|
211 |
% (type(value).__name__, repr(value)) |
|
212 |
self.append(value) |
|
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|
213 |
|
0 | 214 |
def getvalue(self): |
215 |
return u''.join(self) |
|
216 |
||
217 |
def __repr__(self): |
|
218 |
return '<%s at %#x>' % (self.__class__.__name__, id(self)) |
|
219 |
||
220 |
||
221 |
class HTMLHead(UStringIO): |
|
222 |
"""wraps HTML header's stream |
|
223 |
||
224 |
Request objects use a HTMLHead instance to ease adding of |
|
225 |
javascripts and stylesheets |
|
226 |
""" |
|
7267
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[page data] don't call unload_page_data too many time (closes #1518398)
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|
227 |
js_unload_code = u'''if (typeof(pageDataUnloaded) == 'undefined') { |
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|
228 |
jQuery(window).unload(unloadPageData); |
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|
229 |
pageDataUnloaded = true; |
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|
230 |
}''' |
6406
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xml-escape <script> tags generated by HTMLHead
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|
231 |
# Making <script> tag content work properly with all possible |
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|
232 |
# content-types (xml/html) and all possible browsers is very |
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|
233 |
# tricky, see http://www.hixie.ch/advocacy/xhtml for an in-depth discussion |
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|
234 |
xhtml_safe_script_opening = u'<script type="text/javascript"><!--//--><![CDATA[//><!--\n' |
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|
235 |
xhtml_safe_script_closing = u'\n//--><!]]></script>' |
0 | 236 |
|
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[web] add option to make resources-concat optional (implements #1910615)
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|
237 |
def __init__(self, req): |
0 | 238 |
super(HTMLHead, self).__init__() |
239 |
self.jsvars = [] |
|
240 |
self.jsfiles = [] |
|
241 |
self.cssfiles = [] |
|
242 |
self.ie_cssfiles = [] |
|
243 |
self.post_inlined_scripts = [] |
|
244 |
self.pagedata_unload = False |
|
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|
245 |
self._cw = req |
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self.datadir_url = req.datadir_url |
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248 |
def add_raw(self, rawheader): |
|
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self.write(rawheader) |
|
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def define_var(self, var, value, override=True): |
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252 |
"""adds a javascript var declaration / assginment in the header |
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253 |
|
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254 |
:param var: the variable name |
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255 |
:param value: the variable value (as a raw python value, |
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256 |
it will be jsonized later) |
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257 |
:param override: if False, don't set the variable value if the variable |
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258 |
is already defined. Default is True. |
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259 |
""" |
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self.jsvars.append( (var, value, override) ) |
0 | 261 |
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262 |
def add_post_inline_script(self, content): |
|
263 |
self.post_inlined_scripts.append(content) |
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def add_onload(self, jscode, jsoncall=_MARKER): |
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if jsoncall is not _MARKER: |
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warn('[3.7] specifying jsoncall is not needed anymore', |
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268 |
DeprecationWarning, stacklevel=2) |
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self.add_post_inline_script(u"""$(cw).one('server-response', function(event) { |
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270 |
%s});""" % jscode) |
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271 |
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0 | 273 |
def add_js(self, jsfile): |
274 |
"""adds `jsfile` to the list of javascripts used in the webpage |
|
275 |
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276 |
This function checks if the file has already been added |
|
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:param jsfile: the script's URL |
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278 |
""" |
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if jsfile not in self.jsfiles: |
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self.jsfiles.append(jsfile) |
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def add_css(self, cssfile, media='all'): |
0 | 283 |
"""adds `cssfile` to the list of javascripts used in the webpage |
284 |
||
285 |
This function checks if the file has already been added |
|
286 |
:param cssfile: the stylesheet's URL |
|
287 |
""" |
|
288 |
if (cssfile, media) not in self.cssfiles: |
|
289 |
self.cssfiles.append( (cssfile, media) ) |
|
290 |
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def add_ie_css(self, cssfile, media='all', iespec=u'[if lt IE 8]'): |
0 | 292 |
"""registers some IE specific CSS""" |
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if (cssfile, media, iespec) not in self.ie_cssfiles: |
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self.ie_cssfiles.append( (cssfile, media, iespec) ) |
0 | 295 |
|
296 |
def add_unload_pagedata(self): |
|
297 |
"""registers onunload callback to clean page data on server""" |
|
298 |
if not self.pagedata_unload: |
|
299 |
self.post_inlined_scripts.append(self.js_unload_code) |
|
300 |
self.pagedata_unload = True |
|
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def concat_urls(self, urls): |
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"""concatenates urls into one url usable by Apache mod_concat |
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304 |
|
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This method returns the url without modifying it if there is only |
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306 |
one element in the list |
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307 |
:param urls: list of local urls/filenames to concatenate |
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308 |
""" |
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309 |
if len(urls) == 1: |
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310 |
return urls[0] |
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311 |
len_prefix = len(self.datadir_url) |
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312 |
concated = u','.join(url[len_prefix:] for url in urls) |
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return (u'%s??%s' % (self.datadir_url, concated)) |
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314 |
|
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315 |
def group_urls(self, urls_spec): |
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316 |
"""parses urls_spec in order to generate concatenated urls |
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317 |
for js and css includes |
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318 |
|
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319 |
This method checks if the file is local and if it shares options |
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320 |
with direct neighbors |
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321 |
:param urls_spec: entire list of urls/filenames to inspect |
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322 |
""" |
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323 |
concatable = [] |
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324 |
prev_islocal = False |
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325 |
prev_key = None |
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326 |
for url, key in urls_spec: |
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327 |
islocal = url.startswith(self.datadir_url) |
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328 |
if concatable and (islocal != prev_islocal or key != prev_key): |
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329 |
yield (self.concat_urls(concatable), prev_key) |
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330 |
del concatable[:] |
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331 |
if not islocal: |
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332 |
yield (url, key) |
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333 |
else: |
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334 |
concatable.append(url) |
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335 |
prev_islocal = islocal |
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336 |
prev_key = key |
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337 |
if concatable: |
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338 |
yield (self.concat_urls(concatable), prev_key) |
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339 |
|
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340 |
|
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[jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
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341 |
def getvalue(self, skiphead=False): |
0 | 342 |
"""reimplement getvalue to provide a consistent (and somewhat browser |
343 |
optimzed cf. http://stevesouders.com/cuzillion) order in external |
|
344 |
resources declaration |
|
345 |
""" |
|
346 |
w = self.write |
|
347 |
# 1/ variable declaration if any |
|
348 |
if self.jsvars: |
|
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349 |
w(self.xhtml_safe_script_opening) |
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350 |
for var, value, override in self.jsvars: |
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[python2.6] careful: json-py provides a json package. We don't want that.
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351 |
vardecl = u'%s = %s;' % (var, json.dumps(value)) |
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352 |
if not override: |
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353 |
vardecl = (u'if (typeof %s == "undefined") {%s}' % |
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354 |
(var, vardecl)) |
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355 |
w(vardecl + u'\n') |
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356 |
w(self.xhtml_safe_script_closing) |
0 | 357 |
# 2/ css files |
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ie_cssfiles = ((x, (y, z)) for x, y, z in self.ie_cssfiles) |
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359 |
if self.datadir_url and self._cw.vreg.config['concat-resources']: |
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360 |
cssfiles = self.group_urls(self.cssfiles) |
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361 |
ie_cssfiles = self.group_urls(ie_cssfiles) |
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362 |
jsfiles = (x for x, _ in self.group_urls((x, None) for x in self.jsfiles)) |
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363 |
else: |
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364 |
cssfiles = self.cssfiles |
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365 |
jsfiles = self.jsfiles |
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366 |
for cssfile, media in cssfiles: |
0 | 367 |
w(u'<link rel="stylesheet" type="text/css" media="%s" href="%s"/>\n' % |
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368 |
(media, xml_escape(cssfile))) |
0 | 369 |
# 3/ ie css if necessary |
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370 |
if self.ie_cssfiles: # use self.ie_cssfiles because `ie_cssfiles` is a genexp |
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diff
changeset
|
371 |
for cssfile, (media, iespec) in ie_cssfiles: |
4860
cedb6afdb7da
[web] fix #736332: iespec functionality for add_css
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
4859
diff
changeset
|
372 |
w(u'<!--%s>\n' % iespec) |
0 | 373 |
w(u'<link rel="stylesheet" type="text/css" media="%s" href="%s"/>\n' % |
3091
c3d73cecb29e
[html-head] escape js and css urls
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
2678
diff
changeset
|
374 |
(media, xml_escape(cssfile))) |
0 | 375 |
w(u'<![endif]--> \n') |
376 |
# 4/ js files |
|
7762
a3f9ba4d44eb
[web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7660
diff
changeset
|
377 |
for jsfile in jsfiles: |
7649
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
378 |
if skiphead: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
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parents:
7575
diff
changeset
|
379 |
# Don't insert <script> tags directly as they would be |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
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parents:
7575
diff
changeset
|
380 |
# interpreted directly by some browsers (e.g. IE). |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
381 |
# Use <pre class="script"> tags instead and let |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
382 |
# `loadAjaxHtmlHead` handle the script insertion / execution. |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
383 |
w(u'<pre class="script" src="%s"></pre>\n' % |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
384 |
xml_escape(jsfile)) |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
385 |
# FIXME: a probably better implementation might be to add |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
386 |
# JS or CSS urls in a JS list that loadAjaxHtmlHead |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
387 |
# would iterate on and postprocess: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
388 |
# cw._ajax_js_scripts.push('myscript.js') |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
389 |
# Then, in loadAjaxHtmlHead, do something like: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
390 |
# jQuery.each(cw._ajax_js_script, jQuery.getScript) |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
391 |
else: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
392 |
w(u'<script type="text/javascript" src="%s"></script>\n' % |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
393 |
xml_escape(jsfile)) |
0 | 394 |
# 5/ post inlined scripts (i.e. scripts depending on other JS files) |
395 |
if self.post_inlined_scripts: |
|
7649
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
396 |
if skiphead: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
397 |
for script in self.post_inlined_scripts: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
398 |
w(u'<pre class="script">') |
7660
a1506b5306cc
closes #1826543: error on some ajax_replace_url call
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7649
diff
changeset
|
399 |
w(xml_escape(script)) |
7649
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
400 |
w(u'</pre>') |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
401 |
else: |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
402 |
w(self.xhtml_safe_script_opening) |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
403 |
w(u'\n\n'.join(self.post_inlined_scripts)) |
ede740bd7077
[ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7575
diff
changeset
|
404 |
w(self.xhtml_safe_script_closing) |
643
616191014b8b
[jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
28
diff
changeset
|
405 |
header = super(HTMLHead, self).getvalue() |
616191014b8b
[jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
28
diff
changeset
|
406 |
if skiphead: |
616191014b8b
[jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
28
diff
changeset
|
407 |
return header |
616191014b8b
[jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
28
diff
changeset
|
408 |
return u'<head>\n%s</head>\n' % header |
1549
f87561822e27
some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents:
1397
diff
changeset
|
409 |
|
0 | 410 |
|
411 |
class HTMLStream(object): |
|
412 |
"""represents a HTML page. |
|
413 |
||
414 |
This is used my main templates so that HTML headers can be added |
|
415 |
at any time during the page generation. |
|
1549
f87561822e27
some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents:
1397
diff
changeset
|
416 |
|
0 | 417 |
HTMLStream uses the (U)StringIO interface to be compliant with |
418 |
existing code. |
|
419 |
""" |
|
1549
f87561822e27
some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents:
1397
diff
changeset
|
420 |
|
0 | 421 |
def __init__(self, req): |
422 |
# stream for <head> |
|
423 |
self.head = req.html_headers |
|
424 |
# main stream |
|
425 |
self.body = UStringIO() |
|
426 |
self.doctype = u'' |
|
427 |
# xmldecl and html opening tag |
|
428 |
self.xmldecl = u'<?xml version="1.0" encoding="%s"?>\n' % req.encoding |
|
7187
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
429 |
self._namespaces = [('xmlns', 'http://www.w3.org/1999/xhtml'), |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
430 |
('xmlns:cubicweb','http://www.logilab.org/2008/cubicweb')] |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
431 |
self._htmlattrs = [('xml:lang', req.lang), |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
432 |
('lang', req.lang)] |
3094
978ed8c2c0e4
[googlemap] #344872 set request content-type to text/html
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3091
diff
changeset
|
433 |
# keep main_stream's reference on req for easier text/html demoting |
978ed8c2c0e4
[googlemap] #344872 set request content-type to text/html
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3091
diff
changeset
|
434 |
req.main_stream = self |
0 | 435 |
|
7187
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
436 |
def add_namespace(self, prefix, uri): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
437 |
self._namespaces.append( (prefix, uri) ) |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
438 |
|
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
439 |
def set_namespaces(self, namespaces): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
440 |
self._namespaces = namespaces |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
441 |
|
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
442 |
def add_htmlattr(self, attrname, attrvalue): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
443 |
self._htmlattrs.append( (attrname, attrvalue) ) |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
444 |
|
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
445 |
def set_htmlattrs(self, attrs): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
446 |
self._htmlattrs = attrs |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
447 |
|
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
448 |
def set_doctype(self, doctype, reset_xmldecl=True): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
449 |
self.doctype = doctype |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
450 |
if reset_xmldecl: |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
451 |
self.xmldecl = u'' |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
452 |
|
0 | 453 |
def write(self, data): |
454 |
"""StringIO interface: this method will be assigned to self.w |
|
455 |
""" |
|
456 |
self.body.write(data) |
|
457 |
||
7187
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
458 |
@property |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
459 |
def htmltag(self): |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
460 |
attrs = ' '.join('%s="%s"' % (attr, xml_escape(value)) |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
461 |
for attr, value in (self._namespaces + self._htmlattrs)) |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
462 |
if attrs: |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
463 |
return '<html %s>' % attrs |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
464 |
return '<html>' |
496f51b92154
[views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7140
diff
changeset
|
465 |
|
0 | 466 |
def getvalue(self): |
467 |
"""writes HTML headers, closes </head> tag and writes HTML body""" |
|
468 |
return u'%s\n%s\n%s\n%s\n%s\n</html>' % (self.xmldecl, self.doctype, |
|
469 |
self.htmltag, |
|
470 |
self.head.getvalue(), |
|
471 |
self.body.getvalue()) |
|
472 |
||
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
473 |
try: |
5389
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
474 |
# may not be there if cubicweb-web not installed |
5940
0e3ae19b181a
[uilib] refactor json_dumps code organization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5883
diff
changeset
|
475 |
if sys.version_info < (2, 6): |
5389
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
476 |
import simplejson as json |
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
477 |
else: |
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
478 |
import json |
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
479 |
except ImportError: |
7575
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
480 |
json_dumps = JSString = None |
5940
0e3ae19b181a
[uilib] refactor json_dumps code organization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5883
diff
changeset
|
481 |
|
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
482 |
else: |
6134
272cfcc10a28
use logilab.common.date.ustrftime in json encoder to work around datetime.strftime limitation on dates < 1900
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6044
diff
changeset
|
483 |
from logilab.common.date import ustrftime |
6176
33ba2c1dbf10
[cw.utils] avoid spurious warning, ustrftime may be globally imported
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6134
diff
changeset
|
484 |
|
5389
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
485 |
class CubicWebJsonEncoder(json.JSONEncoder): |
5377
84d14ddfae13
[python2.6] prefer python2.6's builtin json module over simplejson
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5320
diff
changeset
|
486 |
"""define a json encoder to be able to encode yams std types""" |
5320
848e92bb81cc
[json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
5077
diff
changeset
|
487 |
|
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
488 |
def default(self, obj): |
7876
df15d194a134
[views] implement json / jsonp export views (closes #1942658)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7762
diff
changeset
|
489 |
if hasattr(obj, '__json_encode__'): |
df15d194a134
[views] implement json / jsonp export views (closes #1942658)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7762
diff
changeset
|
490 |
return obj.__json_encode__() |
4466
8b0ca7904820
moved generic datetime manipulation function to lgc
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4335
diff
changeset
|
491 |
if isinstance(obj, datetime.datetime): |
6134
272cfcc10a28
use logilab.common.date.ustrftime in json encoder to work around datetime.strftime limitation on dates < 1900
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6044
diff
changeset
|
492 |
return ustrftime(obj, '%Y/%m/%d %H:%M:%S') |
4466
8b0ca7904820
moved generic datetime manipulation function to lgc
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4335
diff
changeset
|
493 |
elif isinstance(obj, datetime.date): |
6134
272cfcc10a28
use logilab.common.date.ustrftime in json encoder to work around datetime.strftime limitation on dates < 1900
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6044
diff
changeset
|
494 |
return ustrftime(obj, '%Y/%m/%d') |
4466
8b0ca7904820
moved generic datetime manipulation function to lgc
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4335
diff
changeset
|
495 |
elif isinstance(obj, datetime.time): |
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
496 |
return obj.strftime('%H:%M:%S') |
4466
8b0ca7904820
moved generic datetime manipulation function to lgc
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4335
diff
changeset
|
497 |
elif isinstance(obj, datetime.timedelta): |
4000
4b16a7c01a25
fix jsonization of interval
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3902
diff
changeset
|
498 |
return (obj.days * 24 * 60 * 60) + obj.seconds |
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
499 |
elif isinstance(obj, decimal.Decimal): |
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
500 |
return float(obj) |
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
501 |
try: |
5389
809d3b5b3d31
[python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
5377
diff
changeset
|
502 |
return json.JSONEncoder.default(self, obj) |
3371
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
503 |
except TypeError: |
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
504 |
# we never ever want to fail because of an unknown type, |
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
505 |
# just return None in those cases. |
762a7bc3b73d
this has probably be killed by a bad merge...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
3364
diff
changeset
|
506 |
return None |
4652
7c41eea7fc30
restore 3.5 compat for date functions moved to lgc.date in 3.6 (closes #716055)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4511
diff
changeset
|
507 |
|
7876
df15d194a134
[views] implement json / jsonp export views (closes #1942658)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7762
diff
changeset
|
508 |
def json_dumps(value, **kwargs): |
df15d194a134
[views] implement json / jsonp export views (closes #1942658)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7762
diff
changeset
|
509 |
return json.dumps(value, cls=CubicWebJsonEncoder, **kwargs) |
5940
0e3ae19b181a
[uilib] refactor json_dumps code organization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5883
diff
changeset
|
510 |
|
4879
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
511 |
|
7575
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
512 |
class JSString(str): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
513 |
"""use this string sub class in values given to :func:`js_dumps` to |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
514 |
insert raw javascript chain in some JSON string |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
515 |
""" |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
516 |
|
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
517 |
def _dict2js(d, predictable=False): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
518 |
res = [key + ': ' + js_dumps(val, predictable) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
519 |
for key, val in d.iteritems()] |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
520 |
return '{%s}' % ', '.join(res) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
521 |
|
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
522 |
def _list2js(l, predictable=False): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
523 |
return '[%s]' % ', '.join([js_dumps(val, predictable) for val in l]) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
524 |
|
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
525 |
def js_dumps(something, predictable=False): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
526 |
"""similar as :func:`json_dumps`, except values which are instances of |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
527 |
:class:`JSString` are expected to be valid javascript and will be output |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
528 |
as is |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
529 |
|
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
530 |
>>> js_dumps({'hop': JSString('$.hop'), 'bar': None}, predictable=True) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
531 |
'{bar: null, hop: $.hop}' |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
532 |
>>> js_dumps({'hop': '$.hop'}) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
533 |
'{hop: "$.hop"}' |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
534 |
>>> js_dumps({'hip': {'hop': JSString('momo')}}) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
535 |
'{hip: {hop: momo}}' |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
536 |
""" |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
537 |
if isinstance(something, dict): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
538 |
return _dict2js(something, predictable) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
539 |
if isinstance(something, list): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
540 |
return _list2js(something, predictable) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
541 |
if isinstance(something, JSString): |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
542 |
return something |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
543 |
return json_dumps(something) |
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
544 |
|
7998
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
545 |
PERCENT_IN_URLQUOTE_RE = re.compile(r'%(?=[0-9a-fA-F]{2})') |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
546 |
def js_href(javascript_code): |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
547 |
"""Generate a "javascript: ..." string for an href attribute. |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
548 |
|
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
549 |
Some % which may be interpreted in a href context will be escaped. |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
550 |
|
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
551 |
In an href attribute, url-quotes-looking fragments are interpreted before |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
552 |
being given to the javascript engine. Valid url quotes are in the form |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
553 |
``%xx`` with xx being a byte in hexadecimal form. This means that ``%toto`` |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
554 |
will be unaltered but ``%babar`` will be mangled because ``ba`` is the |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
555 |
hexadecimal representation of 186. |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
556 |
|
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
557 |
>>> js_href('alert("babar");') |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
558 |
'javascript: alert("babar");' |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
559 |
>>> js_href('alert("%babar");') |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
560 |
'javascript: alert("%25babar");' |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
561 |
>>> js_href('alert("%toto %babar");') |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
562 |
'javascript: alert("%toto %25babar");' |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
563 |
>>> js_href('alert("%1337%");') |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
564 |
'javascript: alert("%251337%");' |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
565 |
""" |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
566 |
return 'javascript: ' + PERCENT_IN_URLQUOTE_RE.sub(r'%25', javascript_code) |
9ef285eb20f4
[utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
7990
diff
changeset
|
567 |
|
7575
335f14e8e5a7
[uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7569
diff
changeset
|
568 |
|
4879
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
569 |
@deprecated('[3.7] merge_dicts is deprecated') |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
570 |
def merge_dicts(dict1, dict2): |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
571 |
"""update a copy of `dict1` with `dict2`""" |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
572 |
dict1 = dict(dict1) |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
573 |
dict1.update(dict2) |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
574 |
return dict1 |
56c16efedc51
deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4844
diff
changeset
|
575 |
|
7954
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
576 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
577 |
logger = getLogger('cubicweb.utils') |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
578 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
579 |
class QueryCache(object): |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
580 |
""" a minimalist dict-like object to be used by the querier |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
581 |
and native source (replaces lgc.cache for this very usage) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
582 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
583 |
To be efficient it must be properly used. The usage patterns are |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
7876
diff
changeset
|
584 |
quite specific to its current clients. |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
585 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
586 |
The ceiling value should be sufficiently high, else it will be |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
587 |
ruthlessly inefficient (there will be warnings when this happens). |
a3d3220669d6
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|
588 |
A good (high enough) value can only be set on a per-application |
a3d3220669d6
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changeset
|
589 |
value. A default, reasonnably high value is provided but tuning |
a3d3220669d6
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diff
changeset
|
590 |
e.g `rql-cache-size` can certainly help. |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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diff
changeset
|
591 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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diff
changeset
|
592 |
There are two kinds of elements to put in this cache: |
a3d3220669d6
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|
593 |
* frequently used elements |
a3d3220669d6
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changeset
|
594 |
* occasional elements |
a3d3220669d6
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diff
changeset
|
595 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
596 |
The former should finish in the _permanent structure after some |
a3d3220669d6
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changeset
|
597 |
warmup. |
a3d3220669d6
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diff
changeset
|
598 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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diff
changeset
|
599 |
Occasional elements can be buggy requests (server-side) or |
a3d3220669d6
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diff
changeset
|
600 |
end-user (web-ui provided) requests. These have to be cleaned up |
a3d3220669d6
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diff
changeset
|
601 |
when they fill the cache, without evicting the usefull, frequently |
a3d3220669d6
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|
602 |
used entries. |
a3d3220669d6
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changeset
|
603 |
""" |
a3d3220669d6
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changeset
|
604 |
# quite arbitrary, but we want to never |
a3d3220669d6
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changeset
|
605 |
# immortalize some use-a-little query |
a3d3220669d6
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|
606 |
_maxlevel = 15 |
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changeset
|
607 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
608 |
def __init__(self, ceiling=3000): |
a3d3220669d6
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|
609 |
self._max = ceiling |
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|
610 |
# keys belonging forever to this cache |
a3d3220669d6
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|
611 |
self._permanent = set() |
a3d3220669d6
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changeset
|
612 |
# mapping of key (that can get wiped) to getitem count |
a3d3220669d6
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|
613 |
self._transient = {} |
a3d3220669d6
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|
614 |
self._data = {} |
a3d3220669d6
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|
615 |
self._lock = Lock() |
a3d3220669d6
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changeset
|
616 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
617 |
def __len__(self): |
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|
618 |
with self._lock: |
a3d3220669d6
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|
619 |
return len(self._data) |
a3d3220669d6
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changeset
|
620 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
621 |
def __getitem__(self, k): |
a3d3220669d6
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|
622 |
with self._lock: |
a3d3220669d6
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changeset
|
623 |
if k in self._permanent: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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|
624 |
return self._data[k] |
a3d3220669d6
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|
625 |
v = self._transient.get(k, _MARKER) |
a3d3220669d6
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changeset
|
626 |
if v is _MARKER: |
a3d3220669d6
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changeset
|
627 |
self._transient[k] = 1 |
a3d3220669d6
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changeset
|
628 |
return self._data[k] |
a3d3220669d6
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changeset
|
629 |
if v > self._maxlevel: |
a3d3220669d6
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changeset
|
630 |
self._permanent.add(k) |
a3d3220669d6
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changeset
|
631 |
self._transient.pop(k, None) |
a3d3220669d6
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changeset
|
632 |
else: |
a3d3220669d6
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Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
633 |
self._transient[k] += 1 |
a3d3220669d6
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changeset
|
634 |
return self._data[k] |
a3d3220669d6
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changeset
|
635 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
636 |
def __setitem__(self, k, v): |
a3d3220669d6
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changeset
|
637 |
with self._lock: |
a3d3220669d6
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changeset
|
638 |
if len(self._data) >= self._max: |
a3d3220669d6
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changeset
|
639 |
self._try_to_make_room() |
a3d3220669d6
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changeset
|
640 |
self._data[k] = v |
a3d3220669d6
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changeset
|
641 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
642 |
def pop(self, key, default=_MARKER): |
a3d3220669d6
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changeset
|
643 |
with self._lock: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
644 |
try: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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diff
changeset
|
645 |
if default is _MARKER: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
646 |
return self._data.pop(key) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
647 |
return self._data.pop(key, default) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
648 |
finally: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
649 |
if key in self._permanent: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
650 |
self._permanent.remove(key) |
a3d3220669d6
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diff
changeset
|
651 |
else: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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diff
changeset
|
652 |
self._transient.pop(key, None) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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diff
changeset
|
653 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
654 |
def clear(self): |
a3d3220669d6
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changeset
|
655 |
with self._lock: |
a3d3220669d6
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changeset
|
656 |
self._clear() |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
657 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
658 |
def _clear(self): |
a3d3220669d6
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changeset
|
659 |
self._permanent = set() |
a3d3220669d6
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changeset
|
660 |
self._transient = {} |
a3d3220669d6
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changeset
|
661 |
self._data = {} |
a3d3220669d6
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diff
changeset
|
662 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
663 |
def _try_to_make_room(self): |
a3d3220669d6
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changeset
|
664 |
current_size = len(self._data) |
a3d3220669d6
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changeset
|
665 |
items = sorted(self._transient.items(), key=itemgetter(1)) |
a3d3220669d6
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changeset
|
666 |
level = 0 |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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changeset
|
667 |
for k, v in items: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
668 |
self._data.pop(k, None) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
669 |
self._transient.pop(k, None) |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
670 |
if v > level: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
671 |
datalen = len(self._data) |
a3d3220669d6
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changeset
|
672 |
if datalen == 0: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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changeset
|
673 |
return |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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diff
changeset
|
674 |
if (current_size - datalen) / datalen > .1: |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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diff
changeset
|
675 |
break |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
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676 |
level = v |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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|
677 |
else: |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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|
678 |
# we removed cruft but everything is permanent |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
679 |
if len(self._data) >= self._max: |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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680 |
logger.warning('Cache %s is full.' % id(self)) |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
681 |
self._clear() |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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changeset
|
682 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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|
683 |
def _usage_report(self): |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
684 |
with self._lock: |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
685 |
return {'itemcount': len(self._data), |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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686 |
'transientcount': len(self._transient), |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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687 |
'permanentcount': len(self._permanent)} |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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changeset
|
688 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
689 |
def popitem(self): |
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parents:
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690 |
raise NotImplementedError() |
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parents:
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changeset
|
691 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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|
692 |
def setdefault(self, key, default=None): |
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[cache] replace lgc.cache with something more appropriate (closes #1921713)
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parents:
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|
693 |
raise NotImplementedError() |
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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changeset
|
694 |
|
a3d3220669d6
[cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
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|
695 |
def update(self, other): |
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parents:
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|
696 |
raise NotImplementedError() |