author | Denis Laxalde <denis.laxalde@logilab.fr> |
Fri, 20 Sep 2013 15:42:04 +0200 | |
branch | stable |
changeset 9263 | 42cc70a1b6ac |
parent 8900 | 010a59e12d89 |
permissions | -rw-r--r-- |
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[vreg] move base registry implementation to logilab.common. Closes #1916014
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# copyright 2003-2012 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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# 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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proper licensing information (LGPL-2.1). Hope I get it right this time.
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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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"""mixins of entity/views organized somewhat in a graph or tree structure""" |
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__docformat__ = "restructuredtext en" |
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missing import
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from itertools import chain |
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from logilab.common.decorators import cached |
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from logilab.common.deprecation import deprecated, class_deprecated |
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from cubicweb.predicates import implements |
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from cubicweb.interfaces import ITree |
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class TreeMixIn(object): |
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"""base tree-mixin implementing the tree interface |
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This mixin has to be inherited explicitly and configured using the |
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tree_attribute, parent_target and children_target class attribute to |
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benefit from this default implementation |
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""" |
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__metaclass__ = class_deprecated |
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__deprecation_warning__ = '[3.9] TreeMixIn is deprecated, use/override ITreeAdapter instead (%(cls)s)' |
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tree_attribute = None |
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# XXX misnamed |
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parent_target = 'subject' |
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children_target = 'object' |
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def different_type_children(self, entities=True): |
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"""return children entities of different type as this entity. |
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according to the `entities` parameter, return entity objects or the |
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equivalent result set |
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""" |
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res = self.related(self.tree_attribute, self.children_target, |
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entities=entities) |
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if entities: |
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return [e for e in res if e.e_schema != self.e_schema] |
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return res.filtered_rset(lambda x: x.e_schema != self.e_schema, self.cw_col) |
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def same_type_children(self, entities=True): |
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"""return children entities of the same type as this entity. |
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according to the `entities` parameter, return entity objects or the |
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equivalent result set |
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""" |
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res = self.related(self.tree_attribute, self.children_target, |
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entities=entities) |
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if entities: |
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return [e for e in res if e.e_schema == self.e_schema] |
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return res.filtered_rset(lambda x: x.e_schema is self.e_schema, self.cw_col) |
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def iterchildren(self, _done=None): |
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if _done is None: |
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_done = set() |
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for child in self.children(): |
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if child.eid in _done: |
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self.error('loop in %s tree: %s', self.__regid__.lower(), child) |
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continue |
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yield child |
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_done.add(child.eid) |
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def prefixiter(self, _done=None): |
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if _done is None: |
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_done = set() |
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if self.eid in _done: |
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return |
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_done.add(self.eid) |
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yield self |
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for child in self.same_type_children(): |
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for entity in child.prefixiter(_done): |
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yield entity |
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@cached |
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def path(self): |
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"""returns the list of eids from the root object to this object""" |
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path = [] |
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parent = self |
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while parent: |
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if parent.eid in path: |
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self.error('loop in %s tree: %s', self.__regid__.lower(), parent) |
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break |
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path.append(parent.eid) |
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try: |
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# check we are not leaving the tree |
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if (parent.tree_attribute != self.tree_attribute or |
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parent.parent_target != self.parent_target): |
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break |
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parent = parent.parent() |
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except AttributeError: |
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break |
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path.reverse() |
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return path |
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def iterparents(self, strict=True): |
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def _uptoroot(self): |
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curr = self |
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while True: |
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curr = curr.parent() |
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if curr is None: |
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break |
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yield curr |
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if not strict: |
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return chain([self], _uptoroot(self)) |
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return _uptoroot(self) |
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## ITree interface ######################################################## |
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def parent(self): |
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"""return the parent entity if any, else None (e.g. if we are on the |
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root |
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""" |
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try: |
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return self.related(self.tree_attribute, self.parent_target, |
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entities=True)[0] |
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except (KeyError, IndexError): |
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return None |
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def children(self, entities=True, sametype=False): |
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"""return children entities |
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according to the `entities` parameter, return entity objects or the |
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equivalent result set |
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""" |
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if sametype: |
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return self.same_type_children(entities) |
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else: |
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return self.related(self.tree_attribute, self.children_target, |
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entities=entities) |
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def children_rql(self): |
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return self.cw_related_rql(self.tree_attribute, self.children_target) |
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def is_leaf(self): |
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return len(self.children()) == 0 |
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def is_root(self): |
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return self.parent() is None |
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def root(self): |
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"""return the root object""" |
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return self._cw.entity_from_eid(self.path()[0]) |
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class EmailableMixIn(object): |
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"""base mixin providing the default get_email() method used by |
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the massmailing view |
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NOTE: The default implementation is based on the |
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primary_email / use_email scheme |
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""" |
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@deprecated("[3.9] use entity.cw_adapt_to('IEmailable').get_email()") |
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def get_email(self): |
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if getattr(self, 'primary_email', None): |
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return self.primary_email[0].address |
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if getattr(self, 'use_email', None): |
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return self.use_email[0].address |
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return None |
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"""pluggable mixins system: plug classes registered in MI_REL_TRIGGERS on entity |
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classes which have the relation described by the dict's key. |
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NOTE: pluggable mixins can't override any method of the 'explicit' user classes tree |
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(eg without plugged classes). This includes bases Entity and AnyEntity classes. |
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""" |
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MI_REL_TRIGGERS = { |
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('primary_email', 'subject'): EmailableMixIn, |
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('use_email', 'subject'): EmailableMixIn, |
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} |
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# XXX move to cubicweb.web.views.treeview once we delete usage from this file |
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def _done_init(done, view, row, col): |
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"""handle an infinite recursion safety belt""" |
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if done is None: |
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done = set() |
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entity = view.cw_rset.get_entity(row, col) |
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if entity.eid in done: |
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msg = entity._cw._('loop in %(rel)s relation (%(eid)s)') % { |
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'rel': entity.cw_adapt_to('ITree').tree_relation, |
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'eid': entity.eid |
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} |
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return None, msg |
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done.add(entity.eid) |
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return done, entity |
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0 | 204 |
|
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class TreeViewMixIn(object): |
|
206 |
"""a recursive tree view""" |
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__metaclass__ = class_deprecated |
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__deprecation_warning__ = '[3.9] TreeViewMixIn is deprecated, use/override BaseTreeView instead (%(cls)s)' |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5424
diff
changeset
|
209 |
|
3457
0924d0d08d60
[api] __regid__, cw_* and friends
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3451
diff
changeset
|
210 |
__regid__ = 'tree' |
5895
6a3f776292a5
[selectors]Â avoid spurious warning when using implements by design
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5718
diff
changeset
|
211 |
__select__ = implements(ITree, warn=False) |
0 | 212 |
item_vid = 'treeitem' |
213 |
||
214 |
def call(self, done=None, **kwargs): |
|
215 |
if done is None: |
|
216 |
done = set() |
|
217 |
super(TreeViewMixIn, self).call(done=done, **kwargs) |
|
1451 | 218 |
|
5718
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
219 |
def cell_call(self, row, col=0, vid=None, done=None, maxlevel=None, **kwargs): |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
220 |
assert maxlevel is None or maxlevel > 0 |
0 | 221 |
done, entity = _done_init(done, self, row, col) |
222 |
if done is None: |
|
223 |
# entity is actually an error message |
|
224 |
self.w(u'<li class="badcontent">%s</li>' % entity) |
|
225 |
return |
|
226 |
self.open_item(entity) |
|
227 |
entity.view(vid or self.item_vid, w=self.w, **kwargs) |
|
5718
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
228 |
if maxlevel is not None: |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
229 |
maxlevel -= 1 |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
230 |
if maxlevel == 0: |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
231 |
self.close_item(entity) |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
232 |
return |
0 | 233 |
relatedrset = entity.children(entities=False) |
5718
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
234 |
self.wview(self.__regid__, relatedrset, 'null', done=done, |
8d246203730a
[ITree] fix adapter/_done_init to handle tree_[attribute|relation], add maxlevel argument to base tree view since one side effect of the new code is that it find tree view for entity types it didn't find before, hence one may want to limit tree view depth when it wasn't necessary before
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5569
diff
changeset
|
235 |
maxlevel=maxlevel, **kwargs) |
0 | 236 |
self.close_item(entity) |
237 |
||
238 |
def open_item(self, entity): |
|
8900
010a59e12d89
use cw_etype instead of __regid__
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
8190
diff
changeset
|
239 |
self.w(u'<li class="%s">\n' % entity.cw_etype.lower()) |
0 | 240 |
def close_item(self, entity): |
241 |
self.w(u'</li>\n') |
|
242 |
||
243 |
||
244 |
class TreePathMixIn(object): |
|
245 |
"""a recursive path view""" |
|
5556
9ab2b4c74baf
[entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5424
diff
changeset
|
246 |
__metaclass__ = class_deprecated |
6515
6e998b1be7fd
[3.10] enhanced deprecation warning: add problematic class name
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6011
diff
changeset
|
247 |
__deprecation_warning__ = '[3.9] TreePathMixIn is deprecated, use/override TreePathView instead (%(cls)s)' |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3426
diff
changeset
|
248 |
__regid__ = 'path' |
0 | 249 |
item_vid = 'oneline' |
2996
866a2c135c33
B #345282 xhtml requires to use   instead of
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
2748
diff
changeset
|
250 |
separator = u' > ' |
0 | 251 |
|
252 |
def call(self, **kwargs): |
|
253 |
self.w(u'<div class="pathbar">') |
|
254 |
super(TreePathMixIn, self).call(**kwargs) |
|
255 |
self.w(u'</div>') |
|
1451 | 256 |
|
0 | 257 |
def cell_call(self, row, col=0, vid=None, done=None, **kwargs): |
258 |
done, entity = _done_init(done, self, row, col) |
|
259 |
if done is None: |
|
260 |
# entity is actually an error message |
|
261 |
self.w(u'<span class="badcontent">%s</span>' % entity) |
|
262 |
return |
|
263 |
parent = entity.parent() |
|
264 |
if parent: |
|
3457
0924d0d08d60
[api] __regid__, cw_* and friends
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3451
diff
changeset
|
265 |
parent.view(self.__regid__, w=self.w, done=done) |
0 | 266 |
self.w(self.separator) |
267 |
entity.view(vid or self.item_vid, w=self.w) |
|
268 |
||
269 |
||
270 |
class ProgressMixIn(object): |
|
5309
e8567135a927
[doc/book] fix docstrings, add notes
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
4719
diff
changeset
|
271 |
"""provide a default implementations for IProgress interface methods""" |
5556
9ab2b4c74baf
[entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5424
diff
changeset
|
272 |
__metaclass__ = class_deprecated |
6515
6e998b1be7fd
[3.10] enhanced deprecation warning: add problematic class name
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6011
diff
changeset
|
273 |
__deprecation_warning__ = '[3.9] ProgressMixIn is deprecated, use/override IProgressAdapter instead (%(cls)s)' |
0 | 274 |
|
275 |
@property |
|
276 |
def cost(self): |
|
277 |
return self.progress_info()['estimated'] |
|
278 |
||
279 |
@property |
|
280 |
def revised_cost(self): |
|
281 |
return self.progress_info().get('estimatedcorrected', self.cost) |
|
282 |
||
283 |
@property |
|
284 |
def done(self): |
|
285 |
return self.progress_info()['done'] |
|
286 |
||
287 |
@property |
|
288 |
def todo(self): |
|
289 |
return self.progress_info()['todo'] |
|
290 |
||
291 |
@cached |
|
292 |
def progress_info(self): |
|
293 |
raise NotImplementedError() |
|
294 |
||
295 |
def finished(self): |
|
296 |
return not self.in_progress() |
|
297 |
||
298 |
def in_progress(self): |
|
299 |
raise NotImplementedError() |
|
1451 | 300 |
|
0 | 301 |
def progress(self): |
302 |
try: |
|
303 |
return 100. * self.done / self.revised_cost |
|
304 |
except ZeroDivisionError: |
|
305 |
# total cost is 0 : if everything was estimated, task is completed |
|
961 | 306 |
if self.progress_info().get('notestimated'): |
0 | 307 |
return 0. |
308 |
return 100 |