web/views/ajaxcontroller.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Thu, 14 Feb 2013 15:38:25 +0100
changeset 8695 358d8bed9626
parent 8535 268b6349baf3
child 8974 c8520188eb4b
permissions -rw-r--r--
[toward-py3k] rewrite to "except AnException as exc:" (part of #2711624) The older form is not necessary since we dropped python 2.5 compability. This will help Python 3.3 experimentation.
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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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# 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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#
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# (disable pylint msg for client obj access to protected member as in obj._cw)
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# pylint: disable=W0212
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"""The ``ajaxcontroller`` module defines the :class:`AjaxController`
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controller and the ``ajax-func`` cubicweb registry.
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.. autoclass:: cubicweb.web.views.ajaxcontroller.AjaxController
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   :members:
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``ajax-funcs`` registry hosts exposed remote functions, that is
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functions that can be called from the javascript world.
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To register a new remote function, either decorate your function
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with the :func:`~cubicweb.web.views.ajaxcontroller.ajaxfunc` decorator:
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.. sourcecode:: python
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    from cubicweb.predicates import mactch_user_groups
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    from cubicweb.web.views.ajaxcontroller import ajaxfunc
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    @ajaxfunc(output_type='json', selector=match_user_groups('managers'))
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    def list_users(self):
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        return [u for (u,) in self._cw.execute('Any L WHERE U login L')]
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or inherit from :class:`~cubicweb.web.views.ajaxcontroller.AjaxFunction` and
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implement the ``__call__`` method:
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.. sourcecode:: python
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    from cubicweb.web.views.ajaxcontroller import AjaxFunction
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    class ListUser(AjaxFunction):
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        __regid__ = 'list_users' # __regid__ is the name of the exposed function
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        __select__ = match_user_groups('managers')
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        output_type = 'json'
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        def __call__(self):
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            return [u for (u, ) in self._cw.execute('Any L WHERE U login L')]
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.. autoclass:: cubicweb.web.views.ajaxcontroller.AjaxFunction
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   :members:
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.. autofunction:: cubicweb.web.views.ajaxcontroller.ajaxfunc
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"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from functools import partial
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from logilab.common.date import strptime
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from logilab.common.registry import yes
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from logilab.common.deprecation import deprecated
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from cubicweb import ObjectNotFound, NoSelectableObject
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from cubicweb.appobject import AppObject
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from cubicweb.utils import json, json_dumps, UStringIO
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from cubicweb.uilib import exc_message
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from cubicweb.web import RemoteCallFailed, DirectResponse
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from cubicweb.web.controller import Controller
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from cubicweb.web.views import vid_from_rset
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from cubicweb.web.views import basecontrollers
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def optional_kwargs(extraargs):
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    if extraargs is None:
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        return {}
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    # we receive unicode keys which is not supported by the **syntax
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    return dict((str(key), value) for key, value in extraargs.iteritems())
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class AjaxController(Controller):
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    """AjaxController handles ajax remote calls from javascript
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    The following javascript function call:
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    .. sourcecode:: javascript
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      var d = asyncRemoteExec('foo', 12, "hello");
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      d.addCallback(function(result) {
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    99
          alert('server response is: ' + result);
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   100
      });
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   101
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   102
    will generate an ajax HTTP GET on the following url::
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   103
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   104
        BASE_URL/ajax?fname=foo&arg=12&arg="hello"
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   105
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   106
    The AjaxController controller will therefore be selected to handle those URLs
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   107
    and will itself select the :class:`cubicweb.web.views.ajaxcontroller.AjaxFunction`
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   108
    matching the *fname* parameter.
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   109
    """
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   110
    __regid__ = 'ajax'
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   111
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   112
    def publish(self, rset=None):
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   113
        self._cw.ajax_request = True
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   114
        try:
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   115
            fname = self._cw.form['fname']
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   116
        except KeyError:
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   117
            raise RemoteCallFailed('no method specified')
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   118
        # 1/ check first for old-style (JSonController) ajax func for bw compat
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   119
        try:
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   120
            func = getattr(basecontrollers.JSonController, 'js_%s' % fname).im_func
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   121
            func = partial(func, self)
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   122
        except AttributeError:
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   123
            # 2/ check for new-style (AjaxController) ajax func
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   124
            try:
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   125
                func = self._cw.vreg['ajax-func'].select(fname, self._cw)
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   126
            except ObjectNotFound:
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   127
                raise RemoteCallFailed('no %s method' % fname)
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   128
        else:
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   129
            warn('[3.15] remote function %s found on JSonController, '
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   130
                 'use AjaxFunction / @ajaxfunc instead' % fname,
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   131
                 DeprecationWarning, stacklevel=2)
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   132
        # no <arg> attribute means the callback takes no argument
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   133
        args = self._cw.form.get('arg', ())
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   134
        if not isinstance(args, (list, tuple)):
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   135
            args = (args,)
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   136
        try:
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   137
            args = [json.loads(arg) for arg in args]
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   138
        except ValueError as exc:
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   139
            self.exception('error while decoding json arguments for '
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   140
                           'js_%s: %s (err: %s)', fname, args, exc)
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   141
            raise RemoteCallFailed(exc_message(exc, self._cw.encoding))
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   142
        try:
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   143
            result = func(*args)
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   144
        except (RemoteCallFailed, DirectResponse):
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   145
            raise
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   146
        except Exception as exc:
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   147
            self.exception('an exception occurred while calling js_%s(%s): %s',
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   148
                           fname, args, exc)
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   149
            raise RemoteCallFailed(exc_message(exc, self._cw.encoding))
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   150
        if result is None:
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   151
            return ''
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   152
        # get unicode on @htmlize methods, encoded string on @jsonize methods
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   153
        elif isinstance(result, unicode):
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   154
            return result.encode(self._cw.encoding)
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   155
        return result
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   156
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   157
class AjaxFunction(AppObject):
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   158
    """
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   159
    Attributes on this base class are:
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   160
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   161
    :attr: `check_pageid`: make sure the pageid received is valid before proceeding
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   162
    :attr: `output_type`:
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   163
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   164
           - *None*: no processing, no change on content-type
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   165
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   166
           - *json*: serialize with `json_dumps` and set *application/json*
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   167
                     content-type
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   168
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   169
           - *xhtml*: wrap result in an XML node and forces HTML / XHTML
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   170
                      content-type (use ``_cw.html_content_type()``)
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   171
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   172
    """
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   173
    __registry__ = 'ajax-func'
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   174
    __select__ = yes()
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   175
    __abstract__ = True
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   176
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   177
    check_pageid = False
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   178
    output_type = None
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   179
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   180
    @staticmethod
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   181
    def _rebuild_posted_form(names, values, action=None):
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   182
        form = {}
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   183
        for name, value in zip(names, values):
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   184
            # remove possible __action_xxx inputs
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   185
            if name.startswith('__action'):
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   186
                if action is None:
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   187
                    # strip '__action_' to get the actual action name
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   188
                    action = name[9:]
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   189
                continue
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   190
            # form.setdefault(name, []).append(value)
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   191
            if name in form:
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   192
                curvalue = form[name]
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   193
                if isinstance(curvalue, list):
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   194
                    curvalue.append(value)
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   195
                else:
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   196
                    form[name] = [curvalue, value]
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   197
            else:
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   198
                form[name] = value
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        # simulate click on __action_%s button to help the controller
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   200
        if action:
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            form['__action_%s' % action] = u'whatever'
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   202
        return form
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   203
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    def validate_form(self, action, names, values):
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        self._cw.form = self._rebuild_posted_form(names, values, action)
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        return basecontrollers._validate_form(self._cw, self._cw.vreg)
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   207
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    def _exec(self, rql, args=None, rocheck=True):
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        """json mode: execute RQL and return resultset as json"""
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        rql = rql.strip()
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   211
        if rql.startswith('rql:'):
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   212
            rql = rql[4:]
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   213
        if rocheck:
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            self._cw.ensure_ro_rql(rql)
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        try:
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            return self._cw.execute(rql, args)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
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   217
        except Exception as ex:
8128
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            self.exception("error in _exec(rql=%s): %s", rql, ex)
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            return None
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        return None
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   221
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   222
    def _call_view(self, view, paginate=False, **kwargs):
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        divid = self._cw.form.get('divid')
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   224
        # we need to call pagination before with the stream set
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   225
        try:
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   226
            stream = view.set_stream()
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   227
        except AttributeError:
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   228
            stream = UStringIO()
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   229
            kwargs['w'] = stream.write
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   230
            assert not paginate
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   231
        if divid == 'pageContent':
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            # ensure divid isn't reused by the view (e.g. table view)
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   233
            del self._cw.form['divid']
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   234
            # mimick main template behaviour
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   235
            stream.write(u'<div id="pageContent">')
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   236
            vtitle = self._cw.form.get('vtitle')
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   237
            if vtitle:
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   238
                stream.write(u'<h1 class="vtitle">%s</h1>\n' % vtitle)
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   239
            paginate = True
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   240
        nav_html = UStringIO()
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   241
        if paginate and not view.handle_pagination:
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   242
            view.paginate(w=nav_html.write)
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   243
        stream.write(nav_html.getvalue())
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   244
        if divid == 'pageContent':
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   245
            stream.write(u'<div id="contentmain">')
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   246
        view.render(**kwargs)
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   247
        extresources = self._cw.html_headers.getvalue(skiphead=True)
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   248
        if extresources:
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   249
            stream.write(u'<div class="ajaxHtmlHead">\n') # XXX use a widget ?
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   250
            stream.write(extresources)
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   251
            stream.write(u'</div>\n')
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   252
        if divid == 'pageContent':
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   253
            stream.write(u'</div>%s</div>' % nav_html.getvalue())
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   254
        return stream.getvalue()
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   255
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   256
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   257
def _ajaxfunc_factory(implementation, selector=yes(), _output_type=None,
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   258
                      _check_pageid=False, regid=None):
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   259
    """converts a standard python function into an AjaxFunction appobject"""
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   260
    class AnAjaxFunc(AjaxFunction):
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   261
        __regid__ = regid or implementation.__name__
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   262
        __select__ = selector
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   263
        output_type = _output_type
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   264
        check_pageid = _check_pageid
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   265
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   266
        def serialize(self, content):
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   267
            if self.output_type is None:
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   268
                return content
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   269
            elif self.output_type == 'xhtml':
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   270
                self._cw.set_content_type(self._cw.html_content_type())
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   271
                return ''.join((self._cw.document_surrounding_div(),
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   272
                                content.strip(), u'</div>'))
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   273
            elif self.output_type == 'json':
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   274
                self._cw.set_content_type('application/json')
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   275
                return json_dumps(content)
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   276
            raise RemoteCallFailed('no serializer found for output type %s'
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   277
                                   % self.output_type)
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   278
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   279
        def __call__(self, *args, **kwargs):
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   280
            if self.check_pageid:
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   281
                data = self._cw.session.data.get(self._cw.pageid)
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   282
                if data is None:
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   283
                    raise RemoteCallFailed(self._cw._('pageid-not-found'))
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   284
            return self.serialize(implementation(self, *args, **kwargs))
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   285
8128
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   286
    AnAjaxFunc.__name__ = implementation.__name__
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   287
    # make sure __module__ refers to the original module otherwise
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   288
    # vreg.register(obj) will ignore ``obj``.
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   289
    AnAjaxFunc.__module__ = implementation.__module__
8437
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   290
    # relate the ``implementation`` object to its wrapper appobject
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   291
    # will be used by e.g.:
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   292
    #   import base_module
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   293
    #   @ajaxfunc
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   294
    #   def foo(self):
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   295
    #       return 42
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    #   assert foo(object) == 42
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    #   vreg.register_and_replace(foo, base_module.older_foo)
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    implementation.__appobject__ = AnAjaxFunc
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    return implementation
8128
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def ajaxfunc(implementation=None, selector=yes(), output_type=None,
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             check_pageid=False, regid=None):
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    """promote a standard function to an ``AjaxFunction`` appobject.
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    All parameters are optional:
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    :param selector: a custom selector object if needed, default is ``yes()``
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    :param output_type: either None, 'json' or 'xhtml' to customize output
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                        content-type. Default is None
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    :param check_pageid: whether the function requires a valid `pageid` or not
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                         to proceed. Default is False.
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    :param regid: a custom __regid__ for the created ``AjaxFunction`` object. Default
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                  is to keep the wrapped function name.
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    ``ajaxfunc`` can be used both as a standalone decorator:
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    .. sourcecode:: python
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        @ajaxfunc
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        def my_function(self):
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            return 42
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    or as a parametrizable decorator:
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    .. sourcecode:: python
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        @ajaxfunc(output_type='json')
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        def my_function(self):
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            return 42
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    """
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    # if used as a parametrized decorator (e.g. @ajaxfunc(output_type='json'))
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   337
    if implementation is None:
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   338
        def _decorator(func):
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            return _ajaxfunc_factory(func, selector=selector,
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                                     _output_type=output_type,
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                                     _check_pageid=check_pageid,
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                                     regid=regid)
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        return _decorator
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    # else, used as a standalone decorator (i.e. @ajaxfunc)
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    return _ajaxfunc_factory(implementation, selector=selector,
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                             _output_type=output_type,
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                             _check_pageid=check_pageid, regid=regid)
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   350
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###############################################################################
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#  Cubicweb remote functions for :                                            #
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   353
#  - appobject rendering                                                      #
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#  - user / page session data management                                      #
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###############################################################################
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   356
@ajaxfunc(output_type='xhtml')
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   357
def view(self):
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   358
    # XXX try to use the page-content template
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   359
    req = self._cw
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    rql = req.form.get('rql')
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   361
    if rql:
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        rset = self._exec(rql)
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   363
    elif 'eid' in req.form:
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   364
        rset = self._cw.eid_rset(req.form['eid'])
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   365
    else:
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   366
        rset = None
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   367
    vid = req.form.get('vid') or vid_from_rset(req, rset, self._cw.vreg.schema)
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   368
    try:
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   369
        viewobj = self._cw.vreg['views'].select(vid, req, rset=rset)
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   370
    except NoSelectableObject:
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   371
        vid = req.form.get('fallbackvid', 'noresult')
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   372
        viewobj = self._cw.vreg['views'].select(vid, req, rset=rset)
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   373
    viewobj.set_http_cache_headers()
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   374
    req.validate_cache()
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   375
    return self._call_view(viewobj, paginate=req.form.pop('paginate', False))
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   376
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   377
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   378
@ajaxfunc(output_type='xhtml')
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   379
def component(self, compid, rql, registry='components', extraargs=None):
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   380
    if rql:
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   381
        rset = self._exec(rql)
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   382
    else:
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   383
        rset = None
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   384
    # XXX while it sounds good, addition of the try/except below cause pb:
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   385
    # when filtering using facets return an empty rset, the edition box
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   386
    # isn't anymore selectable, as expected. The pb is that with the
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   387
    # try/except below, we see a "an error occurred" message in the ui, while
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   388
    # we don't see it without it. Proper fix would probably be to deal with
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   389
    # this by allowing facet handling code to tell to js_component that such
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   390
    # error is expected and should'nt be reported.
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   391
    #try:
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   392
    comp = self._cw.vreg[registry].select(compid, self._cw, rset=rset,
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   393
                                          **optional_kwargs(extraargs))
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diff changeset
   394
    #except NoSelectableObject:
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395
    #    raise RemoteCallFailed('unselectable')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
    return self._call_view(comp, **optional_kwargs(extraargs))
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   398
@ajaxfunc(output_type='xhtml')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
def render(self, registry, oid, eid=None,
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   400
              selectargs=None, renderargs=None):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   401
    if eid is not None:
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
        rset = self._cw.eid_rset(eid)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
        # XXX set row=0
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   404
    elif self._cw.form.get('rql'):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
        rset = self._cw.execute(self._cw.form['rql'])
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
    else:
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
        rset = None
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   408
    viewobj = self._cw.vreg[registry].select(oid, self._cw, rset=rset,
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   409
                                             **optional_kwargs(selectargs))
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   410
    return self._call_view(viewobj, **optional_kwargs(renderargs))
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   412
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   413
@ajaxfunc(output_type='json')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   414
def i18n(self, msgids):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   415
    """returns the translation of `msgid`"""
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   416
    return [self._cw._(msgid) for msgid in msgids]
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   417
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
@ajaxfunc(output_type='json')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   419
def format_date(self, strdate):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
    """returns the formatted date for `msgid`"""
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   421
    date = strptime(strdate, '%Y-%m-%d %H:%M:%S')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
    return self._cw.format_date(date)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   424
@ajaxfunc(output_type='json')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   425
def external_resource(self, resource):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   426
    """returns the URL of the external resource named `resource`"""
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   427
    return self._cw.uiprops[resource]
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   428
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   429
@ajaxfunc(output_type='json', check_pageid=True)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
def user_callback(self, cbname):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
    """execute the previously registered user callback `cbname`.
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   432
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   433
    If matching callback is not found, return None
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   434
    """
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   435
    page_data = self._cw.session.data.get(self._cw.pageid, {})
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   436
    try:
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   437
        cb = page_data[cbname]
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   438
    except KeyError:
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   439
        self.warning('unable to find user callback %s', cbname)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   440
        return None
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   441
    return cb(self._cw)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   442
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   443
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   444
@ajaxfunc
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   445
def unregister_user_callback(self, cbname):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   446
    """unregister user callback `cbname`"""
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
    self._cw.unregister_callback(self._cw.pageid, cbname)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
@ajaxfunc
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
def unload_page_data(self):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   451
    """remove user's session data associated to current pageid"""
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   452
    self._cw.session.data.pop(self._cw.pageid, None)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   453
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   454
@ajaxfunc(output_type='json')
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   455
@deprecated("[3.13] use jQuery.cookie(cookiename, cookievalue, {path: '/'}) in js land instead")
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   456
def set_cookie(self, cookiename, cookievalue):
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   457
    """generates the Set-Cookie HTTP reponse header corresponding
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   458
    to `cookiename` / `cookievalue`.
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   459
    """
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   460
    cookiename, cookievalue = str(cookiename), str(cookievalue)
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
    self._cw.set_cookie(cookiename, cookievalue)