web/views/startup.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Fri, 23 Apr 2010 13:25:31 +0200
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"""Set of HTML startup views. A startup view is global, e.g. doesn't
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apply to a result set.
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:organization: Logilab
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.common.textutils import unormalize
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from logilab.mtconverter import xml_escape
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from cubicweb.view import StartupView
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from cubicweb.selectors import match_user_groups, implements
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from cubicweb.schema import display_name
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from cubicweb.web import ajax_replace_url, uicfg, httpcache
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class ManageView(StartupView):
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    __regid__ = 'manage'
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    title = _('manage')
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    http_cache_manager = httpcache.EtagHTTPCacheManager
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    add_etype_links = ()
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    def display_folders(self):
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        return False
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    def call(self, **kwargs):
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        """The default view representing the instance's management"""
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        self._cw.add_css('cubicweb.manageview.css')
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        self.w(u'<div>\n')
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        if not self.display_folders():
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            self._main_index()
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        else:
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            self.w(u'<table><tr>\n')
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            self.w(u'<td style="width:40%">')
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            self._main_index()
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            self.w(u'</td><td style="width:60%">')
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            self.folders()
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            self.w(u'</td>')
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            self.w(u'</tr></table>\n')
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        self.w(u'</div>\n')
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    def _main_index(self):
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        req = self._cw
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        manager = req.user.matching_groups('managers')
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        if not manager and 'Card' in self._cw.vreg.schema:
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            rset = self._cw.execute('Card X WHERE X wikiid "index"')
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        else:
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            rset = None
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        if rset:
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            self.wview('inlined', rset, row=0)
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        else:
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            self.entities()
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            self.w(u'<div class="hr">&#160;</div>')
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            self.startup_views()
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        if manager and 'Card' in self._cw.vreg.schema:
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            self.w(u'<div class="hr">&#160;</div>')
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            if rset:
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                href = rset.get_entity(0, 0).absolute_url(vid='edition')
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                label = self._cw._('edit the index page')
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            else:
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                href = req.build_url('view', vid='creation', etype='Card', wikiid='index')
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                label = self._cw._('create an index page')
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            self.w(u'<br/><a href="%s">%s</a>\n' % (xml_escape(href), label))
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    def folders(self):
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        self.w(u'<h4>%s</h4>\n' % self._cw._('Browse by category'))
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        self._cw.vreg['views'].select('tree', self._cw).render(w=self.w)
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    def create_links(self):
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        self.w(u'<ul class="createLink">')
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        for etype in self.add_etype_links:
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            eschema = self.schema.eschema(etype)
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            if eschema.has_perm(self._cw, 'add'):
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                self.w(u'<li><a href="%s">%s</a></li>' % (
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                        self._cw.build_url('add/%s' % eschema),
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                        self._cw.__('add a %s' % eschema).capitalize()))
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        self.w(u'</ul>')
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    def startup_views(self):
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        self.w(u'<h4>%s</h4>\n' % self._cw._('Startup views'))
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        self.startupviews_table()
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    def startupviews_table(self):
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        for v in self._cw.vreg['views'].possible_views(self._cw, None):
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            if v.category != 'startupview' or v.__regid__ in ('index', 'tree', 'manage'):
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                continue
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            self.w('<p><a href="%s">%s</a></p>' % (
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                xml_escape(v.url()), xml_escape(self._cw._(v.title).capitalize())))
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    def entities(self):
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        schema = self._cw.vreg.schema
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        self.w(u'<h4>%s</h4>\n' % self._cw._('The repository holds the following entities'))
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        manager = self._cw.user.matching_groups('managers')
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        self.w(u'<table class="startup">')
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        if manager:
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            self.w(u'<tr><th colspan="4">%s</th></tr>\n' % self._cw._('application entities'))
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        self.entity_types_table(eschema for eschema in schema.entities()
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                                if uicfg.indexview_etype_section.get(eschema) == 'application')
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        if manager:
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            self.w(u'<tr><th colspan="4">%s</th></tr>\n' % self._cw._('system entities'))
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            self.entity_types_table(eschema for eschema in schema.entities()
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                                if uicfg.indexview_etype_section.get(eschema) == 'system')
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            if 'CWAttribute' in schema: # check schema support
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                self.w(u'<tr><th colspan="4">%s</th></tr>\n' % self._cw._('schema entities'))
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                self.entity_types_table(eschema for eschema in schema.entities()
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                                        if uicfg.indexview_etype_section.get(eschema) == 'schema')
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        self.w(u'</table>')
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    def entity_types_table(self, eschemas):
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        newline = 0
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        infos = sorted(self.entity_types(eschemas),
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                       key=lambda (l,a,e):unormalize(l))
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        q, r = divmod(len(infos), 2)
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        if r:
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            infos.append( (None, '&#160;', '&#160;') )
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        infos = zip(infos[:q+r], infos[q+r:])
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        for (_, etypelink, addlink), (_, etypelink2, addlink2) in infos:
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            self.w(u'<tr>\n')
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            self.w(u'<td class="addcol">%s</td><td>%s</td>\n' % (addlink,  etypelink))
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            self.w(u'<td class="addcol">%s</td><td>%s</td>\n' % (addlink2, etypelink2))
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            self.w(u'</tr>\n')
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0
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    def entity_types(self, eschemas):
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        """return a list of formatted links to get a list of entities of
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        a each entity's types
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        """
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        req = self._cw
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        for eschema in eschemas:
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            if eschema.final or not eschema.may_have_permission('read', req):
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                continue
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            etype = eschema.type
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            nb = req.execute('Any COUNT(X) WHERE X is %s' % etype)[0][0]
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            if nb > 1:
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                label = display_name(req, etype, 'plural')
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            else:
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                label = display_name(req, etype)
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            nb = req.execute('Any COUNT(X) WHERE X is %s' % etype)[0][0]
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            url = self._cw.build_url(etype)
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            etypelink = u'&#160;<a href="%s">%s</a> (%d)' % (
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                xml_escape(url), label, nb)
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            yield (label, etypelink, self.add_entity_link(eschema, req))
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    def add_entity_link(self, eschema, req):
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        """creates a [+] link for adding an entity if user has permission to do so"""
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        if not eschema.has_perm(req, 'add'):
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            return u''
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        return u'[<a href="%s" title="%s">+</a>]' % (
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            xml_escape(self.create_url(eschema.type)),
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            self._cw.__('add a %s' % eschema))
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class IndexView(ManageView):
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    __regid__ = 'index'
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    title = _('view_index')
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    def display_folders(self):
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        return 'Folder' in self._cw.vreg.schema and self._cw.execute('Any COUNT(X) WHERE X is Folder')[0][0]
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