author | Aurelien Campeas <aurelien.campeas@logilab.fr> |
Tue, 08 Oct 2013 14:02:28 +0200 | |
changeset 9284 | 4c37808fd284 |
parent 9006 | e4ea8f9ffa11 |
child 9305 | f7a738afc295 |
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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proper licensing information (LGPL-2.1). Hope I get it right this time.
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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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"""some views to handle notification on data changes""" |
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__docformat__ = "restructuredtext en" |
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update transaction data api
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_ = unicode |
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from itertools import repeat |
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from logilab.common.textutils import normalize_text |
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from logilab.common.deprecation import class_renamed, class_moved, deprecated |
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[vreg] move base registry implementation to logilab.common. Closes #1916014
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from logilab.common.registry import yes |
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from cubicweb.entity import Entity |
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from cubicweb.view import Component, EntityView |
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from cubicweb.server.hook import SendMailOp |
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from cubicweb.mail import construct_message_id, format_mail |
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from cubicweb.server.session import Session |
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class RecipientsFinder(Component): |
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"""this component is responsible to find recipients of a notification |
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by default user's with their email set are notified if any, else the default |
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email addresses specified in the configuration are used |
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""" |
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__regid__ = 'recipients_finder' |
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__select__ = yes() |
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user_rql = ('Any X,E,A WHERE X is CWUser, X in_state S, S name "activated",' |
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'X primary_email E, E address A') |
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def recipients(self): |
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mode = self._cw.vreg.config['default-recipients-mode'] |
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if mode == 'users': |
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execute = self._cw.execute |
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dests = [(u.cw_adapt_to('IEmailable').get_email(), |
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u.property_value('ui.language')) |
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for u in execute(self.user_rql, build_descr=True).entities()] |
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elif mode == 'default-dest-addrs': |
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lang = self._cw.vreg.property_value('ui.language') |
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dests = zip(self._cw.vreg.config['default-dest-addrs'], repeat(lang)) |
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else: # mode == 'none' |
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dests = [] |
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return dests |
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# abstract or deactivated notification views and mixin ######################## |
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class SkipEmail(Exception): |
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"""raise this if you decide to skip an email during its generation""" |
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class NotificationView(EntityView): |
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"""abstract view implementing the "email" API (eg to simplify sending |
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notification) |
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""" |
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# XXX refactor this class to work with len(rset) > 1 |
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msgid_timestamp = True |
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# to be defined on concrete sub-classes |
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content = None # body of the mail |
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message = None # action verb of the subject |
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# this is usually the method to call |
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def render_and_send(self, **kwargs): |
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"""generate and send an email message for this view""" |
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delayed = kwargs.pop('delay_to_commit', None) |
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for recipients, msg in self.render_emails(**kwargs): |
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if delayed is None: |
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self.send(recipients, msg) |
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elif delayed: |
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self.send_on_commit(recipients, msg) |
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else: |
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self.send_now(recipients, msg) |
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def cell_call(self, row, col=0, **kwargs): |
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self.w(self._cw._(self.content) % self.context(**kwargs)) |
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def render_emails(self, **kwargs): |
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"""generate and send emails for this view (one per recipient)""" |
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self._kwargs = kwargs |
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recipients = self.recipients() |
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if not recipients: |
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self.info('skipping %s notification, no recipients', self.__regid__) |
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return |
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if self.cw_rset is not None: |
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entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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# if the view is using timestamp in message ids, no way to reference |
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# previous email |
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if not self.msgid_timestamp: |
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refs = [self.construct_message_id(eid) |
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for eid in entity.cw_adapt_to('INotifiable').notification_references(self)] |
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else: |
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refs = () |
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msgid = self.construct_message_id(entity.eid) |
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else: |
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refs = () |
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msgid = None |
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116 |
req = self._cw |
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117 |
self.user_data = req.user_data() |
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118 |
origlang = req.lang |
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119 |
for something in recipients: |
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120 |
if isinstance(something, Entity): |
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121 |
# hi-jack self._cw to get a session for the returned user |
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122 |
self._cw = Session(something, self._cw.repo) |
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123 |
self._cw.set_cnxset() |
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124 |
emailaddr = something.cw_adapt_to('IEmailable').get_email() |
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125 |
else: |
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126 |
emailaddr, lang = something |
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127 |
self._cw.set_language(lang) |
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128 |
# since the same view (eg self) may be called multiple time and we |
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129 |
# need a fresh stream at each iteration, reset it explicitly |
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130 |
self.w = None |
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131 |
# XXX call render before subject to set .row/.col attributes on the |
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132 |
# view |
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133 |
try: |
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134 |
content = self.render(row=0, col=0, **kwargs) |
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135 |
subject = self.subject() |
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136 |
except SkipEmail: |
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137 |
continue |
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138 |
except Exception as ex: |
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139 |
# shouldn't make the whole transaction fail because of rendering |
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140 |
# error (unauthorized or such) XXX check it doesn't actually |
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141 |
# occurs due to rollback on such error |
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142 |
self.exception(str(ex)) |
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143 |
continue |
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144 |
msg = format_mail(self.user_data, [emailaddr], content, subject, |
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145 |
config=self._cw.vreg.config, msgid=msgid, references=refs) |
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146 |
yield [emailaddr], msg |
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147 |
if isinstance(something, Entity): |
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148 |
self._cw.commit() |
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149 |
self._cw.close() |
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150 |
self._cw = req |
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151 |
# restore language |
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152 |
req.set_language(origlang) |
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153 |
|
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154 |
# recipients / email sending ############################################### |
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155 |
|
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156 |
def recipients(self): |
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157 |
"""return a list of either 2-uple (email, language) or user entity to |
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158 |
who this email should be sent |
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159 |
""" |
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160 |
finder = self._cw.vreg['components'].select( |
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161 |
'recipients_finder', self._cw, rset=self.cw_rset, |
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162 |
row=self.cw_row or 0, col=self.cw_col or 0) |
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163 |
return finder.recipients() |
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164 |
|
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165 |
def send_now(self, recipients, msg): |
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166 |
self._cw.vreg.config.sendmails([(msg, recipients)]) |
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167 |
|
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168 |
def send_on_commit(self, recipients, msg): |
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169 |
SendMailOp(self._cw, recipients=recipients, msg=msg) |
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170 |
send = send_on_commit |
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171 |
|
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172 |
# email generation helpers ################################################# |
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173 |
|
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174 |
def construct_message_id(self, eid): |
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175 |
return construct_message_id(self._cw.vreg.config.appid, eid, |
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176 |
self.msgid_timestamp) |
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177 |
|
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178 |
def format_field(self, attr, value): |
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179 |
return ':%(attr)s: %(value)s' % {'attr': attr, 'value': value} |
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180 |
|
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181 |
def format_section(self, attr, value): |
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182 |
return '%(attr)s\n%(ul)s\n%(value)s\n' % { |
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183 |
'attr': attr, 'ul': '-'*len(attr), 'value': value} |
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184 |
|
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185 |
def subject(self): |
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186 |
entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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187 |
subject = self._cw._(self.message) |
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188 |
etype = entity.dc_type() |
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189 |
eid = entity.eid |
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190 |
login = self.user_data['login'] |
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191 |
return self._cw._('%(subject)s %(etype)s #%(eid)s (%(login)s)') % locals() |
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192 |
|
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193 |
def context(self, **kwargs): |
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194 |
entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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195 |
for key, val in kwargs.iteritems(): |
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196 |
if val and isinstance(val, unicode) and val.strip(): |
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197 |
kwargs[key] = self._cw._(val) |
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198 |
kwargs.update({'user': self.user_data['login'], |
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199 |
'eid': entity.eid, |
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200 |
'etype': entity.dc_type(), |
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201 |
'url': entity.absolute_url(), |
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202 |
'title': entity.dc_long_title(),}) |
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203 |
return kwargs |
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204 |
|
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205 |
|
0 | 206 |
class StatusChangeMixIn(object): |
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207 |
__regid__ = 'notif_status_change' |
0 | 208 |
msgid_timestamp = True |
209 |
message = _('status changed') |
|
210 |
content = _(""" |
|
211 |
%(user)s changed status from <%(previous_state)s> to <%(current_state)s> for entity |
|
212 |
'%(title)s' |
|
213 |
||
214 |
%(comment)s |
|
215 |
||
216 |
url: %(url)s |
|
217 |
""") |
|
218 |
||
219 |
||
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220 |
############################################################################### |
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221 |
# Actual notification views. # |
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222 |
# # |
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223 |
# disable them at the recipients_finder level if you don't want them # |
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224 |
############################################################################### |
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225 |
|
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226 |
# XXX should be based on dc_title/dc_description, no? |
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227 |
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class ContentAddedView(NotificationView): |
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"""abstract class for notification on entity/relation |
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230 |
|
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231 |
all you have to do by default is : |
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232 |
* set id and __select__ attributes to match desired events and entity types |
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233 |
* set a content attribute to define the content of the email (unless you |
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234 |
override call) |
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235 |
""" |
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__abstract__ = True |
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__regid__ = 'notif_after_add_entity' |
0 | 238 |
msgid_timestamp = False |
239 |
message = _('new') |
|
240 |
content = """ |
|
241 |
%(title)s |
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242 |
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243 |
%(content)s |
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244 |
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245 |
url: %(url)s |
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""" |
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# to be defined on concrete sub-classes |
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content_attr = None |
0 | 249 |
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def context(self, **kwargs): |
|
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entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
0 | 252 |
content = entity.printable_value(self.content_attr, format='text/plain') |
253 |
if content: |
|
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contentformat = getattr(entity, self.content_attr + '_format', |
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255 |
'text/rest') |
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256 |
# XXX don't try to wrap rest until we've a proper transformation (see |
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257 |
# #103822) |
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258 |
if contentformat != 'text/rest': |
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259 |
content = normalize_text(content, 80) |
761 | 260 |
return super(ContentAddedView, self).context(content=content, **kwargs) |
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|
0 | 262 |
def subject(self): |
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entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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return u'%s #%s (%s)' % (self._cw.__('New %s' % entity.e_schema), |
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entity.eid, self.user_data['login']) |
0 | 266 |
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267 |
|
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268 |
def format_value(value): |
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269 |
if isinstance(value, unicode): |
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return u'"%s"' % value |
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271 |
return value |
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272 |
|
3536 | 273 |
|
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274 |
class EntityUpdatedNotificationView(NotificationView): |
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275 |
"""abstract class for notification on entity/relation |
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276 |
|
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277 |
all you have to do by default is : |
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278 |
* set id and __select__ attributes to match desired events and entity types |
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279 |
* set a content attribute to define the content of the email (unless you |
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280 |
override call) |
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281 |
""" |
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282 |
__abstract__ = True |
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283 |
__regid__ = 'notif_entity_updated' |
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284 |
msgid_timestamp = False |
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285 |
message = _('updated') |
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286 |
no_detailed_change_attrs = () |
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287 |
content = """ |
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288 |
Properties have been updated by %(user)s: |
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289 |
|
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290 |
%(changes)s |
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291 |
|
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292 |
url: %(url)s |
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293 |
""" |
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294 |
|
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295 |
def context(self, changes=(), **kwargs): |
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296 |
context = super(EntityUpdatedNotificationView, self).context(**kwargs) |
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297 |
_ = self._cw._ |
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298 |
formatted_changes = [] |
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299 |
entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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300 |
for attr, oldvalue, newvalue in sorted(changes): |
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301 |
# check current user has permission to see the attribute |
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302 |
rschema = self._cw.vreg.schema[attr] |
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303 |
if rschema.final: |
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304 |
rdef = entity.e_schema.rdef(rschema) |
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305 |
if not rdef.has_perm(self._cw, 'read', eid=self.cw_rset[0][0]): |
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306 |
continue |
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307 |
# XXX suppose it's a subject relation... |
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308 |
elif not rschema.has_perm(self._cw, 'read', |
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309 |
fromeid=self.cw_rset[0][0]): |
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310 |
continue |
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311 |
if attr in self.no_detailed_change_attrs: |
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312 |
msg = _('%s updated') % _(attr) |
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313 |
elif oldvalue not in (None, ''): |
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314 |
msg = _('%(attr)s updated from %(oldvalue)s to %(newvalue)s') % { |
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315 |
'attr': _(attr), |
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316 |
'oldvalue': format_value(oldvalue), |
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317 |
'newvalue': format_value(newvalue)} |
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318 |
else: |
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319 |
msg = _('%(attr)s set to %(newvalue)s') % { |
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320 |
'attr': _(attr), 'newvalue': format_value(newvalue)} |
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321 |
formatted_changes.append('* ' + msg) |
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322 |
if not formatted_changes: |
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323 |
# current user isn't allowed to see changes, skip this notification |
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324 |
raise SkipEmail() |
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325 |
context['changes'] = '\n'.join(formatted_changes) |
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326 |
return context |
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327 |
|
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328 |
def subject(self): |
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329 |
entity = self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0) |
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330 |
return u'%s #%s (%s)' % (self._cw.__('Updated %s' % entity.e_schema), |
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331 |
entity.eid, self.user_data['login']) |