author | Sverre Rabbelier <srabbelier@gmail.com> |
Mon, 09 Mar 2009 19:37:56 +0000 | |
changeset 1778 | 660502cad63a |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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import datetime |
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from django.contrib.auth.models import User |
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from django.contrib.comments.managers import CommentManager |
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from django.contrib.contenttypes import generic |
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from django.contrib.contenttypes.models import ContentType |
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from django.contrib.sites.models import Site |
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from django.db import models |
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from django.core import urlresolvers |
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from django.utils.translation import ugettext_lazy as _ |
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from django.conf import settings |
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COMMENT_MAX_LENGTH = getattr(settings,'COMMENT_MAX_LENGTH',3000) |
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class BaseCommentAbstractModel(models.Model): |
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""" |
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An abstract base class that any custom comment models probably should |
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subclass. |
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""" |
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# Content-object field |
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content_type = models.ForeignKey(ContentType, |
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related_name="content_type_set_for_%(class)s") |
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object_pk = models.TextField(_('object ID')) |
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content_object = generic.GenericForeignKey(ct_field="content_type", fk_field="object_pk") |
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# Metadata about the comment |
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site = models.ForeignKey(Site) |
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class Meta: |
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abstract = True |
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def get_content_object_url(self): |
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""" |
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Get a URL suitable for redirecting to the content object. |
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""" |
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return urlresolvers.reverse( |
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"comments-url-redirect", |
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args=(self.content_type_id, self.object_pk) |
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) |
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class Comment(BaseCommentAbstractModel): |
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""" |
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A user comment about some object. |
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""" |
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# Who posted this comment? If ``user`` is set then it was an authenticated |
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# user; otherwise at least user_name should have been set and the comment |
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# was posted by a non-authenticated user. |
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user = models.ForeignKey(User, blank=True, null=True, related_name="%(class)s_comments") |
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user_name = models.CharField(_("user's name"), max_length=50, blank=True) |
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user_email = models.EmailField(_("user's email address"), blank=True) |
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user_url = models.URLField(_("user's URL"), blank=True) |
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comment = models.TextField(_('comment'), max_length=COMMENT_MAX_LENGTH) |
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# Metadata about the comment |
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submit_date = models.DateTimeField(_('date/time submitted'), default=None) |
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ip_address = models.IPAddressField(_('IP address'), blank=True, null=True) |
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is_public = models.BooleanField(_('is public'), default=True, |
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help_text=_('Uncheck this box to make the comment effectively ' \ |
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'disappear from the site.')) |
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is_removed = models.BooleanField(_('is removed'), default=False, |
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help_text=_('Check this box if the comment is inappropriate. ' \ |
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'A "This comment has been removed" message will ' \ |
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'be displayed instead.')) |
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# Manager |
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objects = CommentManager() |
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class Meta: |
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db_table = "django_comments" |
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ordering = ('submit_date',) |
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permissions = [("can_moderate", "Can moderate comments")] |
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def __unicode__(self): |
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return "%s: %s..." % (self.name, self.comment[:50]) |
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def save(self, force_insert=False, force_update=False): |
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if self.submit_date is None: |
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self.submit_date = datetime.datetime.now() |
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super(Comment, self).save(force_insert, force_update) |
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def _get_userinfo(self): |
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""" |
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Get a dictionary that pulls together information about the poster |
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safely for both authenticated and non-authenticated comments. |
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This dict will have ``name``, ``email``, and ``url`` fields. |
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""" |
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if not hasattr(self, "_userinfo"): |
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self._userinfo = { |
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"name" : self.user_name, |
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"email" : self.user_email, |
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"url" : self.user_url |
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} |
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if self.user_id: |
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u = self.user |
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if u.email: |
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self._userinfo["email"] = u.email |
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# If the user has a full name, use that for the user name. |
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# However, a given user_name overrides the raw user.username, |
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# so only use that if this comment has no associated name. |
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if u.get_full_name(): |
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105 |
self._userinfo["name"] = self.user.get_full_name() |
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106 |
elif not self.user_name: |
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107 |
self._userinfo["name"] = u.username |
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108 |
return self._userinfo |
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109 |
userinfo = property(_get_userinfo, doc=_get_userinfo.__doc__) |
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110 |
|
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111 |
def _get_name(self): |
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112 |
return self.userinfo["name"] |
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113 |
def _set_name(self, val): |
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114 |
if self.user_id: |
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115 |
raise AttributeError(_("This comment was posted by an authenticated "\ |
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116 |
"user and thus the name is read-only.")) |
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117 |
self.user_name = val |
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name = property(_get_name, _set_name, doc="The name of the user who posted this comment") |
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119 |
|
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120 |
def _get_email(self): |
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121 |
return self.userinfo["email"] |
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122 |
def _set_email(self, val): |
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123 |
if self.user_id: |
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124 |
raise AttributeError(_("This comment was posted by an authenticated "\ |
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125 |
"user and thus the email is read-only.")) |
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126 |
self.user_email = val |
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email = property(_get_email, _set_email, doc="The email of the user who posted this comment") |
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128 |
|
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129 |
def _get_url(self): |
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130 |
return self.userinfo["url"] |
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131 |
def _set_url(self, val): |
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132 |
self.user_url = val |
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133 |
url = property(_get_url, _set_url, doc="The URL given by the user who posted this comment") |
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134 |
|
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135 |
def get_absolute_url(self, anchor_pattern="#c%(id)s"): |
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136 |
return self.get_content_object_url() + (anchor_pattern % self.__dict__) |
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137 |
|
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138 |
def get_as_text(self): |
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139 |
""" |
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140 |
Return this comment as plain text. Useful for emails. |
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141 |
""" |
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142 |
d = { |
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143 |
'user': self.user, |
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144 |
'date': self.submit_date, |
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145 |
'comment': self.comment, |
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146 |
'domain': self.site.domain, |
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'url': self.get_absolute_url() |
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148 |
} |
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149 |
return _('Posted by %(user)s at %(date)s\n\n%(comment)s\n\nhttp://%(domain)s%(url)s') % d |
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150 |
|
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151 |
class CommentFlag(models.Model): |
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152 |
""" |
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153 |
Records a flag on a comment. This is intentionally flexible; right now, a |
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154 |
flag could be: |
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155 |
|
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156 |
* A "removal suggestion" -- where a user suggests a comment for (potential) removal. |
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|
157 |
|
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158 |
* A "moderator deletion" -- used when a moderator deletes a comment. |
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|
159 |
|
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160 |
You can (ab)use this model to add other flags, if needed. However, by |
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161 |
design users are only allowed to flag a comment with a given flag once; |
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|
162 |
if you want rating look elsewhere. |
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|
163 |
""" |
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164 |
user = models.ForeignKey(User, related_name="comment_flags") |
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165 |
comment = models.ForeignKey(Comment, related_name="flags") |
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|
166 |
flag = models.CharField(max_length=30, db_index=True) |
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167 |
flag_date = models.DateTimeField(default=None) |
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|
168 |
|
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|
169 |
# Constants for flag types |
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170 |
SUGGEST_REMOVAL = "removal suggestion" |
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171 |
MODERATOR_DELETION = "moderator deletion" |
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|
172 |
MODERATOR_APPROVAL = "moderator approval" |
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173 |
|
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|
174 |
class Meta: |
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|
175 |
db_table = 'django_comment_flags' |
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|
176 |
unique_together = [('user', 'comment', 'flag')] |
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177 |
|
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178 |
def __unicode__(self): |
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179 |
return "%s flag of comment ID %s by %s" % \ |
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|
180 |
(self.flag, self.comment_id, self.user.username) |
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181 |
|
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|
182 |
def save(self, force_insert=False, force_update=False): |
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183 |
if self.flag_date is None: |
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|
184 |
self.flag_date = datetime.datetime.now() |
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|
185 |
super(CommentFlag, self).save(force_insert, force_update) |