]> git.openstreetmap.org Git - osqa.git/blobdiff - forum/models/base.py
ALteration of the schema to a single content model. As a bonus there is a complete...
[osqa.git] / forum / models / base.py
old mode 100755 (executable)
new mode 100644 (file)
index 2c28a47..13eae22
-import datetime\r
-import hashlib\r
-from urllib import quote_plus, urlencode\r
-from django.db import models, IntegrityError, connection, transaction\r
-from django.utils.http import urlquote  as django_urlquote\r
-from django.utils.html import strip_tags\r
-from django.core.urlresolvers import reverse\r
-from django.contrib.auth.models import User\r
-from django.contrib.contenttypes import generic\r
-from django.contrib.contenttypes.models import ContentType\r
-from django.template.defaultfilters import slugify\r
-from django.db.models.signals import post_delete, post_save, pre_save\r
-from django.utils.translation import ugettext as _\r
-from django.utils.safestring import mark_safe\r
-from django.contrib.sitemaps import ping_google\r
-import django.dispatch\r
-from django.conf import settings\r
-import logging\r
-\r
-if settings.USE_SPHINX_SEARCH == True:\r
-    from djangosphinx.models import SphinxSearch\r
-\r
-from forum.const import *\r
-\r
-class MetaContent(models.Model):\r
-    """\r
-        Base class for Vote, Comment and FlaggedItem\r
-    """\r
-    content_type   = models.ForeignKey(ContentType)\r
-    object_id      = models.PositiveIntegerField()\r
-    content_object = generic.GenericForeignKey('content_type', 'object_id')\r
-    user           = models.ForeignKey(User, related_name='%(class)ss')\r
-\r
-    class Meta:\r
-        abstract = True\r
-        app_label = 'forum'\r
-\r
-\r
-class DeletableContent(models.Model):\r
-    deleted     = models.BooleanField(default=False)\r
-    deleted_at  = models.DateTimeField(null=True, blank=True)\r
-    deleted_by  = models.ForeignKey(User, null=True, blank=True, related_name='deleted_%(class)ss')\r
-\r
-    class Meta:\r
-        abstract = True\r
-        app_label = 'forum'\r
-\r
-\r
-class ContentRevision(models.Model):\r
-    """\r
-        Base class for QuestionRevision and AnswerRevision\r
-    """\r
-    revision   = models.PositiveIntegerField()\r
-    author     = models.ForeignKey(User, related_name='%(class)ss')\r
-    revised_at = models.DateTimeField()\r
-    summary    = models.CharField(max_length=300, blank=True)\r
-    text       = models.TextField()\r
-\r
-    class Meta:\r
-        abstract = True\r
-        app_label = 'forum'\r
-\r
-\r
-class AnonymousContent(models.Model):\r
-    """\r
-        Base class for AnonymousQuestion and AnonymousAnswer\r
-    """\r
-    session_key = models.CharField(max_length=40)  #session id for anonymous questions\r
-    wiki = models.BooleanField(default=False)\r
-    added_at = models.DateTimeField(default=datetime.datetime.now)\r
-    ip_addr = models.IPAddressField(max_length=21) #allow high port numbers\r
-    author = models.ForeignKey(User,null=True)\r
-    text = models.TextField()\r
-    summary = models.CharField(max_length=180)\r
-\r
-    class Meta:\r
-        abstract = True\r
-        app_label = 'forum'\r
-\r
-\r
-from meta import Comment, Vote, FlaggedItem\r
-\r
-class Content(models.Model):\r
-    """\r
-        Base class for Question and Answer\r
-    """\r
-    author               = models.ForeignKey(User, related_name='%(class)ss')\r
-    added_at             = models.DateTimeField(default=datetime.datetime.now)\r
-\r
-    wiki                 = models.BooleanField(default=False)\r
-    wikified_at          = models.DateTimeField(null=True, blank=True)\r
-\r
-    locked               = models.BooleanField(default=False)\r
-    locked_by            = models.ForeignKey(User, null=True, blank=True, related_name='locked_%(class)ss')\r
-    locked_at            = models.DateTimeField(null=True, blank=True)\r
-\r
-    score                = models.IntegerField(default=0)\r
-    vote_up_count        = models.IntegerField(default=0)\r
-    vote_down_count      = models.IntegerField(default=0)\r
-\r
-    comment_count        = models.PositiveIntegerField(default=0)\r
-    offensive_flag_count = models.SmallIntegerField(default=0)\r
-\r
-    last_edited_at       = models.DateTimeField(null=True, blank=True)\r
-    last_edited_by       = models.ForeignKey(User, null=True, blank=True, related_name='last_edited_%(class)ss')\r
-\r
-    html                 = models.TextField()\r
-    comments             = generic.GenericRelation(Comment)\r
-    votes                = generic.GenericRelation(Vote)\r
-    flagged_items        = generic.GenericRelation(FlaggedItem)\r
-\r
-    class Meta:\r
-        abstract = True\r
-        app_label = 'forum'\r
-\r
-    def save(self,**kwargs):\r
-        super(Content,self).save(**kwargs)\r
-        try:\r
-            ping_google()\r
-        except Exception:\r
-            logging.debug('problem pinging google did you register you sitemap with google?')\r
-\r
-    def get_object_comments(self):\r
-        comments = self.comments.all().order_by('id')\r
-        return comments\r
-\r
-    def post_get_last_update_info(self):\r
-            when = self.added_at\r
-            who = self.author\r
-            if self.last_edited_at and self.last_edited_at > when:\r
-                when = self.last_edited_at\r
-                who = self.last_edited_by\r
-            comments = self.comments.all()\r
-            if len(comments) > 0:\r
-                for c in comments:\r
-                    if c.added_at > when:\r
-                        when = c.added_at\r
-                        who = c.user\r
-            return when, who
\ No newline at end of file
+import datetime
+import hashlib
+from urllib import quote_plus, urlencode
+from django.db import models, IntegrityError, connection, transaction
+from django.utils.http import urlquote  as django_urlquote
+from django.utils.html import strip_tags
+from django.core.urlresolvers import reverse
+from django.contrib.contenttypes import generic
+from django.contrib.contenttypes.models import ContentType
+from django.core.cache import cache
+from django.template.defaultfilters import slugify
+from django.db.models.signals import post_delete, post_save, pre_save, pre_delete
+from django.utils.translation import ugettext as _
+from django.utils.safestring import mark_safe
+from django.contrib.sitemaps import ping_google
+import django.dispatch
+from django.conf import settings
+from forum import const
+import logging
+
+from forum.const import *
+
+class CachedManager(models.Manager):
+    use_for_related_fields = True
+
+    def get(self, *args, **kwargs):
+        try:
+            pk = [v for (k,v) in kwargs.items() if k in ('pk', 'pk__exact', 'id', 'id__exact') or k.endswith('_ptr__pk')][0]
+        except:
+            pk = None
+
+        if pk is not None:
+            key = self.model.cache_key(pk)
+            obj = cache.get(key)
+
+            if obj is None:
+                obj = super(CachedManager, self).get(*args, **kwargs)
+                cache.set(key, obj, 60 * 60)
+
+            return obj
+        
+        return super(CachedManager, self).get(*args, **kwargs)
+
+    def get_or_create(self, *args, **kwargs):
+        try:
+            return self.get(*args, **kwargs)
+        except:
+            return super(CachedManager, self).get_or_create(*args, **kwargs)
+
+
+class BaseModel(models.Model):
+    objects = CachedManager()
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+    def __init__(self, *args, **kwargs):
+        super(BaseModel, self).__init__(*args, **kwargs)
+        self._original_state = dict([(k, v) for k,v in self.__dict__.items() if not k in kwargs])
+
+    @classmethod
+    def cache_key(cls, pk):
+        return '%s.%s:%s' % (settings.APP_URL, cls.__name__, pk)
+
+    def get_dirty_fields(self):
+        missing = object()
+        return dict([(k, self._original_state.get(k, None)) for k,v in self.__dict__.items()
+                 if self._original_state.get(k, missing) == missing or self._original_state[k] != v])
+
+    def save(self, *args, **kwargs):
+        super(BaseModel, self).save(*args, **kwargs)
+        self._original_state = dict(self.__dict__)
+        cache.set(self.cache_key(self.pk), self, 86400)
+
+    def delete(self):
+        cache.delete(self.cache_key(self.pk))
+        super(BaseModel, self).delete()
+
+
+class ActiveObjectManager(models.Manager):
+    def get_query_set(self):
+        return super(ActiveObjectManager, self).get_query_set().filter(canceled=False)
+
+class UndeletedObjectManager(models.Manager):
+    def get_query_set(self):
+        return super(UndeletedObjectManager, self).get_query_set().filter(deleted=False)
+
+class GenericContent(BaseModel):
+    """
+        Base class for Vote, Comment and FlaggedItem
+    """
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+class MetaContent(BaseModel):
+    node = models.ForeignKey('Node', null=True, related_name='%(class)ss')
+
+    def __init__(self, *args, **kwargs):
+        if 'content_object' in kwargs:
+            kwargs['node'] = kwargs['content_object']
+            del kwargs['content_object']
+
+        super (MetaContent, self).__init__(*args, **kwargs)
+    
+    @property
+    def content_object(self):
+        return self.node.leaf
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+from user import User
+
+class UserContent(models.Model):
+    user = models.ForeignKey(User, related_name='%(class)ss')
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+
+marked_deleted = django.dispatch.Signal(providing_args=["instance", "deleted_by"])
+
+class DeletableContent(models.Model):
+    deleted     = models.BooleanField(default=False)
+    deleted_at  = models.DateTimeField(null=True, blank=True)
+    deleted_by  = models.ForeignKey(User, null=True, blank=True, related_name='deleted_%(class)ss')
+
+    active = UndeletedObjectManager()
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+    def mark_deleted(self, user):
+        if not self.deleted:
+            self.deleted = True
+            self.deleted_at = datetime.datetime.now()
+            self.deleted_by = user
+            self.save()
+            marked_deleted.send(sender=self.__class__, instance=self, deleted_by=user)
+            return True
+        else:
+            return False
+
+    def unmark_deleted(self):
+        if self.deleted:
+            self.deleted = False
+            self.save()
+            return True
+        else:
+            return False
+
+
+from meta import Comment, Vote, FlaggedItem
+from node import Node, NodeRevision
+
+class QandA(Node):
+    wiki                 = models.BooleanField(default=False)
+    wikified_at          = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        abstract = True
+        app_label = 'forum'
+
+    def wikify(self):
+        if not self.wiki:
+            self.wiki = True
+            self.wikified_at = datetime.datetime.now()
+            self.save()
+
+    def save(self, *args, **kwargs):
+        self.__dict__['score'] = self.__dict__['vote_up_count'] - self.__dict__['vote_down_count']
+        super(QandA,self).save(*args, **kwargs)
+
+        try:
+            ping_google()
+        except Exception:
+            logging.debug('problem pinging google did you register you sitemap with google?')
+
+
+