OSQA-497, adding a new settings that allows to specify whether the permissions to...

[osqa.git] / forum / models / node.py

diff --git a/forum/models/node.py b/forum/models/node.py
index 553b6c26188f9f36b173dc4b5cfb6a8db5e59407..6d51793517b4db408c835145a31ce53028962b97 100644 (file)
--- a/forum/models/node.py
+++ b/forum/models/node.py
@@ -7,6 +7,7 @@ from django.utils.translation import ugettext as _
 from django.utils.safestring import mark_safe
 from django.utils.html import strip_tags
 from forum.utils.html import sanitize_html
+from forum.utils.userlinking import auto_user_link
 from forum.settings import SUMMARY_LENGTH
 from utils import PickledObjectField
 
@@ -24,8 +25,11 @@ class NodeContent(models.Model):
     def html(self):
         return self.body
 
+    def rendered(self, content):
+        return auto_user_link(self, self._as_markdown(content, *['auto_linker']))
+
     @classmethod
-    def _as_markdown(cls, content, *extensions):
+    def _as_markdown_raw(cls, content, *extensions):
         try:
             return mark_safe(sanitize_html(markdown.markdown(content, extensions=extensions)))
         except Exception, e:
@@ -34,17 +38,26 @@ class NodeContent(models.Model):
                 str(e), cls.__name__, str(e), traceback.format_exc()))
             return ''
 
+    # Replace \ with \\ to preserve backslashes during markdown processing
+    @classmethod
+    def _as_markdown(cls, content, *extensions):
+       return cls._as_markdown_raw(content.replace('\\','\\\\'), *extensions)
+
     def as_markdown(self, *extensions):
         return self._as_markdown(self.body, *extensions)
 
     @property
     def headline(self):
-        return self.title
+        title = self.title
+
+        # Replaces multiple spaces with single ones.
+        title = re.sub(' +',' ', title)
+
+        return title
 
     def tagname_list(self):
         if self.tagnames:
-            t = [name.strip() for name in self.tagnames.split(u' ') if name]
-            return [name.strip() for name in self.tagnames.split(u' ') if name]
+            return [name.strip() for name in self.tagnames.split() if name]
         else:
             return []
 
@@ -306,7 +319,15 @@ class Node(BaseModel, NodeContent):
 
     @property
     def summary(self):
-        return strip_tags(self.html)[:SUMMARY_LENGTH]
+        content = strip_tags(self.html)[:SUMMARY_LENGTH]
+
+        # Remove multiple spaces.
+        content = re.sub(' +',' ', content)
+
+        # Remove line breaks. We don't need them at all.
+        content = content.replace("\n", '')
+
+        return content
 
     @models.permalink
     def get_revisions_url(self):
@@ -333,22 +354,59 @@ class Node(BaseModel, NodeContent):
     def create_revision(self, user, **kwargs):
         number = self.revisions.aggregate(last=models.Max('revision'))['last'] + 1
         revision = self._create_revision(user, number, **kwargs)
-        self.activate_revision(user, revision, extensions=['urlize'])
+        self.activate_revision(user, revision)
         return revision
 
-    def activate_revision(self, user, revision, extensions=['urlize']):
+    def activate_revision(self, user, revision):
         self.title = revision.title
         self.tagnames = revision.tagnames
-        
-        from forum.utils.userlinking import auto_user_link
-        
-        self.body = auto_user_link(self, self._as_markdown(revision.body, *extensions))
+
+        self.body = self.rendered(revision.body)
 
         self.active_revision = revision
-        self.update_last_activity(user)
+
+        # Try getting the previous revision
+        try:
+            prev_revision = NodeRevision.objects.get(node=self, revision=revision.revision-1)
+
+            update_activity = True
+
+            # Do not update the activity if only the tags are changed
+            if prev_revision.title == revision.title and prev_revision.body == revision.body \
+            and prev_revision.tagnames != revision.tagnames and not settings.UPDATE_LATEST_ACTIVITY_ON_TAG_EDIT:
+                update_activity = False
+        except NodeRevision.DoesNotExist:
+            update_activity = True
+        finally:
+            if update_activity:
+                self.update_last_activity(user)
 
         self.save()
 
+    def get_active_users(self, active_users = None):
+        if not active_users:
+            active_users = set()
+
+        active_users.add(self.author)
+
+        for node in self.children.all():
+            if not node.nis.deleted:
+                node.get_active_users(active_users)
+
+        return active_users
+
+    def get_last_edited(self):
+        if not self.last_edited:
+            try:
+                le = self.actions.exclude(action_type__in=('voteup', 'votedown', 'flag'), canceled=True).order_by('-action_date')[0]
+                self.last_edited = le
+                self.save()
+            except:
+                pass
+
+        return self.last_edited
+
+
     def _list_changes_in_tags(self):
         dirty = self.get_dirty_fields()
 
@@ -356,10 +414,10 @@ class Node(BaseModel, NodeContent):
             return None
         else:
             if self._original_state['tagnames']:
-                old_tags = set(name for name in self._original_state['tagnames'].split(u' '))
+                old_tags = set(self._original_state['tagnames'].split())
             else:
                 old_tags = set()
-            new_tags = set(name for name in self.tagnames.split(u' ') if name)
+            new_tags = set(self.tagnames.split())
 
             return dict(
                     current=list(new_tags),
@@ -377,7 +435,7 @@ class Node(BaseModel, NodeContent):
             for name in tag_changes['added']:
                 try:
                     tag = Tag.objects.get(name=name)
-                except:
+                except Tag.DoesNotExist:
                     tag = Tag.objects.create(name=name, created_by=self._last_active_user())
 
                 if not self.nis.deleted:
@@ -411,6 +469,10 @@ class Node(BaseModel, NodeContent):
                 tag.save()
 
     def delete(self, *args, **kwargs):
+        for tag in self.tags.all():
+            tag.add_to_usage_count(-1)
+            tag.save()
+
         self.active_revision = None
         self.save()
 
@@ -437,8 +499,11 @@ class Node(BaseModel, NodeContent):
         tags_changed = self._process_changes_in_tags()
         
         super(Node, self).save(*args, **kwargs)
-        
-        if tags_changed: self.tags = list(Tag.objects.filter(name__in=self.tagname_list()))
+        if tags_changed:
+            if self.tagnames.strip():
+                self.tags = list(Tag.objects.filter(name__in=self.tagname_list()))
+            else:
+                self.tags = []
 
     class Meta:
         app_label = 'forum'