Added backwards compatibility for md5_constructor and truncate_html_words

Author: pirave

askbot/models/post.py

@@ -10,7 +10,6 @@
 from django.core import urlresolvers
 from django.db import models
 from django.utils import html as html_utils
-from django.utils.text import truncate_html_words
 from django.utils.translation import activate as activate_language
 from django.utils.translation import get_language
 from django.utils.translation import ugettext as _
@@ -77,6 +76,18 @@ def default_html_moderator(post):
 
     return post.html
 
+def truncate_html_words(value, num_words):
+    """Backwords compatibility shim."""
+    try:
+        # Django 1.4+
+        from django.utils.text import Truncator
+    except ImportError:
+        # Django 1.3
+        from django.utils.text import truncate_html_words
+        return truncate_html_words(value, num_words)
+    else:
+        return Truncator(value).words(num_words, html=True)
+
 
 class PostToGroup(models.Model):
     post = models.ForeignKey('Post')

askbot/models/question.py

@@ -13,7 +13,11 @@
 from django.core.urlresolvers import reverse
 from django.template.loader import get_template
 from django.template import Context
-from django.utils.hashcompat import md5_constructor
+try: 
+    from django.utils.hashcompat import md5_constructor
+except ImportError:
+    import hashlib
+    md5_constructor = hashlib.md5
 from django.utils.translation import ugettext as _
 from django.utils.translation import ungettext
 from django.utils.translation import string_concat