expanded range of supported versions of django and added patches for csrf_token

2 files changed, 54 insertions, 0 deletions

diff --git a/askbot/deployment/assertions.py b/askbot/deployment/assertions.py
new file mode 100644
index 00000000..0db62b84
--- /dev/null
+++ b/askbot/deployment/assertions.py
@@ -0,0 +1,26 @@
+"""assertions regarding deployment of askbot
+todo: move here stuff from startup_procedures.py
+
+the reason - some assertions need to be run in askbot/__init__
+as opposed to startup_procedures.py - which are executed in the 
+beginning of the models module
+"""
+from askbot.deployment import package_utils
+from askbot.exceptions import DeploymentError
+
+def assert_package_compatibility():
+    """raises an exception if any known incompatibilities 
+    are found
+    """
+    (django_major, django_minor, django_micro) = package_utils.get_django_version()
+    if django_major < 1:
+        raise DeploymentError('Django version < 1.0 is not supported by askbot')
+
+    coffin_version = package_utils.get_coffin_version()
+    if coffin_version == (0, 3, 0) and django_major == 1 and django_minor > 1:
+        raise DeploymentError(
+            'Coffin package version 0.3 is not compatible '
+            'with the current version of Django, please upgrade '
+            'coffin to at least 0.3.3'
+        )
+
diff --git a/askbot/deployment/package_utils.py b/askbot/deployment/package_utils.py
new file mode 100644
index 00000000..c2a9b65c
--- /dev/null
+++ b/askbot/deployment/package_utils.py
@@ -0,0 +1,28 @@
+"""utilities that determine versions of packages
+that are part of askbot
+
+versions of all packages are normalized to three-tuples
+of integers (missing zeroes added)
+"""
+import coffin
+import django
+
+def get_coffin_version():
+    """Returns version of Coffin package
+    as a three integer value tuple
+    """
+    version = coffin.__version__
+    if len(version) == 2:
+        micro_version = 0
+    elif len(version) == 3:
+        micro_version = version[2]
+    else:
+        raise ValueError('unsupported version of coffin %s' % '.'.join(version))
+    major_version = version[0]
+    minor_version = version[1]
+    return (major_version, minor_version, micro_version)
+
+def get_django_version():
+    """returns three-tuple for the version 
+    of django"""
+    return django.VERSION[:3]