Updating the variable that tracks previous comments in Disqus,

only when a comment is successfully created/udpated.

Keeping track of comments made in Disqus is essential to avoid errors
that the same comment was made twice.
A failure on creating/updating a comment could make the variable to go out of sync
in previous implementation.

Author: freskoulix

codebender_testing/disqus.py

@@ -176,7 +176,6 @@ def create_post(self, thread_id, message):
             self.last_post = message
         elif re.match(r'^.+\.$', self.last_post):
             message = message[:-1]
-        self.last_post = message
 
         comment_status = False
 
@@ -189,6 +188,7 @@ def create_post(self, thread_id, message):
                                                 thread=response[0]['id'],
                                                 message=message, method='POST')
             if response['raw_message'] == message:
+                self.last_post = message
                 comment_status = True
         except Exception as error:
             print 'Error:', error
@@ -200,7 +200,6 @@ def update_post(self, post_id, message):
             self.last_post = message
         elif re.match(r'^.+\.$', self.last_post):
             message = message[:-1]
-        self.last_post = message
 
         comment_status = False
 
@@ -211,6 +210,7 @@ def update_post(self, post_id, message):
                                                 post=post_id,
                                                 message=message, method='POST')
             if response['raw_message'] == message:
+                self.last_post = message
                 comment_status = True
         except Exception as error:
             print 'Error:', error