Add personal wiki

wiki/models.py

@@ -0,0 +1,25 @@
+from django.db import models
+
+class WikiDoesNotExist(Exception):
+    pass
+
+class WikiPageMissing(Exception):
+    pass
+
+class PersonalWikiManager(models.Manager):
+    def save_personal_wiki(self, username, repo_id):
+        """
+        Create or update group wiki.
+        """
+        try:
+            wiki = self.get(username=username)
+            wiki.repo_id = repo_id
+        except self.model.DoesNotExist:
+            wiki = self.model(username=username, repo_id=repo_id)
+        wiki.save(using=self._db)
+        return wiki
+
+class PersonalWiki(models.Model):
+    username = models.CharField(max_length=256, unique=True)
+    repo_id = models.CharField(max_length=36)
+    objects = PersonalWikiManager()