Changes between Version 29 and Version 30 of NewbieMistakes

Timestamp:

Nov 11, 2006, 3:12:57 PM (17 years ago)

Author:

dazer017@…

Comment:

Searched for hours to find this mistake, nobody else should suffer like me...

NewbieMistakes

@@ -266 +266 @@
 
 Rename your application directory using a non-reserved name, i.e., "email_app" instead of "email". Go into the {{{INSTALLED_APPS}}} section of settings.py and change the name there too. Also, don't forget to do a syncdb to create the newly renamed app in your database. You may also want to go in to your database and drop the old "mis-named" table.
+
+== unbound method contributee_to_class() ==
+
+==== Symptom ====
+
+A model does not validate with the following message:
+
+{{{
+Validating models...
+project.allication: Error when calling the metaclass bases
+    unbound method contribute_to_class() must be called with TextField instance as first argument (got ModelBase instance instead)
+1 error found.
+}}}
+
+==== Possible Cause ====
+
+A model field was not declared properly, the parentheses after the field types name were missing:
+
+wrong:
+{{{
+#!python
+class Content(models.Model):
+    content = models.TextField
+}}}
+
+correct:
+{{{
+#!python
+class Content(models.Model):
+    content = models.TextField()
+}}}
+
+==== Solution ====
+
+The field declaration are sonething like generator methods, so they need parentheses after their name. Add them and the model will validate.