Ticket #13100: 12833-diff.txt

Index: docs/ref/models/instances.txt
===================================================================
--- docs/ref/models/instances.txt       (revision 12833)
+++ docs/ref/models/instances.txt       (working copy)
@@ -34,12 +34,18 @@
 
 .. versionadded:: 1.2
 
-There are three steps in validating a model, and all three are called by a
-model's ``full_clean()`` method. Most of the time, this method will be called
-automatically by a ``ModelForm``. (See the :ref:`ModelForm documentation
-<topics-forms-modelforms>` for more information.) You should only need to call
-``full_clean()`` if you plan to handle validation errors yourself.
+There are three steps in validating a model:
 
+    * Validate the model fields
+    * Validate the model as a whole
+    * Validate the field uniqueness
+    
+All three steps are performed by a model's ``full_clean()`` method. 
+Most of the time, each step is performed automatically via the is_valid method of ``ModelForm``. (See the :ref:`ModelForm documentation <topics-forms-modelforms>` 
+for more information.) 
+You should only need to call a model's ``full_clean()`` method if you plan to 
+handle validation errors yourself.
+
 .. method:: Model.full_clean(exclude=None)
 
 This method calls ``Model.clean_fields()``, ``Model.clean()``, and
@@ -52,9 +58,8 @@
 validated since any errors raised could not be corrected by the user.
 
 Note that ``full_clean()`` will NOT be called automatically when you call
-your model's ``save()`` method. You'll need to call it manually if you want
-to run model validation outside of a ``ModelForm``. (This is for backwards
-compatibility.)
+your model's ``save()`` method, nor through ``ModelForm`` validation. 
+You'll need to call it manually when you want to run model validation outside of a ``ModelForm``. (This is for backwards compatibility.)
 
 Example::