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Diffstat (limited to 'docs/db-api.txt')
| -rw-r--r-- | docs/db-api.txt | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/docs/db-api.txt b/docs/db-api.txt index de612e0e3d..775913d693 100644 --- a/docs/db-api.txt +++ b/docs/db-api.txt @@ -134,6 +134,15 @@ the database until you explicitly call ``save()``. The ``save()`` method has no return value. +Updating ``ForeignKey`` fields works exactly the same way; simply assign an +object of the right type to the field in question:: + + joe = Author.objects.create(name="Joe") + entry.author = joe + entry.save() + +Django will complain if you try to assign an object of the wrong type. + How Django knows to UPDATE vs. INSERT ------------------------------------- @@ -1229,8 +1238,8 @@ whose ``headline`` contains ``'Lennon'``:: Blog.objects.filter(entry__headline__contains='Lennon') -Escaping parenthesis and underscores in LIKE statements -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Escaping percent signs and underscores in LIKE statements +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The field lookups that equate to ``LIKE`` SQL statements (``iexact``, ``contains``, ``icontains``, ``startswith``, ``istartswith``, ``endswith`` @@ -1748,7 +1757,8 @@ Shortcuts As you develop views, you will discover a number of common idioms in the way you use the database API. Django encodes some of these idioms as -shortcuts that can be used to simplify the process of writing views. +shortcuts that can be used to simplify the process of writing views. These +functions are in the ``django.shortcuts`` module. get_object_or_404() ------------------- |