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Added support for istartswith and iendswith in database API 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@207 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2005-07-19 15:24:03 +00:00
parent b617884ced
commit 5797066383
3 changed files with 28 additions and 16 deletions
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4
django/core/db/backends/mysql.py
View File

@ -99,7 +99,9 @@ OPERATOR_MAPPING = {
'lt': '<',
'lte': '<=',
'startswith': 'LIKE',
'endswith': 'LIKE'
'endswith': 'LIKE',
'istartswith': 'ILIKE',
'iendswith': 'ILIKE',
}
# This dictionary maps Field objects to their associated MySQL column

4
django/core/db/backends/postgresql.py
View File

@ -93,7 +93,9 @@ OPERATOR_MAPPING = {
'lt': '<',
'lte': '<=',
'startswith': 'LIKE',
'endswith': 'LIKE'
'endswith': 'LIKE',
'istartswith': 'ILIKE',
'iendswith': 'ILIKE',
}
# This dictionary maps Field objects to their associated PostgreSQL column

36
docs/db-api.txt
View File

@ -52,21 +52,29 @@ The DB API supports the following lookup types:
========== ==============================================================
Type Description
========== ==============================================================
exact Exact match: ``polls.get_object(id__exact=14)``
exact Exact match: ``polls.get_object(id__exact=14)``.
iexact Case-insensitive exact match:
``polls.get_list(slug__iexact="foo")`` matches a slug of ``foo``,
``FOO``, ``fOo``, etc.
contains Case-sensitive containment test:
``polls.get_list(question__contains="spam")`` returns all polls
that contain "spam" in the question.
icontains Case-insensitive containment test
gt Greater than: ``polls.get_list(id__gt=4)``
gte Greater than or equal to
lt Less than
lte Less than or equal to
that contain "spam" in the question. (PostgreSQL only. MySQL
doesn't support case-sensitive LIKE statements; ``contains``
will act like ``icontains`` for MySQL.)
icontains Case-insensitive containment test.
gt Greater than: ``polls.get_list(id__gt=4)``.
gte Greater than or equal to.
lt Less than.
lte Less than or equal to.
startswith Case-sensitive starts-with:
``polls.get_list(question_startswith="Would")``
endswith Case-sensitive ends-with
``polls.get_list(question_startswith="Would")``. (PostgreSQL
only. MySQL doesn't support case-sensitive LIKE statements;
``startswith`` will act like ``istartswith`` for MySQL.)
endswith Case-sensitive ends-with. (PostgreSQL only. MySQL doesn't
support case-sensitive LIKE statements; ``endswith`` will act
like ``iendswith`` for MySQL.)
istartswith Case-insensitive starts-with.
iendswith Case-insensitive ends-with.
range Range test:
``polls.get_list(pub_date__range=(start_date, end_date))``
returns all polls with a pub_date between ``start_date``
@ -308,13 +316,13 @@ Creating new objects
Creating new objects (i.e. ``INSERT``) is done by creating new instances
of objects then calling save() on them::
>>> p = polls.Poll(id=None,
>>> p = polls.Poll(id=None,
... slug="eggs",
... question="How do you like your eggs?",
... pub_date=datetime.datetime.now(),
... expire_date=some_future_date)
>>> p.save()
Calling ``save()`` on an object with an id if ``None`` signifies to
Django that the object is new and should be inserted.
@ -326,7 +334,7 @@ Related objects (i.e. ``Choices``) are created using convience functions::
>>> p.add_choice(choice="Poached", votes=0)
>>> p.get_choice_count()
4
Each of those ``add_choice`` methods is equivilent to (except obviously much
simpler than)::
@ -335,9 +343,9 @@ simpler than)::
... choice="Over easy",
... votes=0)
>>> c.save()
Note that when using the `add_foo()`` methods, you do not give any value
for the ``id`` field, nor do you give a value for the field that stores
for the ``id`` field, nor do you give a value for the field that stores
the relation (``poll_id`` in this case).
Deleting objects