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105 Commits

Author SHA1 Message Date
Adrian Holovaty 315145f7ca Fixed #10459 -- Refactored the internals of database connection objects so that connections know their own settings and pass around settings as dictionaries instead of passing around the Django settings module itself. This will make it easier for multiple database support. Thanks to Alex Gaynor for the initial patch. 
This is backwards-compatible but will likely break third-party database backends. Specific API changes are:

* BaseDatabaseWrapper.__init__() now takes a settings_dict instead of a settings module. It's called settings_dict to disambiguate, and for easy grepability. This should be a dictionary containing DATABASE_NAME, etc.

* BaseDatabaseWrapper has a settings_dict attribute instead of an options attribute. BaseDatabaseWrapper.options is now BaseDatabaseWrapper['DATABASE_OPTIONS']

* BaseDatabaseWrapper._cursor() no longer takes a settings argument.

* BaseDatabaseClient.__init__() now takes a connection argument (a DatabaseWrapper instance) instead of no arguments.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@10026 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-03-11 03:39:34 +00:00
Malcolm Tredinnick 326c5813b9 Removed a FIXME from the queryset-refactor days. 
Turns out, nothing needed to be fixed.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10018 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-03-10 11:21:46 +00:00
Malcolm Tredinnick b4dd4d4bb7 Fixed #3163 -- Add a "Meta.managed" option to models. 
This allows a model to be defined which is not subject to database table
creation and removal. Useful for models that sit over existing tables or
database views.

Thanks to Alexander Myodov, Wolfgang Kriesing and Ryan Kelly for the bulk of
this patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10008 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-03-09 03:35:02 +00:00
Russell Keith-Magee 7d03ca9e86 Fixed #10161 -- Modified evaluation of query expressions to allow for operators that take the form of functions. This is mostly for the benefit of Oracle, but it should prove useful later on. Thanks to Ian for the report and feedback on the fix. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9898 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-02-24 11:15:31 +00:00
Russell Keith-Magee 65ad2132ab Fixed #10142 -- Added docs and an exploding error message to highlight an error present in the implementation of STDDEV_POP and VAR_POP in PostgreSQL 8.2-8.2.4 that will give incorrect answers (the database function mistakenly returns sample, rather than population deviation/variance). Thanks to Vinay Sajip <vinay_sajip@yahoo.co.uk> for the report, and Ian Kelly for pointing out the cause of the problem. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9804 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-02-02 12:03:31 +00:00
Russell Keith-Magee cc4e4d9aee Fixed #3566 -- Added support for aggregation to the ORM. See the documentation for details on usage. 
Many thanks to:
 * Nicolas Lara, who worked on this feature during the 2008 Google Summer of Code.
 * Alex Gaynor for his help debugging and fixing a number of issues.
 * Justin Bronn for his help integrating with contrib.gis.
 * Karen Tracey for her help with cross-platform testing.
 * Ian Kelly for his help testing and fixing Oracle support.
 * Malcolm Tredinnick for his invaluable review notes.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9742 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2009-01-15 11:06:34 +00:00
Malcolm Tredinnick a1cbeb9afb If an SQL query doesn't specify any ordering, avoid the implicit sort 
that happens with MySQL when a "GROUP BY" clause is included. This is a
backend-specific operation, so any other databases requiring similar
encouragement can have a function added to their own backend code.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9637 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-12-10 05:19:27 +00:00
Ian Kelly 485316017a Fixed a pair of bugs in determining the set of models to flush that were causing test cause failures in Oracle after [9536]. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9546 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-12-02 16:58:06 +00:00
Ian Kelly 0cd7fbec56 Fixed an incorrectly named DatabaseOperations method. It was causing non-Oracle backends to fail when running syncdb with tablespaces set. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@9004 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-09-10 23:03:07 +00:00
Adrian Holovaty 42a878cfea db: Gave each DatabaseClient class an 'executable_name' attribute (e.g., 'psql' or 'mysql'), so that we can use it to make a more helpful error message. Refs #8978 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8989 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-09-09 02:13:58 +00:00
Malcolm Tredinnick 4480645ac3 Fixed #8316 -- Put tighter restrictions on the type of Foreign Key fields 
created for MySQL (because MySQL + InnoDB has those restrictions).
Patch from julianb.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8782 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-09-01 00:49:03 +00:00
Malcolm Tredinnick 71dda19184 Fixed #8597 -- Allow the use of strings containing underscores and percentage 
signs in "iexact" queries on PostgreSQL again (this case was missed in [8536]).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8646 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-08-28 05:42:05 +00:00
Malcolm Tredinnick 220993bcc5 Added savepoint support to the transaction code. 
This is a no-op for most databases. Only necessary on PostgreSQL so that we can
do things which will possibly intentionally raise an IntegrityError and not
have to rollback the entire transaction. Not supported for PostgreSQL versions
prior to 8.0, so should be used sparingly in internal Django code.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8314 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-08-12 05:34:56 +00:00
Jacob Kaplan-Moss ab1a442a01 Fixed stupid syntax error in [8303]. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8305 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-08-11 15:54:42 +00:00
Jacob Kaplan-Moss 5d837afe23 Fixed #8228: fixed a Python 2.3 compatibility from [8296]. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8303 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-08-11 15:24:44 +00:00
Russell Keith-Magee 9dc4ba875f Fixed #5461 -- Refactored the database backend code to use classes for the creation and introspection modules. Introduces a new validation module for DB-specific validation. This is a backwards incompatible change; see the wiki for details. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8296 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-08-11 12:11:25 +00:00
Malcolm Tredinnick b7e74e5e56 Fixed #8028 -- A couple of small docstring fixes from [8131]. Thanks, Leo Soto. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@8146 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-07-30 03:16:39 +00:00
Malcolm Tredinnick b3b71a0922 Fixed #7560 -- Moved a lot of the value conversion preparation for 
loading/saving interactions with the databases into django.db.backend. This
helps external db backend writers and removes a bunch of database-specific
if-tests in django.db.models.fields.

Great work from Leo Soto.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8131 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-07-29 05:09:29 +00:00
Malcolm Tredinnick 3b37c8151a Fixed #7411 -- worked around some possible transaction conflicts in SQLite. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7926 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-07-15 18:47:32 +00:00
Malcolm Tredinnick 6048389391 Fixed #7532 -- Removed some dead code from the db backends. Thanks, Ramiro. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7852 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-07-06 14:26:37 +00:00
Malcolm Tredinnick f9df4d1435 Make sure we only create the minimum number of table indexes for MySQL. 
This patch simplifies a bunch of code for all backends and removes some
duplicate index creation for MySQL, in particular (versions 4.x and later).
Patch from Nis Jørgensen.

Fixed #5671, #5680, #7170, #7186.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7790 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-06-30 04:46:59 +00:00
Adrian Holovaty 2b926d4222 Fixed #7319 -- Removed unused DatabaseFeatures attribute 'needs_upper_for_iops'. Thanks, leosoto 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7747 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-06-26 04:05:48 +00:00
Adrian Holovaty 06315375ce Fixed #7420 -- Abstracted some more database options into DatabaseFeatures -- supports_usecs, time_field_needs_date, interprets_empty_strings_as_nulls and date_field_supports_time_value -- and changed various hard-coded 'if DATABASE_BACKEND == oracle' statements to use the new options. Thanks to ramiro for the patch 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7643 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-06-16 03:15:04 +00:00
Adrian Holovaty ac5b9f5857 Fixed #7427 -- Fixed docstring that was rendered incorrect due to qs-rf. Thanks, ramiro 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7624 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-06-12 04:23:14 +00:00
Malcolm Tredinnick ba010ec1c0 Made some types of nested update queries very slightly more efficient at the 
database level. Also worked around the fact that MySQL (and maybe other
backends we don't know about) cannot select from the table they're updating.

Fixed #7095.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7496 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-04-28 11:51:52 +00:00
Malcolm Tredinnick 9c52d56f6f Merged the queryset-refactor branch into trunk. 
This is a big internal change, but mostly backwards compatible with existing
code. Also adds a couple of new features.

Fixed #245, #1050, #1656, #1801, #2076, #2091, #2150, #2253, #2306, #2400, #2430, #2482, #2496, #2676, #2737, #2874, #2902, #2939, #3037, #3141, #3288, #3440, #3592, #3739, #4088, #4260, #4289, #4306, #4358, #4464, #4510, #4858, #5012, #5020, #5261, #5295, #5321, #5324, #5325, #5555, #5707, #5796, #5817, #5987, #6018, #6074, #6088, #6154, #6177, #6180, #6203, #6658


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7477 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2008-04-27 02:50:16 +00:00
Malcolm Tredinnick 595e75e8dd Fixed #5729 -- For MySQL (only), always delay the creation of foreign key 
references, for all tables, until after the table has been created. This means
that when using the InnoDB storage engine, true foreign key constraints are
created (inline "REFERENCES" are ignored by InnoDB, unfortunately).

Fully backwards compatible.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6650 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-11-04 05:05:24 +00:00
Adrian Holovaty c599de2ac6 Added a BaseDatabaseOperations.last_executed_query() hook, which allows a database backend to specify how to get the last-executed query on a given cursor. Implemented it for the psycopg2 backend. This means that for psycopg2, the SQL statements in django.db.connection.queries will now reflect the exact SQL as sent to the server, instead of a naive and misleading string-interpolated version 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@6601 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-10-23 19:00:31 +00:00
Ian Kelly 93f60163e8 Fixed #5218: Made Oracle create autoinc triggers using the correct name 
of the AutoField column rather than always assume "ID".


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6195 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-09-14 18:12:36 +00:00
Adrian Holovaty b105a52882 Refactored get_drop_sequence() to DatabaseOperations.drop_sequence_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5978 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 03:08:32 +00:00
Adrian Holovaty 4c5248f98f Refactored get_field_cast_sql() to DatabaseOperations.field_cast_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5977 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 03:03:40 +00:00
Adrian Holovaty e13ea3c70d Refactored get_query_set_class() to DatabaseOperations.query_set_class(). Also added BaseDatabaseFeatures.uses_custom_queryset. Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5976 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 02:39:05 +00:00
Adrian Holovaty 1a8f9b2b97 Implemented BaseDatabaseFeatures and changed all code to access it -- connection.features.foo instead of backend.foo 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5974 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 02:20:33 +00:00
Adrian Holovaty c2c3e93096 Removed _dict_helper() DB backend helper function, as it wasn't being used anymore 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5971 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 01:15:32 +00:00
Adrian Holovaty 1b4cfd4fea Removed backend.dictfetchone(), as it wasn't being used anywhere 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5968 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 01:13:12 +00:00
Adrian Holovaty 221f99ed58 Refactored quote_name() to DatabaseOperations.quote_name(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5967 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 01:03:33 +00:00
Adrian Holovaty d4f218bd91 Refactored get_tablespace_sql() to DatabaseOperations.tablespace_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5966 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 00:30:19 +00:00
Adrian Holovaty 13061bf20b Refactored get_start_transaction_sql() to DatabaseOperations.start_transaction_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5965 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 00:24:03 +00:00
Adrian Holovaty 147e99a08a Refactored get_sql_sequence_reset() to DatabaseOperations.sequence_reset_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5964 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 00:21:10 +00:00
Adrian Holovaty aaed6e04ec Refactored get_sql_flush() to DatabaseOperations.sql_flush(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5963 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 00:15:53 +00:00
Adrian Holovaty c44fb66551 Refactored get_random_function_sql() to DatabaseOperations.random_function_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5962 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-20 00:04:20 +00:00
Adrian Holovaty aaf8760227 Refactored get_pk_default_value() to DatabaseOperations.pk_default_value(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5961 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:59:06 +00:00
Adrian Holovaty e4b7e369dd Refactored get_max_name_length() to DatabaseOperations.max_name_length(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5960 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:53:39 +00:00
Adrian Holovaty d3e69c3a47 Refactored get_limit_offset_sql() to DatabaseOperations.limit_offset_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5959 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:24:59 +00:00
Adrian Holovaty 5ce050a5f5 Refactored get_last_insert_id() to DatabaseOperations.last_insert_id(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5958 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:18:43 +00:00
Adrian Holovaty 5a6426448f Refactored get_fulltext_search_sql() to DatabaseOperations.fulltext_search_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5957 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:13:06 +00:00
Adrian Holovaty 23a736dca9 Refactored get_drop_foreignkey_sql() to DatabaseOperations.drop_foreignkey_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5956 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:07:34 +00:00
Adrian Holovaty 8e84d35d38 Refactored get_deferrable_sql() to DatabaseOperations.deferrable_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5955 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 23:03:38 +00:00
Adrian Holovaty ed8e392f77 Added extra documentation to BaseDatabaseOperations.datetime_cast_sql() docstring 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5954 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 22:57:08 +00:00
Adrian Holovaty 29f67dce9e Refactored get_datetime_cast_sql() to DatabaseOperations.datetime_cast_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5953 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 22:55:05 +00:00
Adrian Holovaty 5f51f0524a Refactored get_date_trunc_sql() to DatabaseOperations.date_trunc_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5952 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 22:47:43 +00:00
Adrian Holovaty aab04a4c2f Refactored get_date_extract_sql() to DatabaseOperations.date_extract_sql(). Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5951 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 22:40:06 +00:00
Adrian Holovaty 38b5d7f23d Began implementing BaseDatabaseOperations class for every database backend. This class will be used to hold the database-specific methods that currently live at the module level in each backend. Only autoinc_sql() has been implemented so far. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5950 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 22:29:57 +00:00
Adrian Holovaty 7c41b19c8a Refactored all database backends to inherit from a common base class to remove quite a bit of duplicated code. Thanks for the patch, Brian Harring. Refs #5106 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5949 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2007-08-19 21:30:57 +00:00
Adrian Holovaty f69cf70ed8 MERGED MAGIC-REMOVAL BRANCH TO TRUNK. This change is highly backwards-incompatible. Please read http://code.djangoproject.com/wiki/RemovingTheMagic for upgrade instructions. 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@2809 bcc190cf-cafb-0310-a4f2-bffc1f526a37
 2006-05-02 01:31:56 +00:00