tickets_full: 3355

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3355 2007-01-23 16:19:20 2007-07-16 17:26:42 2019-06-24 00:50:59.248159 Accepted closed Database layer (models, ORM)     master invalid filter() with related table stomps on extra(tables) I started a discussion here with no responses so I thought I'd file a bug so this doesn't get lost... http://groups.google.com/group/django-developers/browse_thread/thread/a88046d26172908d/?hl=en# Summary: If you're using extra() to specify extra tables to add to your query AND you're using filter() with a related table, the extra() table gets lost. Example (also found in the above message): This correctly adds "page_item" to the FROM clause by using extra(). Notice I'm not yet referencing a related table in the filter() clause since template_id is contained in the Page object. {{{ In [29]: Page.objects.extra( tables=['page_item'], where=['page_item.page_id=page_page.id']) .filter(template__id='1')._get_sql_clause() Out[29]: (['`page_page`.`id`', '`page_page`.`number`', '`page_page`.`title`', '`page_page`.`template_id`', '`page_page`.`description`'], ' FROM `page_page` , `page_item` WHERE page_item.page_id=page_page.id AND (`page_page`.`template_id` = %s)', ['1']) }}} But adding the related table lookup for the 'name' column in the filter() clause breaks the extra() tables and "page_item" disappears... {{{ In [30]: Page.objects.extra( tables=['page_item'], where=['page_item.page_id=page_page.id']) .filter(template__name='Default Template') ._get_sql_clause() Out[30]: (['`page_page`.`id`', '`page_page`.`number`', '`page_page`.`title`', '`page_page`.`template_id`', '`page_page`.`description`'], ' FROM `page_page` INNER JOIN `page_template` AS `page_page__template` ON `page_page`.`template_id` = `page_page__template`.`id` , `page_item` WHERE page_item.page_id=page_page.id AND (`page_page__template`.`name` = %s)', ['Default Template']) }}} adrian Rob Hudson <treborhudson@gmail.com>   0 0 0 0 0 0
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