http://www.doctrine-project.org/jira This file is an XML representation of an issue en-us 5.2.7 850 21-02-2013 http://www.doctrine-project.org/jira/browse/DC-377 Doctrine 1 <p>With Taggable extension, when I try to delete a record using Taggable, I get this exception :</p> <blockquote> <p>SQLSTATE<span class="error">&#91;23000&#93;</span>: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`sf_sandbox/article_taggable_tag`, CONSTRAINT `article_taggable_tag_id_article_id` FOREIGN KEY (`id`) REFERENCES `article` (`id`))</p></blockquote> <p>If I check the sql queries generated by Doctrine, there are not "onDelete CASCADE" for one of relation added by Taggable extension.</p> <p>I have write some test cases for reproduce this bug (checking if relation has a property onDelete setted to CASCADE) but I can't reproduce the thrown exception in test case because sqlite omits queries with constraint. Also, I found how to fix this bug.</p> <p>The fix and test cases are available in the file attached to this ticket.</p> PHP 5.3.1, Mac OS X (10.6), MySQL 5.0.86, Symfony 1.4.1 DC-377

Cannot delete a taggable record (Taggable Extension)

Bug Major Closed Fixed Jonathan H. Wage Fabien Pennequin Tue, 22 Dec 2009 17:58:17 +0000 Fri, 10 Aug 2012 01:51:22 +0000 Mon, 15 Mar 2010 14:40:42 +0000 1.2.0 1.2.1 1.2.2 Extensions 1 3 <p>Hi Jon-</p> <p>Where can I find this fix?</p> <p><a href="http://svn.doctrine-project.org/extensions/Taggable/branches/1.2-1.0" class="external-link">http://svn.doctrine-project.org/extensions/Taggable/branches/1.2-1.0</a> (the link referenced from the docs at <a href="http://www.doctrine-project.org/extension/Taggable" class="external-link">http://www.doctrine-project.org/extension/Taggable</a>) doesn't have this fix.</p> <p>Sorry, it appears the patch attached above <b>is</b> in SVN, however this is still broken.</p> <p>With Doctrine 1.2.2 sandbox configured to work with MySQL 5.x database on 5.2.10, using the following schema</p> <p>{{<br/> BlogPost:<br/> actAs: <span class="error">&#91;Taggable&#93;</span><br/> columns:<br/> title:<br/> type: string(255)<br/> notnull: true<br/> description:<br/> type: string(255)<br/> notnull: true<br/> }}</p> <p>the CASCADE in the constraints for the table being applied the Taggable behavior are still not being applied (see first constraint below)</p> <p>{{<br/> CREATE TABLE `blog_post_taggable_tag` (<br/> `id` bigint(20) NOT NULL DEFAULT '0',<br/> `tag_id` bigint(20) NOT NULL DEFAULT '0',<br/> PRIMARY KEY (`id`,`tag_id`),<br/> KEY `blog_post_taggable_tag_tag_id_taggable_tag_id` (`tag_id`),<br/> CONSTRAINT `blog_post_taggable_tag_id_blog_post_id` FOREIGN KEY (`id`) REFERENCES `blog_post` (`id`),<br/> CONSTRAINT `blog_post_taggable_tag_tag_id_taggable_tag_id` FOREIGN KEY (`tag_id`) REFERENCES `taggable_tag` (`id`) ON DELETE CASCADE ON UPDATE CASCADE<br/> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 | <br/> }}</p> <p>I use Doctrine v1.2.4 and created a fix for this problem, change the _options array initialization in Taggable.php to this:</p> <p> protected $_options = array(<br/> 'builderOptions' =&gt; array(),<br/> 'tagField' =&gt; null,<br/> 'cascadeDelete' =&gt; true<br/> );</p> <p>This works because parent::buildRelation() calls the buildLocalRelation() method in Generator.php which looks for the cascadeDelete and if true then it adds the necessary CASCADE params, as you can see below:</p> <p>public function buildLocalRelation($alias = null)<br/> {<br/> ...<br/> if (isset($this-&gt;_options<span class="error">&#91;&#39;cascadeDelete&#39;&#93;</span>) &amp;&amp; $this-&gt;_options<span class="error">&#91;&#39;cascadeDelete&#39;&#93;</span> &amp;&amp; ! $this-&gt;_options<span class="error">&#91;&#39;appLevelDelete&#39;&#93;</span>) </p> { $options['onDelete'] = 'CASCADE'; $options['onUpdate'] = 'CASCADE'; } <p> ...</p> <p>Now both parts of the taggable relation get the cascade on delete feature. So if you delete a tag OR you delete a post, the row in the taggable_tag table gets deleted too.</p>