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POSymfony and Doctrine Templates - Setting up a one-to-many relationship
 

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  1. POSymfony and Doctrine Templates - Setting up a one-to-many relationship
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    <p>In my DB schema I have several tables that will be related to a parent table. The "ugly" way to solve the relation stuff would be to include the dependencies manually in the schema:</p> <pre><code>sfArea: columns: id: integer name: string sfCity: columns: name: string area_id: integer relations: Area: class: sfArea local: area_id foreignType: many foreignAlias: Cities sfItem: columns: name: string area_id: integer relations: Area: class: sfArea local: area_id foreignType: many foreignAlias: Items </code></pre> <p>However, each time that I will add a class to be attached to the area, I will need to add the relation and all the lines that go with it (copy/paste => future hell). This is where I decided to use the Doctrine_Template, which allows me to achieve the same thing like that:</p> <pre><code>sfArea: columns: id: integer name: string sfCity: actAs: AreaRelated: { foreignAlias: Cities } columns: name: string sfItem: actAs: AreaRelated: { foreignAlias: Items } columns: name: string </code></pre> <p>And the template class:</p> <pre><code>class AreaRelated extends Doctrine_Template { protected $_options = array( 'foreignAlias' =&gt; '' ); public function setTableDefinition() { $this-&gt;hasColumn('area_id', 'integer'); } public function setUp() { $this-&gt;hasOne('sfArea as Area', array( 'local' =&gt; 'area_id', 'foreign' =&gt; 'id', 'foreignType' =&gt; 'many', 'foreignAlias' =&gt; $this-&gt;_options['foreignAlias'] ) ); } } </code></pre> <p>The tables are generated properly and the relation works in the direction $sfCity->Area. However, the relations that should be set up in the sfArea class are not created ($sf_area->Cities give the error "Unknown record property / related component "Cities" on "sfArea""). </p> <p>How can the other relation be created? I even tried that (without success):</p> <pre><code>//... public function setUp() { $thisTable = $this-&gt;_table; $areaTable = Doctrine::getTable("smArea"); $thisTable-&gt;hasOne('smArea as Area', array( 'local' =&gt; 'area_id', 'foreign' =&gt; 'id', 'foreignType' =&gt; Doctrine_Relation::MANY ) ); $areaTable-&gt;hasMany($thisTable-&gt;getOption('name') . ' as ' . $this-&gt;_options['foreignAlias'], array( 'local' =&gt; 'id', 'foreign' =&gt; 'area_id', 'foreignType' =&gt; Doctrine_Relation::ONE ) ); } </code></pre>
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    1. USVincent Mimoun-Prat
    1. USVincent Mimoun-Prat
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      1. USVincent Mimoun-Prat
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    1. COHmm the schema version should work i think... the only issue i see is that your `foreignAlias` should be different for each class ie `Cities` and `Items`. The hardcoded version on the other hand has issues.
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    2. COHi, yep, corrected the typos (no typo in my original code though, just here). That's my big issue, in order to avoid lots of manual copy pasting, I'd love to get the AreaRelated template working.
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      1. POSymfony and Doctrine Templates - Setting up a one-to-many relationship
      1. USVincent Mimoun-Prat
    3. COSeems like a lot of work to avoid a little copy/paste/typing. I dunno, my schemas don't change all that often.
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