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POQuery builder join on many to many relationship
 

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    <p>I am trying to use query builder to select all the categories that belong to a certain superCategory (category and superCategory have a many to many relationship). However, I am unable to build a correct query builder sentence because I don't know how to reference to the superCategory from my category as there is no superCategory field inside my category ID.</p> <p>The objects in the database look like :</p> <pre><code>Category: id name SuperCategory id name categories_superCategories id category_id superCategory_id </code></pre> <p>Here are the definition of my objects (yml files ) :</p> <pre><code>YOP\YourOwnPoetBundle\Entity\TraitCategory: type: entity repositoryClass: YOP\YourOwnPoetBundle\Repository\TraitCategoryRepository table: null fields: id: type: integer id: true generator: strategy: AUTO name: type: string length: '255' lifecycleCallbacks: { } manyToMany: superCategories: targetEntity: SuperCategory joinTable: name: traitCategories_superCategories joinColumns: traitCategory_id: referencedColumnName: id inverseJoinColumns: superCategory_id: referencedColumnName: id </code></pre> <p>and</p> <pre><code>YOP\YourOwnPoetBundle\Entity\SuperCategory: type: entity repositoryClass: YOP\YourOwnPoetBundle\Repository\SuperCategoryRepository table: null fields: id: type: integer id: true generator: strategy: AUTO name: type: string length: '255' lifecycleCallbacks: { } manyToMany: msgCategories: targetEntity: MsgCategory mappedBy: superCategories traitCategories: targetEntity: TraitCategory mappedBy: superCategories </code></pre> <p>How would I build a query builder sentence to get the categories that belong to a certain superCategory ?</p> <p>The query inside my CategoryRepository :</p> <pre><code>$this-&gt;createQueryBuilder('c') -&gt;innerJoin( ?????? ) -&gt;setParameter('superCategoryName', $superCategoryName); </code></pre> <p>Thank you...</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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