duanlangwen9597 2012-07-10 19:06
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如何根据Doctrine2中表中的另一个字段更新字段?

I have table with two columns: price and constant.

I would like to run update on all entries in table to update price based on constant * coefficient.

How could I do such query?

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  • duankanyi6539 2012-07-10 19:24
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    You can do that with a DQL query:

    $em->createQuery('
        UPDATE entityClass e
        SET e.price = e.constant * 33;
    ');
    

    You can also do that with raw SQL:

    $em->getConnection()->executeUpdate('
        UPDATE entity_table_name AS e
        SET e.price = e.constant * 33;
    ');
    

    You could also add a listener on the preUpdate & prePersist doctrine event, so that these values are updated automatically.

    See http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/events.html#preupdate for an example.

    So that each time you save your entity, it will update the related field automatically.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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