Loading Models with INNER JOIN

Let's say I have a Phalcon\Mvc\Model that I load using ::findFirst($id).

How can I swap in a custom query that would load the model row and do INNER JOIN on some other table?

Thanks!

I'm sure you can use the Query builder for simple joins like:

<?php

//Getting a whole set
$robots = $this->modelsManager->createBuilder()
    ->from('Robots')
    ->join('RobotsParts')
    ->orderBy('Robots.name')
    ->getQuery()
    ->execute();

//Getting the first row
$robots = $this->modelsManager->createBuilder()
    ->from('Robots')
    ->join('RobotsParts')
    ->orderBy('Robots.name')
    ->getQuery()
    ->getSingleResult();

Or PHQL example from the documentation:

<?php

$phql = "SELECT Robots.*
    FROM Robots JOIN RobotsParts p
    ORDER BY Robots.name LIMIT 20";
$result = $manager->executeQuery($phql);

By default, an INNER JOIN is assumed. You can specify the type of JOIN in the query though.

Reference: http://docs.phalconphp.com/en/latest/reference/phql.html#creating-queries-using-the-query-builder

Then I'd overload model's findFirst() method to utilize the above code and assign result values to model's properties.

You are able to do this, you need to use the query static method on a Model which extends the Phalcon MVC Model class.

    $followingUsers = Users::query()
        ->leftJoin('Common\WideZike\Models\UsersFollowers', 'Common\WideZike\Models\Users.id = Common\WideZike\Models\UsersFollowers.followingId')
        ->where('Common\WideZike\Models\UsersFollowers.followerId = :userId:', array('userId' => $user->getId()))
        ->orderBy('Common\WideZike\Models\UsersFollowers.addedDate DESC')
        ->execute();

Hope this helps!

$activations = UserActivations::query()
    ->columns("UserActivations.id")
    ->leftJoin("Deals", "d.id = UserActivations.dealId", "d") 
    ->where("UserActivations.state = 1")
    ->execute();

来源：https://stackoverflow.com/questions/21715835/loading-models-with-inner-join

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