原则：按相关值过滤实体

Question

So, I have this (seemingly very simple) problem: I have a Doctrine entity, a Plan . Plan s have associated Feature s (with a value property), these have associated FeatureTypes .

Now, given a list of FeatureType IDs and the possible values for each of these, I want to filter through all Plan entities.

My entities are pretty much like this:

Plan
- id
- features (One-to-Many)

Feature
- id
- plan (Many-to-One; column would be plan_id)
- featureType (Many-to-One; column would be featureType_id)
- value

FeatureType
- id

What I mean is this: There is an array like this one:

[
    1 => [
        '1 month',
        '3 months',
        '6 months',
    ],
    2 => [
        'Prepaid',
        'On Demand',
    ]
]

The keys are FeatureType IDs, the nested arrays are the value s I'm searching for. I want all Plan s that have a Feature associated for every FeatureType in the above array, where this Feature 's value also is in the array from above.

From all I can tell, the only solution is to simply get all Plans, and then filter through them in PHP after the fact. I don't really like that approach though. Is it possible to do this directly in Doctrine somehow?

Answer 1

Ok, it appears that I have found an answer (even though this is still not as clean as I had hoped).

I'm now looping through the array ( $features ), adding a conditional INNER JOIN for every parameter:

$i = 0;

foreach ($features as $feature => $values) {
    $qb->innerJoin('plan.features', "feature_{$i}", 'WITH', "feature_{$i}.featureType = :featureType_{$i} AND feature_{$i}.value IN (:values_{$i})")
        ->setParameter("featureType_{$i}", $feature)
        ->setParameter("values_{$i}", $values);

    $i++;
}