Query objects

01_repository.php

<?php

class SomeEntityRepository extends EntityRepository
{
    public function findThis()
    {
        // method body
    }
    
    public function findThat()
    {
        // method body
    }
    
    public function findThese()
    {
        // method body
    }
    
    public function findThose()
    {
        // method body
    }
}

02_query_objects.php

<?php

class FindThisQuery
{
    private $em;
    private $repository;
    
    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
        $this->repository = $em->getRepository(Entity::class);
    }
    
    public function __invoke()
    {
        // query logic
    }
}

class FindThatQuery
{
    private $em;
    private $repository;
    
    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
        $this->repository = $em->getRepository(Entity::class);
    }
    
    public function __invoke()
    {
        // query logic
    }
}

class FindTheseQuery
{
    private $em;
    private $repository;
    
    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
        $this->repository = $em->getRepository(Entity::class);
    }
    
    public function __invoke()
    {
        // query logic
    }
}

class FindThoseQuery
{
    private $em;
    private $repository;
    
    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
        $this->repository = $em->getRepository(Entity::class);
    }
    
    public function __invoke()
    {
        // query logic
    }
}

03_usage.php

<?php

class Foo
{
    private $findThisQuery;
    private $findThatQuery;
    
    public function __construct(FindThisQuery $findThisQuery, FindThatQuery $findThatQuery)
    {
        $this->findThisQuery = $findThisQuery;
        $this->findThatQuery = $findThatQuery;
    }
    
    pubic function doStuff()
    {
        $resultForThis = ($this->findThisQuery)();
        $resultForThat = ($this->findThatQuery)();
        
        // do something...
    }
}