Add EntityWorkflowStepHold entity to allow workflow to be put on hold by user

Entity created, migration, and repository.

src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowStepHoldRepository.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Chill\MainBundle\Repository\Workflow;
+
+use Chill\MainBundle\Entity\User;
+use Chill\MainBundle\Entity\Workflow\EntityWorkflowStep;
+use Chill\MainBundle\Entity\Workflow\EntityWorkflowStepHold;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\ORM\NonUniqueResultException;
+use Doctrine\ORM\NoResultException;
+use Doctrine\Persistence\ManagerRegistry;
+
+class EntityWorkflowStepHoldRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, EntityWorkflowStepHold::class);
+    }
+
+    /**
+     * Find an EntityWorkflowStepHold by its ID.
+     *
+     * @param int $id
+     * @return EntityWorkflowStepHold|null
+     */
+    public function findById(int $id): ?EntityWorkflowStepHold
+    {
+        return $this->find($id);
+    }
+
+    /**
+     * Find all EntityWorkflowStepHold records.
+     *
+     * @return EntityWorkflowStepHold[]
+     */
+    public function findAllHolds(): array
+    {
+        return $this->findAll();
+    }
+
+    /**
+     * Find EntityWorkflowStepHold by a specific step.
+     *
+     * @param EntityWorkflowStep $step
+     * @return EntityWorkflowStepHold[]
+     */
+    public function findByStep(EntityWorkflowStep $step): array
+    {
+        return $this->findBy(['step' => $step]);
+    }
+
+    /**
+     * Find a single EntityWorkflowStepHold by step and user.
+     *
+     * @param EntityWorkflowStep $step
+     * @param User $user
+     * @return EntityWorkflowStepHold|null
+     * @throws NonUniqueResultException
+     */
+    public function findOneByStepAndUser(EntityWorkflowStep $step, User $user): ?EntityWorkflowStepHold
+    {
+        try {
+            return $this->createQueryBuilder('e')
+                ->andWhere('e.step = :step')
+                ->andWhere('e.byUser = :user')
+                ->setParameter('step', $step)
+                ->setParameter('user', $user)
+                ->getQuery()
+                ->getSingleResult();
+        } catch (NoResultException $e) {
+            return null;
+        }
+    }
+}