Fix #39. Duplicated index 'subscriptions.subscription_unique' removed.

app/DoctrineMigrations/Version20171106013937.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * subscription_unique index was removed because it was duplicating PK of the table.
+ */
+class Version20171106013937 extends AbstractMigration
+{
+    /**
+     * @param Schema $schema
+     */
+    public function up(Schema $schema)
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        $this->addSql('DROP INDEX subscriptions.subscription_unique');
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function down(Schema $schema)
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        $this->addSql('CREATE UNIQUE INDEX subscription_unique ON subscriptions.subscriptions (author_id, subscriber_id)');
+    }
+}

src/Skobkin/Bundle/PointToolsBundle/Entity/Subscription.php

@@ -5,9 +5,7 @@ namespace Skobkin\Bundle\PointToolsBundle\Entity;
 use Doctrine\ORM\Mapping as ORM;
 
 /**
- * @ORM\Table(name="subscriptions", schema="subscriptions", uniqueConstraints={
+ * @ORM\Table(name="subscriptions", schema="subscriptions")
- *      @ORM\UniqueConstraint(name="subscription_unique", columns={"author_id", "subscriber_id"})}
- * )
  * @ORM\Entity(repositoryClass="Skobkin\Bundle\PointToolsBundle\Repository\SubscriptionRepository", readOnly=true)
  */
 class Subscription