load postal codes dynamically

Resources/migrations/Version20180703191509.php

@@ -0,0 +1,33 @@
+<?php declare(strict_types=1);
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * Add index to postal code
+ */
+final class Version20180703191509 extends AbstractMigration
+{
+    public function up(Schema $schema) : void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        try {
+            $this->addSql('CREATE EXTENSION IF NOT EXISTS pg_trgm');
+            $this->addSql('CREATE INDEX search_name_code ON chill_main_postal_code USING GIN (LOWER(code) gin_trgm_ops, LOWER(label) gin_trgm_ops)');
+        } catch (\Exception $e) {
+            $this->skipIf(true, "Could not create extension pg_trgm");
+        }
+        
+    }
+
+    public function down(Schema $schema) : void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on \'postgresql\'.');
+
+        $this->addSql('DROP INDEX search_name_code');
+        
+    }
+}