Add PostgreSQL DB driver

.travis.yml

@@ -8,6 +8,7 @@ php:
 
 services:
   - mysql
+  - postgresql
   - redis-server
 
 before_install:

src/TenantDatabaseManagers/PostgreSQLDatabaseManager.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Stancl\Tenancy\TenantDatabaseManagers;
+
+use Illuminate\Support\Facades\DB;
+use Stancl\Tenancy\Interfaces\TenantDatabaseManager;
+
+class PostgreSQLDatabaseManager implements TenantDatabaseManager
+{
+    public function createDatabase(string $name): bool
+    {
+        return DB::statement("CREATE DATABASE `$name` WITH ENCODING 'UTF8' LC_COLLATE = 'en_US.UTF-8' LC_CTYPE = 'en_US.UTF-8'");
+    }
+
+    public function deleteDatabase(string $name): bool
+    {
+        return DB::statement("DROP DATABASE `$name`");
+    }
+}

src/config/tenancy.php

@@ -38,6 +38,7 @@ return [
     'database_managers' => [
         'sqlite' => 'Stancl\Tenancy\TenantDatabaseManagers\SQLiteDatabaseManager',
         'mysql' => 'Stancl\Tenancy\TenantDatabaseManagers\MySQLDatabaseManager',
+        'pgsql' => 'Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLDatabaseManager',
     ],
     'queue_database_creation' => false,
     'queue_database_deletion' => false,

tests/TenantDatabaseManagerTest.php

@@ -78,6 +78,47 @@ class TenantDatabaseManagerTest extends TestCase
         $this->assertEmpty(DB::select("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '$db_name'"));
     }
 
+    /** @test */
+    public function pgsql_database_can_be_created_and_deleted()
+    {
+        if (! $this->isTravis()) {
+            $this->markTestSkipped('As to not bloat your PostgreSQL instance with test databases, this test is not run by default.');
+        }
+
+        config()->set('database.default', 'pgsql');
+
+        $db_name = 'testdatabase' . $this->randomString(10);
+        app(DatabaseManager::class)->create($db_name, 'pgsql');
+        $this->assertNotEmpty(DB::select("SELECT datname FROM pg_catalog.pg_database WHERE datname = '$db_name'"));
+
+        app(DatabaseManager::class)->delete($db_name, 'pgsql');
+        $this->assertEmpty(DB::select("SELECT datname FROM pg_catalog.pg_database WHERE datname = '$db_name'"));
+    }
+
+    /** @test */
+    public function pgsql_database_can_be_created_and_deleted_using_queued_commands()
+    {
+        if (! $this->isTravis()) {
+            $this->markTestSkipped('As to not bloat your PostgreSQL instance with test databases, this test is not run by default.');
+        }
+
+        config()->set('database.default', 'pgsql');
+
+        $db_name = 'testdatabase' . $this->randomString(10);
+
+        $databaseManagers = config('tenancy.database_managers');
+        $job = new QueuedTenantDatabaseCreator(app($databaseManagers['pgsql']), $db_name);
+        $job->handle();
+
+        $this->assertNotEmpty(DB::select("SELECT datname FROM pg_catalog.pg_database WHERE datname = '$db_name'"));
+
+        $databaseManagers = config('tenancy.database_managers');
+        $job = new QueuedTenantDatabaseDeleter(app($databaseManagers['pgsql']), $db_name);
+        $job->handle();
+
+        $this->assertEmpty(DB::select("SELECT datname FROM pg_catalog.pg_database WHERE datname = '$db_name'"));
+    }
+
     /** @test */
     public function database_creation_can_be_queued()
     {