Add support for postgres schema

assets/config.php

@@ -60,6 +60,7 @@ return [
         'sqlite' => Stancl\Tenancy\TenantDatabaseManagers\SQLiteDatabaseManager::class,
         'mysql' => Stancl\Tenancy\TenantDatabaseManagers\MySQLDatabaseManager::class,
         'pgsql' => Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLDatabaseManager::class,
+        'schema' => Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLSchemaManager::class
     ],
     'database_manager_connections' => [
         // Connections used by TenantDatabaseManagers. This tells, for example, the
@@ -67,7 +68,9 @@ return [
         'sqlite' => 'sqlite',
         'mysql' => 'mysql',
         'pgsql' => 'pgsql',
+        'schema' => 'pgsql'
     ],
+    'using_schema_connection' => false, // Only work with pgsql connection
     'bootstrappers' => [
         // Tenancy bootstrappers are executed when tenancy is initialized.
         // Their responsibility is making Laravel features tenant-aware.

src/DatabaseManager.php

@@ -100,7 +100,12 @@ class DatabaseManager
 
         // Change database name.
         $databaseName = $this->getDriver($connectionName) === 'sqlite' ? database_path($databaseName) : $databaseName;
-        $this->app['config']["database.connections.$connectionName.database"] = $databaseName;
+
+        if ($this->isUsingSchema($connectionName)) {
+            $this->app['config']["database.connections.$connectionName.schema"] = $databaseName;
+        } else {
+            $this->app['config']["database.connections.$connectionName.database"] = $databaseName;
+        }
     }
 
     /**
@@ -226,7 +231,7 @@ class DatabaseManager
      */
     public function getTenantDatabaseManager(Tenant $tenant): TenantDatabaseManager
     {
-        $driver = $this->getDriver($this->getBaseConnection($tenant->getConnectionName()));
+        $driver = $this->isUsingSchema($tenant->getConnectionName()) ? 'schema' : $this->getDriver($this->getBaseConnection($tenant->getConnectionName()));
 
         $databaseManagers = $this->app['config']['tenancy.database_managers'];
 
@@ -236,4 +241,15 @@ class DatabaseManager
 
         return $this->app[$databaseManagers[$driver]];
     }
+    
+    /**
+     * Check if using schema connection
+     * 
+     * @param string $connectionName
+     * @return bool
+     */
+    protected function isUsingSchema(string $connectionName): bool
+    {
+        return $this->getDriver($this->getBaseConnection($connectionName)) === 'pgsql' && $this->app['config']['tenancy.using_schema_connection'];
+    }
 }

src/TenantDatabaseManagers/PostgreSQLSchemaManager.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\TenantDatabaseManagers;
+
+use Illuminate\Contracts\Config\Repository;
+use Illuminate\Database\DatabaseManager as IlluminateDatabaseManager;
+use Stancl\Tenancy\Contracts\TenantDatabaseManager;
+
+class PostgreSQLSchemaManager implements TenantDatabaseManager
+{
+    /** @var \Illuminate\Database\Connection */
+    protected $database;
+
+    public function __construct(Repository $config, IlluminateDatabaseManager $databaseManager)
+    {
+        $this->database = $databaseManager->connection($config['tenancy.database_manager_connections.schema']);
+    }
+
+    public function createDatabase(string $name): bool
+    {
+        return $this->database->statement("CREATE SCHEMA \"$name\"");
+    }
+
+    public function deleteDatabase(string $name): bool
+    {
+        return $this->database->statement("DROP SCHEMA \"$name\"");
+    }
+
+    public function databaseExists(string $name): bool
+    {
+        return (bool) $this->database->select("SELECT schema_name FROM information_schema.schemata WHERE schema_name = '$name'");
+    }
+}

tests/DatabaseSchemaManagerTest.php

@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Tests;
+
+use Stancl\Tenancy\DatabaseManager;
+
+class DatabaseSchemaManagerTest extends TestCase
+{
+    public $autoInitTenancy = false;
+
+    /**
+     * Define environment setup.
+     *
+     * @param  \Illuminate\Foundation\Application  $app
+     * @return void
+     */
+    protected function getEnvironmentSetUp($app)
+    {
+        parent::getEnvironmentSetUp($app);
+
+        $app['config']->set('database.default', 'pgsql');
+        $app['config']->set('tenancy.database.based_on', null);
+        $app['config']->set('tenancy.database.suffix', '');
+        $app['config']->set('tenancy.using_schema_connection', true);
+    }
+
+    /** @test */
+    public function reconnect_method_works()
+    {
+        $old_connection_name = app(\Illuminate\Database\DatabaseManager::class)->connection()->getName();
+        
+        tenancy()->init('test.localhost');
+
+        app(\Stancl\Tenancy\DatabaseManager::class)->reconnect();
+        
+        $new_connection_name = app(\Illuminate\Database\DatabaseManager::class)->connection()->getName();
+
+        // $this->assertSame($old_connection_name, $new_connection_name);
+        $this->assertNotEquals('tenant', $new_connection_name);
+    }
+
+    /** @test */
+    public function the_default_db_is_used_when_based_on_is_null()
+    {
+        config(['database.default' => 'pgsql']);
+        
+        $this->assertSame('pgsql', config('database.default'));
+        config([
+            'database.connections.pgsql.foo' => 'bar',
+            'tenancy.database.based_on' => null,
+        ]);
+
+        tenancy()->init('test.localhost');
+
+        $this->assertSame('tenant', config('database.default'));
+        $this->assertSame('bar', config('database.connections.' . config('database.default') . '.foo'));
+    }
+
+    /** @test */
+    public function make_sure_using_schema_connection()
+    {
+        $tenant = tenancy()->create(['schema.localhost']);
+        tenancy()->init('schema.localhost');
+
+        $this->assertSame($tenant->getDatabaseName(), config('database.connections.' . config('database.default') . '.schema'));
+    }
+}

tests/TenantDatabaseManagerTest.php

@@ -11,6 +11,7 @@ use Stancl\Tenancy\Tenant;
 use Stancl\Tenancy\TenantDatabaseManagers\MySQLDatabaseManager;
 use Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLDatabaseManager;
 use Stancl\Tenancy\TenantDatabaseManagers\SQLiteDatabaseManager;
+use Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLSchemaManager;
 
 class TenantDatabaseManagerTest extends TestCase
 {
@@ -78,6 +79,7 @@ class TenantDatabaseManagerTest extends TestCase
             ['mysql', MySQLDatabaseManager::class],
             ['sqlite', SQLiteDatabaseManager::class],
             ['pgsql', PostgreSQLDatabaseManager::class],
+            ['schema', PostgreSQLSchemaManager::class]
         ];
     }