[2.x] Tenant config (#145)

* TenantConfig first draft

* Apply fixes from StyleCI

* Add unsetTenantConfig

* Fix DB storage driver bug, add regression test (tenant_data_can_be_set_during_creation)

* Add tests & config keys

* Apply fixes from StyleCI

src/Features/TenantConfig.php

@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Features;
+
+use Illuminate\Foundation\Application;
+use Stancl\Tenancy\Contracts\Feature;
+use Stancl\Tenancy\Tenant;
+use Stancl\Tenancy\TenantManager;
+
+class TenantConfig implements Feature
+{
+    /** @var Application */
+    protected $app;
+
+    /** @var array */
+    public $originalConfig = [];
+
+    public function __construct(Application $app)
+    {
+        $this->app = $app;
+
+        foreach ($this->getStorageToConfigMap() as $configKey) {
+            $this->originalConfig[$configKey] = $this->app['config'][$configKey];
+        }
+    }
+
+    public function bootstrap(TenantManager $tenantManager): void
+    {
+        $tenantManager->eventListener('bootstrapped', function (TenantManager $manager) {
+            $this->setTenantConfig($manager->getTenant());
+        });
+
+        $tenantManager->eventListener('ended', function () {
+            $this->unsetTenantConfig();
+        });
+    }
+
+    public function setTenantConfig(Tenant $tenant): void
+    {
+        foreach ($this->getStorageToConfigMap() as $storageKey => $configKey) {
+            $this->app['config'][$configKey] = $tenant->get($storageKey);
+        }
+    }
+
+    public function unsetTenantConfig(): void
+    {
+        foreach ($this->getStorageToConfigMap() as $configKey) {
+            $this->app['config'][$configKey] = $this->originalConfig[$configKey];
+        }
+    }
+
+    public function getStorageToConfigMap(): array
+    {
+        return $this->app['config']['tenancy.storage_to_config_map'] ?? [];
+    }
+}

src/StorageDrivers/Database/DatabaseStorageDriver.php

@@ -80,7 +80,7 @@ class DatabaseStorageDriver implements StorageDriver
     public function createTenant(Tenant $tenant): void
     {
         $this->centralDatabase->transaction(function () use ($tenant) {
-            Tenants::create(['id' => $tenant->id, 'data' => '{}'])->toArray();
+            Tenants::create(['id' => $tenant->id, 'data' => json_encode($tenant->data)])->toArray();
 
             $domainData = [];
             foreach ($tenant->domains as $domain) {