Fix spatie#615 - Use default config instead of env as connection

.gitignore

@@ -2,3 +2,4 @@ build
 composer.lock
 vendor
 .phpunit.result.cache
+.idea

README.md

@@ -150,6 +150,13 @@ return [
      * used by the Activity model shipped with this package.
      */
     'table_name' => 'activity_log',
+
+     /*
+      * This is the database connection that will be used by the migration and
+      * the Activity model shipped with this package. In case it's not set
+      * Laravel database.default will be used instead.
+      */
+    'database_connection' => env('ACTIVITY_LOGGER_DB_CONNECTION'),
 ];
 ```
 

config/activitylog.php

@@ -45,7 +45,8 @@
 
     /*
      * This is the database connection that will be used by the migration and
-     * the Activity model shipped with this package.
+     * the Activity model shipped with this package. In case it's not set
+     * Laravel database.default will be used instead.
      */
-    'database_connection' => env('ACTIVITY_LOGGER_DB_CONNECTION', env('DB_CONNECTION', 'mysql')),
+    'database_connection' => env('ACTIVITY_LOGGER_DB_CONNECTION'),
 ];

tests/CustomDatabaseConnectionActivityModelTest.php

@@ -26,6 +26,16 @@ public function it_uses_a_custom_database_connection()
         $this->assertEquals($model->getConnectionName(), 'custom_sqlite');
     }
 
+    /** @test */
+    public function it_uses_the_default_database_connection_when_the_one_from_configuration_is_null()
+    {
+        config()->set('activitylog.database_connection', null);
+
+        $model = new Activity();
+
+        $this->assertInstanceOf('Illuminate\Database\SQLiteConnection', $model->getConnection());
+    }
+
     /** @test */
     public function it_uses_the_database_connection_from_model()
     {