Enh: `yii fixture` command now offers help if no arguments are provided instead of crashing

extensions/faker/FixtureController.php

@@ -14,13 +14,13 @@ use yii\helpers\FileHelper;
 use yii\helpers\VarDumper;
 
 /**
- * This command manage fixtures creations based on given template.
+ * This command creates fixtures based on a given template.
  *
  * Fixtures are one of the important paths in unit testing. To speed up developers
  * work these fixtures can be generated automatically, based on prepared template.
- * This command is a simple wrapper for the fixtures library [Faker](https://github.com/fzaninotto/Faker).
+ * This command is a simple wrapper for the [Faker](https://github.com/fzaninotto/Faker) library.
  *
- * You should configure this command as follows (you can use any alias, not only "fixture"):
+ * You should configure your application as follows (you can use any alias, not only "fixture"):
  *
  * ~~~
  * 'controllerMap' => [
@@ -30,7 +30,7 @@ use yii\helpers\VarDumper;
  * ],
  * ~~~
  *
- * To start using this command you need to be familiar (read guide) for the Faker library and
+ * To start using the command you need to be familiar (read guide) with the Faker library and
  * generate fixtures template files, according to the given format:
  *
  * ```php
@@ -45,7 +45,7 @@ use yii\helpers\VarDumper;
  * ];
  * ```
  *
- * If you use callback as a attribute value, then it will be called as shown with three parameters:
+ * If you use callback as an attribute value it will be called with the following three parameters:
  *
  * - `$faker`: the Faker generator instance
  * - `$index`: the current fixture index. For example if user need to generate 3 fixtures for user table, it will be 0..2.

framework/CHANGELOG.md

@@ -71,6 +71,7 @@ Yii Framework 2 Change Log
 - Enh: `Console::confirm()` now uses `Console::stdout()` instead of `echo` to be consistent with all other functions (cebe)
 - Enh: `yii\rbac\DbManager` migration now uses database component specified in component settings instead of always using default `db` (samdark)
 - Enh: Added `yii\base\Controller::renderContent()` (qiangxue)
+- Enh: `yii fixture` command now offers help if no arguments are provided instead of crashing (samdark)
 - Chg #3630: `yii\db\Command::queryInternal()` is now protected (samdark)
 - Chg #4277: `yii\grid\GridView` is no longer throwing an exception when results are empty and `columns` aren't defined (samdark) 
 - Chg #5508: Dropped the support for the `--append` option for the `fixture` command (qiangxue)

framework/console/controllers/FixtureController.php

@@ -91,6 +91,15 @@ class FixtureController extends Controller
     public function actionLoad()
     {
         $fixturesInput = func_get_args();
+        if ($fixturesInput === []) {
+            $this->stdout($this->getHelpSummary() . "\n");
+
+            $helpCommand = Console::ansiFormat("yii help fixture", [Console::FG_CYAN]);
+            $this->stdout("Use $helpCommand to get usage info.\n");
+
+            return self::EXIT_CODE_NORMAL;
+        }
+
         $filtered = $this->filterFixtures($fixturesInput);
         $except = $filtered['except'];