added Block Migration Generator

Author: lijkbezorger

src/Bootstrap.php

@@ -2,9 +2,10 @@
 
 namespace nullref\cms;
 
-
 use yii\base\BootstrapInterface;
+use yii\base\Event;
 use yii\i18n\PhpMessageSource;
+use yii\gii\Module as Gii;
 use yii\web\Application as WebApplication;
 
 class Bootstrap implements BootstrapInterface
@@ -34,6 +35,16 @@ public function bootstrap($app)
                 'basePath' => '@nullref/cms/messages',
             ];
         }
+
+        if (YII_ENV_DEV) {
+            Event::on(Gii::className(), Gii::EVENT_BEFORE_ACTION, function (Event $event) {
+                /** @var Gii $gii */
+                $gii = $event->sender;
+                $gii->generators['relation-migration'] = [
+                    'class' => 'nullref\cms\generators\migration\Generator',
+                ];
+            });
+        }
     }
 
 }

src/generators/migration/Generator.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace nullref\cms\generators\migration;
+
+use Yii;
+use nullref\cms\models\Block;
+use yii\gii\CodeFile;
+use yii\gii\Generator as BaseGenerator;
+
+
+class Generator extends BaseGenerator
+{
+
+    public $block;
+
+    public static function getBlocks()
+    {
+        return Block::find()->all();
+    }
+
+
+    public function generate()
+    {
+        /** @var Block $selectedBlock */
+        $selectedBlock = Block::find()->where(['id' => $this->block])->one();
+        $time = new \DateTime();
+        $time = $time->getTimestamp();
+        $commands = "['id' => '$selectedBlock->id'," .
+            "'class_name' => '$selectedBlock->class_name'," .
+            "'config' => '{$selectedBlock->config}'," .
+            "'createdAt' => $time," .
+            "'updatedAt' => $time,]";
+
+        $files = [];
+        $name = 'm' . gmdate('ymd_Hi') . '00_block_' . $selectedBlock->id;
+        $code = $this->render('migration.php', [
+            'name' => $name,
+            'blockId' => $selectedBlock->id,
+            'commands' => $commands,
+        ]);
+        $files[] = new CodeFile(
+            Yii::getAlias('@app/migrations') . '/' . $name . '.php',
+            $code
+        );
+        return $files;
+    }
+
+    /**
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            [['block'], 'required'],
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getName()
+    {
+        return 'Block Migration Generator';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDescription()
+    {
+        return 'This generator generates a migration for block';
+    }
+
+}

src/generators/migration/default/migration.php

@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * @var $blockId string
+ * @var $commands string
+ */
+
+echo "<?php\n";
+?>
+
+use yii\db\Migration;
+use yii\db\Schema;
+use nullref\cms\models\Block;
+
+class <?= $name ?> extends Migration
+{
+
+public function up()
+{
+/** @var Block $existBlock */
+$existBlock = Block::findOne(['id' => '<?= $blockId ?>']);
+if( $existBlock ) {
+$oldId = 'old_' . $existBlock->id;
+$existBlock->id = $oldId;
+$existBlock->save();
+}
+$this->insert(Block::tableName(), <?= $commands ?>);
+}
+
+public function down()
+{
+$this->delete(Block::tableName(), ['id' => '<?= $blockId ?>']);
+/** @var Block $oldBlock */
+$oldBlock = Block::findOne(['id' => 'old_<?= $blockId ?>']);
+if( $oldBlock ) {
+$oldBlock->id = '<?= $blockId ?>';
+$oldBlock->save();
+}
+return true;
+}
+
+}

src/generators/migration/form.php

@@ -0,0 +1,13 @@
+<?php
+
+use nullref\cms\generators\migration\Generator;
+
+/* @var $this yii\web\View */
+/* @var $form yii\widgets\ActiveForm */
+/* @var $generator yii\gii\generators\module\Generator */
+?>
+<div class="migration-form">
+    <?php
+    echo $form->field($generator, 'block')->dropDownList(\yii\helpers\ArrayHelper::map(Generator::getBlocks(), 'id', 'id'));
+    ?>
+</div>