FEATURE: add unique code to widgets

database/migrations/2016_10_11_135756_AddUniqueCodeToWidgets.php

@@ -0,0 +1,66 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+
+class AddUniqueCodeToWidgets extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('widgets', function (Blueprint $table) {
+            $table->string('container_id')
+                  ->nullable(true)
+                  ->default(null)
+                  ->after('name');
+            $table->string('container_class')
+                  ->nullable(true)
+                  ->after('name')
+                  ->default(null);
+
+            $table->unique(['language', 'container_id']);
+        });
+
+        // migrate data
+        $widgets = \App\Models\Widget::all();
+        foreach ($widgets as $widget) {
+            $widget->settings = json_decode($widget->settings);
+            if (isset($widget->settings->containerClass)) {
+                $widget->container_class = $widget->settings->containerClass;
+                unset($widget->settings->containerClass);
+                $widget->settings = json_encode($widget->settings);
+                $widget->save();
+            }
+        }
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('widgets', function (Blueprint $table) {
+            $table->dropUnique('widgets_language_container_id_unique');
+        });
+
+        // migrate data
+        $widgets = \App\Models\Widget::all();
+        foreach ($widgets as $widget) {
+            $widget->settings = (object)json_decode($widget->settings);
+            $widget->settings->containerClass = $widget->container_class;
+            $widget->settings = json_encode($widget->settings);
+            $widget->save();
+        }
+
+        Schema::table('widgets', function (Blueprint $table) {
+            $table->dropColumn('container_id');
+            $table->dropColumn('container_class');
+        });
+    }
+}