remove state & city stuff, Add listener version200

app/Listeners/Updates/v2/Version200.php

@@ -0,0 +1,110 @@
+<?php
+
+namespace Crater\Listeners\Updates\v2;
+
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Database\Schema\Blueprint;
+use Crater\Listeners\Updates\Listener;
+use Crater\Listeners\Updates\v2\Version200;
+use Crater\Events\UpdateFinished;
+use Crater\Setting;
+use Crater\Address;
+
+class Version200 extends Listener
+{
+    const VERSION = '2.0.0';
+
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle(UpdateFinished $event)
+    {
+        if ($this->isListenerFired($event)) {
+            return;
+        }
+
+        // Replace state and city id to name
+        $this->replaceStateAndCityName();
+
+        // Drop states and cities foreign key
+        $this->dropForeignKey();
+
+        // Remove states and cities tables
+        $this->dropSchemas();
+
+        // Delete state & city models, migrations & seeders
+        $this->deleteFiles();
+
+        // Update Crater app version
+        $this->updateVersion();
+    }
+
+    private function replaceStateAndCityName() {
+        \Schema::table('addresses', function (Blueprint $table) {
+            $table->string('state')->nullable();
+            $table->string('city')->nullable();
+        });
+
+        $addresses = \Crater\Address::all();
+        foreach ($addresses as $add) {
+            $city = \Crater\City::find($add->city_id);
+            if($city) {
+                $add->city = $city->name;
+            }
+
+            $state = \Crater\State::find($add->state_id);
+            if($state) {
+                $add->state = $state->name;
+            }
+
+            $add->save();
+        }
+    }
+
+    private function dropForeignKey() {
+        \Schema::table('addresses', function (Blueprint $table) {
+            $table->dropForeign('addresses_state_id_foreign');
+            $table->dropForeign('addresses_city_id_foreign');
+            $table->dropColumn('state_id');
+            $table->dropColumn('city_id');
+        });
+    }
+
+    private function dropSchemas() {
+        \Schema::disableForeignKeyConstraints();
+
+        \Schema::dropIfExists('states');
+        \Schema::dropIfExists('cities');
+
+        \Schema::enableForeignKeyConstraints();
+    }
+
+    private function deleteFiles() {
+        \File::delete(
+            database_path('migrations/2017_05_06_172817_create_cities_table.php'),
+            database_path('migrations/2017_05_06_173711_create_states_table.php'),
+            database_path('seeds/StatesTableSeeder.php'),
+            database_path('seeds/CitiesTableSeeder.php'),
+            app_path('City.php'),
+            app_path('State.php')
+        );
+    }
+
+    private function updateVersion() {
+        Setting::setSetting('version', static::VERSION);
+    }
+}