add Image and Upload helper classes

console/migrations/m151127_152631_add__table__image.php

@@ -0,0 +1,43 @@
+<?php
+
+use yii\db\Schema;
+use yii\db\Migration;
+
+class m151127_152631_add__table__image extends Migration
+{
+public function up()
+    {
+
+    	$tableOptions = null;
+    	if ($this->db->driverName === 'mysql') {
+    		// http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
+    		$tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
+    	}
+    	
+    	$this->createTable('{{%image}}', [
+    			'id_image' => $this->primaryKey(),
+    			'path' => $this->string(255),
+    			'created_at' => $this->dateTime()->notNull(),
+    			'updated_at' =>  $this->dateTime()->notNull(),
+    	], $tableOptions);
+    	
+    }
+
+    public function down()
+    {
+        echo "m151127_152631_add__table__image cannot be reverted.\n";
+
+        return false;
+    }
+
+    /*
+    // Use safeUp/safeDown to run migration code within a transaction
+    public function safeUp()
+    {
+    }
+
+    public function safeDown()
+    {
+    }
+    */
+}

console/migrations/m151127_214503_alter__table__customer__add__column__id_image.php

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+<?php
+
+use yii\db\Schema;
+use yii\db\Migration;
+
+class m151127_214503_alter__table__customer__add__column__id_image extends Migration
+{
+    public function up()
+    {
+    	$this->addColumn("customer", "id_image", "int");
+    }
+
+    public function down()
+    {
+        echo "m151127_214503_alter__table__customer__add__column__id_image cannot be reverted.\n";
+
+        return false;
+    }
+
+    /*
+    // Use safeUp/safeDown to run migration code within a transaction
+    public function safeUp()
+    {
+    }
+
+    public function safeDown()
+    {
+    }
+    */
+}