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Yii2 extension to generate auto number
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Auto Number Extension for Yii 2

Yii2 extension to genarete formated autonumber. It can be used for generate document number.


The preferred way to install this extension is through composer.

Either run

php composer.phar require --prefer-dist mdmsoft/yii2-autonumber "~1.0"

or add

"mdmsoft/yii2-autonumber": "~1.0"

to the require section of your composer.json file.


Prepare required table by execute yii migrate.

yii migrate --migrationPath=@mdm/autonumber/migrations

if wantn't use db migration. you can create required table manually.

CREATE TABLE auto_number (
    "group" varchar(32) NOT NULL,
    "number" int,
    optimistic_lock int,
    update_time int,
    PRIMARY KEY ("group")

Once the extension is installed, simply modify your ActiveRecord class:

public function behaviors()
	return [
			'class' => 'mdm\autonumber\Behavior',
			'attribute' => 'sales_num', // required
			'group' => $this->id_branch, // optional
			'value' => 'SA.'.date('Y-m-d').'.?' , // format auto number. '?' will be replaced with generated number
			'digit' => 4 // optional, default to null. 

// it will set value $model->sales_num as 'SA.2014-06-25.0001'

Instead of behavior, you can use this extension as validator

public function rules()
    return [
        [['sales_num'], 'autonumber', 'format'=>'SA.'.date('Y-m-d').'.?'],
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