How to change the module icon to your own?

Question

Yii

Good day. I asked myself one question about my module, how to change the icon of the module to my own ?! Help me please. Do not write about admin.css, because after each system update, the file is overwritten!

Answer 1

$myModel = Mymodel::find()->where(['id'=>$someId])->one();
$data = yii\helpers\Json:decode($myModel->data);
echo $data['last_name'];

For convenience, you can make getters in the model

public function getLastName(){
    $data = yii\helpers\Json:decode($this->data);
    echo isset($data['last_name']) ? $data['last_name'] : 'не заданно';
}

and correspondingly

$myModel = Mymodel::find()->where(['id'=>$someId])->one();
echo $myModel->lastName;

Answer 2

Your data is in JSON format. You can use json_decode to work with this data further.

Answer 3

Judging by the screenshot, you have regular JSON in data. In Yii2, starting from version 2.0.14, there are tools for working with JSON database fields.
You can also try this behavior