How to add default value selected in dropdownlist with enum? - php

Question

I am new to yii2 and trying to get around. I have a dropdownlist whose values in the database are enum. So when the crud was created the dropdownlist had the enum values.
But I want to keep one value selected as default in the drop down list.
My form code is below:
<?= $form->field($model, 'priotiy_level')->dropDownList([ 'low' => 'Low', 'medium' => 'Medium', 'high' => 'High', ], ['prompt' => 'Select Priority Level']) ?>
Instead of the prompt, I want to have medium as a selected value. Can someone please help me with this?
Thank you.

Answer 1

After initialization of the $model instance in your controller set the attribute and then pass $model to view.
$model->priority_level = 'medium';

Answer 2

As #Bizley said, you need to set the value of the attribute in your Controller. In Yii2, you can do that with in one line:
public function actionSomething {
$model = new MyClass(['priotiy_level' => 'medium']);
// code
return $this->render('something', [
'model' => $model
]);
}

Answer 3

Additionally to previous answers you can also use default validator:
class SomeActiveRecord extends ActiveRecord {
// ...
function rules(){
return [
['priotiy_level', 'default', 'value' => 'medium']
// set "username" and "email" as null if they are empty
[['username', 'email'], 'default'],
// set "level" to be 1 if it is empty
['level', 'default', 'value' => 1],
];
}
}
More details see here: Handling Empty Inputs.
This code sets default value for the all actions/forms. If you need different default values on different forms, can be used also scenarios of validation.

Answer 4

Give class to your dropdownList :
Ex.
<?= $form->field($model, 'priotiy_level')->dropDownList([ 'low' => 'Low', 'medium' => 'Medium', 'high' => 'High', ], ['class' => 'priority_list','prompt' => 'Select Priority Level']) ?>
Give Default value using Java Script or Jquery
Ex.
<script>
$(".priority_list").val('medium'); // assing value using jquery
</script>
You can also use ID:
Ex.
<script>
var temp=document.getElementById('project-industry_id');
temp.value='medium';
</script>