add checkbox in select2 to dropdown list in yii2

Question

here is code of dropdownlist.. but when I select multiple values it gives validation error "task must be string"

how to save multiple values (array)?

   <?php echo $form->field($model, 'task')->widget(Select2::classname(), [
                            'data' => $companiesList,
                            'options' => ['placeholder' => 'Select company...','multiple' => true],
                            'pluginOptions' => ['allowClear' => true,],
                        ]);?>

how to give checkbox for each value in list?

in model rules set [['task'], 'safe'] from [['task'], 'string']. — Insane Skull
– Insane Skull, Commented Dec 27, 2017 at 13:01
PHP Warning – yii\base\ErrorException quoted_printable_encode() expects parameter 1 to be string, array given — Darsh
– Darsh, Commented Dec 27, 2017 at 13:12
quoted_printable_encode comes from your wrong rule arr paste all rule arr here to help more — kiamoz
– kiamoz, Commented Oct 26, 2020 at 9:33

kiamoz · Accepted Answer · 2017-12-27 14:19:27Z

0

you have to save multiple values in many-to-many tabels ,

after changing the rules to [['task'], 'safe'] from Mr Skull answer , you have to get all data like this :

foreach ( $model->task as $single_task){

$task = new _many_to_many_model();
$task->side_1_id = single_task;
$task->side_2_id = $model->id;
$task->save();

}

after this comment :

all selected value should go in single column

you don't need to use many-to-many ! I use "-" as delimiter,

$all_taskes = "";
    foreach ( $model->task as $single_task){

    $all_taskes .= single_task."-";

    }

$model->task = all_taskes;

edited Dec 27, 2017 at 14:19

answered Dec 27, 2017 at 13:09

kiamoz

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9 Comments

kiamoz Over a year ago

in controller after $model->save() , but it's important to where do you want to save multiple data ? and let me know in single column or many-to-many ?

Darsh Over a year ago

all selected value should go in single column

kiamoz Over a year ago

Okey , let see my next edit to answer and put in in your controller .. forget the many to many ...

kiamoz Over a year ago

check it out , and see part 2

Darsh Over a year ago

error...... PHP Warning – yii\base\ErrorException quoted_printable_encode() expects parameter 1 to be string, array given

|

kiamoz · Accepted Answer · 2020-10-26 09:32:23Z

0

Hi there ,

       $model->save();
       foreach ($model->task as $cat) {
    
                    $m = new \common\models\_many_to_many_model();
                    $m->ads_id = $model->id; // change in to yorr base model ID and use it's put after $model->save
                    $m->category_id = $cat; // category_id is your many to many model filed id 
                    $m->save();
       }

answered Oct 26, 2020 at 9:32

kiamoz

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