How to concatenate two columns into an autocomplete field in yii2? - yii

Question

i have a auto complete field in my view whose code is as follows
<?php
$data = Members::find()
->select(['first_name as value', 'first_name as label','id as id'])
->asArray()
->all();
echo 'Name' .'<br>';
echo AutoComplete::widget([
'name' => 'member_name',
'clientOptions' => [
'source' => $data,
'minLength'=>'3',
'autoFill'=>true,
'select' => new JsExpression("function( event, ui ) {
$('#receipt-member_id').val(ui.item.id);//#receipt-member_id is the id of hiddenInput.
}")],
]);
?>
auto complete works correctly, it shows the first name of all the 'members'.
But there can be many guys with similar first name, so what i want is to concatenate first_name and last_name. In normal dropdowns it can be done as follows
<?php
$models1 = Members::find()->all();
$data = array();
foreach ($models1 as $model1)
$data[$model1->id] = $model1->first_name . ' '. $model1->last_name;
echo $form->field($model, 'member_id')->dropDownList(
$data,
['prompt'=>'Select...']);
?>
how can i do this with the autocomplete widget?

Answer 1

try this way
$data = Members::find()
->select(['concat(first_name,last_name) as value', 'first_name as label','id as id'])
->asArray()
->all();

Answer 2

If you need space between 2 fields, use this:
$data = Members::find()
->select(['concat(first_name, SPACE(1), last_name) as name', 'first_name as label','id as id'])
->asArray()
->all();
SPACE() method will generate space accord the specific number you entered, for you :D