Yii2 grid filter dropdown additional option to arrayHelper

Question

I would like to add an aggregating option ("All options" in the example) to a dropdown filter in grid, that covers all other options, and looks like this:

All options
Option1
Option2
Option3
...

I have tried this way:

grid:

'filter' => ['All options', yii\helpers\ArrayHelper::map(app\models\RelatedModel::find()->all(), 'id', 'name'),]

ModelSearch:

if ($this->RelatedModelId == 'All options') {
        $query->andFilterWhere(['in', 'RelatedModelId', \yii\helpers\ArrayHelper::getColumn(RelatedModel::find()->all(), 'id')]);
    } else {
        $query->andFilterWhere(['RelatedModelId' => $this->RelatedModelId ,]);
    };

It works (maybe not the most beautiful solution of the world, but it's okay for me at the moment). The only thing that's disturbing me, is this 0 (or 1 sometimes, depending on how I change code) in the dropdown list:

All options
0
    Option1
    Option2
    Option3
    ...

And I know it's because of the brackets [] in filter ('filter' => [...]), but at the moment this is the only way I could achieve the functionality I need. I have no idea how to make it work witout the brackets. Is there a simple way (to put an additional tiny little option somwhow, somewhere maybe) not to show this 0 or do I have to do it completely different? It's not really a big problem that is looks like this, but would be better not to see it. Or can I put this All into the map function?

'filter' => yii\helpers\ArrayHelper::map(array_merge(['All options', app\models\RelatedModel::find()->all()]), 'id', 'name'),

I've also tried array_merge() but without a success.

Any ideas? Thanks in advance!

arogachev · Accepted Answer · 2016-03-09 04:02:33Z

2

This:

'filter' => \yii\helpers\ArrayHelper::map(\app\models\RelatedModel::find()->all(), 'id', 'name'),

will already render empty option (with no text) for resetting choice in this drop-down list.

For search just set:

$this->andWhere(['your_field_id' => $this->your_field_id]);

in your search model and you ready to go.

Also don't forget to add this attribute as safe attribute in rules section:

public function rules()
{
    return [
        ['your_field_id', 'safe'],
    ],
}

You can see an example in CRUD generator.

If you want to customize shown text, append prompt option to existing yii\grid\DataColum $filterInputOptions:

'filterInputOptions' => ['class' => 'form-control', 'id' => null, 'prompt' => 'All'],

Also by putting this in view you are violating MVC principle:

\yii\helpers\ArrayHelper::map(\app\models\RelatedModel::find()->all(), 'id', 'name'),

Either call this in a controller and pass as parameter to view or wrap in some getList() method.

answered Mar 9, 2016 at 4:02

arogachev

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1 Comment

user2511599 Over a year ago

Hi Master Arogachev, thanks for replying, but I'm afraid I haven't expressed myself clear enough then. I do not need an additional empty option, but an option what covers all other options. Violating? It's already so in Giiant, that's why I do it also this way.

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