Extracting data from array in Yii 2

Question

I'm trying to get data from DB and show it in menu.

echo NavX::widget([
    'options' => ['class' => 'navbar-nav navbar-right'],
    'items' => [
        array_map(function ($model) {
            return [
                'label' => $model['param2'],
                'url' => ["/users/{$model['param3']}"],
            ];
        }, Model::find()->where(['userID' => 32])->asArray()->all()),
    ],
]);

But unfortunately this code is wrong, error says:

Array to string conversion

Is there any other way to fix it ?

You try to echo an array there. Put a foreach around it and echo the items in the array. — progsource
– progsource, Commented Apr 20, 2015 at 6:12
I cannot because I user this code while building menu tree in yii2. There is NavX::widget([ with it's 'options, items etc... — David
– David, Commented Apr 20, 2015 at 6:16

robsch · Accepted Answer · 2015-04-20 11:21:22Z

1

My guess, without testing:

echo NavX::widget([
    'options' => ['class' => 'navbar-nav navbar-right'],
    'items' => [
        array_map(function ($model) {
            return [
                'label' => $model['param2'],
                'url' => "/users/{$model['param3']}", // <--- string, not array!
            ];
        }, Model::find()->where(['userID' => 32])->asArray()->all()),
    ],
]);

answered Apr 20, 2015 at 11:21

robsch

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Comments

arogachev · Accepted Answer · 2015-04-20 06:23:00Z

0

One of the "Yii" way to do it will be using built-in ArrayHelper:

use yii\helpers\ArrayHelper;

...

$models = Model::find()->where(['userID' => 32])->asArray()->all();
$items = ArrayHelper::toArray($models, [
    'app\models\Model' => [    
        'label' => function ($model) {
            // Add label generation code here
        },
        'url' => function ($model) {
            // Add url generation code here
        }
    ],
]);

Then just pass the $items to your view with menu.

Official docs:

ArrayHelper::toArray()

answered Apr 20, 2015 at 6:23

arogachev

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3 Comments

arogachev Over a year ago

Show your code, especially how you are building label and url.

David Over a year ago

in label generation code I use - return $model['param2']; But after all this code when I echo $items I get - Array to string conversion

arogachev Over a year ago

Try without asArray().

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