Problem with remove node: Undefined variable: keyAttribute

[neelamharne21]

when i try to delete node it shows error msg : Undefined variable: keyAttribute

[strtob]

what was the problem?

[moltam]

@strtob The problem for me was that the model generated by Gii overwrited the rules() method. Just remove the rules() method from your generated model, and leave the validation for the extension.

If you generate the model, the following rules are generated:

public function rules()
{
    return [
        [['root', 'lft', 'rgt', 'lvl', 'icon_type', 'active', 'selected', 'disabled', 'readonly', 'visible', 'collapsed', 'movable_u', 'movable_d', 'movable_l', 'movable_r', 'removable', 'removable_all'], 'integer'],
        [['name'], 'required'],
        [['name'], 'string', 'max' => 60],
        [['icon'], 'string', 'max' => 255],
    ];
}

The TreeTrait treats some of these integer fields as boolean (for example: $child->active = true;), and the validation will fail because of the integer rule. So removing the unnecessary rules() method from your model solves the problem.

@kartik-v I think there is indeed an undefined variable in the TreeTrait. There is an extract before this (extract($module->treeStructure);), but the keyAttribute, and nameAttribute is declared in the $module->dataStructure array.

[kartik-v]

This is resolved via the fix above.