在CakePHP中添加内联JavaScript以形成输入元素

Question

我正在尝试这样做：

echo $this->Form->input("filter.wijk", array(
    'onChange' => 'this.form.submit()', 
    'type' => 'select', 
    'multiple' => 'checkbox', 
    'options' => $wijkOpties, 
    'label' => false)
);

但是， onChange属性不会出现在结果HTML中。 FormHelper::input的文档告诉我们以下内容：

* ### Options
*
* See each field type method for more information. Any options that are part of
* $attributes or $options for the different **type** methods can be included in `$options` for input().i
* Additionally, any unknown keys that are not in the list below, or part of the selected type's options
* will be treated as a regular html attribute for the generated input.

我是否以错误的方式解释了最后一句话？

Answer 1

您有2个选择：

1-放弃复选框，仅获得一个普通的选择列表元素/框：

echo $this->Form->input("filter.wijk", array(
                        'onChange' => 'this.form.submit()', 
                        'type' => 'select', 
                        'multiple' => true, 
                        'options' => $wijkOpties, 
                        'label' => false)
);

2-对有效的复选框列表进行变通（类似）：

$i = 0;
foreach($wijkOpties as $value => $option){
    echo $this->Form->input('filter.wijk.' . $i++, array(
                                'onChange' => 'this.form.submit()',
                                'label' => $option,
                                'value' => $value,
                                'type' => 'checkbox',
    ));
}

`