How to specify HTML attributes for options of a select tag that is created using laravel form builder?

问题

You can set HTML attributes for the <select> itself but what about the <options>?

Form::select('name', $options, null, ['class'=>'form-control'])

回答1:

First parameter is the id and name attribute, second param is the array with values of <select>, third parameter is selected option and fourth parameter is array with HTML attributes. If you want to set name, class or another HTML attribute simply put it into the array (can't set id with the array, must use first param):

// View
{{ Form::select('selectname', $selectname, Input::old('selectname'), array('class'=>'form-control', 'name'=>'modified_name')) }}

EDIT1: I misunderstood the question, the only way to set HTML attributes to <option> is using Form::macro and build <option> tags dynamically.

EDIT2: You should build something like this:

Form::macro('test', function($name, $list = array(), $options = array())
{
$build = array();

foreach ($list as $key => $value)
{
    $build[] = sprintf('<option id="%s" name="%s" class="%s" value="%s">%s</option>', $name, $name, $options['class'], $value->id, $value->name);
}
return join("\n", $build);
});

And then use it into your view:

{{ Form::open(array('url' => 'test')) }}
    {{ Form::test('test', $list, ['class' => 'form-control']) }}
{{ Form::close() }}

Result:

<option id="test" name="test" class="form-control" value="1">Test1</option>
<option id="test" name="test" class="form-control" value="2">Test2</option>
<option id="test" name="test" class="form-control" value="3">Test3</option>

You can add <select> tags into macro and pass some arguments to the function for HTML attributes of it or simply add <select> tags to the view with proper attributes.

来源：https://stackoverflow.com/questions/25484213/how-to-specify-html-attributes-for-options-of-a-select-tag-that-is-created-using

标签

php

laravel

formbuilder