php – 如何在Laravel中设置禁用选择选项?
发布时间:2020-12-14 19:56:18 所属栏目:大数据 来源:网络整理
导读:在控制器功能中,我提取了我已经使用过的所有属性和属性. 所有属性: $attributeNames = array('' = 'Select Attribute Name') + AttributeName::lists('name','id'); 已经采取的属性: $selectedAttributeNames = $xmlDocument-masterInformation-masterAttr
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在控制器功能中,我提取了我已经使用过的所有属性和属性.
所有属性: $attributeNames = array('' => 'Select Attribute Name') + AttributeName::lists('name','id');
已经采取的属性: $selectedAttributeNames = $xmlDocument->masterInformation->masterAttributes; 如何将selectedAttributeNames设为禁用? 这是var_dump($selectedAttributeNames)的输出: object(Illuminate Database Eloquent Collection) #312 (1) {
["items":protected]= > array(1) {
[0] => object(MasterAttribute) #310 (20) {
["table":protected]= > string(16) "master_attribute"
["guarded": protected] => array(1) {
[0] => string(2) "id"
}
["connection": protected] => NULL["primaryKey": protected] => string(2) "id"
["perPage": protected] => int(15)["incrementing"] => bool(true)["timestamps"] => bool(true)["attributes": protected] => array(7) {
["id"] => int(1)["xpath"] => string(17)
"this is the xpath"
["attribute_name_id"] => int(1)["master_information_id"] => int(6)["default_value"] => string(25) "This is the default value"
["created_at"] => string(19) "2014-07-19 17:53:55"
["updated_at"] => string(19) "2014-07-19 17:53:55"
}
["original": protected] => array(7) {
["id"] => int(1)["xpath"] => string(17) "this is the xpath"
["attribute_name_id"] => int(1)["master_information_id"] => int(6)["default_value"] => string(25) "This is the default value"
["created_at"] => string(19) "2014-07-19 17:53:55"
["updated_at"] => string(19) "2014-07-19 17:53:55"
}
["relations": protected] => array(0) {}
["hidden": protected] => array(0) {}
["visible": protected] => array(0) {}
["appends": protected] => array(0) {}
["fillable": protected] => array(0) {}
["dates": protected] => array(0) {}
["touches": protected] => array(0) {}
["observables": protected] => array(0) {}
["with": protected] => array(0) {}
["morphClass": protected] => NULL["exists"] => bool(true)
}
}
}
不幸的是,Laravel的Form :: select()辅助方法没有提供一种方法来进入为select选项构建html的过程.
话虽如此,你有几种方法可以解决它: 第一:您可以创建自己的表单宏.这是过度简化的版本 Form::macro('select2',function($name,$list = [],$selected = null,$options = [],$disabled = []) {
$html = '<select name="' . $name . '"';
foreach ($options as $attribute => $value) {
$html .= ' ' . $attribute . '="' . $value . '"';
}
$html .= '">';
foreach ($list as $value => $text) {
$html .= '<option value="' . $value . '"' .
($value == $selected ? ' selected="selected"' : '') .
(in_array($value,$disabled) ? ' disabled="disabled"' : '') . '>' .
$text . '</option>';
}
$html .= '</select>';
return $html;
});
你可以在start.php中注册. 鉴于您首先将已经选择的项目的Illuminate Collection转换为一个简单的键组 $selectedAttributeNames = $xmlDocument->masterInformation->masterAttributes; $disabled = $selectedAttributeNames->toArray(); 并且在您的视图中可以使用$attributeNames和$disabled,您可以像这样使用自定义宏 {{ Form::select2('mydropdown',$attributeNames,null,[],$disabled) }}
第二:您可以从您的选项数组中删除(例如使用array_diff_key())已选择的项目,而不是禁用它们: {{ Form::select('mydropdown2',array_diff_key($attributeNames,$disabled),[]) }}
第三:在您的视图中,您可以吐出需要禁用的已选择属性的JavaScript数组,并使用jQuery或vanilla JS执行其余客户端. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
