#轻松学会Laravel-扩展篇
创建资源模型控制器
```
php artisan make:controller PhotoController --resource --model=Photo
```
发送 PUT，PATCH 或者 DELETE 请求，你需要添加一个 _method 隐藏域字段来伪造 HTTP 动作。method_field 辅助函数可以为你创建这个字段
```
{{ method_field('PUT') }}
```
任何情况下在你的应用程序中定义 HTML 表单时都应该包含 CSRF 令牌隐藏域，这样 CSRF 保护中间件才可以验证请求
```
{{ csrf_field() }}
```
资源控制器 删除
```
<a href="javascript:;" class="delete" data-id="{{ $student->id }}">删除</a>
<script>
$(function(){
$.ajaxSetup({
headers: {'X-CSRF-TOKEN': '{{ csrf_token() }}'}
});
$('.delete').on('click', function () {
if(confirm('确认要删除吗？')){
$.ajax({
type: 'post',
url: '/student/' + $(this).data('id'),
data: {_method: 'delete'},
dataType: 'json',
success: function (data, status, xhr) {
if(data.ServerNo == 'SN000'){
alert(data.ResultData);
location.href = '/student';
}else{
alert(data.ResultData);
location.href = '/student';
}
},
async: true
});
}
});
});
</script>
```
###表单验证
```
// 控制器验证
$this->validate($request, [
'Student.name' => 'required|min:2|max:20',
'Student.age' => 'required|integer',
'Student.sex' => 'required|integer'
], [
'required' => ':attribute 为必填项',
'min' => ':attribute 长度不符合要求',
'integer' => ':attribute 必须为整数'
], [
'Student.name' => '姓名',
'Student.age' => '年龄',
'Student.sex' => '性别',
]);
// Validator类验证
/*$validator = \Validator::make($request->input(), [
'Student.name' => 'required|min:2|max:20',
'Student.age' => 'required|integer',
'Student.sex' => 'required|integer'
], [
'required' => ':attribute 为必填项',
'min' => ':attribute 长度不符合要求',
'integer' => ':attribute 必须为整数'
], [
'Student.name' => '姓名',
'Student.age' => '年龄',
'Student.sex' => '性别',
]);
if($validator->fails()){
return redirect()->back()->withErrors($validator)->withInput();
}*/
```
```
<!-- 成功提示框 -->
@if(\Session::has('success'))
<div class="alert alert-success alert-dismissible" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<strong>成功!</strong> {{ Session::get('success') }}
</div>
@endif
<!-- 失败提示框 -->
@if(\Session::has('error'))
<div class="alert alert-danger alert-dismissible" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<strong>失败!</strong> {{ Session::get('error') }}
</div>
@endif
```
```
<!-- 所有的错误提示 -->
@if(count($errors))
<div class="alert alert-danger">
<ul>
<li>{{ $errors->first() }}</li>
</ul>
</div>
<div class="alert alert-danger">
<ul>
@foreach($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
```
```
{{ $errors->first('Student.name') }}
{{ $errors->first('Student.age') }}
{{ $errors->first('Student.sex') }}
```
模型中定义sex()方法
```
const SEX_UN = 10;
const SEX_BOY = 20;
const SEX_GRIL = 30;
public function sex($ind = null){
$arr = [
self::SEX_UN => '未知',
self::SEX_BOY => '男',
self::SEX_GRIL => '女'
];
if($ind != null){
return array_key_exists($ind, $arr) ? $arr[$ind] : $arr[self::SEX_UN];
}
return $arr;
}
```
@parent继承父模版内容
```
<!-- 尾部 -->
@section('footer')
<div class="jumbotron" style="margin:0;">
<div class="container">
<span> @2016 imooc</span>
</div>
</div>
@show
```
```
@section('footer')
@parent
新内容
@stop
```
