通过在控制器中添加新数据来动态更新验证规则 [英] Update dynamically validation rules by adding new data in the controller
问题描述
我正在开发一个基于Web的应用程序，技术堆栈为: VueJS ，用于表示层， Laravel(PHP)，用于 RESTFUL API 服务，以及名为 neo4j 的基于nosql图的数据库.这是问题的上下文，我有一个名为 Post 的模型，并且在此定义的属性将共享所有帖子类型，因此它们所有人都将拥有它:
I'm working on a web based app,and the Tech stack is : VueJS,for the presentation layer, Laravel (PHP) for RESTFUL API service,and a nosql graph based database called neo4j. Here is the problem context, I have a model called Post, and attributes that are defined here are shared all the post type,so all of them will have it:
use NeoEloquent;
use Spatie\Sluggable\HasSlug;
use Spatie\Sluggable\SlugOptions;
use Vinelab\NeoEloquent\Eloquent\SoftDeletes;
class Post extends NeoEloquent
{
protected $label = 'Post';
protected $dates = ['created_at', 'updated_at', 'deleted_at'];
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'title',
'slug',
'body',
'status',
'image',
'published_at',
'read_time',
'isModerate',
'link',
'external_id'
];
/**
protected $hidden = ['remember_token'];
/**
* relations
*/
public function authors()
{
return $this->belongstoMany('App\User', 'AUTHOR');
}
public function getSlugOptions(): SlugOptions
{
return SlugOptions::create()->generateSlugsFrom('title')->saveSlugsTo('slug');
}
//Post type
public function contentType(){
return $this->hasOne('App\ContentType','IS_OF_TYPE');
}
}
PostType :这里的类型可以是文件，链接，事件等.例如: [name=>'Event','description'=>'description','slug'=>'event']
PostType : Here the type can be a File,Link,an Event,etc.Eg : [name=>'Event','description'=>'description','slug'=>'event']
class PostType extends NeoEloquent
{
protected $label='ContentType';
protected $dates=['created_at','updated_at','deleted_at'];
protected $fillable=[
"name",
"description",
"slug"
];
//Ce input contentype sera associe a plusieurs input fields
public function customFields(){
return $this->belongsToMany('App\CustomField',"HAS_FIELD");
}
public function post(){
return $this->belongsToMany('App\Post','IS_OF_TYPE');
}
}
最后是 CustomField 模型:
class CustomField extends NeoEloquent
{
protected $label="CustomType";
protected $dates=["created_at","updated_at","deleted_at"];
protected $fillable=[
"field_name",
"field_type",
"field_order",
"validation_rules"
];
public function contentTypes(){
return $this->belongsToMany('App\CustomField','HAS_FIELD');
}
}
因此，流程如下:
1-在UI中，当用户首次打开帖子时，创建帖子 Form ，他是根据Post模型的fillable属性定义的要填充的通用字段.为此，已经有了一个Form验证请求定义如下:
So here is the flow:
1 - In the UI when user first open the post create post Form ,he as the common fields to fill as defined in fillable propertie of Post model.And for that,already have a Form Request for validation defines like this :
class StorePost extends FormRequest
{
public function authorize()
{
return true;
}
public function rules()
{
return [
'title' => 'required|string|min:1',
'body' => 'required',
'status' => 'required',
'image' => 'sometimes|image',
'published_at' => 'required',
'link' => 'required_if:type,==,RSS|required_if:type,==,LINK',
'external_id' => 'sometimes'
];
}
}
2-以相同的形式，用户在<select>中具有type字段，该字段将加载database(throug ajax)中ContentType模型中的所有内容类型.Eg : Event,Link,File,...，并且一旦他选择了另一个类型request(ajax)去检索CustomField.请注意，此处的自定义字段表示对于类型Event的字段，其格式如下['field_name'=>'name','field_type'=>'string','field_order'=>'1',validation_rules=>'required|max:200']等.我使用这些字段属性来动态构建<Front-End中的c12>，并且一旦用户填写表单并在后端服务器中发送数据:我不知道如何处理验证.我首先要做的是创建一个Form Request for我所有的自定义inputs field，但我不知道是否要添加20，而不是仅仅添加Event,File and Link Post types.我不会创建20条验证规则.这时我的控制器仅知道如何验证"Post" :
2 - In the same form,the user has type field in a <select> that loads all the content types from ContentType model in the database(throug ajax).Eg : Event,Link,File,... and once he chooses a type another request(ajax) goes to retrieve the the CustomField.Note that here custom field mean that,for a type Event field are send in the following format ['field_name'=>'name','field_type'=>'string','field_order'=>'1',validation_rules=>'required|max:200'],etc.. and i use those field attributes to dynamically build my PostType fields in the Front-End,and once the user fills the form and send data in the backend server:I don't have the idea of how to handle validation.What i did first and it worked was to create a Form Request for all my custom inputs field,but no i imagine if instead of just having Event,File and Link Post types i add 20.I won't create 20 validation rules.At this point my controller only knows how to validate 'Post' like this :
public function store(StorePost $request)
{
$data = $request->validated();
...
}
我想做的是根据来自前端的数据用新的字段和新的规则更新现有的StorePost验证.所以我不知道如何更新现有的Form Request定义在控制器的Requests文件夹中，并根据前端提供的数据，根据前端的定义和填充字段创建新的验证规则.我有个主意，包括根据以下内容提取所有input_fields验证规则前端发送给我的帖子类型，然后更新现有的验证规则.
What i would like to do is the update the existe StorePost validation with new fields and new rules according to data comming from the front-end.So i don't have any idea of how to update the existing Form Request define in the Requests folder in my controller,and based on data that comes from front-end created new validation rules based on defines and filled fields on the front -end.I've got an idea,the consiste of fetching all input_fields validation rules based on posttypes that front-end sends to me,and then update the existing validation rules.
注意:我定义冲突关系的方式与Eloquent不同，因为我正在使用实现neo4j数据库的Neoloquent.
Note : The way that i've defined relashionship is different with Eloquent because i'm using Neoloquent that implements neo4j database.
推荐答案
您可以使用请求中的数据动态构建验证规则:
You can dynamically build your validation rules using data from the request:
use Illuminate\Http\Request;
class StorePost extends FormRequest
{
public function authorize()
{
return true;
}
public function rules(Request $request)
{
$rules = [
'title' => 'required|string|min:1',
'body' => 'required',
'status' => 'required',
'image' => 'sometimes|image',
'published_at' => 'required',
'link' => 'required_if:type,==,RSS|required_if:type,==,LINK',
'external_id' => 'sometimes'
];
if($typeSlug = $request->get('type'))
{
$type = PostType::where('slug', $typeSlug)->with('customFields');
// map custom fields into a `['name' => 'rules']` format
$customFieldRules = $type->customFields->mapWithKeys(function($customField) {
return [$customField->field_name => $customField->validation_rules];
});
$rules = array_merge($rules, $customFieldRules);
}
return $rules;
}
}
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