Question

我需要使用setter方法在Validator类中设置$rules数组。

我需要使用setter设置$ rules规则，因为规则存储在数据库中。我需要使用Eloquent来查询数据库，以确定规则的外观。

我扩展了Validator类并添加了一个名为setCustomRules（）的方法。我在这个方法中注入了一个类，这个允许我使用Eloquent读取数据库来确定规则。

但是，当Laravel尝试验证时，我如何强制启动setCustomRules（）方法？必须首先执行此方法，以确保在验证发生之前设置规则。

这就是我所做的

<?php namespace Vend\Surveys\Validator\SurveyAnswers;

use Cartalyst\Support\Validator;

use Vend\Surveys\Repositories\SurveyAnswers\SurveyAnswerDefinedRepository;

class SurveyAnswerDefinedValidator extends Validator implements SurveyAnswerDefinedValidatorInterface {

    /**
     * {@inheritDoc}
     */
    protected $rules;

    /**
     * {@inheritDoc}
     */
    public function onUpdate()
    {

    }


    public function setCustomRules(SurveyAnswerDefinedRepository $rules)
    {

        foreach($rules as $rule){
            $this->rules[$rule->name] = $rule->spec;
        }

        //this should display the rules that will be used to validate the form
        dd($this->rules);
    }


}

被修改 根据The Alpha的回答，我创建了一个事件处理程序，可以让我创建规则。但不知道如何告诉Laravel现在验证。

这是我的EventHandler类

<?php namespace vend\Surveys\Handlers\SurveyAnswers;

use Illuminate\Events\Dispatcher;
use vend\Surveys\Models\SurveyAnswerDefined;
use Cartalyst\Support\Handlers\EventHandler as BaseEventHandler;

use vend\Surveys\Repositories\SurveyQuestions\SurveyQuestionsRepositoryInterface;

class SurveyAnswerDefinedEventHandler extends BaseEventHandler implements SurveyAnswerDefinedEventHandlerInterface {

    protected $rules = [];
    /**
     * {@inheritDoc}
     */
    public function subscribe(Dispatcher $dispatcher)
    {
        $dispatcher->listen('vend.surveys.surveyanswerdefined.creating', __CLASS__.'@creating');
        $dispatcher->listen('vend.surveys.surveyanswerdefined.created', __CLASS__.'@created');

        $dispatcher->listen('vend.surveys.surveyanswerdefined.updating', __CLASS__.'@updating');
        $dispatcher->listen('vend.surveys.surveyanswerdefined.updated', __CLASS__.'@updated');

        $dispatcher->listen('vend.surveys.surveyanswerdefined.deleted', __CLASS__.'@deleted');
    }

    /**
     * {@inheritDoc}
     */
    public function creating(SurveyQuestionsRepositoryInterface $questions, array $data)
    {
        $this->setRules($questions);
        dd($this->rules);
    }

    /**
     * {@inheritDoc}
     */
    public function created(SurveyAnswerDefined $surveyanswers)
    {
        $this->flushCache($surveyanswers);
    }

    /**
     * {@inheritDoc}
     */
    public function updating(SurveyAnswerDefined $surveyanswers, array $data)
    {

        $this->setRules($questions);
        dd($this->rules);
    }

    /**
     * {@inheritDoc}
     */
    public function updated(SurveyAnswerDefined $surveyanswers)
    {
        $this->flushCache($surveyanswers);
    }

    /**
     * {@inheritDoc}
     */
    public function deleted(SurveyAnswerDefined $surveyanswers)
    {
        $this->flushCache($surveyanswers);
    }

    /**
     * Flush the cache.
     *
     * @param  \vend\Surveys\Models\Surveyanswers  $surveyanswers
     * @return void
     */
    protected function flushCache(SurveyAnswerDefined $surveyanswers)
    {
        $this->app['cache']->forget('vend.surveys.surveyanswerdefined.all');

        $this->app['cache']->forget('vend.surveys.surveyanswerdefined.'.$surveyanswers->id);
    }


    private function setRules($questions){

        foreach($questions as $question){

            foreach($questions->controls as $control){

                $this->rules['control_' . $control->id] = $this->makeRules($control);
            }

        }
    }

    private function makeRules($control){

        $rules = [];

        if($control->is_required){
            $rules[] = 'required';
        }

        if($control->validation_rule == 'Text'){

            if($control->min_length){
                $rules[] = 'min:' . $control->max_length;
            }

            if($control->max_length){
                $rules[] = 'max:' . $control->max_length;
            }

        }


        if($control->validation_rule == 'Number'){

            $rules[] = 'numeric';

            if($control->min_value){
                $rules[] = 'min:' . $control->max_length;
            }

            if($control->max_value){
                $rules[] = 'max:' . $control->max_length;
            }

        }


    }
}

Answer 1

您可以（IMO）使用模型事件，例如：保存时（适用于创建和更新），您可以使用if (isspace(passCode.at(i)) != 0)方法调用规则来设置和验证规则：

setCustomRules

这应该在模型中，并且还有其他方式来注册事件，但我最喜欢这种方式。有关详细信息，请查看Laravel Website@Events

Answer 2

迟到的回答

您还可以使用Model Mutators并验证

e.g。

    String query= "SELECT " +columnName+ " FROM " + tableName+ " WHERE " + "eventId= " + eventiD+ " AND date LIKE = " + yourTargetDate

 try {

        cursor.moveToFirst();
        while (!cursor.isAfterLast()) {

       // Your code enter here 
       // example : event.setName(cursor.getString(cursor.getColumnIndex(Name)))

            cursor.moveToNext();

        }
    } finally {
        cursor.close();
        sqlDB.close();
    }

    return events;

如何在Laravel中使用setter方法设置验证规则？

2 个答案: