ValidatesRequests.php

TLDR

This file provides a trait called ValidatesRequests that contains methods for validating requests in the Laravel framework.

Methods

validateWith

This method runs the validation routine against the given validator or array of validation rules. It accepts a validator or an array of rules and an optional request object. It returns an array of validated input.

validate

This method validates the given request with the given rules. It accepts a request object, an array of rules, an optional array of custom error messages, and an optional array of attribute names. It returns an array of validated input.

validateWithBag

This method validates the given request with the given rules and assigns the error messages to the specified error bag. It accepts a string representing the error bag, a request object, an array of rules, an optional array of custom error messages, and an optional array of attribute names. It returns an array of validated input.

getValidationFactory

This method returns an instance of the validation factory.

<?php

namespace Illuminate\Foundation\Validation;

use Illuminate\Contracts\Validation\Factory;
use Illuminate\Foundation\Precognition;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;

trait ValidatesRequests
{
    /**
     * Run the validation routine against the given validator.
     *
     * @param  \Illuminate\Contracts\Validation\Validator|array  $validator
     * @param  \Illuminate\Http\Request|null  $request
     * @return array
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function validateWith($validator, Request $request = null)
    {
        $request = $request ?: request();

        if (is_array($validator)) {
            $validator = $this->getValidationFactory()->make($request->all(), $validator);
        }

        if ($request->isPrecognitive()) {
            $validator->after(Precognition::afterValidationHook($request))
                ->setRules(
                    $request->filterPrecognitiveRules($validator->getRulesWithoutPlaceholders())
                );
        }

        return $validator->validate();
    }

    /**
     * Validate the given request with the given rules.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  array  $rules
     * @param  array  $messages
     * @param  array  $attributes
     * @return array
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function validate(Request $request, array $rules,
                             array $messages = [], array $attributes = [])
    {
        $validator = $this->getValidationFactory()->make(
            $request->all(), $rules, $messages, $attributes
        );

        if ($request->isPrecognitive()) {
            $validator->after(Precognition::afterValidationHook($request))
                ->setRules(
                    $request->filterPrecognitiveRules($validator->getRulesWithoutPlaceholders())
                );
        }

        return $validator->validate();
    }

    /**
     * Validate the given request with the given rules.
     *
     * @param  string  $errorBag
     * @param  \Illuminate\Http\Request  $request
     * @param  array  $rules
     * @param  array  $messages
     * @param  array  $attributes
     * @return array
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function validateWithBag($errorBag, Request $request, array $rules,
                                    array $messages = [], array $attributes = [])
    {
        try {
            return $this->validate($request, $rules, $messages, $attributes);
        } catch (ValidationException $e) {
            $e->errorBag = $errorBag;

            throw $e;
        }
    }

    /**
     * Get a validation factory instance.
     *
     * @return \Illuminate\Contracts\Validation\Factory
     */
    protected function getValidationFactory()
    {
        return app(Factory::class);
    }
}