暂存

vendor/illuminate/validation/Rules/Can.php

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+<?php
+
+namespace Illuminate\Validation\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+use Illuminate\Contracts\Validation\ValidatorAwareRule;
+use Illuminate\Support\Facades\Gate;
+
+class Can implements Rule, ValidatorAwareRule
+{
+    /**
+     * The ability to check.
+     *
+     * @var string
+     */
+    protected $ability;
+
+    /**
+     * The arguments to pass to the authorization check.
+     *
+     * @var array
+     */
+    protected $arguments;
+
+    /**
+     * The current validator instance.
+     *
+     * @var \Illuminate\Validation\Validator
+     */
+    protected $validator;
+
+    /**
+     * Constructor.
+     *
+     * @param  string  $ability
+     * @param  array  $arguments
+     */
+    public function __construct($ability, array $arguments = [])
+    {
+        $this->ability = $ability;
+        $this->arguments = $arguments;
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        $arguments = $this->arguments;
+
+        $model = array_shift($arguments);
+
+        return Gate::allows($this->ability, array_filter([$model, ...$arguments, $value]));
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return array
+     */
+    public function message()
+    {
+        $message = $this->validator->getTranslator()->get('validation.can');
+
+        return $message === 'validation.can'
+            ? ['The :attribute field contains an unauthorized value.']
+            : $message;
+    }
+
+    /**
+     * Set the current validator.
+     *
+     * @param  \Illuminate\Validation\Validator  $validator
+     * @return $this
+     */
+    public function setValidator($validator)
+    {
+        $this->validator = $validator;
+
+        return $this;
+    }
+}