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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright  Copyright (c) Flipbox Digital Limited  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license    https://github.com/flipboxfactory/craft-ember/blob/master/LICENSE  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link       https://github.com/flipboxfactory/craft-ember  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace flipbox\ember\validators;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\base\Model;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\db\Query;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\validators\Validator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Flipbox Factory <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 1.0.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class LimitValidator extends Validator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var callable This can be a global function name, anonymous function, etc.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * The function signature must be as follows,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * ```php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * function foo(\yii\db\Query $query) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     // modify $query here  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     return $query;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * ```  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public $query;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var callable This can be a global function name, anonymous function, etc.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * The function signature must be as follows,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * ```php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * function foo(\yii\base\Model $model) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     // compute $limit here  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     return (int) $limit;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * ```  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public $limit;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @inheritdoc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param \yii\base\Model $model the data model to be validated  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $attribute the name of the attribute to be validated.  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function validateAttribute($model, $attribute)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (0 === ($limit = $this->getLimit($model))) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return; // no limit  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $count = (int)$this->getQuery($model)->count();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($count >= $limit) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->addError($model, $attribute, $this->message);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Model $model  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return int  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function getLimit(Model $model): int  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return (int)call_user_func($this->limit, $model);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Model $model  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return Query  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function getQuery(Model $model): Query  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return call_user_func($this->query, $model);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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