39 lines
783 B
PHP
39 lines
783 B
PHP
<?php
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namespace SimpleValidator\Validators;
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use PDO;
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class Exists extends Base
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{
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private $pdo;
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private $key;
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private $table;
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public function __construct($field, $error_message, PDO $pdo, $table, $key = '')
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{
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parent::__construct($field, $error_message);
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$this->pdo = $pdo;
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$this->table = $table;
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$this->key = $key;
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}
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public function execute(array $data)
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{
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if (! $this->isFieldNotEmpty($data)) {
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return true;
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}
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if ($this->key === '') {
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$this->key = $this->field;
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}
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$rq = $this->pdo->prepare('SELECT 1 FROM '.$this->table.' WHERE '.$this->key.'=?');
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$rq->execute(array($data[$this->field]));
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return $rq->fetchColumn() == 1;
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}
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}
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