Yuri Kuznetsov
64 lines
1.3 KiB
PHP
64 lines
1.3 KiB
PHP
<?php
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namespace Espo\ORM\DB;
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use Espo\ORM\Entity;
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use Espo\ORM\Classes\EntityCollection;
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use PDO;
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/**
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* Abstraction for MySQL DB.
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* Mapping of Entity to DB.
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* Should be used internally only.
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*/
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class MysqlMapper extends Mapper
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{
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protected function composeSelectQuery($table, $select, $joins = '', $where = '', $order = '', $offset = null, $limit = null, $distinct = null)
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{
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$sql = "SELECT";
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if (!empty($distinct)) {
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$sql .= " DISTINCT";
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}
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$sql .= " {$select} FROM `{$table}`";
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if (!empty($joins)) {
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$sql .= " {$joins}";
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}
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if (!empty($where)) {
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$sql .= " WHERE {$where}";
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}
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if (!empty($order)) {
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$sql .= " {$order}";
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}
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if (is_null($offset) && !is_null($limit)) {
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$offset = 0;
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}
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if (!is_null($offset) && !is_null($limit)) {
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$offset = intval($offset);
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$limit = intval($limit);
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$sql .= " LIMIT {$offset}, {$limit}";
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}
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return $sql;
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}
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protected function toDb($field)
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{
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if (array_key_exists($field, $this->fieldsMapCache)) {
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return $this->fieldsMapCache[$field];
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} else {
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$dbField = strtolower(preg_replace('/(?<=[a-z])([A-Z])/', '_$1', $field));
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$this->fieldsMapCache[$field] = $dbField;
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return $dbField;
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}
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}
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}
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?>
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