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<?php
/**
* Класс модели данных
*
* @copyright NetMonsters <team@netmonsters.ru>
* @link http://netmonsters.ru
* @package Majestic
* @subpackage Model
* @since 2011-11-11
*/
/**
* @property SqlDbDriver $db
*/
abstract class SqlModel extends Model
{
/**
* @param string $ident
* @return string Quoted identifier.
*/
public function identify($ident)
{
return $this->db->quoteIdentifier($ident);
}
/**
* @param mixed $value
* @return string Quoted value.
*/
public function quote($value)
{
return $this->db->quote($value);
}
/**
* @param int $id
* @return object
*/
public function get($id)
{
$sql = 'SELECT * FROM :table WHERE :pk=?';
return $this->fetch($sql, $id);
}
/**
* @param array $data
* @param mixed $where
* @return int Number of affected rows
*/
public function update($data, $where)
{
if (is_int($where) || $where === (string) (int) $where) {
$where = $this->identify($this->key) . '=' . (int) $where;
}
return parent::update($data, $where);
}
/**
* @param int $id Int id
* @return int Number of affected rows
*/
public function delete($id)
{
$where = $this->identify($this->key) . '=' . (int) $id;
return $this->db->delete($this->table(), $where);
}
/**
* Creates order sql string
*
* @param array $params
* @param array $sortable
* @return string
*/
protected function order($params, $sortable = array('id'))
{
$sql = '';
if (isset($params['sort'])) {
$order = (isset($params['order']) && $params['order'] == 'desc') ? 'DESC' : 'ASC';
if (in_array($params['sort'], $sortable)) {
$sql = ' ORDER BY ' . $this->identify($params['sort']) . ' ' . $order;
}
}
return $sql;
}
/**
* Searches using like
*
* @param array $params
* @param array $searchable
* @param string $table_prefix
* @return string
*/
protected function search($params, $searchable = array('id'), $table_prefix = '')
{
$sql = '';
if (isset($params['q']) && isset($params['qt']) && in_array($params['qt'], $searchable)) {
if ($table_prefix) {
$sql = $table_prefix . '.';
}
$sql .= $this->identify($params['qt']) . ' LIKE ' . $this->quote('%' . $params['q'] . '%');
}
return $sql;
}
/**
* This method appends to params table and primary key.
* So they can be accessed through `:table` and `:pk` placeholders.
*
* @param string $sql
* @param array $params
* @return DbStatement
*/
protected function query($sql, $params = array())
{
if (!is_array($params)) {
$params = array($params);
}
$params = array(
'table' => new DbExpr($this->identify($this->table())),
'pk' => new DbExpr($this->identify($this->key)),
) + $params;
return $this->db->query($sql, $params);
}
/**
* @param string $data Request
* @param array $params Request parameters
* @param string $field Requested field name
* @param CacheKey $cache_key Key for caching in
* @return mixed
*/
protected function fetchField($data, $params = array(), $field, $cache_key = null)
{
if (!$cache_key || !$result = $cache_key->get()) {
$result = $this->query($data, $params)->fetchField($field);
if ($cache_key) {
$cache_key->set($result);
}
}
return $result;
}
/**
* @param string $data Request
* @param array $params Request parameters
* @param CacheKey $cache_key Key for caching in
* @return mixed
*/
protected function fetch($data, $params = array(), $cache_key = null)
{
if (!$cache_key || !$result = $cache_key->get()) {
$result = $this->query($data, $params)->fetch();
if ($cache_key) {
$cache_key->set($result);
}
}
return $result;
}
/**
* @param string $data
* @param array $params
* @param CacheKey $cache_key
* @return array
*/
protected function fetchAll($data, $params = array(), $cache_key = null)
{
if (!$cache_key || !$result = $cache_key->get()) {
$result = $this->query($data, $params)->fetchAll();
if ($cache_key) {
$cache_key->set($result);
}
}
return $result;
}
}