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<?php
class N2DBConnector extends N2DBConnectorAbstract {
/** @var $wpdb wpdb */
private $db;
private static $nameQuote = '`';
public $primaryKeyColumn = "id";
public function __construct($class) {
/** @var $wpdb wpdb */
global $wpdb;
$this->db = $wpdb;
$this->_prefix = $wpdb->prefix;
$this->setTableName($class);
}
public function query($query, $attributes = false) {
if ($attributes) {
foreach ($attributes as $key => $value) {
$replaceTo = is_numeric($value) ? $value : $this->db->prepare('%s', $value);
$query = str_replace($key, $replaceTo, $query);
}
}
if ($this->db->query($query) === false) {
if (is_admin()) {
echo $this->db->last_error;
exit();
}
}
}
public function findByPk($primaryKey) {
$query = $this->db->prepare("
SELECT *
FROM {$this->tableName}
WHERE {$this->quoteName($this->primaryKeyColumn)} = %s
", $primaryKey);
return $this->db->get_row($query, ARRAY_A);
}
private function _findByAttributesSQL(array $attributes, $fields = false, $order = false) {
$args = array('');
$query = 'SELECT ';
if ($fields) {
$fields = array_map(array(
$this,
'quoteName'
), $fields);
$query .= implode(', ', $fields);
} else {
$query .= '*';
}
$query .= ' FROM ' . $this->tableName;
$where = array();
foreach ($attributes as $key => $val) {
$where[] = $this->quoteName($key) . ' = ' . (is_numeric($val) ? '%d' : '%s');
$args[] = $val;
}
if (count($where)) {
$query .= ' WHERE ' . implode(' AND ', $where);
}
if ($order) {
$query .= ' ORDER BY ' . $order;
}
if (count($args) > 1) {
$args[0] = $query;
return call_user_func_array(array(
$this->db,
'prepare'
), $args);
} else {
return $query;
}
}
public function findByAttributes(array $attributes, $fields = false, $order = false) {
return $this->db->get_row($this->_findByAttributesSQL($attributes, $fields, $order), ARRAY_A);
}
public function findAll($order = false) {
return $this->db->get_results($this->_findByAttributesSQL(array(), false, $order), ARRAY_A);
}
/**
* Return with all row by attributes
*
* @param array $attributes
* @param bool|array $fields
* @param bool|string $order
*
* @return mixed
*/
public function findAllByAttributes(array $attributes, $fields = false, $order = false) {
return $this->db->get_results($this->_findByAttributesSQL($attributes, $fields, $order), ARRAY_A);
}
private function _querySQL($query, $attributes = false) {
$args = array('');
if ($attributes) {
foreach ($attributes as $key => $value) {
$replaceTo = is_numeric($value) ? '%d' : '%s';
$query = str_replace($key, $replaceTo, $query);
$args[] = $value;
}
}
if (count($args) > 1) {
$args[0] = $query;
return call_user_func_array(array(
$this->db,
'prepare'
), $args);
} else {
return $query;
}
}
/**
* Return with one row by query string
*
* @param string $query
* @param array|bool $attributes for parameter binding
*
* @return mixed
*/
public function queryRow($query, $attributes = false) {
return $this->db->get_row($this->_querySQL($query, $attributes), ARRAY_A);
}
public function queryAll($query, $attributes = false, $type = "assoc", $key = null) {
$result = $this->db->get_results($this->_querySQL($query, $attributes), $type == 'assoc' ? ARRAY_A : OBJECT_K);
if (!$key) {
return $result;
}
$realResult = array();
for ($i = 0; $i < count($result); $i++) {
$key = $type == 'assoc' ? $result[i][$key] : $result[i]->{$key};
$realResult[$key] = $result[i];
}
return $realResult;
}
/**
* Insert new row
*
* @param array $attributes
*
* @return mixed|void
*/
public function insert(array $attributes) {
return $this->db->insert($this->tableName, $attributes);
}
public function insertId() {
return $this->db->insert_id;
}
/**
* Update row(s) by param(s)
*
* @param array $attributes
* @param array $conditions
*
* @return mixed
*/
public function update(array $attributes, array $conditions) {
return $this->db->update($this->tableName, $attributes, $conditions);
}
/**
* Update one row by primary key with $attributes
*
* @param mixed $primaryKey
* @param array $attributes
*
* @return mixed
*/
public function updateByPk($primaryKey, array $attributes) {
$where = array();
$where[$this->primaryKeyColumn] = $primaryKey;
$this->db->update($this->tableName, $attributes, $where);
}
/**
* Delete one with by primary key
*
* @param mixed $primaryKey
*
* @return mixed
*/
public function deleteByPk($primaryKey) {
$where = array();
$where[$this->primaryKeyColumn] = $primaryKey;
$this->db->delete($this->tableName, $where);
}
/**
* Delete all rows by attributes
*
* @param array $conditions
*
* @return mixed
*/
public function deleteByAttributes(array $conditions) {
$this->db->delete($this->tableName, $conditions);
}
/**
* @param string $text
* @param bool $escape
*
* @return string
*/
public function quote($text, $escape = true) {
return '\'' . (esc_sql($text)) . '\'';
}
/**
* @param string $name
* @param null $as
*
* @return mixed
*/
public function quoteName($name, $as = null) {
if (strpos($name, '.') !== false) {
return $name;
} else {
$q = self::$nameQuote;
if (strlen($q) == 1) {
return $q . $name . $q;
} else {
return $q{0} . $name . $q{1};
}
}
}
}
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