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Add SqlCriteria class. Add SqlModel.find() with use SqlCriteria.

namespace
Alexander Demidov 11 years ago
parent
commit
c890d082aa
  1. 86
      model/SqlCriteria.php
  2. 32
      model/SqlModel.php

86
model/SqlCriteria.php

@ -0,0 +1,86 @@
<?php
class SqlCriteria
{
public $select = array('*');
public $distinct = '';
public $where = array();
public $order = array();
public $limit = '';
/**
* @return SqlCriteria
*/
public static function getInstance()
{
return self;
}
/**
* @param $conditions array @ex array('field=?' => $value, 'field in ? => new DbExpr('(1,2,3)'))
* @return SqlCriteria
*/
public function where($conditions)
{
$this->where = $conditions;
return $this;
}
/**
* @param $fields array()
* @param array $fields_to_desc
* @return SqlCriteria
*/
public function order($fields, $fields_to_desc = array())
{
if (!is_array($fields)) {
$fields = array($fields);
}
foreach ($fields as $term) {
$term = $this->db->quoteIdentifier($term) . (in_array($term, $fields_to_desc) ? ' DESC' : '');
}
$this->order = implode(',', $fields);
return $this;
}
/**
* @param $limit int
* @param $offset int
* @return SqlCriteria
*/
public function limit($limit, $offset = 0)
{
if (empty($offset)) {
$this->limit = (int) $limit;
}
$this->limit = (int)$limit . ',' . (int) $offset;
return $this;
}
/**
* @param mixed $select array @ex array('field1', 'field2', 'field3' => 'field')
* @return string
*/
public function select($select)
{
if (!is_array($select)) {
$select = array($select);
}
$this->select = implode(',', $select);
return $this;
}
/**
* @param $field string
* @return SqlCriteria
*/
public function distinct($field)
{
$this->distinct = $field;
return $this;
}
}

32
model/SqlModel.php

@ -15,7 +15,6 @@
*/
abstract class SqlModel extends Model
{
/**
* @param string $ident
* @return string Quoted identifier.
@ -178,4 +177,35 @@ abstract class SqlModel extends Model
return $result;
}
/**
* @param $criteria SqlCriteria
*/
public function find($criteria)
{
foreach ($criteria->select as $field => &$term) {
if (is_int($field)) {
$term = $this->db->quoteIdentifier($term);
} else {
$term = $this->db->quoteIdentifier($field) . ' as ' . $this->db->quoteIdentifier($term);
}
}
foreach ($criteria->where as $cond => &$term) {
$term = $this->db->quoteInto($cond, $term);
}
foreach ($criteria->order as $field => $term) {
if (!is_int($field) && $term == 'desc') {
$term = $term = $this->db->quoteIdentifier($field) . ' DESC';
} else {
$term = $this->db->quoteIdentifier($term);
}
}
if ($criteria->distinct != '') {
$criteria->distinct = 'DISTINCT ' . $this->db->quoteIdentifier($criteria->distinct);
}
$sql = 'SELECT ' . (($criteria->distinct) ? $criteria->distinct : implode(',', $criteria->select))
. ' FROM ' . $this->db->quoteIdentifier($this->table)
. (($criteria->where) ? (' WHERE ' . implode(' AND ', $criteria->where)) : '')
. (($criteria->order) ? (' ORDER BY ' . implode(',', $criteria->order)) : '')
. (($criteria->limit) ? (' LIMIT ' . implode(',',array_map(function($item){return intval($item);},explode(',',$criteria->limit)))) : '');
}
}
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