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Add SqlCriteria.join(). Refactoring SqlResultCollection (add SqlResultCollection).

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This commit is contained in:
Alexander Demidov
2014-03-06 15:26:59 +04:00
parent 740bd6b7f3
commit 3272d7a903
4 changed files with 113 additions and 19 deletions
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47
model/SqlCriteria.php
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@ -2,6 +2,20 @@
class SqlCriteria
{
const JOIN_TYPE_DEFAULT = 100;
const JOIN_TYPE_LEFT = 101;
const JOIN_TYPE_RIGHT = 102;
const JOIN_TYPE_INNER = 103;
const JOIN_TYPE_OUTER = 104;
private static $join_type_to_reserved_keyword = array(
self::JOIN_TYPE_DEFAULT => 'JOIN',
self::JOIN_TYPE_LEFT => 'LEFT JOIN',
self::JOIN_TYPE_RIGHT => 'RIGHT JOIN',
self::JOIN_TYPE_INNER => 'INNER JOIN',
self::JOIN_TYPE_OUTER => 'OUTER JOIN',
);
private $select = array();
private $distinct = '';
@ -23,6 +37,8 @@ class SqlCriteria
private $sql_expression_params = array();
private $sql_join_expressions = array();
/**
* @param $model SqlModel
* @param $sql_expression string|null Sql expression with SELECT and FROM operators. If fetched, then SqlCriteria::select(), SqlCriteria::distinct() disabled for use.
@ -40,14 +56,39 @@ class SqlCriteria
*/
public function find()
{
// preparing link expressions (if exists)
if ($this->sql_join_expressions) {
if (!$this->sql_expression) {
$select = $this->model->getDb()->selectExpr($this->select, $this->distinct);
$this->sql_expression = 'SELECT ' . $select . ' FROM :table';
}
$this->sql_expression .= ' ' . implode(' ', $this->sql_join_expressions);
}
return $this->model->find($this->select, $this->distinct, $this->where, $this->order, $this->limit, null, $this->group_by, $this->sql_expression, $this->sql_expression_params);
}
public function delete()
{
return $this->model->find('', '', $this->where, null, null, null, null, 'DELETE FROM :table', $this->sql_expression_params)->affectedRows();
}
public function count()
{
return $this->model->find(new DbExpr('COUNT(*) as count'), '', $this->where, null, null, null, null, $this->sql_expression, $this->sql_expression_params)->fetchField('count');
}
public function join($join_table_name, $join_field_name, $donor_table_name = null, $donor_field_name = null, $join_type = self::JOIN_TYPE_DEFAULT)
{
$donor_field_name = $donor_field_name ? : $join_field_name;
$donor_table_name = $donor_table_name ? : 'table';
$this->sql_join_expressions[] = self::$join_type_to_reserved_keyword[$join_type]
. ' :' . $join_table_name
. ' ON :' . $donor_table_name . '.' . $donor_field_name . '='
. ':' . $join_table_name . '.' . $join_field_name;
$this->sql_expression_params[$join_table_name] = new DbExpr($this->model->identify($join_table_name));
return $this;
}
/**
* @param $cond string|array Condition with "?" placeholder @ex 'field=?' or 'field=1' or array('field=?' => 1', 'field=1')
* @param $value string|array|DbExpr|null Value. Array transformed to DbExpr(implode(',' Array)) All elements in the array mast be integer
@ -140,17 +181,21 @@ class SqlCriteria
/**
* @param string|array $fields
* @param bool $convert_to_db_expression
* @ex SqlCriteria::select('field')
* @ex SqlCriteria->select(array('field1', 'field2'))
* @ex SqlCriteria->select('field1,field2')
* @return SqlCriteria
*/
public function select($fields)
public function select($fields, $convert_to_db_expression = false)
{
if (!is_array($fields)) {
$fields = explode(',', $fields);
}
$fields = array_map(function($item){return trim($item);},$fields);
if ($convert_to_db_expression) {
$fields = array_map(function($item){return new DbExpr($item);},$fields);
}
$this->select = array_merge($this->select,$fields);
return $this;
}