public function getDModel()
{
if (is_null($this->_dModel)) {
$this->_dModel = Leb_Helper::loadModel('document', array(), 'document');
}
return $this->_dModel;
}
/**
*
* 得到完整的数据表名
*
* @access public
*
* @return string
*
*/
public function getTableName()
{
if (empty($this->trueTableName)) {
$tableName = '';
$len = 0;
foreach ($this->_viewFields as $key => $view) {
// 获取数据表名称
$Model = Leb_Helper::loadModel($key, $this->_dbConfig, $this->_application);
$tableName .= $Model->getTableName();
// 表别名定义
$tableName .= !empty($view['_as']) ? ' ' . $view['_as'] : ' ' . $key;
// 支持ON 条件定义
$tableName .= !empty($view['_on']) ? ' ON ' . $view['_on'] : '';
// 指定JOIN类型 例如 RIGHT INNER LEFT 下一个表有效
$type = !empty($view['_type']) ? $view['_type'] : '';
$tableName .= ' ' . strtoupper($type) . ' JOIN ';
$len = strlen($type . '_JOIN ');
}
$tableName = substr($tableName, 0, -$len);
$this->trueTableName = $tableName;
}
return $this->trueTableName;
}
/**
*
* 操作关联数据
*
* @access protected
*
* @param string $opType 操作方式 ADD SAVE DEL
* @param mixed $data 数据对象
* @param string $name 关联名称
*
* @return mixed
*
*/
protected function opRelation($opType, $data = '', $name = '')
{
$result = false;
if (empty($data) && !empty($this->data)) {
$data = $this->data;
} elseif (!is_array($data)) {
// 数据无效返回
return false;
}
if (!empty($this->_link)) {
// 遍历关联定义
foreach ($this->_link as $key => $val) {
// 操作制定关联类型
$mappingName = $val['mapping_name'] ? $val['mapping_name'] : $key;
// 映射名称
if (empty($name) || true === $name || $mappingName == $name || is_array($name) && in_array($mappingName, $name)) {
//操作制定的关联
//关联类型
$mappingType = !empty($val['mapping_type']) ? $val['mapping_type'] : $val;
//关联类名
$mappingClass = !empty($val['class_name']) ? $val['class_name'] : $key;
//当前数据对象主键值
$pk = $data[$this->getPk()];
if (strtoupper($mappingClass) == strtoupper($this->_name)) {
//自引用关联 获取父键名
$mappingFk = !empty($val['parent_key']) ? $val['parent_key'] : 'parent_id';
} else {
//关联外键
$mappingFk = !empty($val['foreign_key']) ? $val['foreign_key'] : strtolower($this->_name) . '_id';
}
$mappingCondition = !empty($val['condition']) ? $val['condition'] : "{$mappingFk}='{$pk}'";
//获取关联model对象
$model = Leb_Helper::loadModel($mappingClass, $this->_dbConfig, $this->_application);
$mappingData = isset($data[$mappingName]) ? $data[$mappingName] : false;
if (!empty($mappingData) || $opType == 'DEL') {
switch ($mappingType) {
case HAS_ONE:
switch (strtoupper($opType)) {
case 'ADD':
//增加关联数据
$mappingData[$mappingFk] = $pk;
$result = $model->add($mappingData);
break;
case 'SAVE':
//更新关联数据
$result = $model->where($mappingCondition)->save($mappingData);
break;
case 'DEL':
//根据外键删除关联数据
$result = $model->where($mappingCondition)->delete();
break;
}
break;
case BELONGS_TO:
break;
case HAS_MANY:
switch (strtoupper($opType)) {
case 'ADD':
//增加关联数据
$model->startTrans();
foreach ($mappingData as $val) {
$val[$mappingFk] = $pk;
$result = $model->add($val);
}
$model->commit();
break;
case 'SAVE':
//更新关联数据
$model->startTrans();
$pk = $model->getPk();
foreach ($mappingData as $vo) {
if (isset($vo[$pk])) {
//更新数据
$mappingCondition = "{$pk} ={$vo[$pk]}";
$result = $model->where($mappingCondition)->save($vo);
} else {
// 新增数据
$vo[$mappingFk] = $data[$this->getPk()];
$result = $model->add($vo);
}
}
$model->commit();
break;
case 'DEL':
//删除关联数据
$result = $model->where($mappingCondition)->delete();
break;
}
break;
case MANY_TO_MANY:
//关联
$mappingRelationFk = $val['relation_foreign_key'] ? $val['relation_foreign_key'] : $model->getModelName() . '_id';
$mappingRelationTable = $val['relation_table'] ? $val['relation_table'] : $this->getRelationTableName($model);
if (is_array($mappingData)) {
$ids = array();
foreach ($mappingData as $vo) {
$ids[] = $vo[$model->getPk()];
}
$relationId = implode(',', $ids);
}
switch (strtoupper($opType)) {
case 'ADD':
//增加关联数据
//增加关联数据
case 'SAVE':
//更新关联数据
if (isset($relationId)) {
$this->startTrans();
// 删除关联表数据
$this->table($mappingRelationTable)->where($mappingCondition)->delete();
// 插入关联表数据
$sql = 'INSERT INTO ' . $mappingRelationTable . ' (' . $mappingFk . ',' . $mappingRelationFk . ')
SELECT a.' . $this->getPk() . ',b.' . $model->getPk() . '
FROM ' . $this->getTableName() . ' AS a ,' . $model->getTableName() . " AS b\n \t\tWHERE a." . $this->getPk() . ' =' . $pk . '
AND b.' . $model->getPk() . ' IN (' . $relationId . ") ";
$result = $model->execute($sql);
if (false !== $result) {
// 提交事务
$this->commit();
} else {
// 事务回滚
$this->rollback();
}
}
break;
case 'DEL':
// 根据外键删除中间表关联数据
$result = $this->table($mappingRelationTable)->where($mappingCondition)->delete();
break;
}
break;
}
}
}
}
}
return $result;
}
/**
* 获得帮助对象
* @return Leb_Helper
*/
public function getHelper()
{
if (is_null($this->_helper)) {
require_once dirname(__FILE__) . DIRECTORY_SEPARATOR . 'helper.php';
$this->_helper = Leb_Helper::getInstance();
}
return $this->_helper;
}
/**
* 获得帮助对象
* @return Leb_Helper
*/
public function getHelper()
{
if (is_null($this->_helper)) {
$this->_helper = Leb_Helper::getInstance();
}
return $this->_helper;
}
/**
* 加载Model
*
* @param string $modelName
* @param array $dbconfig
* @param string $application
* @return Leb_Model
*/
public function loadModel($modelName, $dbConfig = array(), $application = '')
{
return Leb_Helper::loadModel($modelName, $dbConfig, $application);
}
