<?php
// +----------------------------------------------------------------------
// | SentCMS [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://www.tensent.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: molong <molong@tensent.cn> <http://www.tensent.cn>
// +----------------------------------------------------------------------

namespace app\common\model;

/**
* 设置模型
*/
class Attribute extends Base{

	protected $type = array(
		'id'  => 'integer',
	);

	protected function getTypeTextAttr($value, $data){
    	$type = config('config_type_list');
    	$type_text = explode(',', $type[$data['type']]);
        return $type_text[0];
	}

	public function getFieldlist($map,$index='id'){
		$list = array();
		$row = db('Attribute')->field('*,remark as help,type,extra as "option"')->where($map)->select();
		foreach ($row as $key => $value) {
			if (in_array($value['type'],array('checkbox','radio','select','bool'))) {
				$value['option'] = parse_field_attr($value['extra']);
			} elseif ($value['type'] == 'bind') {
				$extra = parse_field_bind($value['extra']);
				$option = array();
				foreach ($extra as $k => $v) {
					$option[$v['id']] = $v['title_show'];
				}
				$value['option'] = $option;
			}
			$list[$value['id']] = $value;
		}
		return $list;
	}

	public function change(){
		$data = \think\Request::instance()->post();

		if ($data['id']) {
			$status = $this->validate('attribute.edit')->save($data, array('id'=>$data['id']));
		}else{
			$status = $this->validate('attribute.add')->save($data);
		}
		
		if (false !== $status) {
			//在数据库内添加字段
			$result = $this->checkTableField($data);
			if (!$result) {
				$this->error = "字段创建失败！";
				return false;
			}
			return $status;
		}else{
			return false;
		}
	}

	public function del($id, $model_id){
		$map['id'] = $id;
		$info = $this->find($id);
		$tablename = db('Model')->where(array('id'=>$model_id))->value('name');

		//先删除字段表内的数据
		$result = $this->where($map)->delete();
		if ($result) {
			$tablename = strtolower($tablename);
			//删除模型表中字段
			$db = new \com\Datatable();
			if (!$db->CheckField($tablename,$info['name'])) {
				return true;
			}
			$result = $db->delField($tablename,$info['name'])->query();
			if ($result) {
				return true;
			}else{
				$this->error = "删除失败！";
				return false;
			}
		}else{
			$this->error = "删除失败！";
			return false;
		}
	}

	protected function checkTableField($field){
		$model = db('Model')->find($field['model_id']);
		if ($model['extend'] == 1) {
			$tablename = 'document_'.$model['name'];
			$key = "doc_id";
		}else{
			$tablename = $model['name'];
			$key = "id";
		}

		//实例化一个数据库操作类
		$db = new \com\Datatable();
		//检查表是否存在并创建
		if (!$db->CheckTable($tablename)) {
			//创建新表
			$db->start_table($tablename)->create_id($key)->create_key($key)->end_table()->query();
		};
		$oldname = "";
		if ($field['id']) {
			$oldname = $this->db()->where(array('id'=>$field['id']))->value('name');
		}
		$attribute_type = get_attribute_type();
		$field['field'] = $field['name'];
		$field['type'] = $attribute_type[$field['type']][1];  
		$field['is_null'] = $field['is_must'];  //是否为null
		$field['default'] = $field['value'];    //字段默认值
		$field['comment'] = $field['remark'];   //字段注释
		if($db->CheckField($tablename,$oldname) && $oldname){
			$field['action'] = 'CHANGE';
			$field['oldname'] = $oldname;
			$field['newname'] = $field['name'];
			$db->colum_field($tablename,$field);
		}else{
			$field['action'] = 'ADD';
			$db->colum_field($tablename,$field);
		}

		$result = $db->create();
		return $result;
	}

	public function generate($model){
		$tablename = strtolower($model['name']);
		//实例化一个数据库操作类
		$db = new \com\Datatable();
		//检查表是否存在并创建
		if (!$db->CheckTable($tablename)) {
			//创建新表
			$db->initTable($tablename, $model['title'], 'id')->query();
		};
	}
}