数据插入、更新、删除

更新

方法

$ret = User::where('id', 100)->update([
    'nickname' => 'tomener',
    'updated' => NOW_TIME
]);

返回值

成功：返回影响函数，影响行数有可能为0
失败：返回false
判断返回值不全等于false就表示更新成功$ret !== false

加减

Course::where(87)->update([
    'view_num' => ['+', 2]
]);

SQL: UPDATE course SET view_num = view_num + 2 WHERE id = 87

自增、自减

//SQL: UPDATE archive SET view_num = view_num + 1 WHERE id = 100
Archive::where(100)->inc('view_num');
//SQL: UPDATE archive SET view_num = view_num + 10 WHERE id = 100
Archive::where(100)->inc('view_num', 10);
//SQL: UPDATE archive SET view_num = view_num - 1 WHERE id = 100
Archive::where(100)->dec('view_num');
//SQL: UPDATE archive SET view_num = view_num - 10 WHERE id = 100
Archive::where(100)->dec('view_num', 10);

插入数据

方法

use model/user/User;
User::insert([
    'nickname' => 'Tommy',
    'avatar' => '983602894.jpg',
    'sex' => 1
]);

插入当前模型对应的表

返回值

成功：返回插入的自增主键ID的值，如果表主键不是自增的，那么，返回插入的主键的值

失败：返回false

批量插入

use model/user/User;
User::insertMulti([
    ['nickname' => 'Tommy', 'avatar' => '983602894.jpg', 'sex' => 1],
    ['nickname' => 'Jully', 'avatar' => '689485838.jpg', 'sex' => 0],
    ['nickname' => 'luccy', 'avatar' => '548925657.jpg', 'sex' => 0],
]);

删除数据

删除id=5178的用户

use model\user\User as UserModel;
use Timo\Core\App;
use Timo\Core\Request;
class User
{
    public function del()
    {
        $uid = Request::postInt('uid'); //uid = 5178
        $ret = UserModel::where('id', $uid)->delete();
        if (!$ret) {
            return App::result(1, '删除失败');
        }
        return App::result(0, '删除成功');
    }
}

我们不推荐物理删除，一般，我们会有一个status字段，-1表示删除，0表示隐藏，1表示显示。