from django.db import models
from django.utils import six
from imagekit.processors import ResizeToFill
from imagekit.models import ProcessedImageField
import Ansjer.settings as api_settings
from django.utils.encoding import python_2_unicode_compatible
from django.contrib.auth.models import BaseUserManager, AbstractBaseUser
from Service.CommonService import CommonService

class PermissionsManager(models.Manager):
    use_in_migrations = True

    def get_by_natural_key(self, permName):
        return self.get(
            permName = permName
        )

class RoleManager(models.Manager):
    """
    The manager for the auth's Role model.
    """
    use_in_migrations = True

    def get_by_natural_key(self, roleName):
        return self.get(roleName = roleName)

class UserManager(BaseUserManager):

    def create_user(self, username, password, userID, is_active,
                    user_isValid, **extra_fields):

        user = self.model(
            username = username,
            userID = userID,
            is_active = is_active,
            user_isValid = user_isValid,
            **extra_fields
        )
        user.set_password(password)
        user.save(using=self._db)

        role = Role.objects.get(rid = 1)
        user.role.add(role)
        return user

    def create_superuser(self, username, password, userID, is_active,
                         user_isValid , **extra_fields):
        #extra_fields.setdefault('is_superuser', is_superuser)
        is_superuser = extra_fields.get('is_superuser', None)
        if is_superuser != 100 and is_superuser != 1:
            raise ValueError('Superuser must have is_superuser=1 or 100.')

        return self.create_user(username, password, userID, is_active,
                                user_isValid, **extra_fields)

@python_2_unicode_compatible
class Permissions(models.Model):
    permName = models.CharField(blank=True, null=True, max_length=32, unique=True, verbose_name=u'权限名称')
    description = models.CharField(blank=True, null=True, max_length=128, verbose_name=u'描述信息', default='')
    objects = PermissionsManager()
    def __str__(self):
        return "%s" % (
            six.text_type(self.description))
    class Meta:
        ordering = ['permName']
        db_table = 'permissions'
        verbose_name = u'role permission'
        verbose_name_plural = verbose_name
        unique_together = (('permName'),)

    def natural_key(self):
        return (self.permName)

class Role(models.Model):
    ROLE_TYPES = (
        ('Guests', u'Guests'),
        ('Users', u'Users'),
        ('Admins', u'Admins'),
        ('SysAdmins', u'SysAdmins'),
        ('LOGAdmins', u'LOGAdmins'),
        ('OTAAdmins', u'OTAAdmins'),
        ('DBAAdmins', u'DBAAdmins'),
        ('SuperAdmins', u'SuperAdmins'),
    )
    rid = models.SmallIntegerField(primary_key=True, unique=True, verbose_name=u'用户角色组ID')
    roleName = models.CharField(max_length=32, choices=ROLE_TYPES, unique=True,
                                default='User', verbose_name=u'角色名称')
    permission = models.ManyToManyField(to='Permissions', blank=True, verbose_name=u'权限', db_table='role_permissions')
    Description = models.TextField(blank=True, default='', verbose_name=u'描述信息')

    objects = RoleManager()

    class Meta:
        ordering = ['roleName']
        db_table = 'role'
        verbose_name = u'用户角色'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.roleName

    def natural_key(self):
        return (self.roleName,)

    def has_perm(self, permission, obj=None):
        if self.rid == 100:
            return True

        permlist = self.permission.all()
        for perm in permlist:
            if perm.permName == permission:
                return True

        return False

    def get_all_perms_id(self):
        perms = self.permission.all()
        permslist = []
        if self.rid == 100:
            perms = Permissions.objects.all()
            for perm in perms:
                permslist.append(perm.id)
            return permslist
        else:
            permlist_tmp = []
            for perm in perms:
                permlist_tmp.append(perm.id)
            permSet = set(permlist_tmp)
            permslist = list(permSet)
            permslist.sort()
            return permslist

    def get_all_permission(self):
        perms = self.permission.all()

        permslist = []
        if self.rid == 100:
            perms = Permissions.objects.all()
            for perm in perms:
                permslist.append(perm.permName)
            return permslist
        else:
            permlist_tmp = []
            for perm in perms:
                permlist_tmp.append(perm.permName)
            permSet = set(permlist_tmp)
            permslist = list(permSet)
            permslist.sort()
            return permslist

class Device_User(AbstractBaseUser):
    userID = models.CharField(blank=True, max_length=32, primary_key=True,
                              verbose_name=u'用户ID', unique=True, default=CommonService.getUserID(getUser=True))
    role = models.ManyToManyField(to='Role', blank=True, verbose_name=u'用户角色', db_table='user_role')

    username = models.CharField(max_length=40, verbose_name=u'用户名', unique = True)
    password = models.CharField(max_length=128, verbose_name=u'密码')
    userEmail = models.EmailField(max_length = 64, verbose_name=u'邮箱', unique = True, default='AnonymousUser@qq.com')
    # 实际的路径就是 MEDIA_ROOT/Image/filename,所以可用upload_to来指定文件存放的前缀路径
    userIconPath = ProcessedImageField(blank=True, upload_to='User/Images/', default='static/User/default.png',
                        verbose_name=u'头像',
                        # 图片将处理成85x85的尺寸
                        processors=[ResizeToFill(85, 85)],)
    userIconUrl = models.URLField(blank = True, max_length = 128, default=api_settings.SERVER_DOMAIN
                                                                          + '/account/getAvatar/User/defaultUser.png')
    NickName = models.CharField(blank=True, max_length=32, default='', verbose_name=u'用户昵称')
    is_superuser = models.IntegerField(blank=True, default=0, verbose_name=u'用户类型')
    is_active = models.BooleanField(blank=True, default=False, verbose_name=u'用户活动状态')
    data_joined = models.DateTimeField(blank=True, verbose_name=u'加入时间', auto_now_add=True)
    last_login = models.DateTimeField(blank=True, verbose_name='u最后登录时间', auto_now=True)
    user_isValid = models.BooleanField(blank=True, default=False, verbose_name=u'用户有效性', help_text=u'是否是认证通过的用户')
    online = models.BooleanField(blank=True, default=False, verbose_name=u'用户登录状态')
    machine_code = models.CharField(blank=True, max_length=128, default='', verbose_name=u'机械码')

    language = models.CharField(blank=True, null=True, max_length=16, default='', verbose_name=u'语言地区')

    objects = UserManager()

    USERNAME_FIELD = 'username' # 必须有一个唯一标识
    REQUIRED_FIELDS = ['userID', 'is_superuser'] # 创建superuser时的必须字段

    class Meta:
        ordering = ('-data_joined', )
        verbose_name = u'用户信息'
        db_table = 'device_user'
        get_latest_by = 'last_login'

    def __str__(self):
        return self.username

    def get_full_name(self):
        return self.userEmail

    def get_short_name(self):
        return self.username

    def get_role_id(self):
        rids = []
        roles = self.role.all()
        for role in roles:
            rids.append(role.rid)
        return rids

    def has_perm(self, permission, obj=None):
        roles = self.role.all()
        for role in roles:
            if role.rid == 100:
                return True

        permlist = self.permission.all()
        for perm in permlist:
            if perm.permName == permission:
                return True

        for role in roles:
            permlist = role.permission.all()
            for perm in permlist:
                if perm.permName == permission:
                    return True

        return False

    def get_all_perms_id(self):
        roles = self.role.all()
        perms = self.permission.all()

        permslist = []
        for role in roles:
            if role.rid == 100:
                perms = Permissions.objects.all()
                for perm in perms:
                    permslist.append(perm.id)
                return permslist

        for perm in perms:
            permslist.append(perm.id)

        permSet = set(permslist)
        for role in roles:
            permlist_tmp = []
            for perm in role.permission.all():
                permlist_tmp.append(perm.id)

            permSet_tmp = set(permlist_tmp)
            permSet = permSet.union(permSet_tmp)
            permslist = list(permSet)
            permslist.sort()
            return permslist

    def get_all_permission(self):
        roles = self.role.all()
        perms = self.permission.all()

        permslist = []
        for role in roles:
            if role.rid == 100:
                perms = Permissions.objects.all()
                for perm in perms:
                    permslist.append(perm.permName)
                return permslist

        for perm in perms:
            permslist.append(perm.permName)

        permSet = set(permslist)
        for role in roles:
            permlist_tmp = []
            for perm in role.permission.all():
                permlist_tmp.append(perm.permName)

            permSet_tmp = set(permlist_tmp)
            permSet = permSet.union(permSet_tmp)
            permslist = list(permSet)
            permslist.sort()
            return permslist
    '''
    def has_module_perms(self, app_label):
        return True
    def toJSON(self, fields=None, exclude=None):
        Fields = []
        for field in self._meta.fields:
            Fields.append(field.name)

        data = {}
        for attr in Fields:
            if fields and attr not in fields:
                continue
            if exclude and attr in exclude:
                continue

            if isinstance(getattr(self, attr), datetime.datetime):
                data[attr] = getattr(self, attr).strftime('%Y-%m-%d %H:%M:%S')
            elif isinstance(getattr(self, attr), datetime.date):
                data[attr] = getattr(self, attr).strftime('%Y-%m-%d')
            elif isinstance(getattr(self, attr), ProcessedImageFieldFile):
                data[attr] = str(getattr(self, attr))
            else:
                data[attr] = getattr(self, attr)

        import simplejson as json
        return json.dumps(data, ensure_ascii=False)
    '''
    @property
    def is_staff(self):
        return self.is_superuser

class Device_Info(models.Model):
    id = models.CharField(blank=True, max_length=32, primary_key=True)
    # to_field 指定当前关系与被关联对象中的哪个字段关联。默认情况下，to_field 指向被关联对象的主键
    userID = models.ForeignKey(Device_User, blank=True, to_field='userID',
                                   on_delete=models.CASCADE)

    NickName = models.CharField(blank=True, max_length=32, verbose_name=u'设备名称')
    UID = models.CharField(blank=True, max_length=32, verbose_name=u'设备UID')
    SID = models.CharField(blank=True, max_length=32, verbose_name=u'服务器ID')
    View_Account = models.CharField(blank=True, max_length=32, verbose_name=u'设备用户名称')
    View_Password = models.CharField(blank=True, max_length=32, verbose_name=u'设备密码')
    AudioFormat = models.IntegerField(blank=True, default=1, verbose_name=u'初始化影像')
    EventNotification = models.IntegerField(blank=True, verbose_name=u'报警类型')
    ChannelIndex = models.IntegerField(blank=True, verbose_name=u'通道号')
    Online = models.BooleanField(blank=True, default=False, verbose_name=u'设备是否在线')
    mMonitorIndex = models.IntegerField(blank=True, default=-1)
    Type = models.IntegerField(blank=True)
    DebugMode = models.IntegerField(blank=True, verbose_name=u'调试模式')
    NotificationMode = models.IntegerField(blank=True, verbose_name=u'是否报警')
    qvgaLevel = models.BooleanField(blank=True, verbose_name=u'SD与HD画面', default=0,
                                    help_text=u'0代表：SD、1代表：HD')
    isShare = models.BooleanField(blank=True, verbose_name=u'共享设备',
                                  help_text=u'是否为共享获取的设备', default=False)
    primaryUserID = models.CharField(blank=True, verbose_name='主用户',
                                     help_text=u'该设备的主用户', max_length=32, default='')
    data_joined = models.DateTimeField(blank=True, verbose_name=u'设备添加时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True,null=True)

    ip = models.CharField(blank=True, max_length=100, null=True, verbose_name=u'设备区域ip')
    area = models.CharField(blank=True, max_length=100, null=True, verbose_name=u'设备区域area')

    REQUIRED_FIELDS = []

    def __str__(self):
        return self.NickName
    '''
    def toJSON(self, fields=None, exclude=None):
        Fields = []
        for field in self._meta.fields:
            Fields.append(field.name)

        data = {}
        for attr in Fields:
            if fields and attr not in fields:
                continue
            if exclude and attr in exclude:
                continue

            if isinstance(getattr(self, attr), datetime.datetime):
                data[attr] = getattr(self, attr).strftime('%Y-%m-%d %H:%M:%S')
            elif isinstance(getattr(self, attr), datetime.date):
                data[attr] = getattr(self, attr).strftime('%Y-%m-%d')
            elif isinstance(getattr(self, attr), Device_User):
                data[attr] = getattr(self, attr).userID
            else:
                data[attr] = getattr(self, attr)

        import simplejson as json
        return json.dumps(data,ensure_ascii=False)
    def model_to_dict(self, fields=None, exclude=None):
        opts = self._meta
        data = {}
        for f in chain(opts.concrete_fields, opts.private_fields, opts.many_to_many):
            if not getattr(f, 'editable', False):
                continue
            if fields and f.name not in fields:
                continue
            if exclude and f.name in exclude:
                continue
            data[f.name] = f.value_from_object(self)
        return data
    '''
    class Meta:
        db_table = 'device_info'
        ordering = ('-data_joined',)
        verbose_name = u'用户设备信息表'
        verbose_name_plural=verbose_name

class AuthToken_Token(models.Model):
    tokenID = models.OneToOneField(Device_User, blank=True,on_delete=models.CASCADE,
                                   primary_key=True) #定义一对一关系
    access_token = models.CharField(blank=True, max_length=256)
    refresh_token = models.CharField(blank=True, max_length=256)
    last_update = models.DateTimeField(blank=True, auto_now=True)
    iCode = models.CharField(blank=True, max_length=12, verbose_name=u'干扰码')
    mCode = models.CharField(blank=True, max_length=64, verbose_name=u'设备码')
    class Meta:
        verbose_name = u'用户Token'
        db_table = 'authtoken_token'
        ordering = ('-last_update', )

class AuthToken_JWT(models.Model):
    jwtID = models.OneToOneField(Device_User, blank=True, on_delete=models.CASCADE,
                                 primary_key=True, verbose_name=u'token userID')
    access_token = models.CharField(blank=True, max_length=384, verbose_name=u'Access Token')
    refresh_token = models.CharField(blank=True, max_length=384, verbose_name=u'Refresh Token')
    secret = models.CharField(blank=True, max_length=32, verbose_name=u'Secret')
    last_update = models.DateTimeField(blank=True, auto_now=True, verbose_name=u'Last Update')

    class Meta:
        verbose_name = u'用户JWT'
        verbose_name_plural = verbose_name
        db_table = 'authtoken_jwt'
        ordering = ('-last_update', )

class Email_Captcha(models.Model):
    userCaptcha = models.CharField(max_length=10, verbose_name=u'验证码')
    userEmail = models.EmailField(max_length=50, verbose_name=u'邮箱')
    sendType = models.CharField(choices=(("register",u"注册"),("forget",u"找回密码")), max_length=15)
    sendTime = models.DateField(auto_now_add=True)

    class Meta:
        db_table = 'email_captcha'
        ordering = ('-sendTime',)

        verbose_name = u'邮箱验证码'
        verbose_name_plural=verbose_name

class Auth_Captcha(models.Model):
    username = models.CharField(max_length=50, help_text=u'用户名(邮箱或电话号码)')
    authcaptca = models.CharField(max_length=6, help_text=u'验证码')
    sendtype = models.CharField(max_length=15, choices=(("register",u"注册"),("forget",u"找回密码")))
    sendtime = models.DateTimeField(auto_now_add=True)

    class Meta:
        db_table = 'auth_captcha'
        ordering = ('-sendtime',)

        verbose_name = u'邮箱验证码'
        verbose_name_plural=verbose_name

class Access_Log(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    user = models.CharField(max_length=100,null=True,blank=True,verbose_name=u'用户')
    operation = models.CharField(max_length=100,null=True,blank=True,verbose_name=u'操作')
    ip = models.CharField(max_length=100,null=True,blank=True,verbose_name=u'访问ip地址')
    url = models.CharField(max_length=150,null=True,blank=True,verbose_name=u'访问路径')
    status = models.IntegerField(null=True,blank=True,verbose_name=u'状态')
    time = models.DateTimeField(null=True,blank=True, db_index=True,verbose_name=u'访问时间')
    content = models.TextField(blank=True,null=True, verbose_name=u'参数内容')
    class Meta:
        db_table = 'access_log'
        verbose_name = u'访问日志表'
        verbose_name_plural=verbose_name

class Equipment_Stream(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    userID = models.CharField(blank=True, max_length=32,verbose_name=u'用户ID')
    status = models.IntegerField(null=True, blank=True, verbose_name=u'状态')
    uid = models.CharField(null=True, blank=True,max_length=32, verbose_name=u'设备ID')
    channel = models.IntegerField(null=True, blank=True, verbose_name=u'设备通道')
    access_token = models.CharField(blank=True, max_length=128,verbose_name=u'设备推流验证令牌')
    total_flow = models.FloatField(null=True, blank=True, verbose_name=u'传输总容量')
    add_time = models.DateTimeField(blank=True, null=True,verbose_name=u'加入时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)
    rank = models.IntegerField(null=True, blank=True, verbose_name=u'推流套餐类型')

    class Meta:
        db_table = 'equipment_stream'
        verbose_name = u'用户设备推流表'
        verbose_name_plural=verbose_name

class Equipment_Sensor(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    status = models.IntegerField(null=True, blank=True, verbose_name=u'状态')
    type = models.IntegerField(null=True, blank=True, verbose_name=u'类型')
    name = models.CharField(null=True, blank=True,max_length=128, verbose_name=u'传感器名称')
    add_time = models.DateTimeField(blank=True,null=True, verbose_name=u'加入时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)
    uid = models.CharField(null=True, blank=True,max_length=32, verbose_name=u'设备ID')

    def __str__(self):
        return self.id

    class Meta:
        db_table = 'equipment_sensor'
        verbose_name = u'设备传感器表'
        verbose_name_plural=verbose_name
        ordering = ('id',)

class Equipment_Info(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    devUid = models.CharField(null=True, blank=True,max_length=32, verbose_name=u'设备ID')
    devNickName = models.CharField(blank=True, max_length=32, default='', verbose_name=u'设备昵称')
    Channel = models.IntegerField(null=True, blank=True, verbose_name=u'设备通道')
    eventType = models.IntegerField(null=True, blank=True, verbose_name=u'事件类型')
    viewAccont = models.CharField(blank=True,null=True, max_length=32, verbose_name=u'设备账户')
    viewPwd = models.CharField(blank=True, null=True,max_length=32, verbose_name=u'设备密码')
    status = models.BooleanField(blank=True, default=False, verbose_name=u'事件状态')
    alarm = models.CharField(blank=True, max_length=256, verbose_name=u'报警信息')
    eventTime = models.CharField(blank=True,null=True, max_length=16, verbose_name=u'设备报警时间')
    receiveTime = models.CharField(blank=True,null=True, max_length=16, verbose_name=u'接收到报警时间')

    def __str__(self):
        return self.id

    class Meta:
        db_table = 'equipment_info'
        verbose_name = u'设备信息推送表'
        verbose_name_plural=verbose_name
        ordering = ('id',)

class Feedback_Info(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    userID = models.CharField(blank=True, max_length=32, verbose_name=u'用户ID')
    status = models.BooleanField(blank=True, default=False, verbose_name=u'状态:0未解决/解决')
    content = models.TextField(blank=True,null=True, verbose_name=u'反馈描述')
    add_time = models.DateTimeField(blank=True, null=True, verbose_name=u'加入时间/反馈时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)

    def __str__(self):
        return self.id

    class Meta:
        db_table = 'feedback_info'
        verbose_name = u'用户反馈信息表'
        verbose_name_plural=verbose_name
        ordering = ('id',)


class Store_Meal(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增ID')
    title = models.CharField(blank=True, max_length=32, verbose_name=u'标题')
    price = models.CharField(blank=True, max_length=32, verbose_name=u'价格')
    day = models.IntegerField(null=True, blank=True, verbose_name=u'存储时间')
    content = models.TextField(blank=True,null=True, verbose_name=u'描述')
    add_time = models.DateTimeField(blank=True,null=True, verbose_name=u'加入时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)

    def __str__(self):
        return self.id

    class Meta:
        db_table = 'store_meal'
        verbose_name = u'存储套餐'
        verbose_name_plural=verbose_name
        ordering = ('id',)


class Device_Meal(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    status = models.IntegerField(null=True, blank=True, verbose_name=u'状态')
    uid = models.CharField(null=True, blank=True,max_length=32,verbose_name=u'设备ID')
    channel = models.IntegerField(null=True, blank=True, verbose_name=u'设备通道')
    add_time = models.DateTimeField(blank=True, null=True,verbose_name=u'加入时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)
    end_time = models.DateTimeField(blank=True, verbose_name=u'最后时间')
    rank = models.ForeignKey(Store_Meal, blank=True, to_field='id',
                               on_delete=models.CASCADE,verbose_name='套餐类型')

    class Meta:
        db_table = 'device_meal'
        verbose_name = u'设备关联套餐表'
        verbose_name_plural=verbose_name
        ordering = ('id',)

    def __str__(self):
        return self.id

class Equipment_Version(models.Model):
    eid = models.CharField(blank=True, max_length=32, primary_key=True)
    ESN = models.CharField(blank=True, max_length=32, verbose_name=u'设备规格名称')
    code = models.CharField(blank=True, max_length=32, verbose_name=u'设备规格代码')
    version = models.CharField(blank=True, max_length=32, verbose_name=u'设备版本')
    softwareVersion = models.CharField(blank=True, max_length=32, verbose_name=u'软件本版本')
    chipModelList2Code = models.CharField(max_length=32,blank=True, verbose_name=u'主芯片码')
    channel = models.IntegerField(blank=True, verbose_name=u'通道数')
    resolutionRatio = models.IntegerField(blank=True, verbose_name=u'分辨率')
    type = models.CharField(blank=True, max_length=16, verbose_name=u'设备机型')
    companyCode = models.CharField(blank=True, max_length=128, verbose_name=u'用户公司名称')
    data_joined = models.DateTimeField(blank=True, verbose_name=u'加入时间', auto_now_add=True)
    fileSize = models.IntegerField(blank=True, verbose_name=u'文件总大小')
    filePath = models.CharField(blank=True, max_length=256, verbose_name=u'升级文件路径')
    Description = models.TextField(blank=True, default='', verbose_name=u'描述信息')
    fileMd5 = models.CharField(blank=True,max_length=32,null=True,verbose_name=u'上传文件MD5加密')
    status = models.BooleanField(blank=True, default=True, verbose_name=u'是否开启更新状态')
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)
    class Meta:
        verbose_name = '设备版本信息'
        ordering = ('-data_joined',)
        db_table = 'equipment_version'


class App_Info(models.Model):
    id = models.AutoField(primary_key=True,verbose_name=u'自增标记ID')
    appBundleId = models.CharField(blank=True, max_length=32, verbose_name=u'appID')
    appName = models.CharField(blank=True, max_length=32, verbose_name=u'app名称')
    systemLanguage = models.CharField(blank=True, max_length=32, verbose_name=u'系统语言')
    newAppversion = models.CharField(blank=True, max_length=12, verbose_name=u'系统版本')
    bundleVersion = models.CharField(blank=True, max_length=12, verbose_name=u'项目版本')
    content = models.TextField(blank=True,null=True, verbose_name=u'更新内容')
    app_type = models.IntegerField(null=True, blank=True, verbose_name=u'app类型')
    add_time = models.DateTimeField(blank=True,null=True, verbose_name=u'加入时间', auto_now_add=True)
    update_time = models.DateTimeField(blank=True, verbose_name=u'更新时间', auto_now=True)

    def __str__(self):
        return self.id

    class Meta:
        db_table = 'app_info'
        verbose_name = u'app信息表'
        verbose_name_plural=verbose_name
        ordering = ('id',)