Python google.appengine.ext.db 模块，KindError() 实例源码

我们从Python开源项目中，提取了以下11个代码示例，用于说明如何使用google.appengine.ext.db.KindError()。

项目：Intranet-Penetration 作者：yuxiaokui | 项目源码 | 文件源码

def from_entity(cls, entity):
    """Load from entity to class based on discriminator.

    Rather than instantiating a new Model instance based on the kind
    mapping, this creates an instance of the correct model class based
    on the entities class-key.

    Args:
      entity: Entity loaded directly from datastore.

    Raises:
      KindError when there is no class mapping based on discriminator.
    """
    if (_CLASS_KEY_PROPERTY in entity and
        tuple(entity[_CLASS_KEY_PROPERTY]) != cls.class_key()):
      key = tuple(entity[_CLASS_KEY_PROPERTY])
      try:
        poly_class = _class_map[key]
      except KeyError:
        raise db.KindError('No implementation for class \'%s\'' % (key,))
      return poly_class.from_entity(entity)
    return super(PolyModel, cls).from_entity(entity)

项目：Intranet-Penetration 作者：yuxiaokui | 项目源码 | 文件源码

def GetImplementationClass(kind_or_class_key):
  """Returns the implementation class for a given kind or class key.

  Args:
    kind_or_class_key: A kind string or a tuple of kind strings.

  Return:
    A db.Model subclass for the given kind or class key.
  """
  if isinstance(kind_or_class_key, tuple):
    try:
      implementation_class = polymodel._class_map[kind_or_class_key]
    except KeyError:
      raise db.KindError('No implementation for class \'%s\'' %
                         kind_or_class_key)
  else:
    implementation_class = db.class_for_kind(kind_or_class_key)
  return implementation_class

项目：MKFQ 作者：maojingios | 项目源码 | 文件源码

def from_entity(cls, entity):
    """Load from entity to class based on discriminator.

    Rather than instantiating a new Model instance based on the kind
    mapping, this creates an instance of the correct model class based
    on the entities class-key.

    Args:
      entity: Entity loaded directly from datastore.

    Raises:
      KindError when there is no class mapping based on discriminator.
    """
    if (_CLASS_KEY_PROPERTY in entity and
        tuple(entity[_CLASS_KEY_PROPERTY]) != cls.class_key()):
      key = tuple(entity[_CLASS_KEY_PROPERTY])
      try:
        poly_class = _class_map[key]
      except KeyError:
        raise db.KindError('No implementation for class \'%s\'' % (key,))
      return poly_class.from_entity(entity)
    return super(PolyModel, cls).from_entity(entity)

项目：MKFQ 作者：maojingios | 项目源码 | 文件源码

def GetImplementationClass(kind_or_class_key):
  """Returns the implementation class for a given kind or class key.

  Args:
    kind_or_class_key: A kind string or a tuple of kind strings.

  Return:
    A db.Model subclass for the given kind or class key.
  """
  if isinstance(kind_or_class_key, tuple):
    try:
      implementation_class = polymodel._class_map[kind_or_class_key]
    except KeyError:
      raise db.KindError('No implementation for class \'%s\'' %
                         kind_or_class_key)
  else:
    implementation_class = db.class_for_kind(kind_or_class_key)
  return implementation_class

项目：beg-django-e-commerce 作者：Apress | 项目源码 | 文件源码

def get_object(model, *filters_or_key, **kwargs):
    if kwargs.get('key_name'):
        item = model.get_by_key_name(kwargs.get('key_name'),
            parent=kwargs.get('parent'))
    elif kwargs.get('id'):
        item = model.get_by_id(kwargs.get('id'),
            parent=kwargs.get('parent'))
    elif len(filters_or_key) > 1:
        item = get_filtered(model.all(), *filters_or_key).get()
    else:
        error = None
        if isinstance(filters_or_key[0], (tuple, list)):
            error = [None for index in range(len(filters_or_key[0]))]
        try:
            item = model.get(filters_or_key[0])
        except (db.BadKeyError, db.KindError):
            return error
    return item

项目：xxNet 作者：drzorm | 项目源码 | 文件源码

def from_entity(cls, entity):
    """Load from entity to class based on discriminator.

    Rather than instantiating a new Model instance based on the kind
    mapping, this creates an instance of the correct model class based
    on the entities class-key.

    Args:
      entity: Entity loaded directly from datastore.

    Raises:
      KindError when there is no class mapping based on discriminator.
    """
    if (_CLASS_KEY_PROPERTY in entity and
        tuple(entity[_CLASS_KEY_PROPERTY]) != cls.class_key()):
      key = tuple(entity[_CLASS_KEY_PROPERTY])
      try:
        poly_class = _class_map[key]
      except KeyError:
        raise db.KindError('No implementation for class \'%s\'' % (key,))
      return poly_class.from_entity(entity)
    return super(PolyModel, cls).from_entity(entity)

项目：xxNet 作者：drzorm | 项目源码 | 文件源码

def GetImplementationClass(kind_or_class_key):
  """Returns the implementation class for a given kind or class key.

  Args:
    kind_or_class_key: A kind string or a tuple of kind strings.

  Return:
    A db.Model subclass for the given kind or class key.
  """
  if isinstance(kind_or_class_key, tuple):
    try:
      implementation_class = polymodel._class_map[kind_or_class_key]
    except KeyError:
      raise db.KindError('No implementation for class \'%s\'' %
                         kind_or_class_key)
  else:
    implementation_class = db.class_for_kind(kind_or_class_key)
  return implementation_class

项目：Deploy_XXNET_Server 作者：jzp820927 | 项目源码 | 文件源码

def from_entity(cls, entity):
    """Load from entity to class based on discriminator.

    Rather than instantiating a new Model instance based on the kind
    mapping, this creates an instance of the correct model class based
    on the entities class-key.

    Args:
      entity: Entity loaded directly from datastore.

    Raises:
      KindError when there is no class mapping based on discriminator.
    """
    if (_CLASS_KEY_PROPERTY in entity and
        tuple(entity[_CLASS_KEY_PROPERTY]) != cls.class_key()):
      key = tuple(entity[_CLASS_KEY_PROPERTY])
      try:
        poly_class = _class_map[key]
      except KeyError:
        raise db.KindError('No implementation for class \'%s\'' % (key,))
      return poly_class.from_entity(entity)
    return super(PolyModel, cls).from_entity(entity)

项目：Deploy_XXNET_Server 作者：jzp820927 | 项目源码 | 文件源码

def GetImplementationClass(kind_or_class_key):
  """Returns the implementation class for a given kind or class key.

  Args:
    kind_or_class_key: A kind string or a tuple of kind strings.

  Return:
    A db.Model subclass for the given kind or class key.
  """
  if isinstance(kind_or_class_key, tuple):
    try:
      implementation_class = polymodel._class_map[kind_or_class_key]
    except KeyError:
      raise db.KindError('No implementation for class \'%s\'' %
                         kind_or_class_key)
  else:
    implementation_class = db.class_for_kind(kind_or_class_key)
  return implementation_class

项目：Docker-XX-Net 作者：kuanghy | 项目源码 | 文件源码

def from_entity(cls, entity):
    """Load from entity to class based on discriminator.

    Rather than instantiating a new Model instance based on the kind
    mapping, this creates an instance of the correct model class based
    on the entities class-key.

    Args:
      entity: Entity loaded directly from datastore.

    Raises:
      KindError when there is no class mapping based on discriminator.
    """
    if (_CLASS_KEY_PROPERTY in entity and
        tuple(entity[_CLASS_KEY_PROPERTY]) != cls.class_key()):
      key = tuple(entity[_CLASS_KEY_PROPERTY])
      try:
        poly_class = _class_map[key]
      except KeyError:
        raise db.KindError('No implementation for class \'%s\'' % (key,))
      return poly_class.from_entity(entity)
    return super(PolyModel, cls).from_entity(entity)

项目：Docker-XX-Net 作者：kuanghy | 项目源码 | 文件源码

def GetImplementationClass(kind_or_class_key):
  """Returns the implementation class for a given kind or class key.

  Args:
    kind_or_class_key: A kind string or a tuple of kind strings.

  Return:
    A db.Model subclass for the given kind or class key.
  """
  if isinstance(kind_or_class_key, tuple):
    try:
      implementation_class = polymodel._class_map[kind_or_class_key]
    except KeyError:
      raise db.KindError('No implementation for class \'%s\'' %
                         kind_or_class_key)
  else:
    implementation_class = db.class_for_kind(kind_or_class_key)
  return implementation_class