Python google.appengine.ext.ndb 模块，QueryOptions() 实例源码

def make_ascending_ndb_query(self, kind_class, keys_only=False, filters=None):
    """Construct an NDB query for this key range, without the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, query only for keys.

    Returns:
      An ndb.Query instance.
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query, filters=filters)
    query = query.order(kind_class._key)
    return query

def make_ascending_ndb_query(self, kind_class, keys_only=False, filters=None):
    """Construct an NDB query for this key range, without the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, query only for keys.

    Returns:
      An ndb.Query instance.
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query, filters=filters)
    query = query.order(kind_class._key)
    return query

def make_ascending_ndb_query(self, kind_class, keys_only=False, filters=None):
    """Construct an NDB query for this key range, without the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, query only for keys.

    Returns:
      An ndb.Query instance.
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query, filters=filters)
    query = query.order(kind_class._key)
    return query

def make_ascending_ndb_query(self, kind_class, keys_only=False, filters=None):
    """Construct an NDB query for this key range, without the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, query only for keys.

    Returns:
      An ndb.Query instance.
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query, filters=filters)
    query = query.order(kind_class._key)
    return query

def make_ascending_ndb_query(self, kind_class, keys_only=False, filters=None):
    """Construct an NDB query for this key range, without the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, query only for keys.

    Returns:
      An ndb.Query instance.
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query, filters=filters)
    query = query.order(kind_class._key)
    return query

def ajax_reports():
    offset = request.args.get('start', type=int)
    limit = request.args.get('length', type=int)
    search_term = request.args.get('search[value]')
    order_index = request.args.get('order[0][column]', type=int)
    order_dir = request.args.get('order[0][dir]')

    fields = [EmailReport.date_reported,
        EmailReport.reported_by,
        EmailReport.report_type,
        EmailReport.subject,
        EmailReport.status]

    query = EmailReport.domain_query(g.domain)
    total_count = query.count()

    # Setup the correct ordering
    order_field = EmailReport.key
    if order_index > 0:
        order_field = fields[order_index - 1]
    if order_dir == 'desc':
        order_field = -order_field

    query_options = ndb.QueryOptions(limit=limit, offset=offset)

    results = query.order(order_field).fetch(options=query_options, projection=fields)
    results_json = [result.to_dict() for result in results]
    return jsonify({
        'draw': int(request.args.get('draw')),
        'recordsTotal': total_count,
        'recordsFiltered' : total_count,
        'data': results_json
    })

def make_directed_ndb_query(self, kind_class, keys_only=False):
    """Construct an NDB query for this key range, including the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, use keys_only on Query?

    Returns:
      An ndb.Query instance.

    Raises:
      KeyRangeError: if self.direction is not in (KeyRange.ASC, KeyRange.DESC).
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query)
    if self.__get_direction(True, False):
      query = query.order(kind_class._key)
    else:
      query = query.order(-kind_class._key)
    return query

def make_directed_ndb_query(self, kind_class, keys_only=False):
    """Construct an NDB query for this key range, including the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, use keys_only on Query?

    Returns:
      An ndb.Query instance.

    Raises:
      KeyRangeError: if self.direction is not in (KeyRange.ASC, KeyRange.DESC).
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query)
    if self.__get_direction(True, False):
      query = query.order(kind_class._key)
    else:
      query = query.order(-kind_class._key)
    return query

def make_directed_ndb_query(self, kind_class, keys_only=False):
    """Construct an NDB query for this key range, including the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, use keys_only on Query?

    Returns:
      An ndb.Query instance.

    Raises:
      KeyRangeError: if self.direction is not in (KeyRange.ASC, KeyRange.DESC).
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query)
    if self.__get_direction(True, False):
      query = query.order(kind_class._key)
    else:
      query = query.order(-kind_class._key)
    return query

def make_directed_ndb_query(self, kind_class, keys_only=False):
    """Construct an NDB query for this key range, including the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, use keys_only on Query?

    Returns:
      An ndb.Query instance.

    Raises:
      KeyRangeError: if self.direction is not in (KeyRange.ASC, KeyRange.DESC).
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query)
    if self.__get_direction(True, False):
      query = query.order(kind_class._key)
    else:
      query = query.order(-kind_class._key)
    return query

def make_directed_ndb_query(self, kind_class, keys_only=False):
    """Construct an NDB query for this key range, including the scan direction.

    Args:
      kind_class: An ndb.Model subclass.
      keys_only: bool, default False, use keys_only on Query?

    Returns:
      An ndb.Query instance.

    Raises:
      KeyRangeError: if self.direction is not in (KeyRange.ASC, KeyRange.DESC).
    """
    assert issubclass(kind_class, ndb.Model)
    if keys_only:
      default_options = ndb.QueryOptions(keys_only=True)
    else:
      default_options = None
    query = kind_class.query(app=self._app,
                             namespace=self.namespace,
                             default_options=default_options)
    query = self.filter_ndb_query(query)
    if self.__get_direction(True, False):
      query = query.order(kind_class._key)
    else:
      query = query.order(-kind_class._key)
    return query