def _retrieve_items(self, page_token, item_type):
try:
list_info = self._api.tables_list(self._name_parts,
page_token=page_token)
except Exception as e:
raise e
tables = list_info.get('tables', [])
contents = []
if len(tables):
try:
for info in tables:
if info['type'] != item_type:
continue
if info['type'] == 'TABLE':
item = _table.Table(
(info['tableReference']['projectId'],
info['tableReference']['datasetId'],
info['tableReference']['tableId']), self._context)
else:
item = _view.View((info['tableReference']['projectId'],
info['tableReference']['datasetId'],
info['tableReference']['tableId']),
self._context)
contents.append(item)
except KeyError:
raise Exception('Unexpected item list response')
page_token = list_info.get('nextPageToken', None)
return contents, page_token
def __init__(self, name, context=None):
"""Initializes an instance of a View object.
Args:
name: the name of the view either as a string or a 3-part tuple
(projectid, datasetid, name). If a string, it must have the form
'<project>:<dataset>.<view>' or '<dataset>.<view>'.
context: an optional Context object providing project_id and credentials. If a specific
project id or credentials are unspecified, the default ones configured at the global
level are used.
Raises:
Exception if the name is invalid.
"""
if context is None:
context = gcp.Context.default()
self._context = context
self._table = _table.Table(name, context=context)
self._materialization = _query.Query('SELECT * FROM %s' % self._repr_sql_(), context=context)