def get_more(collection_name, num_to_return, cursor_id):
"""Get a **getMore** message.
"""
data = __ZERO
data += bson._make_c_string(collection_name)
data += struct.pack("<i", num_to_return)
data += struct.pack("<q", cursor_id)
return __pack_message(2005, data)
def query(options, collection_name,
num_to_skip, num_to_return, query, field_selector=None):
"""Get a **query** message.
"""
data = struct.pack("<I", options)
data += bson._make_c_string(collection_name)
data += struct.pack("<i", num_to_skip)
data += struct.pack("<i", num_to_return)
data += bson.BSON.encode(query)
if field_selector is not None:
data += bson.BSON.encode(field_selector)
return __pack_message(2004, data)
def delete(collection_name, spec, safe, last_error_args):
"""Get a **delete** message.
"""
data = __ZERO
data += bson._make_c_string(collection_name)
data += __ZERO
data += bson.BSON.encode(spec)
if safe:
(_, remove_message) = __pack_message(2006, data)
(request_id, error_message) = __last_error(last_error_args)
return (request_id, remove_message + error_message)
else:
return __pack_message(2006, data)
def insert(collection_name, docs, check_keys, safe, last_error_args):
"""Get an **insert** message.
"""
data = __ZERO
data += bson._make_c_string(collection_name)
bson_data = "".join([bson.BSON.encode(doc, check_keys) for doc in docs])
if not bson_data:
raise InvalidOperation("cannot do an empty bulk insert")
data += bson_data
if safe:
(_, insert_message) = __pack_message(2002, data)
(request_id, error_message) = __last_error(last_error_args)
return (request_id, insert_message + error_message)
else:
return __pack_message(2002, data)
def update(collection_name, upsert, multi, spec, doc, safe, last_error_args):
"""Get an **update** message.
"""
options = 0
if upsert:
options += 1
if multi:
options += 2
data = __ZERO
data += bson._make_c_string(collection_name)
data += struct.pack("<i", options)
data += bson.BSON.encode(spec)
data += bson.BSON.encode(doc)
if safe:
(_, update_message) = __pack_message(2001, data)
(request_id, error_message) = __last_error(last_error_args)
return (request_id, update_message + error_message)
else:
return __pack_message(2001, data)