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"""
Executes an SQL query on the database.
"""
import getml.communication as comm
from .connection import Connection
[docs]def execute(query, conn=None):
"""
Executes an SQL query on the database.
Please note that this is not meant to return results. If you want to
get results, use database.get(...) instead.
Args:
query (str):
The SQL query to be executed.
conn (:class:`~getml.database.Connection`, optional):
The database connection to be used.
If you don't explicitly pass a connection,
the engine will use the default connection.
"""
# -------------------------------------------
conn = conn or Connection()
# -------------------------------------------
# Prepare command.
cmd = dict()
cmd["name_"] = conn.conn_id
cmd["type_"] = "Database.execute"
# -------------------------------------------
# Send JSON command to engine.
sock = comm.send_and_get_socket(cmd)
# -------------------------------------------
# Send the actual query.
comm.send_string(sock, query)
# -------------------------------------------
# Make sure that everything went well.
msg = comm.recv_string(sock)
sock.close()
if msg != "Success!":
comm.engine_exception_handler(msg)