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# Module for calling the backend
from flask import g
import string
import urllib.request, urllib.error, urllib.parse
import json
from utility.tools import USE_GN_SERVER, LOG_SQL, GN_SERVER_URL
from utility.benchmark import Bench
from utility.logger import getLogger
logger = getLogger(__name__ )
# from inspect import stack
def fetch1(query, path=None, func=None):
"""Fetch one result as a Tuple using either a SQL query or the URI
path to GN_SERVER (when USE_GN_SERVER is True). Apply func to
GN_SERVER result when set (which should return a Tuple)
"""
if USE_GN_SERVER and path:
result = gn_server(path)
if func != None:
res2 = func(result)
else:
res2 = result,
if LOG_SQL:
logger.debug("Replaced SQL call",query)
logger.debug(path,res2)
return res2
else:
return fetchone(query)
def fetchone(query):
"""Return tuple containing one row by calling SQL directly (the
original fetchone, but with logging)
"""
with Bench("SQL",LOG_SQL):
def helper(query):
res = g.db.execute(query)
return res.fetchone()
return logger.sql(query, helper)
def fetchall(query):
"""Return row iterator by calling SQL directly (the
original fetchall, but with logging)
"""
with Bench("SQL",LOG_SQL):
def helper(query):
res = g.db.execute(query)
return res.fetchall()
return logger.sql(query, helper)
def gn_server(path):
"""Return JSON record by calling GN_SERVER
"""
with Bench("GN_SERVER",LOG_SQL):
res = urllib.request.urlopen(GN_SERVER_URL+path)
rest = res.read()
res2 = json.loads(rest)
logger.debug(res2)
return res2
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