pgadmin4/web/pgadmin/utils/ajax.py

126 lines
3.3 KiB
Python

##########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2016, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
##########################################################################
"""Utility functions for dealing with AJAX."""
from flask import Response
from flask.ext.babel import gettext as _
import simplejson as json
import datetime
import decimal
class DataTypeJSONEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, datetime.datetime):
return obj.isoformat()
if isinstance(obj, decimal.Decimal):
return float(obj)
return json.JSONEncoder.default(self, obj)
def make_json_response(success=1, errormsg='', info='', result=None,
data=None, status=200):
"""Create a HTML response document describing the results of a request and
containing the data."""
doc = dict()
doc['success'] = success
doc['errormsg'] = errormsg
doc['info'] = info
doc['result'] = result
doc['data'] = data
return Response(
response=json.dumps(doc, cls=DataTypeJSONEncoder),
status=status,
mimetype="text/json"
)
def make_response(response=None, status=200):
"""Create a JSON response handled by the backbone models."""
return Response(
response=json.dumps(response, cls=DataTypeJSONEncoder),
status=status,
mimetype="text/json"
)
def internal_server_error(errormsg=''):
"""Create a response with HTTP status code 500 - Internal Server Error."""
return make_json_response(
status=500,
success=0,
errormsg=errormsg
)
def forbidden(errmsg=''):
"""Create a response with HTTP status code 403 - Forbidden."""
return make_json_response(
status=403,
success=0,
errormsg=errmsg
)
def unauthorized(errormsg=''):
"""Create a response with HTTP status code 401 - Unauthorized."""
return make_json_response(
status=401,
success=0,
errormsg=errormsg
)
def bad_request(errormsg=''):
"""Create a response with HTTP status code 400 - Bad Request."""
return make_json_response(
status=400,
success=0,
errormsg=errormsg
)
def precondition_required(errormsg=''):
"""Create a response with HTTP status code 428 - Precondition Required."""
return make_json_response(
status=428,
success=0,
errormsg=errormsg
)
def success_return(message=''):
"""Create a response with HTTP status code 200 - OK."""
return make_json_response(
status=200,
success=1,
info=message
)
def gone(errormsg=''):
"""Create a response with HTTP status code 410 - GONE."""
return make_json_response(
status=410,
success=0,
errormsg=errormsg
)
def not_implemented(errormsg=_('It is not implemented!')):
"""Create a response with HTTP status code 501 - Not Implemented."""
return make_json_response(
status=501,
success=0,
errormsg=errormsg
)