myems-api/core/costcenter.py
import uuid
import falcon
import mysql.connector
import simplejson as json
from core.useractivity import user_logger, admin_control, access_control, api_key_control
import config
class CostCenterCollection:
def __init__(self):
""""Initializes CostCenterCollection"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp):
"""Handles GET requests"""
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid, external_id "
" FROM tbl_cost_centers "
" ORDER BY id")
cursor.execute(query)
rows = cursor.fetchall()
cursor.close()
cnx.close()
result = list()
if rows is not None and len(rows) > 0:
for row in rows:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"external_id": row[3]}
result.append(meta_result)
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or len(new_values['data']['name']) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_NAME_VALUE')
name = str.strip(new_values['data']['name'])
if 'external_id' in new_values['data'].keys() and \
new_values['data']['external_id'] is not None and \
len(str(new_values['data']['external_id'])) > 0:
external_id = str.strip(new_values['data']['external_id'])
else:
external_id = None
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE name = %s ", (name, ))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.COST_CENTER_NAME_EXISTS')
if external_id is not None:
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE external_id = %s ", (external_id, ))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.COST_CENTER_EXTERNAL_ID_EXISTS')
add_row = (" INSERT INTO tbl_cost_centers "
" (name, uuid, external_id) "
" VALUES (%s, %s, %s) ")
cursor.execute(add_row, (name,
str(uuid.uuid4()),
external_id,))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/costcenters/' + str(new_id)
class CostCenterItem:
def __init__(self):
""""Initializes CostCenterItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
"""Handles GET requests"""
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, uuid, external_id "
" FROM tbl_cost_centers "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"external_id": row[3]}
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_delete(req, resp, id_):
"""Handles DELETE requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
# check relation with equipments
cursor.execute(" SELECT id "
" FROM tbl_equipments "
" WHERE cost_center_id = %s ", (id_,))
rows_equipments = cursor.fetchall()
if rows_equipments is not None and len(rows_equipments) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_EQUIPMENTS')
# check relation with combined equipments
cursor.execute(" SELECT id "
" FROM tbl_combined_equipments "
" WHERE cost_center_id = %s ", (id_,))
rows_combined_equipments = cursor.fetchall()
if rows_combined_equipments is not None and len(rows_combined_equipments) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_COMBINED_EQUIPMENTS')
# check relation with meters
cursor.execute(" SELECT id "
" FROM tbl_meters "
" WHERE cost_center_id = %s ", (id_,))
rows_meters = cursor.fetchall()
if rows_meters is not None and len(rows_meters) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_METERS')
# check relation with offline meters
cursor.execute(" SELECT id "
" FROM tbl_offline_meters "
" WHERE cost_center_id = %s ", (id_,))
rows_offline_meters = cursor.fetchall()
if rows_offline_meters is not None and len(rows_offline_meters) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_OFFLINE_METERS')
# check relation with virtual meters
cursor.execute(" SELECT id "
" FROM tbl_virtual_meters "
" WHERE cost_center_id = %s ", (id_,))
rows_virtual_meters = cursor.fetchall()
if rows_virtual_meters is not None and len(rows_virtual_meters) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_OFFLINE_METERS')
# check relation with tenants
cursor.execute(" SELECT id "
" FROM tbl_tenants "
" WHERE cost_center_id = %s ", (id_,))
rows_tenants = cursor.fetchall()
if rows_tenants is not None and len(rows_tenants) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_TENANTS')
# check relation with stores
cursor.execute(" SELECT id "
" FROM tbl_stores "
" WHERE cost_center_id = %s ", (id_,))
rows_stores = cursor.fetchall()
if rows_stores is not None and len(rows_stores) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_STORES')
# check relation with spaces
cursor.execute(" SELECT id "
" FROM tbl_spaces "
" WHERE cost_center_id = %s ", (id_,))
rows_factories = cursor.fetchall()
if rows_factories is not None and len(rows_factories) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_SPACES')
# check relation with shopfloors
cursor.execute(" SELECT id "
" FROM tbl_shopfloors "
" WHERE cost_center_id = %s ", (id_,))
rows_shopfloors = cursor.fetchall()
if rows_shopfloors is not None and len(rows_shopfloors) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.THERE_IS_RELATION_WITH_SHOPFLOORS')
# delete relation with tariffs
cursor.execute(" DELETE FROM tbl_cost_centers_tariffs WHERE cost_center_id = %s ", (id_,))
cursor.execute(" DELETE FROM tbl_cost_centers WHERE id = %s ", (id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204
@staticmethod
@user_logger
def on_put(req, resp, id_):
"""Handles PUT requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or len(new_values['data']['name']) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_NAME_VALUE')
name = str.strip(new_values['data']['name'])
if 'external_id' in new_values['data'].keys() and \
new_values['data']['external_id'] is not None and \
len(str(new_values['data']['external_id'])) > 0:
external_id = str.strip(new_values['data']['external_id'])
else:
external_id = None
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE name = %s AND id != %s ",
(name, id_, ))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.COST_CENTER_NAME_EXISTS')
if external_id is not None:
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE external_id = %s AND id != %s ",
(external_id, id_, ))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.COST_CENTER_EXTERNAL_ID_EXISTS')
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404,
title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
update_row = (" UPDATE tbl_cost_centers "
" SET name = %s, external_id = %s "
" WHERE id = %s ")
cursor.execute(update_row, (name,
external_id,
id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200
class CostCenterTariffCollection:
def __init__(self):
""""Initializes CostCenterTariffCollection"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
"""Handles GET requests"""
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT t.id, t.name, t.uuid, "
" t.tariff_type, t.unit_of_price "
" FROM tbl_tariffs t, tbl_cost_centers_tariffs ct "
" WHERE t.id = ct.tariff_id AND ct.cost_center_id = %s "
" ORDER BY t.name ")
cursor.execute(query, (id_,))
rows = cursor.fetchall()
cursor.close()
cnx.close()
result = list()
if rows is not None and len(rows) > 0:
for row in rows:
meta_result = {"id": row[0],
"name": row[1],
"uuid": row[2],
"tariff_type": row[3],
"unit_of_price": row[4]}
result.append(meta_result)
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp, id_):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
new_values = json.loads(raw_json)
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_tariffs "
" WHERE id = %s ", (new_values['data']['tariff_id'],))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.TARIFF_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_cost_centers_tariffs "
" WHERE cost_center_id = %s AND tariff_id = %s ", (id_, new_values['data']['tariff_id']))
rows = cursor.fetchall()
if rows is not None and len(rows) > 0:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.TARIFF_IS_ALREADY_ASSOCIATED_WITH_COST_CENTER')
add_row = (" INSERT INTO tbl_cost_centers_tariffs "
" (cost_center_id, tariff_id) "
" VALUES (%s, %s) ")
cursor.execute(add_row, (id_, new_values['data']['tariff_id'],))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/costcenters/' + str(id_) + '/tariffs/' + str(new_values['data']['tariff_id'])
class CostCenterTariffItem:
def __init__(self):
""""Initializes CostCenterTariffItem"""
pass
@staticmethod
def on_options(req, resp, id_, tid):
resp.status = falcon.HTTP_200
@staticmethod
@user_logger
def on_delete(req, resp, id_, tid):
"""Handles DELETE requests"""
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_COST_CENTER_ID')
if not tid.isdigit() or int(tid) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_TARIFF_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_cost_centers "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.COST_CENTER_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_tariffs "
" WHERE id = %s ", (tid,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.TARIFF_NOT_FOUND')
cursor.execute(" SELECT id "
" FROM tbl_cost_centers_tariffs "
" WHERE cost_center_id = %s AND tariff_id = %s ", (id_, tid))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.TARIFF_IS_NOT_ASSOCIATED_WITH_COST_CENTER')
cursor.execute(" DELETE FROM tbl_cost_centers_tariffs "
" WHERE cost_center_id = %s AND tariff_id = %s ", (id_, tid))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204