1 | import falcon |
||
2 | import simplejson as json |
||
3 | import mysql.connector |
||
4 | import config |
||
5 | import uuid |
||
6 | |||
7 | |||
8 | class EnergyItemCollection: |
||
9 | @staticmethod |
||
10 | def __init__(): |
||
11 | pass |
||
12 | |||
13 | @staticmethod |
||
14 | def on_options(req, resp): |
||
15 | resp.status = falcon.HTTP_200 |
||
16 | |||
17 | @staticmethod |
||
18 | def on_get(req, resp): |
||
19 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
20 | cursor = cnx.cursor(dictionary=True) |
||
21 | |||
22 | query = (" SELECT id, name, uuid " |
||
23 | " FROM tbl_energy_categories ") |
||
24 | cursor.execute(query) |
||
25 | rows_energy_categories = cursor.fetchall() |
||
26 | |||
27 | energy_category_dict = dict() |
||
28 | if rows_energy_categories is not None and len(rows_energy_categories) > 0: |
||
29 | for row in rows_energy_categories: |
||
30 | energy_category_dict[row['id']] = {"id": row['id'], |
||
31 | "name": row['name'], |
||
32 | "uuid": row['uuid']} |
||
33 | |||
34 | query = (" SELECT id, name, uuid, energy_category_id " |
||
35 | " FROM tbl_energy_items " |
||
36 | " ORDER BY id ") |
||
37 | cursor.execute(query) |
||
38 | rows = cursor.fetchall() |
||
39 | cursor.close() |
||
40 | cnx.disconnect() |
||
41 | |||
42 | result = list() |
||
43 | if rows is not None and len(rows) > 0: |
||
44 | for row in rows: |
||
45 | energy_category = energy_category_dict.get(row['energy_category_id'], None) |
||
46 | meta_result = {"id": row['id'], "name": row['name'], "uuid": row['uuid'], |
||
47 | "energy_category": energy_category} |
||
48 | result.append(meta_result) |
||
49 | |||
50 | resp.body = json.dumps(result) |
||
51 | |||
52 | @staticmethod |
||
53 | def on_post(req, resp): |
||
54 | """Handles POST requests""" |
||
55 | try: |
||
56 | raw_json = req.stream.read().decode('utf-8') |
||
57 | except Exception as ex: |
||
58 | raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR', description=ex) |
||
59 | |||
60 | new_values = json.loads(raw_json) |
||
61 | |||
62 | if 'name' not in new_values['data'].keys() or \ |
||
63 | not isinstance(new_values['data']['name'], str) or \ |
||
64 | len(str.strip(new_values['data']['name'])) == 0: |
||
65 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
66 | description='API.INVALID_ENERGY_ITEM_NAME') |
||
67 | |||
68 | name = str.strip(new_values['data']['name']) |
||
69 | |||
70 | if 'energy_category_id' not in new_values['data'].keys() or \ |
||
71 | new_values['data']['energy_category_id'] <= 0: |
||
72 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
73 | description='API.INVALID_ENERGY_CATEGORY_ID') |
||
74 | energy_category_id = new_values['data']['energy_category_id'] |
||
75 | |||
76 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
77 | cursor = cnx.cursor() |
||
78 | |||
79 | cursor.execute(" SELECT name " |
||
80 | " FROM tbl_energy_items " |
||
81 | " WHERE name = %s ", (name,)) |
||
82 | if cursor.fetchone() is not None: |
||
83 | cursor.close() |
||
84 | cnx.disconnect() |
||
85 | raise falcon.HTTPError(falcon.HTTP_404, title='API.BAD_REQUEST', |
||
86 | description='API.ENERGY_ITEM_NAME_IS_ALREADY_IN_USE') |
||
87 | |||
88 | cursor.execute(" SELECT name " |
||
89 | " FROM tbl_energy_categories " |
||
90 | " WHERE id = %s ", |
||
91 | (energy_category_id,)) |
||
92 | if cursor.fetchone() is None: |
||
93 | cursor.close() |
||
94 | cnx.disconnect() |
||
95 | raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
||
96 | description='API.ENERGY_CATEGORY_NOT_FOUND') |
||
97 | |||
98 | add_value = (" INSERT INTO tbl_energy_items " |
||
99 | " (name, uuid, energy_category_id) " |
||
100 | " VALUES (%s, %s, %s) ") |
||
101 | cursor.execute(add_value, (name, |
||
102 | str(uuid.uuid4()), |
||
103 | energy_category_id)) |
||
104 | new_id = cursor.lastrowid |
||
105 | cnx.commit() |
||
106 | cursor.close() |
||
107 | cnx.disconnect() |
||
108 | |||
109 | resp.status = falcon.HTTP_201 |
||
110 | resp.location = '/energyitems/' + str(new_id) |
||
111 | |||
112 | |||
113 | class EnergyItemItem: |
||
114 | @staticmethod |
||
115 | def __init__(): |
||
116 | pass |
||
117 | |||
118 | @staticmethod |
||
119 | def on_options(req, resp, id_): |
||
120 | resp.status = falcon.HTTP_200 |
||
121 | |||
122 | @staticmethod |
||
123 | def on_get(req, resp, id_): |
||
124 | if not id_.isdigit() or int(id_) <= 0: |
||
125 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
126 | description='API.INVALID_ENERGY_ITEM_ID') |
||
127 | |||
128 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
129 | cursor = cnx.cursor(dictionary=True) |
||
130 | |||
131 | query = (" SELECT id, name, uuid " |
||
132 | " FROM tbl_energy_categories ") |
||
133 | cursor.execute(query) |
||
134 | rows_energy_categories = cursor.fetchall() |
||
135 | |||
136 | energy_category_dict = dict() |
||
137 | if rows_energy_categories is not None and len(rows_energy_categories) > 0: |
||
138 | for row in rows_energy_categories: |
||
139 | energy_category_dict[row['id']] = {"id": row['id'], |
||
140 | "name": row['name'], |
||
141 | "uuid": row['uuid']} |
||
142 | |||
143 | query = (" SELECT id, name, uuid, energy_category_id " |
||
144 | " FROM tbl_energy_items " |
||
145 | " WHERE id =%s ") |
||
146 | cursor.execute(query, (id_,)) |
||
147 | row = cursor.fetchone() |
||
148 | cursor.close() |
||
149 | cnx.disconnect() |
||
150 | if row is None: |
||
151 | raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
||
152 | description='API.ENERGY_ITEM_NOT_FOUND') |
||
153 | |||
154 | energy_category = energy_category_dict.get(row['energy_category_id'], None) |
||
155 | result = {"id": row['id'], |
||
156 | "name": row['name'], |
||
157 | "uuid": row['uuid'], |
||
158 | "energy_category": energy_category} |
||
159 | resp.body = json.dumps(result) |
||
160 | |||
161 | View Code Duplication | @staticmethod |
|
0 ignored issues
–
show
Duplication
introduced
by
![]() |
|||
162 | def on_delete(req, resp, id_): |
||
163 | if not id_.isdigit() or int(id_) <= 0: |
||
164 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
165 | description='API.INVALID_ENERGY_ITEM_ID') |
||
166 | |||
167 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
168 | cursor = cnx.cursor() |
||
169 | |||
170 | cursor.execute(" SELECT name " |
||
171 | " FROM tbl_energy_items " |
||
172 | " WHERE id = %s ", (id_,)) |
||
173 | if cursor.fetchone() is None: |
||
174 | cursor.close() |
||
175 | cnx.disconnect() |
||
176 | raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
||
177 | description='API.ENERGY_ITEM_NOT_FOUND') |
||
178 | |||
179 | cursor.execute(" SELECT id " |
||
180 | " FROM tbl_meters " |
||
181 | " WHERE energy_item_id = %s ", (id_,)) |
||
182 | rows_meters = cursor.fetchall() |
||
183 | if rows_meters is not None and len(rows_meters) > 0: |
||
184 | cursor.close() |
||
185 | cnx.disconnect() |
||
186 | raise falcon.HTTPError(falcon.HTTP_400, |
||
187 | title='API.BAD_REQUEST', |
||
188 | description='API.ENERGY_ITEM_USED_IN_METER') |
||
189 | |||
190 | cursor.execute(" SELECT id " |
||
191 | " FROM tbl_virtual_meters " |
||
192 | " WHERE energy_item_id = %s ", (id_,)) |
||
193 | rows_virtual_meters = cursor.fetchall() |
||
194 | if rows_virtual_meters is not None and len(rows_virtual_meters) > 0: |
||
195 | cursor.close() |
||
196 | cnx.disconnect() |
||
197 | raise falcon.HTTPError(falcon.HTTP_400, |
||
198 | title='API.BAD_REQUEST', |
||
199 | description='API.ENERGY_ITEM_USED_IN_VIRTUAL_METER') |
||
200 | |||
201 | cursor.execute(" SELECT id " |
||
202 | " FROM tbl_offline_meters " |
||
203 | " WHERE energy_item_id = %s ", (id_,)) |
||
204 | rows_offline_meters = cursor.fetchall() |
||
205 | if rows_offline_meters is not None and len(rows_offline_meters) > 0: |
||
206 | cursor.close() |
||
207 | cnx.disconnect() |
||
208 | raise falcon.HTTPError(falcon.HTTP_400, |
||
209 | title='API.BAD_REQUEST', |
||
210 | description='API.ENERGY_ITEM_USED_IN_OFFLINE_METER') |
||
211 | |||
212 | cursor.execute(" DELETE FROM tbl_energy_items WHERE id = %s ", (id_,)) |
||
213 | cnx.commit() |
||
214 | |||
215 | cursor.close() |
||
216 | cnx.disconnect() |
||
217 | resp.status = falcon.HTTP_204 |
||
218 | |||
219 | @staticmethod |
||
220 | def on_put(req, resp, id_): |
||
221 | """Handles PUT requests""" |
||
222 | try: |
||
223 | raw_json = req.stream.read().decode('utf-8') |
||
224 | except Exception as ex: |
||
225 | raise falcon.HTTPError(falcon.HTTP_400, title='API.EXCEPTION', description=ex) |
||
226 | |||
227 | if not id_.isdigit() or int(id_) <= 0: |
||
228 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
229 | description='API.INVALID_ENERGY_ITEM_ID') |
||
230 | |||
231 | new_values = json.loads(raw_json) |
||
232 | if 'name' not in new_values['data'].keys() or \ |
||
233 | not isinstance(new_values['data']['name'], str) or \ |
||
234 | len(str.strip(new_values['data']['name'])) == 0: |
||
235 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
236 | description='API.INVALID_ENERGY_ITEM_NAME') |
||
237 | |||
238 | name = str.strip(new_values['data']['name']) |
||
239 | |||
240 | if 'energy_category_id' not in new_values['data'].keys() or new_values['data']['energy_category_id'] <= 0: |
||
241 | raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', |
||
242 | description='API.INVALID_ENERGY_CATEGORY_ID') |
||
243 | energy_category_id = new_values['data']['energy_category_id'] |
||
244 | |||
245 | cnx = mysql.connector.connect(**config.myems_system_db) |
||
246 | cursor = cnx.cursor() |
||
247 | |||
248 | cursor.execute(" SELECT name " |
||
249 | " FROM tbl_energy_items " |
||
250 | " WHERE id = %s ", (id_,)) |
||
251 | if cursor.fetchone() is None: |
||
252 | cursor.close() |
||
253 | cnx.disconnect() |
||
254 | raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
||
255 | description='API.ENERGY_ITEM_NOT_FOUND') |
||
256 | |||
257 | cursor.execute(" SELECT name " |
||
258 | " FROM tbl_energy_items " |
||
259 | " WHERE name = %s AND id != %s ", (name, id_)) |
||
260 | if cursor.fetchone() is not None: |
||
261 | cursor.close() |
||
262 | cnx.disconnect() |
||
263 | raise falcon.HTTPError(falcon.HTTP_404, title='API.BAD_REQUEST', |
||
264 | description='API.ENERGY_ITEM_NAME_IS_ALREADY_IN_USE') |
||
265 | |||
266 | cursor.execute(" SELECT name " |
||
267 | " FROM tbl_energy_categories " |
||
268 | " WHERE id = %s ", |
||
269 | (energy_category_id,)) |
||
270 | if cursor.fetchone() is None: |
||
271 | cursor.close() |
||
272 | cnx.disconnect() |
||
273 | raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
||
274 | description='API.ENERGY_CATEGORY_NOT_FOUND') |
||
275 | |||
276 | update_row = (" UPDATE tbl_energy_items " |
||
277 | " SET name = %s, energy_category_id = %s " |
||
278 | " WHERE id = %s ") |
||
279 | cursor.execute(update_row, (name, |
||
280 | energy_category_id, |
||
281 | id_,)) |
||
282 | cnx.commit() |
||
283 | cursor.close() |
||
284 | cnx.disconnect() |
||
285 | resp.status = falcon.HTTP_200 |
||
286 | |||
287 |