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import falcon |
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import simplejson as json |
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import mysql.connector |
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import config |
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from anytree import Node, AnyNode, LevelOrderIter |
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import excelexporters.equipmenttracking |
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View Code Duplication |
class Reporting: |
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@staticmethod |
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def __init__(): |
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pass |
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@staticmethod |
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def on_options(req, resp): |
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resp.status = falcon.HTTP_200 |
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#################################################################################################################### |
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# PROCEDURES |
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# Step 1: valid parameters |
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# Step 2: build a space tree |
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# Step 3: query all equipments in the space tree |
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# Step 4: construct the report |
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#################################################################################################################### |
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@staticmethod |
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def on_get(req, resp): |
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print(req.params) |
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space_id = req.params.get('spaceid') |
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################################################################################################################ |
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# Step 1: valid parameters |
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################################################################################################################ |
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if space_id is None: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_SPACE_ID') |
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else: |
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space_id = str.strip(space_id) |
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if not space_id.isdigit() or int(space_id) <= 0: |
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_SPACE_ID') |
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else: |
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space_id = int(space_id) |
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cnx = mysql.connector.connect(**config.myems_system_db) |
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cursor = cnx.cursor(dictionary=True) |
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cursor.execute(" SELECT name " |
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" FROM tbl_spaces " |
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" WHERE id = %s ", (space_id,)) |
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row = cursor.fetchone() |
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if row is None: |
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if cursor: |
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cursor.close() |
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if cnx: |
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cnx.disconnect() |
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', |
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description='API.SPACE_NOT_FOUND') |
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else: |
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space_name = row['name'] |
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################################################################################################################ |
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# Step 2: build a space tree |
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################################################################################################################ |
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query = (" SELECT id, name, parent_space_id " |
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" FROM tbl_spaces " |
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" ORDER BY id ") |
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cursor.execute(query) |
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rows_spaces = cursor.fetchall() |
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node_dict = dict() |
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if rows_spaces is not None and len(rows_spaces) > 0: |
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for row in rows_spaces: |
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parent_node = node_dict[row['parent_space_id']] if row['parent_space_id'] is not None else None |
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node_dict[row['id']] = AnyNode(id=row['id'], parent=parent_node, name=row['name']) |
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################################################################################################################ |
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# Step 3: query all equipments in the space tree |
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################################################################################################################ |
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equipment_list = list() |
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space_dict = dict() |
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for node in LevelOrderIter(node_dict[space_id]): |
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space_dict[node.id] = node.name |
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cursor.execute(" SELECT e.id, e.name AS equipment_name, s.name AS space_name, " |
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" cc.name AS cost_center_name, e.description " |
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" FROM tbl_spaces s, tbl_spaces_equipments se, tbl_equipments e, tbl_cost_centers cc " |
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" WHERE s.id IN ( " + ', '.join(map(str, space_dict.keys())) + ") " |
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" AND se.space_id = s.id " |
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" AND se.equipment_id = e.id " |
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" AND e.cost_center_id = cc.id ", ) |
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rows_equipments = cursor.fetchall() |
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if rows_equipments is not None and len(rows_equipments) > 0: |
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for row in rows_equipments: |
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equipment_list.append({"id": row['id'], |
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"equipment_name": row['equipment_name'], |
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"space_name": row['space_name'], |
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"cost_center_name": row['cost_center_name'], |
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"description": row['description']}) |
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if cursor: |
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cursor.close() |
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if cnx: |
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cnx.disconnect() |
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################################################################################################################ |
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# Step 4: construct the report |
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################################################################################################################ |
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result = {'equipments': equipment_list} |
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# export result to Excel file and then encode the file to base64 string |
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result['excel_bytes_base64'] = \ |
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excelexporters.equipmenttracking.export(result, |
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space_name) |
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resp.body = json.dumps(result) |
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myems /
myems-api
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