|
1
|
|
|
import base64 |
|
2
|
|
|
from core.utilities import get_translation |
|
3
|
|
|
import os |
|
4
|
|
|
import uuid |
|
5
|
|
|
from openpyxl import Workbook |
|
6
|
|
|
from openpyxl.drawing.image import Image |
|
7
|
|
|
from openpyxl.styles import Alignment, Font |
|
8
|
|
|
|
|
9
|
|
|
|
|
10
|
|
|
######################################################################################################################## |
|
11
|
|
|
# PROCEDURES |
|
12
|
|
|
# Step 1: Validate the report data |
|
13
|
|
|
# Step 2: Generate excel file from the report data |
|
14
|
|
|
# Step 3: Encode the excel file to Base64 |
|
15
|
|
|
######################################################################################################################## |
|
16
|
|
|
|
|
17
|
|
|
def export(result, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
|
18
|
|
|
#################################################################################################################### |
|
19
|
|
|
# Step 1: Validate the report data |
|
20
|
|
|
#################################################################################################################### |
|
21
|
|
|
if result is None: |
|
22
|
|
|
return None |
|
23
|
|
|
|
|
24
|
|
|
#################################################################################################################### |
|
25
|
|
|
# Step 2: Generate excel file from the report data |
|
26
|
|
|
#################################################################################################################### |
|
27
|
|
|
filename = generate_excel(result, |
|
28
|
|
|
space_name, |
|
29
|
|
|
reporting_start_datetime_local, |
|
30
|
|
|
reporting_end_datetime_local, |
|
31
|
|
|
language) |
|
32
|
|
|
#################################################################################################################### |
|
33
|
|
|
# Step 3: Encode the excel file to Base64 |
|
34
|
|
|
#################################################################################################################### |
|
35
|
|
|
binary_file_data = b'' |
|
36
|
|
|
try: |
|
37
|
|
|
with open(filename, 'rb') as binary_file: |
|
38
|
|
|
binary_file_data = binary_file.read() |
|
39
|
|
|
except IOError as ex: |
|
40
|
|
|
print(str(ex)) |
|
41
|
|
|
|
|
42
|
|
|
# Base64 encode the bytes |
|
43
|
|
|
base64_encoded_data = base64.b64encode(binary_file_data) |
|
44
|
|
|
# get the Base64 encoded data using human-readable characters. |
|
45
|
|
|
base64_message = base64_encoded_data.decode('utf-8') |
|
46
|
|
|
# delete the file from server |
|
47
|
|
|
try: |
|
48
|
|
|
os.remove(filename) |
|
49
|
|
|
except NotImplementedError as ex: |
|
50
|
|
|
print(str(ex)) |
|
51
|
|
|
return base64_message |
|
52
|
|
|
|
|
53
|
|
|
|
|
54
|
|
View Code Duplication |
def generate_excel(report, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
|
|
|
|
|
|
55
|
|
|
|
|
56
|
|
|
trans = get_translation(language) |
|
57
|
|
|
trans.install() |
|
58
|
|
|
_ = trans.gettext |
|
59
|
|
|
|
|
60
|
|
|
wb = Workbook() |
|
61
|
|
|
ws = wb.active |
|
62
|
|
|
ws.title = "OfflineMeterBatch" |
|
63
|
|
|
|
|
64
|
|
|
# Col width |
|
65
|
|
|
for i in range(ord('A'), ord('L')): |
|
66
|
|
|
ws.column_dimensions[chr(i)].width = 20.0 |
|
67
|
|
|
|
|
68
|
|
|
# Head image |
|
69
|
|
|
ws.row_dimensions[1].height = 105 |
|
70
|
|
|
img = Image("excelexporters/myems.png") |
|
71
|
|
|
ws.add_image(img, 'A1') |
|
72
|
|
|
|
|
73
|
|
|
# Query Parameters |
|
74
|
|
|
b_r_alignment = Alignment(vertical='bottom', |
|
75
|
|
|
horizontal='right', |
|
76
|
|
|
text_rotation=0, |
|
77
|
|
|
wrap_text=True, |
|
78
|
|
|
shrink_to_fit=False, |
|
79
|
|
|
indent=0) |
|
80
|
|
|
ws['A3'].alignment = b_r_alignment |
|
81
|
|
|
ws['A3'] = _('Space') + ':' |
|
82
|
|
|
ws['B3'] = space_name |
|
83
|
|
|
ws['A4'].alignment = b_r_alignment |
|
84
|
|
|
ws['A4'] = _('Start Datetime') + ':' |
|
85
|
|
|
ws['B4'] = reporting_start_datetime_local |
|
86
|
|
|
ws['A5'].alignment = b_r_alignment |
|
87
|
|
|
ws['A5'] = _('End Datetime') + ':' |
|
88
|
|
|
ws['B5'] = reporting_end_datetime_local |
|
89
|
|
|
|
|
90
|
|
|
# Title |
|
91
|
|
|
title_font = Font(size=12, bold=True) |
|
92
|
|
|
ws['A6'].font = title_font |
|
93
|
|
|
ws['A6'] = _('ID') |
|
94
|
|
|
ws['B6'].font = title_font |
|
95
|
|
|
ws['B6'] = _('Name') |
|
96
|
|
|
ws['C6'].font = title_font |
|
97
|
|
|
ws['C6'] = _('Space') |
|
98
|
|
|
|
|
99
|
|
|
ca_len = len(report['energycategories']) |
|
100
|
|
|
for i in range(0, ca_len): |
|
101
|
|
|
col = chr(ord('D') + i) |
|
102
|
|
|
ws[col + '6'].font = title_font |
|
103
|
|
|
ws[col + '6'] = report['energycategories'][i]['name'] + " (" + \ |
|
104
|
|
|
report['energycategories'][i]['unit_of_measure'] + ")" |
|
105
|
|
|
|
|
106
|
|
|
current_row_number = 7 |
|
107
|
|
|
for i in range(0, len(report['offline_meters'])): |
|
108
|
|
|
ws['A' + str(current_row_number)] = str(report['offline_meters'][i]['id']) |
|
|
|
|
|
|
109
|
|
|
ws['B' + str(current_row_number)] = report['offline_meters'][i]['offline_meter_name'] |
|
110
|
|
|
ws['C' + str(current_row_number)] = report['offline_meters'][i]['space_name'] |
|
111
|
|
|
ca_len = len(report['offline_meters'][i]['values']) |
|
112
|
|
|
for j in range(0, ca_len): |
|
113
|
|
|
col = chr(ord('D') + j) |
|
114
|
|
|
ws[col + str(current_row_number)] = report['offline_meters'][i]['values'][j] |
|
115
|
|
|
|
|
116
|
|
|
current_row_number += 1 |
|
117
|
|
|
|
|
118
|
|
|
filename = str(uuid.uuid4()) + '.xlsx' |
|
119
|
|
|
wb.save(filename) |
|
120
|
|
|
|
|
121
|
|
|
return filename |
|
122
|
|
|
|
MyEMS /
myems
17623517467
Loading history...