myems-api/excelexporters/shopfloorbatch.py
import base64
from core.utilities import get_translation
import os
import uuid
from openpyxl import Workbook
from openpyxl.drawing.image import Image
from openpyxl.styles import PatternFill, Border, Side, Alignment, Font
from core.utilities import round2
####################################################################################################################
# PROCEDURES
# Step 1: Validate the report data
# Step 2: Generate excelexporters file
# Step 3: Encode the excelexporters file to Base64
####################################################################################################################
def export(result, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language):
####################################################################################################################
# Step 1: Validate the report data
####################################################################################################################
if result is None:
return None
####################################################################################################################
# Step 2: Generate excel file from the report data
####################################################################################################################
filename = generate_excel(result,
space_name,
reporting_start_datetime_local,
reporting_end_datetime_local,
language)
####################################################################################################################
# Step 3: Encode the excel file to Base64
####################################################################################################################
binary_file_data = b''
try:
with open(filename, 'rb') as binary_file:
binary_file_data = binary_file.read()
except IOError as ex:
print(str(ex))
# Base64 encode the bytes
base64_encoded_data = base64.b64encode(binary_file_data)
# get the Base64 encoded data using human-readable characters.
base64_message = base64_encoded_data.decode('utf-8')
# delete the file from server
try:
os.remove(filename)
except NotImplementedError as ex:
print(str(ex))
return base64_message
def generate_excel(report, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language):
trans = get_translation(language)
trans.install()
_ = trans.gettext
wb = Workbook()
ws = wb.active
ws.title = "ShopFloorBatch"
# Row height
ws.row_dimensions[1].height = 102
for i in range(2, 5 + 1):
ws.row_dimensions[i].height = 42
for i in range(6, len(report['shopfloors']) + 15):
ws.row_dimensions[i].height = 60
# Col width
ws.column_dimensions['A'].width = 1.5
ws.column_dimensions['B'].width = 25.0
for i in range(ord('C'), ord('L')):
ws.column_dimensions[chr(i)].width = 15.0
# Font
name_font = Font(name='Arial', size=15, bold=True)
title_font = Font(name='Arial', size=15, bold=True)
data_font = Font(name='Franklin Gothic Book', size=11)
table_fill = PatternFill(fill_type='solid', fgColor='90ee90')
f_border = Border(left=Side(border_style='medium'),
right=Side(border_style='medium'),
bottom=Side(border_style='medium'),
top=Side(border_style='medium')
)
b_border = Border(
bottom=Side(border_style='medium'),
)
b_c_alignment = Alignment(vertical='bottom',
horizontal='center',
text_rotation=0,
wrap_text=True,
shrink_to_fit=False,
indent=0)
c_c_alignment = Alignment(vertical='center',
horizontal='center',
text_rotation=0,
wrap_text=True,
shrink_to_fit=False,
indent=0)
b_r_alignment = Alignment(vertical='bottom',
horizontal='right',
text_rotation=0,
wrap_text=True,
shrink_to_fit=False,
indent=0)
# Img
img = Image("excelexporters/myems.png")
ws.add_image(img, 'A1')
# Title
ws['B3'].alignment = b_r_alignment
ws['B3'] = _('Space') + ':'
ws['C3'].border = b_border
ws['C3'].alignment = b_c_alignment
ws['C3'] = space_name
ws['B4'].alignment = b_r_alignment
ws['B4'] = _('Reporting Start Datetime') + ':'
ws['C4'].border = b_border
ws['C4'].alignment = b_c_alignment
ws['C4'] = reporting_start_datetime_local
ws['B5'].alignment = b_r_alignment
ws['B5'] = _('Reporting End Datetime') + ':'
ws['C5'].border = b_border
ws['C5'].alignment = b_c_alignment
ws['C5'] = reporting_end_datetime_local
# Title
ws['B6'].border = f_border
ws['B6'].font = name_font
ws['B6'].alignment = c_c_alignment
ws['B6'].fill = table_fill
ws['B6'] = _('Name')
ws['C6'].border = f_border
ws['C6'].alignment = c_c_alignment
ws['C6'].font = name_font
ws['C6'].fill = table_fill
ws['C6'] = _('Space')
ca_len = len(report['energycategories'])
for i in range(0, ca_len):
col = chr(ord('D') + i)
ws[col + '6'].fill = table_fill
ws[col + '6'].font = name_font
ws[col + '6'].alignment = c_c_alignment
ws[col + '6'] = report['energycategories'][i]['name'] + \
" (" + report['energycategories'][i]['unit_of_measure'] + ")"
ws[col + '6'].border = f_border
current_row_number = 7
for i in range(0, len(report['shopfloors'])):
ws['B' + str(current_row_number)].font = title_font
ws['B' + str(current_row_number)].border = f_border
ws['B' + str(current_row_number)].alignment = c_c_alignment
ws['B' + str(current_row_number)] = report['shopfloors'][i]['shopfloor_name']
ws['C' + str(current_row_number)].font = title_font
ws['C' + str(current_row_number)].border = f_border
ws['C' + str(current_row_number)].alignment = c_c_alignment
ws['C' + str(current_row_number)] = report['shopfloors'][i]['space_name']
ca_len = len(report['shopfloors'][i]['values'])
for j in range(0, ca_len):
col = chr(ord('D') + j)
ws[col + str(current_row_number)].font = data_font
ws[col + str(current_row_number)].border = f_border
ws[col + str(current_row_number)].alignment = c_c_alignment
ws[col + str(current_row_number)] = round2(report['shopfloors'][i]['values'][j], 2)
current_row_number += 1
filename = str(uuid.uuid4()) + '.xlsx'
wb.save(filename)
return filename