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import base64 |
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from core.utilities import get_translation |
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import os |
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import uuid |
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from openpyxl import Workbook |
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from openpyxl.drawing.image import Image |
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from openpyxl.styles import PatternFill, Border, Side, Alignment, Font |
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from openpyxl.utils import column_index_from_string, get_column_letter |
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######################################################################################################################## |
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# PROCEDURES |
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# Step 1: Validate the report data |
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# Step 2: Generate excel file from the report data |
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# Step 3: Encode the excel file to Base64 |
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######################################################################################################################## |
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def export(result, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
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#################################################################################################################### |
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# Step 1: Validate the report data |
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#################################################################################################################### |
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if result is None: |
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return None |
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#################################################################################################################### |
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# Step 2: Generate excel file from the report data |
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#################################################################################################################### |
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filename = generate_excel(result, |
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space_name, |
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reporting_start_datetime_local, |
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reporting_end_datetime_local, |
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language) |
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#################################################################################################################### |
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# Step 3: Encode the excel file to Base64 |
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#################################################################################################################### |
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binary_file_data = b'' |
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try: |
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with open(filename, 'rb') as binary_file: |
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binary_file_data = binary_file.read() |
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except IOError as ex: |
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print(str(ex)) |
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# Base64 encode the bytes |
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base64_encoded_data = base64.b64encode(binary_file_data) |
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# get the Base64 encoded data using human-readable characters. |
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base64_message = base64_encoded_data.decode('utf-8') |
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# delete the file from server |
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try: |
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os.remove(filename) |
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except NotImplementedError as ex: |
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print(str(ex)) |
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return base64_message |
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def generate_excel(report, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
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trans = get_translation(language) |
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trans.install() |
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_ = trans.gettext |
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wb = Workbook() |
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ws = wb.active |
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ws.title = "TenantBatch" |
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# Row height |
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ws.row_dimensions[1].height = 102 |
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for i in range(2, 5 + 1): |
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ws.row_dimensions[i].height = 42 |
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for i in range(6, len(report['tenants']) + 15): |
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ws.row_dimensions[i].height = 60 |
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# Col width |
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ws.column_dimensions['A'].width = 1.5 |
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ws.column_dimensions['B'].width = 25.0 |
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for i in range(ord('C'), ord('L')): |
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ws.column_dimensions[chr(i)].width = 15.0 |
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# Font |
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name_font = Font(name='Arial', size=15, bold=True) |
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title_font = Font(name='Arial', size=15, bold=True) |
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table_fill = PatternFill(fill_type='solid', fgColor='90ee90') |
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f_border = Border(left=Side(border_style='medium'), |
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right=Side(border_style='medium'), |
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bottom=Side(border_style='medium'), |
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top=Side(border_style='medium') |
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) |
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b_border = Border( |
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bottom=Side(border_style='medium'), |
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) |
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b_c_alignment = Alignment(vertical='bottom', |
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horizontal='center', |
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text_rotation=0, |
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wrap_text=True, |
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shrink_to_fit=False, |
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indent=0) |
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c_c_alignment = Alignment(vertical='center', |
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horizontal='center', |
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text_rotation=0, |
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wrap_text=True, |
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shrink_to_fit=False, |
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indent=0) |
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b_r_alignment = Alignment(vertical='bottom', |
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horizontal='right', |
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text_rotation=0, |
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wrap_text=True, |
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shrink_to_fit=False, |
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indent=0) |
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# Img |
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img = Image("excelexporters/myems.png") |
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ws.add_image(img, 'A1') |
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# Title |
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ws['B3'].alignment = b_r_alignment |
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ws['B3'] = _('Space') + ':' |
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ws['C3'].border = b_border |
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ws['C3'].alignment = b_c_alignment |
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ws['C3'] = space_name |
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ws['B4'].alignment = b_r_alignment |
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ws['B4'] = _('Reporting Start Datetime') + ':' |
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ws['C4'].border = b_border |
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ws['C4'].alignment = b_c_alignment |
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ws['C4'] = reporting_start_datetime_local |
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ws['B5'].alignment = b_r_alignment |
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ws['B5'] = _('Reporting End Datetime') + ':' |
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ws['C5'].border = b_border |
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ws['C5'].alignment = b_c_alignment |
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ws['C5'] = reporting_end_datetime_local |
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# Title |
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ws['B7'].border = f_border |
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ws['B7'].font = name_font |
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ws['B7'].alignment = c_c_alignment |
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ws['B7'].fill = table_fill |
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ws['B7'] = _('Name') + ':' |
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ws['C7'].border = f_border |
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ws['C7'].alignment = c_c_alignment |
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ws['C7'].font = name_font |
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ws['C7'].fill = table_fill |
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ws['C7'] = _('Space') + ':' |
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ca_len = len(report['energycategories']) |
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for i in range(0, ca_len): |
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col = get_column_letter(column_index_from_string('D') + i * 2) |
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ws[col + '7'].fill = table_fill |
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ws[col + '7'].font = name_font |
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ws[col + '7'].alignment = c_c_alignment |
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ws[col + '7'] = report['energycategories'][i]['name'] + \ |
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" (" + report['energycategories'][i]['unit_of_measure'] + ")" |
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ws[col + '7'].border = f_border |
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col = get_column_letter(column_index_from_string(col) + 1) |
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ws[col + '7'].fill = table_fill |
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ws[col + '7'].font = name_font |
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ws[col + '7'].alignment = c_c_alignment |
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ws[col + '7'] = report['energycategories'][i]['name'] + \ |
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" " + _('Maximum Load') + " (" + report['energycategories'][i]['unit_of_measure'] + ")" |
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ws[col + '7'].border = f_border |
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current_row_number = 8 |
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for i in range(0, len(report['tenants'])): |
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ws['B' + str(current_row_number)].font = title_font |
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ws['B' + str(current_row_number)].border = f_border |
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ws['B' + str(current_row_number)].alignment = c_c_alignment |
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ws['B' + str(current_row_number)] = report['tenants'][i]['tenant_name'] |
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ws['C' + str(current_row_number)].font = title_font |
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ws['C' + str(current_row_number)].border = f_border |
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ws['C' + str(current_row_number)].alignment = c_c_alignment |
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ws['C' + str(current_row_number)] = report['tenants'][i]['space_name'] |
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ca_len = len(report['tenants'][i]['values']) |
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for j in range(0, ca_len): |
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col = get_column_letter(column_index_from_string('D') + j * 2) |
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ws[col + str(current_row_number)].font = title_font |
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ws[col + str(current_row_number)].border = f_border |
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ws[col + str(current_row_number)].alignment = c_c_alignment |
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ws[col + str(current_row_number)] = report['tenants'][i]['values'][j] |
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col = get_column_letter(column_index_from_string(col) + 1) |
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ws[col + str(current_row_number)].font = title_font |
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ws[col + str(current_row_number)].border = f_border |
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ws[col + str(current_row_number)].alignment = c_c_alignment |
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ws[col + str(current_row_number)] = report['tenants'][i]['maximum'][j] |
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current_row_number += 1 |
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filename = str(uuid.uuid4()) + '.xlsx' |
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wb.save(filename) |
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return filename |
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MyEMS /
myems
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