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import base64 |
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import uuid |
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import os |
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from openpyxl.chart import ( |
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BarChart, |
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Reference, |
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Series |
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) |
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from openpyxl.styles import PatternFill, Border, Side, Alignment, Font |
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from openpyxl.drawing.image import Image |
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from openpyxl import Workbook |
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from openpyxl.chart.label import DataLabelList |
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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 excelexporters file |
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# Step 3: Encode the excelexporters file to Base64 |
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#################################################################################################################### |
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def export(report, name, reporting_start_datetime_local, reporting_end_datetime_local, period_type): |
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#################################################################################################################### |
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# Step 1: Validate the report data |
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#################################################################################################################### |
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if report is None: |
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return None |
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if "reporting_period" not in report.keys() or \ |
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"values" not in report['reporting_period'].keys() or len(report['reporting_period']['values']) == 0: |
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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(report, |
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name, |
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reporting_start_datetime_local, |
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reporting_end_datetime_local, |
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period_type) |
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#################################################################################################################### |
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# Step 3: Encode the excel file to Base64 |
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#################################################################################################################### |
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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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pass |
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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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pass |
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return base64_message |
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def generate_excel(report, name, reporting_start_datetime_local, reporting_end_datetime_local, period_type): |
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wb = Workbook() |
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# todo |
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ws = wb.active |
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# Row height |
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ws.row_dimensions[1].height = 118 |
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for i in range(2, 11 + 1): |
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ws.row_dimensions[i].height = 30 |
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for i in range(12, 43 + 1): |
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ws.row_dimensions[i].height = 30 |
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# Col width |
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ws.column_dimensions['A'].width = 1.5 |
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for i in range(ord('B'), ord('I')): |
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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='Constantia', size=15, bold=True) |
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title_font = Font(name='宋体', size=15, bold=True) |
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data_font = Font(name='Franklin Gothic Book', size=11) |
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table_fill = PatternFill(fill_type='solid', fgColor='1F497D') |
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f_border = Border(left=Side(border_style='medium', color='00000000'), |
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right=Side(border_style='medium', color='00000000'), |
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bottom=Side(border_style='medium', color='00000000'), |
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top=Side(border_style='medium', color='00000000') |
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) |
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b_border = Border( |
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bottom=Side(border_style='medium', color='00000000'), |
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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=False, |
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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=False, |
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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=False, |
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shrink_to_fit=False, |
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indent=0) |
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c_r_alignment = Alignment(vertical='bottom', |
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horizontal='center', |
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text_rotation=0, |
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wrap_text=False, |
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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, 'B1') |
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# Title |
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ws['B3'].font = name_font |
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ws['B3'].alignment = b_r_alignment |
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ws['B3'] = 'Name:' |
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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'].font = name_font |
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ws['C3'] = name |
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ws['D3'].font = name_font |
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ws['D3'].alignment = b_r_alignment |
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ws['D3'] = 'Period:' |
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ws['E3'].border = b_border |
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ws['E3'].alignment = b_c_alignment |
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ws['E3'].font = name_font |
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ws['E3'] = period_type |
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ws['F3'].font = name_font |
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ws['F3'].alignment = b_r_alignment |
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ws['F3'] = 'Date:' |
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ws['G3'].border = b_border |
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ws['G3'].alignment = b_c_alignment |
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ws['G3'].font = name_font |
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ws['G3'] = reporting_start_datetime_local + "__" + reporting_end_datetime_local |
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# ws.merge_cells("G3:H3") |
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if "reporting_period" not in report.keys() or \ |
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"values" not in report['reporting_period'].keys() or len(report['reporting_period']['values']) == 0: |
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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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############################### |
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# First:能耗成本总览 |
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############################### |
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has_cost_data_flag = True |
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if "values" not in report['reporting_period'].keys() or len(report['reporting_period']['values']) == 0: |
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has_cost_data_flag = False |
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if has_cost_data_flag: |
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ws['B6'].font = title_font |
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ws['B6'] = name + '能耗成本总览' |
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reporting_period_data = report['reporting_period'] |
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category = report['meter']['energy_category_name'] |
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ca_len = len(category) |
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ws['B7'].fill = table_fill |
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ws['B8'].font = title_font |
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ws['B8'].alignment = c_c_alignment |
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ws['B8'] = '成本' |
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ws['B8'].border = f_border |
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ws['B9'].font = title_font |
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ws['B9'].alignment = c_c_alignment |
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ws['B9'] = '环比' |
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ws['B9'].border = f_border |
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for i in range(0, ca_len): |
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col = chr(ord('C')+i) |
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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['meter']['energy_category_name'] + " (" + report['meter']['unit_of_measure'] + ")" |
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ws[col + '7'].border = f_border |
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ws[col + '8'].font = name_font |
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ws[col + '8'].alignment = c_c_alignment |
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ws[col + '8'] = round(reporting_period_data['total_in_category'], 0) |
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ws[col + '8'].border = f_border |
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ws[col + '9'].font = name_font |
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ws[col + '9'].alignment = c_c_alignment |
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ws[col + '9'] = str(round(reporting_period_data['increment_rate'] * 100, 2)) + "%" \ |
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if reporting_period_data['increment_rate'] is not None else "-" |
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ws[col + '9'].border = f_border |
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else: |
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for i in range(6, 9+1): |
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ws.rows_dimensions[i].height = 0.1 |
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###################################### |
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# Second:能耗成本详情 |
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###################################### |
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has_cost_datail_flag = True |
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reporting_period_data = report['reporting_period'] |
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times = reporting_period_data['timestamps'] |
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if "values" not in reporting_period_data.keys() or len(reporting_period_data['values']) == 0: |
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has_cost_datail_flag = False |
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if has_cost_datail_flag: |
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ws['B11'].font = title_font |
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ws['B11'] = name + '能耗成本详情' |
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ws['B18'].fill = table_fill |
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ws['B18'].font = title_font |
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ws['B18'].border = f_border |
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ws['B18'].alignment = c_c_alignment |
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ws['B18'] = '时间' |
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time = times |
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has_data = False |
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max_row = 0 |
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if len(time) > 0: |
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has_data = True |
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max_row = 18 + len(time) |
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if has_data: |
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for i in range(0, len(time)): |
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col = 'B' |
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row = str(19+i) |
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ws[col + row].font = title_font |
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ws[col + row].alignment = c_c_alignment |
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ws[col + row] = time[i] |
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ws[col + row].border = f_border |
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bar = BarChart() |
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for i in range(0, ca_len): |
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col = chr(ord('C') + i) |
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ws[col + '18'].fill = table_fill |
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ws[col + '18'].font = title_font |
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ws[col + '18'].alignment = c_c_alignment |
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ws[col + '18'] = report['meter']['energy_category_name'] + \ |
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" (" + report['meter']['unit_of_measure'] + ")" |
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ws[col + '18'].border = f_border |
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time = times |
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time_len = len(time) |
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for j in range(0, time_len): |
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row = str(19 + j) |
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ws[col + row].font = title_font |
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ws[col + row].alignment = c_c_alignment |
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ws[col + row] = round(reporting_period_data['values'][j], 0) |
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ws[col + row].border = f_border |
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bar_data = Reference(ws, min_col=3 + i, min_row=18, max_row=max_row + 1) |
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bar.series.append(Series(bar_data, title_from_data=True)) |
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labels = Reference(ws, min_col=2, min_row=19, max_row=max_row + 1) |
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bar.set_categories(labels) |
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bar.dLbls = DataLabelList() |
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bar.dLbls.showVal = True |
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bar.height = 5.25 |
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bar.width = len(time) |
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ws.add_chart(bar, "B12") |
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else: |
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for i in range(11, 43 + 1): |
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ws.row_dimensions[i].height = 0.0 |
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286
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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-api
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