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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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) |
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from openpyxl.styles import PatternFill, Border, Side, Alignment, Protection, 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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View Code Duplication |
def export(result, space_name): |
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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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#################################################################################################################### |
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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, space_name): |
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wb = Workbook() |
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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, 5000 + 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 |
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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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for i in range(ord('B'), ord('G')): |
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ws.column_dimensions[chr(i)].width = 25.0 |
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# Img |
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ws.merge_cells("B1:F1") |
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ws.merge_cells("B2:F2") |
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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'].border = f_border |
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ws['B3'].font = name_font |
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ws['B3'].alignment = b_c_alignment |
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ws['B3'] = '名称' |
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ws['C3'].border = f_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'] = '空间' |
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ws['D3'].border = f_border |
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ws['D3'].font = name_font |
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ws['D3'].alignment = b_c_alignment |
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ws['D3'] = '成本中心:' |
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ws['E3'].border = f_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'] = '能耗分类' |
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ws['F3'].border = f_border |
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ws['F3'].font = name_font |
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ws['F3'].alignment = b_c_alignment |
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ws['F3'] = ' 描述' |
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current_row_number = 4 |
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for i in range(0, len(report['meters'])): |
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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['meters'][i]['meter_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['meters'][i]['space_name'] |
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ws['D' + str(current_row_number)].font = title_font |
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ws['D' + str(current_row_number)].border = f_border |
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ws['D' + str(current_row_number)].alignment = c_c_alignment |
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ws['D' + str(current_row_number)] = report['meters'][i]['cost_center_name'] |
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ws['E' + str(current_row_number)].font = title_font |
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ws['E' + str(current_row_number)].border = f_border |
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ws['E' + str(current_row_number)].alignment = c_c_alignment |
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ws['E' + str(current_row_number)] = report['meters'][i]['energy_category_name'] |
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ws['F' + str(current_row_number)].font = title_font |
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ws['F' + str(current_row_number)].border = f_border |
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ws['F' + str(current_row_number)].alignment = c_c_alignment |
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ws['F' + str(current_row_number)] = report['meters'][i]['description'] |
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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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