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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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PieChart, |
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LineChart, |
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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, 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 excel file |
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# Step 3: Encode the excel file bytes to Base64 |
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#################################################################################################################### |
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View Code Duplication |
def export(result, |
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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 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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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, |
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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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wb = Workbook() |
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ws = wb.active |
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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(2, 6 + 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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ws.column_dimensions['B'].width = 25.0 |
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for i in range(ord('C'), ord('V')): |
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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=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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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=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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img.width = img.width * 0.85 |
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img.height = img.height * 0.85 |
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# img = Image("myems.png") |
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ws.add_image(img, 'B1') |
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# Title |
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ws.row_dimensions[3].height = 60 |
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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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"names" not in report['reporting_period'].keys() or len(report['reporting_period']['names']) == 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: 趋势 |
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# 6: title |
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# 7: table title |
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# 8~ table_data |
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################################################ |
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has_data_flag = True |
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reporting_period_data = report['reporting_period'] |
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if "names" not in reporting_period_data.keys() or \ |
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reporting_period_data['names'] is None or \ |
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len(reporting_period_data['names']) == 0: |
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has_data_flag = False |
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if "timestamps" not in reporting_period_data.keys() or \ |
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reporting_period_data['timestamps'] is None or \ |
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len(reporting_period_data['timestamps']) == 0: |
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has_data_flag = False |
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if "values" not in reporting_period_data.keys() or \ |
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reporting_period_data['values'] is None or \ |
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len(reporting_period_data['values']) == 0: |
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has_data_flag = False |
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ca = reporting_period_data['names'] |
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ca_len = len(ca) |
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temp_max_row = 0 |
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times = reporting_period_data['timestamps'] |
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if has_data_flag: |
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ws['B6'].font = title_font |
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ws['B6'] = name + ' 趋势' |
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ws.row_dimensions[7].height = 60 |
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ws['B7'].fill = table_fill |
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ws['B7'].font = title_font |
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ws['B7'].border = f_border |
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ws['B7'].alignment = c_c_alignment |
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ws['B7'] = '日期时间' |
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time = times[0] |
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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 = 8 + len(time) |
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# print("max_row", max_row) |
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temp_max_row = max_row |
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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(8 + i) |
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# col = chr(ord('B') + 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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for i in range(0, ca_len): |
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# 38 title |
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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 = title_font |
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ws[col + '7'].alignment = c_c_alignment |
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ws[col + '7'] = reporting_period_data['names'][i] |
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ws[col + '7'].border = f_border |
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# 39 data |
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time = times[i] |
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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(8 + j) |
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# col = chr(ord('B') + 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] = round(reporting_period_data['values'][i][j], 3) |
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ws[col + row].border = f_border |
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# line |
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# 39~: line |
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line = LineChart() |
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line.title = '趋势值 - ' + reporting_period_data['names'][i] |
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labels = Reference(ws, min_col=2, min_row=8, max_row=max_row-1) |
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line_data = Reference(ws, min_col=3 + i, min_row=7, max_row=max_row-1) |
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line.add_data(line_data, titles_from_data=True) |
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line.set_categories(labels) |
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# line_data = line.series[0] |
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# line_data.marker.symbol = "circle" |
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line_data.smooth = True |
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line.x_axis.crosses = 'min' |
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line.height = 8.25 # cm 1.05*5 1.05cm = 30 pt |
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line.width = 36 |
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# pie.title = "Pies sold by category" |
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line.dLbls = DataLabelList() |
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# line.dLbls.showCatName = True # label show |
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line.dLbls.dLblPos = 't' |
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line.dLbls.showVal = False # val show |
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line.dLbls.showPercent = False # percent show |
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# s1 = CharacterProperties(sz=1800) # font size *100 |
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chart_col = chr(ord('B')) |
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chart_cell = chart_col + str(max_row + 2 + 6*i) |
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print("chart_cell", chart_cell) |
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ws.add_chart(line, chart_cell) |
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else: |
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pass |
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for i in range(8, temp_max_row + 1 + 1 + + ca_len * 6): |
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ws.row_dimensions[i].height = 42 |
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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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