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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 re |
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import uuid |
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import openpyxl.utils.cell as format_cell |
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from openpyxl import Workbook |
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from openpyxl.chart import LineChart, Reference |
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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 core.utilities import round2 |
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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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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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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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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, |
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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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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 = "MeterTrend" |
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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, 8): |
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ws.row_dimensions[i].height = 42 |
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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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90
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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='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'] = _('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'] = 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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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: Trend |
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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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report['reporting_period'] = report['reporting_period'] |
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if "names" not in report['reporting_period'].keys() or \ |
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report['reporting_period']['names'] is None or \ |
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len(report['reporting_period']['names']) == 0: |
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has_data_flag = False |
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if "timestamps" not in report['reporting_period'].keys() or \ |
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report['reporting_period']['timestamps'] is None or \ |
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len(report['reporting_period']['timestamps']) == 0: |
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has_data_flag = False |
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if "values" not in report['reporting_period'].keys() or \ |
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report['reporting_period']['values'] is None or \ |
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len(report['reporting_period']['values']) == 0: |
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has_data_flag = False |
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ca_len = len(report['reporting_period']['names']) |
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times = report['reporting_period']['timestamps'] |
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category = report['meter']['energy_category_name'] |
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parameters_names_len = len(report['parameters']['names']) |
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parameters_data = report['parameters'] |
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parameters_parameters_datas_len = 0 |
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for i in range(0, parameters_names_len): |
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if len(parameters_data['timestamps'][i]) == 0: |
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continue |
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parameters_parameters_datas_len += 1 |
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start_detail_data_row_num = 9 + (parameters_parameters_datas_len + ca_len) * 6 |
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if has_data_flag: |
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time = times[0] |
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for time in times: |
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if len(time) > 0: |
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break |
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has_data = False |
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current_sheet_parameters_row_number = 7 |
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for i in range(8, len(time) + 6 + ca_len * 6 + len(category) * 6 + 2): |
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ws.row_dimensions[i].height = 42 |
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if len(time) > 0: |
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has_data = True |
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current_sheet_parameters_row_number = 7 + ca_len * 6 |
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if has_data: |
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max_row = start_detail_data_row_num + len(time) |
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ws['B6'].font = title_font |
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ws['B6'] = name + ' ' + _('Trend') |
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ws.row_dimensions[start_detail_data_row_num - 1].height = 60 |
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ws['B' + str(start_detail_data_row_num - 1)].fill = table_fill |
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ws['B' + str(start_detail_data_row_num - 1)].font = title_font |
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ws['B' + str(start_detail_data_row_num - 1)].border = f_border |
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ws['B' + str(start_detail_data_row_num - 1)].alignment = c_c_alignment |
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ws['B' + str(start_detail_data_row_num - 1)] = _('Datetime') |
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for i in range(0, len(time)): |
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col = 'B' |
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row = str(start_detail_data_row_num + 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 = format_cell.get_column_letter(3 + i) |
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ws[col + str(start_detail_data_row_num - 1)].fill = table_fill |
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ws[col + str(start_detail_data_row_num - 1)].font = title_font |
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ws[col + str(start_detail_data_row_num - 1)].alignment = c_c_alignment |
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ws[col + str(start_detail_data_row_num - 1)] = report['reporting_period']['names'][i] |
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ws[col + str(start_detail_data_row_num - 1)].border = f_border |
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for j in range(0, len(time)): |
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row = str(start_detail_data_row_num + 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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try: |
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ws[col + row] = round2(report['reporting_period']['values'][i][j], 3) if \ |
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len(report['reporting_period']['values'][i]) > 0 and \ |
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len(report['reporting_period']['values'][i]) > j and \ |
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report['reporting_period']['values'][i][j] is not None else '' |
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except Exception as e: |
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print('error 1 in excelexporters\\metertrend: ' + str(e)) |
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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 = report['reporting_period']['names'][i] |
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labels = Reference(ws, min_col=2, min_row=start_detail_data_row_num, max_row=max_row-1) |
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line_data = Reference(ws, min_col=3 + i, min_row=start_detail_data_row_num+1, 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.smooth = True |
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line.x_axis.crosses = 'min' |
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line.height = 8.25 |
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line.width = 36 |
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chart_col = chr(ord('B')) |
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chart_cell = chart_col + str(7 + 6*i) |
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ws.add_chart(line, chart_cell) |
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#################################################################################################################### |
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# 12 is the starting line number of the last line chart in the report period |
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if 'parameters' not in report.keys() or \ |
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report['parameters'] is None or \ |
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'names' not in report['parameters'].keys() or \ |
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report['parameters']['names'] is None or \ |
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len(report['parameters']['names']) == 0 or \ |
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'timestamps' not in report['parameters'].keys() or \ |
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report['parameters']['timestamps'] is None or \ |
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len(report['parameters']['timestamps']) == 0 or \ |
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273
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'values' not in report['parameters'].keys() or \ |
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274
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report['parameters']['values'] is None or \ |
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275
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len(report['parameters']['values']) == 0 or \ |
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276
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timestamps_data_all_equal_0(report['parameters']['timestamps']): |
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pass |
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else: |
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280
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################################################################################################################ |
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# new worksheet |
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282
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################################################################################################################ |
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283
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284
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parameters_data = report['parameters'] |
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285
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286
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parameters_names_len = len(parameters_data['names']) |
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287
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288
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file_name = (re.sub(r'[^A-Z]', '', ws.title))+'_' |
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289
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parameters_ws = wb.create_sheet(file_name + _('Parameters')) |
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290
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291
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parameters_timestamps_data_max_len = \ |
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292
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get_parameters_timestamps_lists_max_len(list(parameters_data['timestamps'])) |
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293
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294
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# Row height |
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295
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parameters_ws.row_dimensions[1].height = 102 |
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296
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for i in range(2, 7 + 1): |
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297
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parameters_ws.row_dimensions[i].height = 42 |
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298
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299
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for i in range(8, parameters_timestamps_data_max_len + 10): |
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300
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parameters_ws.row_dimensions[i].height = 60 |
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301
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302
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# Col width |
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303
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|
|
parameters_ws.column_dimensions['A'].width = 1.5 |
|
304
|
|
|
|
|
305
|
|
|
parameters_ws.column_dimensions['B'].width = 25.0 |
|
306
|
|
|
|
|
307
|
|
|
for i in range(3, 12 + parameters_names_len * 3): |
|
308
|
|
|
parameters_ws.column_dimensions[format_cell.get_column_letter(i)].width = 15.0 |
|
309
|
|
|
|
|
310
|
|
|
# Img |
|
311
|
|
|
img = Image("excelexporters/myems.png") |
|
312
|
|
|
parameters_ws.add_image(img, 'A1') |
|
313
|
|
|
|
|
314
|
|
|
# Title |
|
315
|
|
|
parameters_ws['B3'].alignment = b_r_alignment |
|
316
|
|
|
parameters_ws['B3'] = _('Name') + ':' |
|
317
|
|
|
parameters_ws['C3'].border = b_border |
|
318
|
|
|
parameters_ws['C3'].alignment = b_c_alignment |
|
319
|
|
|
parameters_ws['C3'] = name |
|
320
|
|
|
|
|
321
|
|
|
parameters_ws['B4'].alignment = b_r_alignment |
|
322
|
|
|
parameters_ws['B4'] = _('Reporting Start Datetime') + ':' |
|
323
|
|
|
parameters_ws['C4'].border = b_border |
|
324
|
|
|
parameters_ws['C4'].alignment = b_c_alignment |
|
325
|
|
|
parameters_ws['C4'] = reporting_start_datetime_local |
|
326
|
|
|
|
|
327
|
|
|
parameters_ws['B5'].alignment = b_r_alignment |
|
328
|
|
|
parameters_ws['B5'] = _('Reporting End Datetime') + ':' |
|
329
|
|
|
parameters_ws['C5'].border = b_border |
|
330
|
|
|
parameters_ws['C5'].alignment = b_c_alignment |
|
331
|
|
|
parameters_ws['C5'] = reporting_end_datetime_local |
|
332
|
|
|
|
|
333
|
|
|
parameters_ws_current_row_number = 6 |
|
334
|
|
|
|
|
335
|
|
|
parameters_ws['B' + str(parameters_ws_current_row_number)].font = title_font |
|
336
|
|
|
parameters_ws['B' + str(parameters_ws_current_row_number)] = name + ' ' + _('Parameters') |
|
337
|
|
|
|
|
338
|
|
|
parameters_ws_current_row_number += 1 |
|
339
|
|
|
|
|
340
|
|
|
parameters_table_start_row_number = parameters_ws_current_row_number |
|
341
|
|
|
|
|
342
|
|
|
parameters_ws.row_dimensions[parameters_ws_current_row_number].height = 80 |
|
343
|
|
|
|
|
344
|
|
|
parameters_ws_current_row_number += 1 |
|
345
|
|
|
|
|
346
|
|
|
table_current_col_number = 2 |
|
347
|
|
|
|
|
348
|
|
|
for i in range(0, parameters_names_len): |
|
349
|
|
|
|
|
350
|
|
|
if len(parameters_data['timestamps'][i]) == 0: |
|
351
|
|
|
continue |
|
352
|
|
|
|
|
353
|
|
|
col = format_cell.get_column_letter(table_current_col_number) |
|
354
|
|
|
|
|
355
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].fill = table_fill |
|
356
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].border = f_border |
|
357
|
|
|
|
|
358
|
|
|
col = format_cell.get_column_letter(table_current_col_number + 1) |
|
359
|
|
|
|
|
360
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].fill = table_fill |
|
361
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].border = f_border |
|
362
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].font = name_font |
|
363
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)].alignment = c_c_alignment |
|
364
|
|
|
parameters_ws[col + str(parameters_ws_current_row_number - 1)] = parameters_data['names'][i] |
|
365
|
|
|
|
|
366
|
|
|
table_current_row_number = parameters_ws_current_row_number |
|
367
|
|
|
|
|
368
|
|
|
for j, value in enumerate(list(parameters_data['timestamps'][i])): |
|
369
|
|
|
col = format_cell.get_column_letter(table_current_col_number) |
|
370
|
|
|
|
|
371
|
|
|
parameters_ws[col + str(table_current_row_number)].border = f_border |
|
372
|
|
|
parameters_ws[col + str(table_current_row_number)].font = title_font |
|
373
|
|
|
parameters_ws[col + str(table_current_row_number)].alignment = c_c_alignment |
|
374
|
|
|
parameters_ws[col + str(table_current_row_number)] = value |
|
375
|
|
|
|
|
376
|
|
|
col = format_cell.get_column_letter(table_current_col_number + 1) |
|
377
|
|
|
|
|
378
|
|
|
parameters_ws[col + str(table_current_row_number)].border = f_border |
|
379
|
|
|
parameters_ws[col + str(table_current_row_number)].font = title_font |
|
380
|
|
|
parameters_ws[col + str(table_current_row_number)].alignment = c_c_alignment |
|
381
|
|
|
try: |
|
382
|
|
|
parameters_ws[col + str(table_current_row_number)] = round2(parameters_data['values'][i][j], 2) |
|
383
|
|
|
except Exception as e: |
|
384
|
|
|
print('error 2 in excelexporters\\metertrend: ' + str(e)) |
|
385
|
|
|
|
|
386
|
|
|
table_current_row_number += 1 |
|
387
|
|
|
|
|
388
|
|
|
table_current_col_number = table_current_col_number + 3 |
|
389
|
|
|
|
|
390
|
|
|
################################################################################################################ |
|
391
|
|
|
# parameters chart and parameters table |
|
392
|
|
|
################################################################################################################ |
|
393
|
|
|
|
|
394
|
|
|
ws['B' + str(current_sheet_parameters_row_number)].font = title_font |
|
|
|
|
|
|
395
|
|
|
ws['B' + str(current_sheet_parameters_row_number)] = name + ' ' + _('Parameters') |
|
396
|
|
|
|
|
397
|
|
|
current_sheet_parameters_row_number += 1 |
|
398
|
|
|
|
|
399
|
|
|
chart_start_row_number = current_sheet_parameters_row_number |
|
400
|
|
|
|
|
401
|
|
|
col_index = 0 |
|
402
|
|
|
|
|
403
|
|
|
for i in range(0, parameters_names_len): |
|
404
|
|
|
|
|
405
|
|
|
if len(parameters_data['timestamps'][i]) == 0: |
|
406
|
|
|
continue |
|
407
|
|
|
|
|
408
|
|
|
line = LineChart() |
|
409
|
|
|
data_col = 3 + col_index * 3 |
|
410
|
|
|
labels_col = 2 + col_index * 3 |
|
411
|
|
|
col_index += 1 |
|
412
|
|
|
line.title = _('Parameters') + ' - ' + \ |
|
413
|
|
|
parameters_ws.cell(row=parameters_table_start_row_number, column=data_col).value |
|
414
|
|
|
labels = Reference(parameters_ws, min_col=labels_col, min_row=parameters_table_start_row_number + 1, |
|
415
|
|
|
max_row=(len(parameters_data['timestamps'][i]) + parameters_table_start_row_number)) |
|
416
|
|
|
line_data = Reference(parameters_ws, min_col=data_col, min_row=parameters_table_start_row_number, |
|
417
|
|
|
max_row=(len(parameters_data['timestamps'][i]) + parameters_table_start_row_number)) |
|
418
|
|
|
line.add_data(line_data, titles_from_data=True) |
|
419
|
|
|
line.set_categories(labels) |
|
420
|
|
|
line_data = line.series[0] |
|
421
|
|
|
line_data.marker.symbol = "auto" |
|
422
|
|
|
line_data.smooth = True |
|
423
|
|
|
line.x_axis.crosses = 'min' |
|
424
|
|
|
line.height = 8.25 |
|
425
|
|
|
line.width = 24 |
|
426
|
|
|
chart_col = 'B' |
|
427
|
|
|
chart_cell = chart_col + str(chart_start_row_number) |
|
428
|
|
|
chart_start_row_number += 6 |
|
429
|
|
|
ws.add_chart(line, chart_cell) |
|
430
|
|
|
|
|
431
|
|
|
current_sheet_parameters_row_number = chart_start_row_number |
|
432
|
|
|
|
|
433
|
|
|
current_sheet_parameters_row_number += 1 |
|
434
|
|
|
|
|
435
|
|
|
filename = str(uuid.uuid4()) + '.xlsx' |
|
436
|
|
|
wb.save(filename) |
|
437
|
|
|
|
|
438
|
|
|
return filename |
|
439
|
|
|
|
|
440
|
|
|
|
|
441
|
|
|
def timestamps_data_all_equal_0(lists): |
|
442
|
|
|
for i, value in enumerate(list(lists)): |
|
443
|
|
|
if len(value) > 0: |
|
444
|
|
|
return False |
|
445
|
|
|
|
|
446
|
|
|
return True |
|
447
|
|
|
|
|
448
|
|
|
|
|
449
|
|
|
def get_parameters_timestamps_lists_max_len(parameters_timestamps_lists): |
|
450
|
|
|
max_len = 0 |
|
451
|
|
|
for i, value in enumerate(list(parameters_timestamps_lists)): |
|
452
|
|
|
if len(value) > max_len: |
|
453
|
|
|
max_len = len(value) |
|
454
|
|
|
|
|
455
|
|
|
return max_len |
|
456
|
|
|
|
|
457
|
|
|
|
|
458
|
|
|
def timestamps_data_not_equal_0(lists): |
|
459
|
|
|
number = 0 |
|
460
|
|
|
for i, value in enumerate(list(lists)): |
|
461
|
|
|
if len(value) > 0: |
|
462
|
|
|
number += 1 |
|
463
|
|
|
return number |
|
464
|
|
|
|
MyEMS /
myems
Caozhenhui
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