1 | import base64 |
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2 | from core.utilities import get_translation |
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3 | import os |
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4 | import uuid |
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5 | from openpyxl import Workbook |
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6 | from openpyxl.drawing.image import Image |
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7 | from openpyxl.styles import PatternFill, Border, Side, Alignment, Font |
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8 | from core.utilities import round2 |
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9 | |||
10 | |||
11 | ######################################################################################################################## |
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12 | # PROCEDURES |
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13 | # Step 1: Validate the report data |
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14 | # Step 2: Generate excel file from the report data |
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15 | # Step 3: Encode the excel file to Base64 |
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16 | ######################################################################################################################## |
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17 | def export(result, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
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18 | #################################################################################################################### |
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19 | # Step 1: Validate the report data |
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20 | #################################################################################################################### |
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21 | if result is None: |
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22 | return None |
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23 | |||
24 | #################################################################################################################### |
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25 | # Step 2: Generate excel file from the report data |
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26 | #################################################################################################################### |
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27 | filename = generate_excel(result, |
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28 | space_name, |
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29 | reporting_start_datetime_local, |
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30 | reporting_end_datetime_local, |
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31 | language) |
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32 | #################################################################################################################### |
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33 | # Step 3: Encode the excel file to Base64 |
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34 | #################################################################################################################### |
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35 | binary_file_data = b'' |
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36 | try: |
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37 | with open(filename, 'rb') as binary_file: |
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38 | binary_file_data = binary_file.read() |
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39 | except IOError as ex: |
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40 | print(str(ex)) |
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41 | |||
42 | # Base64 encode the bytes |
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43 | base64_encoded_data = base64.b64encode(binary_file_data) |
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44 | # get the Base64 encoded data using human-readable characters. |
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45 | base64_message = base64_encoded_data.decode('utf-8') |
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46 | # delete the file from server |
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47 | try: |
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48 | os.remove(filename) |
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49 | except NotImplementedError as ex: |
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50 | print(str(ex)) |
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51 | return base64_message |
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52 | |||
53 | |||
54 | View Code Duplication | def generate_excel(report, space_name, reporting_start_datetime_local, reporting_end_datetime_local, language): |
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55 | |||
56 | trans = get_translation(language) |
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57 | trans.install() |
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58 | _ = trans.gettext |
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59 | |||
60 | wb = Workbook() |
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61 | ws = wb.active |
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62 | ws.title = "CombinedEquipmentBatch" |
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63 | |||
64 | # Row height |
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65 | ws.row_dimensions[1].height = 102 |
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66 | for i in range(2, 5 + 1): |
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67 | ws.row_dimensions[i].height = 42 |
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68 | |||
69 | for i in range(6, len(report['combined_equipments']) + 15): |
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70 | ws.row_dimensions[i].height = 60 |
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71 | |||
72 | # Col width |
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73 | ws.column_dimensions['A'].width = 1.5 |
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74 | |||
75 | ws.column_dimensions['B'].width = 25.0 |
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76 | |||
77 | for i in range(ord('C'), ord('L')): |
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78 | ws.column_dimensions[chr(i)].width = 15.0 |
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79 | |||
80 | # Font |
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81 | name_font = Font(name='Arial', size=15, bold=True) |
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82 | title_font = Font(name='Arial', size=15, bold=True) |
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83 | data_font = Font(name='Franklin Gothic Book', size=11) |
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84 | |||
85 | table_fill = PatternFill(fill_type='solid', fgColor='90ee90') |
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86 | f_border = Border(left=Side(border_style='medium'), |
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87 | right=Side(border_style='medium'), |
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88 | bottom=Side(border_style='medium'), |
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89 | top=Side(border_style='medium') |
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90 | ) |
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91 | b_border = Border( |
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92 | bottom=Side(border_style='medium'), |
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93 | ) |
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94 | |||
95 | b_c_alignment = Alignment(vertical='bottom', |
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96 | horizontal='center', |
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97 | text_rotation=0, |
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98 | wrap_text=True, |
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99 | shrink_to_fit=False, |
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100 | indent=0) |
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101 | c_c_alignment = Alignment(vertical='center', |
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102 | horizontal='center', |
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103 | text_rotation=0, |
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104 | wrap_text=True, |
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105 | shrink_to_fit=False, |
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106 | indent=0) |
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107 | b_r_alignment = Alignment(vertical='bottom', |
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108 | horizontal='right', |
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109 | text_rotation=0, |
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110 | wrap_text=True, |
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111 | shrink_to_fit=False, |
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112 | indent=0) |
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113 | |||
114 | # Img |
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115 | img = Image("excelexporters/myems.png") |
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116 | ws.add_image(img, 'A1') |
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117 | |||
118 | # Title |
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119 | ws['B3'].alignment = b_r_alignment |
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120 | ws['B3'] = _('Space') + ':' |
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121 | ws['C3'].border = b_border |
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122 | ws['C3'].alignment = b_c_alignment |
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123 | ws['C3'] = space_name |
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124 | |||
125 | ws['B4'].alignment = b_r_alignment |
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126 | ws['B4'] = _('Reporting Start Datetime') + ':' |
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127 | ws['C4'].border = b_border |
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128 | ws['C4'].alignment = b_c_alignment |
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129 | ws['C4'] = reporting_start_datetime_local |
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130 | |||
131 | ws['B5'].alignment = b_r_alignment |
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132 | ws['B5'] = _('Reporting End Datetime') + ':' |
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133 | ws['C5'].border = b_border |
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134 | ws['C5'].alignment = b_c_alignment |
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135 | ws['C5'] = reporting_end_datetime_local |
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136 | |||
137 | # Title |
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138 | ws['B6'].border = f_border |
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139 | ws['B6'].font = name_font |
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140 | ws['B6'].alignment = c_c_alignment |
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141 | ws['B6'].fill = table_fill |
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142 | ws['B6'] = _('Name') |
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143 | |||
144 | ws['C6'].border = f_border |
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145 | ws['C6'].alignment = c_c_alignment |
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146 | ws['C6'].font = name_font |
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147 | ws['C6'].fill = table_fill |
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148 | ws['C6'] = _('Space') |
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149 | |||
150 | ca_len = len(report['energycategories']) |
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151 | |||
152 | for i in range(0, ca_len): |
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153 | col = chr(ord('D') + i) |
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154 | ws[col + '6'].fill = table_fill |
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155 | ws[col + '6'].font = name_font |
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156 | ws[col + '6'].alignment = c_c_alignment |
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157 | ws[col + '6'] = report['energycategories'][i]['name'] + \ |
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158 | " (" + report['energycategories'][i]['unit_of_measure'] + ")" |
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159 | ws[col + '6'].border = f_border |
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160 | |||
161 | current_row_number = 7 |
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162 | for i in range(0, len(report['combined_equipments'])): |
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163 | |||
164 | ws['B' + str(current_row_number)].font = title_font |
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165 | ws['B' + str(current_row_number)].border = f_border |
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166 | ws['B' + str(current_row_number)].alignment = c_c_alignment |
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167 | ws['B' + str(current_row_number)] = report['combined_equipments'][i]['combined_equipment_name'] |
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168 | |||
169 | ws['C' + str(current_row_number)].font = title_font |
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170 | ws['C' + str(current_row_number)].border = f_border |
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171 | ws['C' + str(current_row_number)].alignment = c_c_alignment |
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172 | ws['C' + str(current_row_number)] = report['combined_equipments'][i]['space_name'] |
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173 | |||
174 | ca_len = len(report['combined_equipments'][i]['values']) |
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175 | for j in range(0, ca_len): |
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176 | col = chr(ord('D') + j) |
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177 | ws[col + str(current_row_number)].font = data_font |
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178 | ws[col + str(current_row_number)].border = f_border |
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179 | ws[col + str(current_row_number)].alignment = c_c_alignment |
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180 | ws[col + str(current_row_number)] = round2(report['combined_equipments'][i]['values'][j], 2) |
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181 | |||
182 | current_row_number += 1 |
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183 | |||
184 | filename = str(uuid.uuid4()) + '.xlsx' |
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185 | wb.save(filename) |
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186 | |||
187 | return filename |
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188 |