Total Complexity | 52 |
Total Lines | 229 |
Duplicated Lines | 20.96 % |
Changes | 0 |
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like osm_poi_matchmaker.dao.data_handlers often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
1 | # -*- coding: utf-8 -*- |
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2 | |||
3 | try: |
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4 | import logging |
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5 | import sys |
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6 | import hashlib |
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7 | from osm_poi_matchmaker.dao.data_structure import City, POI_common, POI_address, Street_type |
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8 | from osm_poi_matchmaker.libs import address |
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9 | from osm_poi_matchmaker.dao import poi_array_structure |
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10 | except ImportError as err: |
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11 | logging.error('Error %s import module: %s', __name__, err) |
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12 | logging.exception('Exception occurred') |
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13 | |||
14 | sys.exit(128) |
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15 | |||
16 | POI_COLS = poi_array_structure.POI_COLS |
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17 | |||
18 | |||
19 | def get_or_create(session, model, **kwargs): |
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20 | instance = session.query(model).filter_by(**kwargs).first() |
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21 | View Code Duplication | if instance: |
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22 | logging.debug('Already added: %s', instance) |
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23 | return instance |
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24 | else: |
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25 | try: |
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26 | instance = model(**kwargs) |
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27 | session.add(instance) |
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28 | return instance |
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29 | except Exception as e: |
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30 | logging.error('Cannot add to the database. (%s)', e) |
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31 | logging.exception('Exception occurred') |
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32 | raise e |
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33 | |||
34 | |||
35 | def get_or_create_poi(session, model, **kwargs): |
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36 | if kwargs['poi_common_id'] is not None: |
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37 | if kwargs['poi_common_id'] is not None and kwargs['poi_addr_city'] is not None and ( |
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38 | (kwargs['poi_addr_street'] and kwargs['poi_addr_housenumber'] is not None) or ( |
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39 | kwargs['poi_conscriptionnumber'] is not None)): |
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40 | logging.debug('Fully filled basic data record') |
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41 | else: |
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42 | logging.warning('Missing record data: %s', kwargs) |
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43 | instance = session.query(model) \ |
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44 | .filter_by(poi_common_id=kwargs['poi_common_id']) \ |
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45 | .filter_by(poi_addr_city=kwargs['poi_addr_city']) \ |
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46 | .filter_by(poi_addr_street=kwargs['poi_addr_street']) \ |
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47 | .filter_by(poi_addr_housenumber=kwargs['poi_addr_housenumber']) \ |
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48 | .filter_by(poi_conscriptionnumber=kwargs['poi_conscriptionnumber']) \ |
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49 | .filter_by(poi_branch=kwargs['poi_branch']) \ |
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50 | .first() |
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51 | View Code Duplication | if instance: |
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52 | logging.debug('Already added: %s', instance) |
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53 | return instance |
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54 | else: |
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55 | try: |
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56 | instance = model(**kwargs) |
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57 | session.add(instance) |
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58 | return instance |
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59 | except Exception as e: |
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60 | logging.error('Cannot add to the database. (%s)', e) |
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61 | logging.exception('Exception occurred') |
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62 | raise e |
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63 | |||
64 | |||
65 | def get_or_create_cache(session, model, **kwargs): |
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66 | if kwargs.get('osm_id') is not None and kwargs.get('osm_object_type'): |
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67 | instance = session.query(model) \ |
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68 | .filter_by(osm_id=kwargs.get('osm_id')).filter_by(osm_object_type=kwargs.get('poi_addr_city')).first() |
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69 | View Code Duplication | if instance: |
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70 | logging.debug('Already added: %s', instance) |
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71 | return instance |
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72 | else: |
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73 | try: |
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74 | instance = model(**kwargs) |
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75 | session.add(instance) |
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76 | return instance |
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77 | except Exception as e: |
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78 | logging.error('Cannot add to the database. (%s)', e) |
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79 | logging.exception('Exception occurred') |
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80 | raise e |
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81 | |||
82 | def get_or_create_common(session, model, **kwargs): |
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83 | if kwargs['poi_code'] is not None and kwargs['poi_code'] != '': |
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84 | instance = session.query(model).filter_by(poi_code=kwargs['poi_code']).first() |
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85 | View Code Duplication | if instance: |
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86 | logging.debug('Already added: %s', instance) |
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87 | return instance |
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88 | else: |
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89 | try: |
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90 | instance = model(**kwargs) |
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91 | session.add(instance) |
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92 | return instance |
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93 | except Exception as e: |
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94 | logging.error('Cannot add to the database. (%s)', e) |
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95 | logging.exception('Exception occurred') |
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96 | raise e |
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97 | |||
98 | def insert_city_dataframe(session, city_df): |
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99 | city_df.columns = ['city_post_code', 'city_name'] |
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100 | try: |
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101 | for index, city_data in city_df.iterrows(): |
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102 | get_or_create(session, City, city_post_code=city_data['city_post_code'], |
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103 | city_name=address.clean_city(city_data['city_name'])) |
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104 | except Exception as e: |
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105 | |||
106 | logging.error('Rolled back: %s.', e) |
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107 | logging.error(city_data) |
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108 | logging.exception('Exception occurred') |
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109 | |||
110 | session.rollback() |
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111 | else: |
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112 | logging.info('Successfully added %s city items to the dataset.', len(city_df)) |
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113 | session.commit() |
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114 | |||
115 | |||
116 | def insert_street_type_dataframe(session, city_df): |
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117 | city_df.columns = ['street_type'] |
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118 | try: |
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119 | for index, city_data in city_df.iterrows(): |
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120 | get_or_create(session, Street_type, street_type=city_data['street_type']) |
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121 | except Exception as e: |
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122 | logging.error('Rolled back: %s.', e) |
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123 | logging.error(city_data) |
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124 | logging.exception('Exception occurred') |
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125 | |||
126 | session.rollback() |
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127 | else: |
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128 | logging.info('Successfully added %s street type items to the dataset.', len(city_df)) |
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129 | session.commit() |
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130 | |||
131 | |||
132 | def insert_common_dataframe(session, common_df): |
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133 | common_df.columns = ['poi_name', 'poi_tags', 'poi_url_base', 'poi_code'] |
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134 | try: |
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135 | for index, poi_common_data in common_df.iterrows(): |
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136 | get_or_create_common(session, POI_common, **poi_common_data) |
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137 | except Exception as e: |
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138 | logging.error('Rolled back: %s.', e) |
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139 | logging.error(poi_common_data) |
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140 | logging.exception('Exception occurred') |
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141 | |||
142 | session.rollback() |
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143 | else: |
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144 | logging.info('Successfully added %s common items to the dataset.', len(common_df)) |
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145 | session.commit() |
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146 | |||
147 | |||
148 | def search_for_postcode(session, city_name): |
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149 | city_col = session.query(City.city_post_code).filter(City.city_name == city_name).all() |
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150 | if len(city_col) == 1: |
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151 | return city_col |
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152 | else: |
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153 | logging.info('Cannot determine the post code from city name (%s).', city_name) |
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154 | return None |
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155 | |||
156 | |||
157 | def insert_poi_dataframe(session, poi_df): |
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158 | poi_df.columns = POI_COLS |
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159 | poi_df[['poi_postcode']] = poi_df[['poi_postcode']].fillna('0000') |
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160 | poi_df[['poi_postcode']] = poi_df[['poi_postcode']].astype(int) |
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161 | poi_dict = poi_df.to_dict('records') |
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162 | try: |
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163 | for poi_data in poi_dict: |
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164 | city_col = session.query(City.city_id).filter(City.city_name == poi_data['poi_city']).filter( |
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165 | City.city_post_code == poi_data['poi_postcode']).first() |
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166 | common_col = session.query(POI_common.pc_id).filter(POI_common.poi_code == poi_data['poi_code']).first() |
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167 | poi_data['poi_addr_city'] = city_col |
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168 | poi_data['poi_common_id'] = common_col |
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169 | if 'poi_name' in poi_data: del poi_data['poi_name'] |
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170 | if 'poi_code' in poi_data: del poi_data['poi_code'] |
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171 | get_or_create_poi(session, POI_address, **poi_data) |
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172 | except Exception as e: |
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173 | logging.error('Rolled back: %s.', e) |
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174 | logging.error(poi_data) |
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175 | logging.exception('Exception occurred') |
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176 | |||
177 | session.rollback() |
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178 | raise e |
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179 | else: |
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180 | try: |
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181 | session.commit() |
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182 | logging.info('Successfully added %s POI items to the dataset.', len(poi_dict)) |
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183 | except Exception as e: |
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184 | logging.error('Unsuccessfull commit: %s.', e) |
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185 | logging.exception('Exception occurred') |
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186 | |||
187 | |||
188 | def insert_type(session, type_data): |
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189 | try: |
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190 | for i in type_data: |
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191 | get_or_create_common(session, POI_common, **i) |
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192 | except Exception as e: |
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193 | logging.error('Rolled back: %s.', e) |
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194 | logging.error(i) |
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195 | logging.exception('Exception occurred') |
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196 | |||
197 | session.rollback() |
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198 | else: |
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199 | logging.info('Successfully added %s type items to the dataset.', len(type_data)) |
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200 | session.commit() |
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201 | |||
202 | |||
203 | def insert(session, **kwargs): |
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204 | try: |
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205 | city_col = session.query(City.city_id).filter(City.city_name == kwargs['poi_city']).filter( |
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206 | City.city_post_code == kwargs['poi_postcode']).first() |
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207 | common_col = session.query(POI_common.pc_id).filter(POI_common.poi_code == kwargs['poi_code']).first() |
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208 | kwargs['poi_addr_city'] = city_col |
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209 | kwargs['poi_common_id'] = common_col |
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210 | kwargs['poi_hash'] = hashlib.sha512( |
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211 | '{}{}{}{}{}{}'.format(kwargs['poi_code'], kwargs['poi_postcode'], kwargs['poi_city'], |
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212 | kwargs['poi_addr_street'], kwargs['poi_addr_housenumber'], |
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213 | kwargs['poi_conscriptionnumber']).lower().replace(' ', '').encode( |
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214 | 'utf-8')).hexdigest() |
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215 | if 'poi_name' in kwargs: del kwargs['poi_name'] |
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216 | if 'poi_code' in kwargs: del kwargs['poi_code'] |
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217 | get_or_create_poi(session, POI_address, **kwargs) |
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218 | except Exception as e: |
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219 | logging.error('Rolled back: %s.', e) |
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220 | logging.error(kwargs) |
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221 | logging.exception('Exception occurred') |
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222 | |||
223 | session.rollback() |
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224 | else: |
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225 | logging.debug('Successfully added the item to the dataset.') |
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226 | session.commit() |
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227 | finally: |
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228 | session.close() |
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229 |