|
| 1 | +Using the API |
| 2 | +============= |
| 3 | + |
| 4 | +Connection / Authorization |
| 5 | +-------------------------- |
| 6 | + |
| 7 | +Implicitly use the default client: |
| 8 | + |
| 9 | +.. doctest:: |
| 10 | + |
| 11 | + >>> from gcloud import search |
| 12 | + >>> # The search module has the same methods as a client, using the default. |
| 13 | + >>> search.list_indexes() # API request |
| 14 | + [] |
| 15 | + |
| 16 | +Configure the default client: |
| 17 | + |
| 18 | +.. doctest:: |
| 19 | + |
| 20 | + >>> from gcloud import search |
| 21 | + >>> search.set_project_id('project-id') |
| 22 | + >>> search.set_credentials(credentials) |
| 23 | + >>> search.list_indexes() # API request |
| 24 | + [] |
| 25 | + |
| 26 | +Explicitly use the default client: |
| 27 | + |
| 28 | +.. doctest:: |
| 29 | + |
| 30 | + >>> from gcloud.search import default_client as client |
| 31 | + >>> # The default_client is equivalent to search.Client() |
| 32 | + >>> client.list_indexes() # API request |
| 33 | + [] |
| 34 | + |
| 35 | +Explicitly configure a client: |
| 36 | + |
| 37 | +.. doctest:: |
| 38 | + |
| 39 | + >>> from gcloud import search |
| 40 | + >>> client = search.Client(project_id='project-id', credentials=credentials) |
| 41 | + >>> client.list_indexes() # API request |
| 42 | + [] |
| 43 | + |
| 44 | +Manage indexes for a project |
| 45 | +---------------------------- |
| 46 | + |
| 47 | +Create a new index: |
| 48 | + |
| 49 | +.. doctest:: |
| 50 | + |
| 51 | + >>> from gcloud import search |
| 52 | + >>> client = search.Client() |
| 53 | + >>> index = client.create_index('index_id') # API request |
| 54 | + >>> index.id |
| 55 | + 'index_id' |
| 56 | + |
| 57 | +Create a new index with a name: |
| 58 | + |
| 59 | +.. doctest:: |
| 60 | + |
| 61 | + >>> from gcloud import search |
| 62 | + >>> client = search.Client() |
| 63 | + >>> index = client.create_index('index_id', name='Name') # API request |
| 64 | + >>> index.name |
| 65 | + 'Name' |
| 66 | + |
| 67 | +Get or create an index: |
| 68 | + |
| 69 | +.. doctest:: |
| 70 | + |
| 71 | + >>> from gcloud import search |
| 72 | + >>> client = search.Client() |
| 73 | + >>> index = client.get_or_create_index('index_id') # API request |
| 74 | + >>> index.id |
| 75 | + 'index_id' |
| 76 | + |
| 77 | +List the indexes: |
| 78 | + |
| 79 | +.. doctest:: |
| 80 | + |
| 81 | + >>> from gcloud import search |
| 82 | + >>> client = search.Client() |
| 83 | + >>> [index.id for index in client.list_indexes()] # API request |
| 84 | + ['index_id'] |
| 85 | + |
| 86 | +Retrieve an index: |
| 87 | + |
| 88 | +.. doctest:: |
| 89 | + |
| 90 | + >>> from gcloud import search |
| 91 | + >>> client = search.Client() |
| 92 | + >>> index = client.get_index('missing_index_id') # API request |
| 93 | + >>> index is None |
| 94 | + True |
| 95 | + >>> index = client.get_index('index_id') # API request |
| 96 | + >>> index.id |
| 97 | + 'index_id' |
| 98 | + |
| 99 | +Get an index without making an API request |
| 100 | + |
| 101 | +.. doctest:: |
| 102 | + |
| 103 | + >>> from gcloud import search |
| 104 | + >>> client = search.Client() |
| 105 | + >>> index = client.get_index('index_id', check=False) |
| 106 | + >>> index.id |
| 107 | + 'index_id' |
| 108 | + |
| 109 | +Update an index: |
| 110 | + |
| 111 | +.. doctest:: |
| 112 | + |
| 113 | + >>> from gcloud import search |
| 114 | + >>> client = search.Client() |
| 115 | + >>> index = client.get_index('index_id') # API request |
| 116 | + >>> index.name = 'Name' |
| 117 | + >>> client.update_index(index) |
| 118 | + |
| 119 | +Delete an index by ID: |
| 120 | + |
| 121 | +.. doctest:: |
| 122 | + |
| 123 | + >>> from gcloud import search |
| 124 | + >>> client = search.Client() |
| 125 | + >>> client.delete_index('index_id') # API request |
| 126 | + |
| 127 | +Delete an index: |
| 128 | + |
| 129 | +.. doctest:: |
| 130 | + |
| 131 | + >>> from gcloud import search |
| 132 | + >>> client = search.Client() |
| 133 | + >>> index = client.get_index('index_id') # API request |
| 134 | + >>> index.id |
| 135 | + 'index_id' |
| 136 | + >>> client.delete_index(index) # API request |
| 137 | + |
| 138 | +Manage documents and fields |
| 139 | +--------------------------- |
| 140 | + |
| 141 | +Create a document |
| 142 | + |
| 143 | +.. doctest:: |
| 144 | + |
| 145 | + >>> from gcloud import search |
| 146 | + >>> document = search.Document('document_id', rank=0) |
| 147 | + >>> document.id |
| 148 | + 'document_id' |
| 149 | + |
| 150 | +Add a field to a document |
| 151 | + |
| 152 | +.. doctest:: |
| 153 | + |
| 154 | + >>> from gcloud import search |
| 155 | + >>> document = search.Document('document_id') |
| 156 | + >>> document.add_field(search.Field('fieldname')) |
| 157 | + |
| 158 | +Add values to a field |
| 159 | + |
| 160 | +.. doctest:: |
| 161 | + |
| 162 | + >>> from datetime import datetime |
| 163 | + >>> from gcloud import search |
| 164 | + >>> field = search.Field('fieldname') |
| 165 | + >>> field.add_value('string') |
| 166 | + >>> # Tokenization field ignored for non-string values. |
| 167 | + >>> field.add_value('<h1>string</h1>', tokenization='html') |
| 168 | + >>> field.add_value('string', tokenization='atom') |
| 169 | + >>> field.add_value('string', tokenization='text') |
| 170 | + >>> field.add_value(1234) |
| 171 | + >>> field.add_value(datetime.now()) |
| 172 | + >>> len(field.values) |
| 173 | + 9 |
| 174 | + |
| 175 | +Add values to a field at initialization time |
| 176 | + |
| 177 | +.. doctest:: |
| 178 | + |
| 179 | + >>> from gcloud import search |
| 180 | + >>> field = search.Field('fieldname', values=[ |
| 181 | + 'string', |
| 182 | + search.Value('<h1>string2</h1>', tokenization='html') |
| 183 | + search.Value('string', tokenization='atom')]) |
| 184 | + |
| 185 | +Add a single document to an index: |
| 186 | + |
| 187 | +.. doctest:: |
| 188 | + |
| 189 | + >>> from gcloud import search |
| 190 | + >>> client = search.Client() |
| 191 | + >>> index = client.get_index('index_id') # API request |
| 192 | + >>> document = search.Document('document_id', rank=0) |
| 193 | + >>> index.add_document(document) # API request |
| 194 | + |
| 195 | +Add multiple documents to an index: |
| 196 | + |
| 197 | +.. doctest:: |
| 198 | + |
| 199 | + >>> from gcloud import search |
| 200 | + >>> client = search.Client() |
| 201 | + >>> index = client.get_index('index_id') # API request |
| 202 | + >>> documents = [search.Document('document_id')] |
| 203 | + >>> index.add_documents(documents) # API request |
| 204 | + |
| 205 | +Get a single document by ID: |
| 206 | + |
| 207 | +.. doctest:: |
| 208 | + |
| 209 | + >>> from gcloud import search |
| 210 | + >>> client = search.Client() |
| 211 | + >>> index = client.get_index('index_id') # API request |
| 212 | + >>> document = index.get_document('missing_document_id') # API request |
| 213 | + >>> document is None |
| 214 | + True |
| 215 | + >>> document = index.get_document('document_id') # API request |
| 216 | + >>> document.fields |
| 217 | + [] |
| 218 | + |
| 219 | +Delete a document by ID: |
| 220 | + |
| 221 | +.. doctest:: |
| 222 | + |
| 223 | + >>> from gcloud import search |
| 224 | + >>> client = search.Client() |
| 225 | + >>> index = client.get_index('index_id') # API request |
| 226 | + >>> index.delete_document('document_id') # API request |
| 227 | + >>> index.delete_document('missing_document_id') # API request |
| 228 | + |
| 229 | +Searching |
| 230 | +--------- |
| 231 | + |
| 232 | +Create a query |
| 233 | + |
| 234 | +.. doctest:: |
| 235 | + |
| 236 | + >>> from gcloud import search |
| 237 | + >>> query = search.Query('query text here') |
| 238 | + >>> query.query |
| 239 | + 'query text here' |
| 240 | + |
| 241 | +Specify the fields to return in a query |
| 242 | + |
| 243 | +.. doctest:: |
| 244 | + |
| 245 | + >>> from gcloud import search |
| 246 | + >>> query = search.Query('query text here', fields=['field1', 'field2']) |
| 247 | + >>> query.fields |
| 248 | + ['field1', 'field2'] |
| 249 | + |
| 250 | +Set the sort order of a query |
| 251 | + |
| 252 | +.. doctest:: |
| 253 | + |
| 254 | + >>> from gcloud import search |
| 255 | + >>> query = search.Query('query text here', order_by='field1') |
| 256 | + >>> query.order_by |
| 257 | + 'field1' |
| 258 | + >>> query2 = search.Query('query text here', order_by=['field2', 'field3']) |
| 259 | + >>> query2.order_by |
| 260 | + ['field2', 'field3'] |
| 261 | + >>> # Order descending by field1 and ascending by field2 |
| 262 | + >>> query4 = search.Query('query text here', order_by=['-field1', 'field2']) |
| 263 | + >>> query3.order_by |
| 264 | + ['-field1', 'field2'] |
| 265 | + |
| 266 | +Set custom field expressions on a query |
| 267 | + |
| 268 | +.. doctest:: |
| 269 | + |
| 270 | + >>> from gcloud import search |
| 271 | + >>> query = search.Query('query text here') |
| 272 | + >>> query.add_field_expression('total_price', '(price + tax)') |
| 273 | + >>> # We don't do any checks on the expression. These are checked at query time. |
| 274 | + >>> query.add_field_expression('invalid', 'is_prime(num)') |
| 275 | + >>> query.add_field_expression('bad_field', '(missing_field + tax)') |
| 276 | + |
| 277 | +Set custom field expressions at initialization time |
| 278 | + |
| 279 | +.. doctest:: |
| 280 | + |
| 281 | + >>> from gcloud import search |
| 282 | + >>> query = search.Query('query text here', field_expressions={ |
| 283 | + 'total_price': '(price + tax)'}) |
| 284 | + |
| 285 | +Search an index |
| 286 | + |
| 287 | +.. doctest:: |
| 288 | + |
| 289 | + >>> from gcloud import search |
| 290 | + >>> client = search.Client() |
| 291 | + >>> index = client.get_index('index_id') # API request |
| 292 | + >>> matching = index.search(search.Query('query text here')) # API request |
| 293 | + >>> for document in matching: |
| 294 | + ... print document.id |
| 295 | + |
| 296 | +Search an index with a limit on number of results |
| 297 | + |
| 298 | +.. doctest:: |
| 299 | + |
| 300 | + >>> from gcloud import search |
| 301 | + >>> client = search.Client() |
| 302 | + >>> index = client.get_index('index_id') # API request |
| 303 | + >>> matching = index.search(search.Query('query text here'), |
| 304 | + ... limit=42) # API request |
| 305 | + |
| 306 | +Search an index with a custom page size (advanced) |
| 307 | + |
| 308 | +.. doctest:: |
| 309 | + |
| 310 | + >>> from gcloud import search |
| 311 | + >>> client = search.Client() |
| 312 | + >>> index = client.get_index('index_id') # API request |
| 313 | + >>> matching = index.search(search.Query('query text here'), |
| 314 | + ... page_size=20) # API request |
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