(obj, session, deleted=False)
| 259 | |
| 260 | |
| 261 | def create_version(obj, session, deleted=False): |
| 262 | obj_mapper = object_mapper(obj) |
| 263 | history_mapper = obj.__history_mapper__ |
| 264 | history_cls = history_mapper.class_ |
| 265 | |
| 266 | obj_state = attributes.instance_state(obj) |
| 267 | |
| 268 | attr = {} |
| 269 | |
| 270 | obj_changed = False |
| 271 | |
| 272 | for om, hm in zip( |
| 273 | obj_mapper.iterate_to_root(), history_mapper.iterate_to_root() |
| 274 | ): |
| 275 | if hm.single: |
| 276 | continue |
| 277 | |
| 278 | for hist_col in hm.local_table.c: |
| 279 | if _is_versioning_col(hist_col): |
| 280 | continue |
| 281 | |
| 282 | obj_col = om.local_table.c[hist_col.key] |
| 283 | |
| 284 | # get the value of the |
| 285 | # attribute based on the MapperProperty related to the |
| 286 | # mapped column. this will allow usage of MapperProperties |
| 287 | # that have a different keyname than that of the mapped column. |
| 288 | try: |
| 289 | prop = obj_mapper.get_property_by_column(obj_col) |
| 290 | except UnmappedColumnError: |
| 291 | # in the case of single table inheritance, there may be |
| 292 | # columns on the mapped table intended for the subclass only. |
| 293 | # the "unmapped" status of the subclass column on the |
| 294 | # base class is a feature of the declarative module. |
| 295 | continue |
| 296 | |
| 297 | # expired object attributes and also deferred cols might not |
| 298 | # be in the dict. force it to load no matter what by |
| 299 | # using getattr(). |
| 300 | if prop.key not in obj_state.dict: |
| 301 | getattr(obj, prop.key) |
| 302 | |
| 303 | a, u, d = attributes.get_history(obj, prop.key) |
| 304 | |
| 305 | if d: |
| 306 | attr[prop.key] = d[0] |
| 307 | obj_changed = True |
| 308 | elif u: |
| 309 | attr[prop.key] = u[0] |
| 310 | elif a: |
| 311 | # if the attribute had no value. |
| 312 | attr[prop.key] = a[0] |
| 313 | obj_changed = True |
| 314 | |
| 315 | if not obj_changed: |
| 316 | # not changed, but we have relationships. OK |
| 317 | # check those too |
| 318 | for prop in obj_mapper.iterate_properties: |
no test coverage detected