How to use _join_one_iteration_key method in autotest

Best Python code snippet using autotest_python Github


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...335 query_set, 'host-labels',336 alias=alias, extra_join_condition=condition)337 query_set = self._add_select_ifnull(query_set, alias, label_name)338 return query_set339 def _join_one_iteration_key(self, query_set, result_key, first_alias=None):340 alias = 'iteration_result_' + result_key341 iteration_query = IterationResult.objects.filter(attribute=result_key)342 if first_alias:343 # after the first join, we need to match up iteration indices,344 # otherwise each join will expand the query by the number of345 # iterations and we'll have extraneous rows346 iteration_query = iteration_query.extra(347 where=['%s.iteration = %s.iteration'348 % (_quote_name(alias), _quote_name(first_alias))])349 query_set = Test.objects.join_custom_field(query_set, iteration_query,350 alias, left_join=False)351 # select the iteration value and index for this join352 query_set = self._add_select_value(query_set, alias)353 if not first_alias:354 # for first join, add iteration index select too355 query_set = self._add_custom_select(356 query_set, 'iteration_index',357 _quote_name(alias) + '.iteration')358 return query_set, alias359 def _join_iteration_results(self, test_view_query_set, result_keys):360 """Join the given TestView QuerySet to IterationResult for one result.361 The resulting query looks like a TestView query but has one row per362 iteration. Each row includes all the attributes of TestView, an363 attribute for each key in result_keys and an iteration_index attribute.364 We accomplish this by joining the TestView query to IterationResult365 once per result key. Each join is restricted on the result key (and on366 the test index, like all one-to-many joins). For the first join, this367 is the only restriction, so each TestView row expands to a row per368 iteration (per iteration that includes the key, of course). For each369 subsequent join, we also restrict the iteration index to match that of370 the initial join. This makes each subsequent join produce exactly one371 result row for each input row. (This assumes each iteration contains372 the same set of keys. Results are undefined if that's not true.)373 """374 if not result_keys:375 return test_view_query_set376 query_set, first_alias = self._join_one_iteration_key(377 test_view_query_set, result_keys[0])378 for result_key in result_keys[1:]:379 query_set, _ = self._join_one_iteration_key(query_set, result_key,380 first_alias=first_alias)381 return query_set382 def _join_job_keyvals(self, query_set, job_keyvals):383 for job_keyval in job_keyvals:384 alias = 'job_keyval_' + job_keyval385 keyval_query = JobKeyval.objects.filter(key=job_keyval)386 query_set = Job.objects.join_custom_field(query_set, keyval_query,387 alias)388 query_set = self._add_select_value(query_set, alias)389 return query_set390 def _join_iteration_attributes(self, query_set, iteration_attributes):391 for attribute in iteration_attributes:392 alias = 'iteration_attribute_' + attribute393 attribute_query = IterationAttribute.objects.filter(...

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