| from django.db import models as dbmodels, connection |
| from django.utils import datastructures |
| from autotest_lib.frontend.afe import model_logic, readonly_connection |
| |
| class TempManager(model_logic.ExtendedManager): |
| _GROUP_COUNT_NAME = 'group_count' |
| |
| def _get_key_unless_is_function(self, field): |
| if '(' in field: |
| return field |
| return self.get_key_on_this_table(field) |
| |
| |
| def _get_field_names(self, fields, extra_select_fields={}): |
| field_names = [] |
| for field in fields: |
| if field in extra_select_fields: |
| field_names.append(field) |
| else: |
| field_names.append(self._get_key_unless_is_function(field)) |
| return field_names |
| |
| |
| def _get_group_query_sql(self, query, group_by, extra_select_fields): |
| group_fields = self._get_field_names(group_by, extra_select_fields) |
| |
| # Clone the queryset, so that we don't change the original |
| query = query.all() |
| |
| # In order to use query.extra(), we need to first clear the limits |
| # and then add them back in after the extra |
| low = query.query.low_mark |
| high = query.query.high_mark |
| query.query.clear_limits() |
| |
| select_fields = dict( |
| (field_name, self._get_key_unless_is_function(field_sql)) |
| for field_name, field_sql in extra_select_fields.iteritems()) |
| query = query.extra(select=select_fields) |
| |
| query.query.set_limits(low=low, high=high) |
| |
| sql, params = query.query.as_sql() |
| |
| # insert GROUP BY clause into query |
| group_by_clause = ' GROUP BY ' + ', '.join(group_fields) |
| group_by_position = sql.rfind('ORDER BY') |
| if group_by_position == -1: |
| group_by_position = len(sql) |
| sql = (sql[:group_by_position] + |
| group_by_clause + ' ' + |
| sql[group_by_position:]) |
| |
| return sql, params |
| |
| |
| def _get_column_names(self, cursor): |
| """\ |
| Gets the column names from the cursor description. This method exists |
| so that it can be mocked in the unit test for sqlite3 compatibility." |
| """ |
| return [column_info[0] for column_info in cursor.description] |
| |
| |
| def execute_group_query(self, query, group_by, extra_select_fields=[]): |
| """ |
| Performs the given query grouped by the fields in group_by with the |
| given extra select fields added. extra_select_fields should be a dict |
| mapping field alias to field SQL. Usually, the extra fields will use |
| group aggregation functions. Returns a list of dicts, where each dict |
| corresponds to single row and contains a key for each grouped field as |
| well as all of the extra select fields. |
| """ |
| sql, params = self._get_group_query_sql(query, group_by, |
| extra_select_fields) |
| cursor = readonly_connection.connection().cursor() |
| cursor.execute(sql, params) |
| field_names = self._get_column_names(cursor) |
| row_dicts = [dict(zip(field_names, row)) for row in cursor.fetchall()] |
| return row_dicts |
| |
| |
| def get_count_sql(self, query): |
| """ |
| Get the SQL to properly select a per-group count of unique matches for |
| a grouped query. Returns a tuple (field alias, field SQL) |
| """ |
| if query.query.distinct: |
| pk_field = self.get_key_on_this_table() |
| count_sql = 'COUNT(DISTINCT %s)' % pk_field |
| else: |
| count_sql = 'COUNT(1)' |
| return self._GROUP_COUNT_NAME, count_sql |
| |
| |
| def _get_num_groups_sql(self, query, group_by): |
| group_fields = self._get_field_names(group_by) |
| query = query.order_by() # this can mess up the query and isn't needed |
| |
| sql, params = query.query.as_sql() |
| from_ = sql[sql.find(' FROM'):] |
| return ('SELECT COUNT(DISTINCT %s) %s' % (','.join(group_fields), |
| from_), |
| params) |
| |
| |
| def get_num_groups(self, query, group_by): |
| """ |
| Returns the number of distinct groups for the given query grouped by the |
| fields in group_by. |
| """ |
| sql, params = self._get_num_groups_sql(query, group_by) |
| cursor = readonly_connection.connection().cursor() |
| cursor.execute(sql, params) |
| return cursor.fetchone()[0] |
| |
| |
| class Machine(dbmodels.Model): |
| machine_idx = dbmodels.AutoField(primary_key=True) |
| hostname = dbmodels.CharField(unique=True, max_length=300) |
| machine_group = dbmodels.CharField(blank=True, max_length=240) |
| owner = dbmodels.CharField(blank=True, max_length=240) |
| |
| class Meta: |
| db_table = 'machines' |
| |
| |
| class Kernel(dbmodels.Model): |
| kernel_idx = dbmodels.AutoField(primary_key=True) |
| kernel_hash = dbmodels.CharField(max_length=105, editable=False) |
| base = dbmodels.CharField(max_length=90) |
| printable = dbmodels.CharField(max_length=300) |
| |
| class Meta: |
| db_table = 'kernels' |
| |
| |
| class Patch(dbmodels.Model): |
| kernel = dbmodels.ForeignKey(Kernel, db_column='kernel_idx') |
| name = dbmodels.CharField(blank=True, max_length=240) |
| url = dbmodels.CharField(blank=True, max_length=900) |
| the_hash = dbmodels.CharField(blank=True, max_length=105, db_column='hash') |
| |
| class Meta: |
| db_table = 'patches' |
| |
| |
| class Status(dbmodels.Model): |
| status_idx = dbmodels.AutoField(primary_key=True) |
| word = dbmodels.CharField(max_length=30) |
| |
| class Meta: |
| db_table = 'status' |
| |
| |
| class Job(dbmodels.Model): |
| job_idx = dbmodels.AutoField(primary_key=True) |
| tag = dbmodels.CharField(unique=True, max_length=300) |
| label = dbmodels.CharField(max_length=300) |
| username = dbmodels.CharField(max_length=240) |
| machine = dbmodels.ForeignKey(Machine, db_column='machine_idx') |
| queued_time = dbmodels.DateTimeField(null=True, blank=True) |
| started_time = dbmodels.DateTimeField(null=True, blank=True) |
| finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| afe_job_id = dbmodels.IntegerField(null=True, default=None) |
| |
| class Meta: |
| db_table = 'jobs' |
| |
| |
| class Test(dbmodels.Model, model_logic.ModelExtensions, |
| model_logic.ModelWithAttributes): |
| test_idx = dbmodels.AutoField(primary_key=True) |
| job = dbmodels.ForeignKey(Job, db_column='job_idx') |
| test = dbmodels.CharField(max_length=90) |
| subdir = dbmodels.CharField(blank=True, max_length=180) |
| kernel = dbmodels.ForeignKey(Kernel, db_column='kernel_idx') |
| status = dbmodels.ForeignKey(Status, db_column='status') |
| reason = dbmodels.CharField(blank=True, max_length=3072) |
| machine = dbmodels.ForeignKey(Machine, db_column='machine_idx') |
| finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| started_time = dbmodels.DateTimeField(null=True, blank=True) |
| |
| objects = model_logic.ExtendedManager() |
| |
| def _get_attribute_model_and_args(self, attribute): |
| return TestAttribute, dict(test=self, attribute=attribute, |
| user_created=True) |
| |
| |
| def set_attribute(self, attribute, value): |
| # ensure non-user-created attributes remain immutable |
| try: |
| TestAttribute.objects.get(test=self, attribute=attribute, |
| user_created=False) |
| raise ValueError('Attribute %s already exists for test %s and is ' |
| 'immutable' % (attribute, self.test_idx)) |
| except TestAttribute.DoesNotExist: |
| super(Test, self).set_attribute(attribute, value) |
| |
| |
| class Meta: |
| db_table = 'tests' |
| |
| |
| class TestAttribute(dbmodels.Model, model_logic.ModelExtensions): |
| test = dbmodels.ForeignKey(Test, db_column='test_idx') |
| attribute = dbmodels.CharField(max_length=90) |
| value = dbmodels.CharField(blank=True, max_length=300) |
| user_created = dbmodels.BooleanField(default=False) |
| |
| objects = model_logic.ExtendedManager() |
| |
| class Meta: |
| db_table = 'test_attributes' |
| |
| |
| class IterationAttribute(dbmodels.Model, model_logic.ModelExtensions): |
| # this isn't really a primary key, but it's necessary to appease Django |
| # and is harmless as long as we're careful |
| test = dbmodels.ForeignKey(Test, db_column='test_idx', primary_key=True) |
| iteration = dbmodels.IntegerField() |
| attribute = dbmodels.CharField(max_length=90) |
| value = dbmodels.CharField(blank=True, max_length=300) |
| |
| objects = model_logic.ExtendedManager() |
| |
| class Meta: |
| db_table = 'iteration_attributes' |
| |
| |
| class IterationResult(dbmodels.Model, model_logic.ModelExtensions): |
| # see comment on IterationAttribute regarding primary_key=True |
| test = dbmodels.ForeignKey(Test, db_column='test_idx', primary_key=True) |
| iteration = dbmodels.IntegerField() |
| attribute = dbmodels.CharField(max_length=90) |
| value = dbmodels.DecimalField(null=True, max_digits=12, decimal_places=31, |
| blank=True) |
| |
| objects = model_logic.ExtendedManager() |
| |
| class Meta: |
| db_table = 'iteration_result' |
| |
| |
| class TestLabel(dbmodels.Model, model_logic.ModelExtensions): |
| name = dbmodels.CharField(max_length=80, unique=True) |
| description = dbmodels.TextField(blank=True) |
| tests = dbmodels.ManyToManyField(Test, blank=True) |
| |
| name_field = 'name' |
| objects = model_logic.ExtendedManager() |
| |
| class Meta: |
| db_table = 'test_labels' |
| |
| |
| class SavedQuery(dbmodels.Model, model_logic.ModelExtensions): |
| # TODO: change this to foreign key once DBs are merged |
| owner = dbmodels.CharField(max_length=80) |
| name = dbmodels.CharField(max_length=100) |
| url_token = dbmodels.TextField() |
| |
| class Meta: |
| db_table = 'saved_queries' |
| |
| |
| class EmbeddedGraphingQuery(dbmodels.Model, model_logic.ModelExtensions): |
| url_token = dbmodels.TextField(null=False, blank=False) |
| graph_type = dbmodels.CharField(max_length=16, null=False, blank=False) |
| params = dbmodels.TextField(null=False, blank=False) |
| last_updated = dbmodels.DateTimeField(null=False, blank=False, |
| editable=False) |
| # refresh_time shows the time at which a thread is updating the cached |
| # image, or NULL if no one is updating the image. This is used so that only |
| # one thread is updating the cached image at a time (see |
| # graphing_utils.handle_plot_request) |
| refresh_time = dbmodels.DateTimeField(editable=False) |
| cached_png = dbmodels.TextField(editable=False) |
| |
| class Meta: |
| db_table = 'embedded_graphing_queries' |
| |
| |
| # views |
| |
| class TestViewManager(TempManager): |
| def get_query_set(self): |
| query = super(TestViewManager, self).get_query_set() |
| |
| # add extra fields to selects, using the SQL itself as the "alias" |
| extra_select = dict((sql, sql) |
| for sql in self.model.extra_fields.iterkeys()) |
| return query.extra(select=extra_select) |
| |
| |
| def _get_include_exclude_suffix(self, exclude): |
| if exclude: |
| return '_exclude' |
| return '_include' |
| |
| |
| def _add_attribute_join(self, query_set, join_condition, |
| suffix=None, exclude=False): |
| if suffix is None: |
| suffix = self._get_include_exclude_suffix(exclude) |
| return self.add_join(query_set, 'test_attributes', join_key='test_idx', |
| join_condition=join_condition, |
| suffix=suffix, exclude=exclude) |
| |
| |
| def _add_label_pivot_table_join(self, query_set, suffix, join_condition='', |
| exclude=False, force_left_join=False): |
| return self.add_join(query_set, 'test_labels_tests', join_key='test_id', |
| join_condition=join_condition, |
| suffix=suffix, exclude=exclude, |
| force_left_join=force_left_join) |
| |
| |
| def _add_label_joins(self, query_set, suffix=''): |
| query_set = self._add_label_pivot_table_join( |
| query_set, suffix=suffix, force_left_join=True) |
| |
| # since we're not joining from the original table, we can't use |
| # self.add_join() again |
| second_join_alias = 'test_labels' + suffix |
| second_join_condition = ('%s.id = %s.testlabel_id' % |
| (second_join_alias, |
| 'test_labels_tests' + suffix)) |
| filter_object = self._CustomSqlQ() |
| filter_object.add_join('test_labels', |
| second_join_condition, |
| query_set.query.LOUTER, |
| alias=second_join_alias) |
| return self._add_customSqlQ(query_set, filter_object) |
| |
| |
| def _get_label_ids_from_names(self, label_names): |
| assert label_names |
| label_ids = list( # listifying avoids a double query below |
| TestLabel.objects.filter(name__in=label_names).values('id')) |
| if len(label_ids) < len(set(label_names)): |
| raise ValueError('Not all labels found: %s' % |
| ', '.join(label_names)) |
| return [str(label['id']) for label in label_ids] |
| |
| |
| def _include_or_exclude_labels(self, query_set, label_names, exclude=False): |
| label_ids = self._get_label_ids_from_names(label_names) |
| suffix = self._get_include_exclude_suffix(exclude) |
| condition = ('test_labels_tests%s.testlabel_id IN (%s)' % |
| (suffix, ','.join(label_ids))) |
| return self._add_label_pivot_table_join(query_set, |
| join_condition=condition, |
| suffix=suffix, |
| exclude=exclude) |
| |
| |
| def get_query_set_with_joins(self, filter_data, include_host_labels=False): |
| include_labels = filter_data.pop('include_labels', []) |
| exclude_labels = filter_data.pop('exclude_labels', []) |
| query_set = self.get_query_set() |
| joined = False |
| |
| # TODO: make this feature obsolete in favor of include_labels and |
| # exclude_labels |
| extra_where = filter_data.get('extra_where', '') |
| if 'test_labels' in extra_where: |
| query_set = self._add_label_joins(query_set) |
| joined = True |
| |
| if include_labels: |
| query_set = self._include_or_exclude_labels(query_set, |
| include_labels) |
| joined = True |
| if exclude_labels: |
| query_set = self._include_or_exclude_labels(query_set, |
| exclude_labels, |
| exclude=True) |
| joined = True |
| |
| include_attributes_where = filter_data.pop('include_attributes_where', |
| '') |
| exclude_attributes_where = filter_data.pop('exclude_attributes_where', |
| '') |
| if include_attributes_where: |
| query_set = self._add_attribute_join( |
| query_set, |
| join_condition=self.escape_user_sql(include_attributes_where)) |
| joined = True |
| if exclude_attributes_where: |
| query_set = self._add_attribute_join( |
| query_set, |
| join_condition=self.escape_user_sql(exclude_attributes_where), |
| exclude=True) |
| joined = True |
| |
| if not joined: |
| filter_data['no_distinct'] = True |
| |
| # TODO: make test_attributes_host_labels obsolete too |
| if include_host_labels or 'test_attributes_host_labels' in extra_where: |
| query_set = self._add_attribute_join( |
| query_set, suffix='_host_labels', |
| join_condition='test_attributes_host_labels.attribute = ' |
| '"host-labels"') |
| |
| return query_set |
| |
| |
| def query_test_ids(self, filter_data): |
| dicts = self.model.query_objects(filter_data).values('test_idx') |
| return [item['test_idx'] for item in dicts] |
| |
| |
| def query_test_label_ids(self, filter_data): |
| query_set = self.model.query_objects(filter_data) |
| query_set = self._add_label_joins(query_set, suffix='_list') |
| rows = self._custom_select_query(query_set, ['test_labels_list.id']) |
| return [row[0] for row in rows if row[0] is not None] |
| |
| |
| def escape_user_sql(self, sql): |
| sql = super(TestViewManager, self).escape_user_sql(sql) |
| return sql.replace('test_idx', self.get_key_on_this_table('test_idx')) |
| |
| |
| def _join_one_iteration_key(self, query_set, result_key, index): |
| suffix = '_%s' % index |
| table_name = IterationResult._meta.db_table |
| alias = table_name + suffix |
| condition_parts = ["%s.attribute = '%s'" % |
| (alias, self.escape_user_sql(result_key))] |
| if index > 0: |
| # after the first join, we need to match up iteration indices, |
| # otherwise each join will expand the query by the number of |
| # iterations and we'll have extraneous rows |
| first_alias = table_name + '_0' |
| condition_parts.append('%s.iteration = %s.iteration' % |
| (alias, first_alias)) |
| |
| condition = ' and '.join(condition_parts) |
| # add a join to IterationResult |
| query_set = self.add_join(query_set, table_name, join_key='test_idx', |
| join_condition=condition, suffix=suffix) |
| # select the iteration value for this join |
| query_set = query_set.extra(select={result_key: '%s.value' % alias}) |
| if index == 0: |
| # pull the iteration index from the first join |
| query_set = query_set.extra( |
| select={'iteration_index': '%s.iteration' % alias}) |
| |
| return query_set |
| |
| |
| def join_iterations(self, test_view_query_set, result_keys): |
| """ |
| Join the given TestView QuerySet to IterationResult. The resulting |
| query looks like a TestView query but has one row per iteration. Each |
| row includes all the attributes of TestView, an attribute for each key |
| in result_keys and an iteration_index attribute. |
| |
| We accomplish this by joining the TestView query to IterationResult |
| once per result key. Each join is restricted on the result key (and on |
| the test index, like all one-to-many joins). For the first join, this |
| is the only restriction, so each TestView row expands to a row per |
| iteration (per iteration that includes the key, of course). For each |
| subsequent join, we also restrict the iteration index to match that of |
| the initial join. This makes each subsequent join produce exactly one |
| result row for each input row. (This assumes each iteration contains |
| the same set of keys.) |
| """ |
| query_set = test_view_query_set |
| for index, result_key in enumerate(result_keys): |
| query_set = self._join_one_iteration_key(query_set, result_key, |
| index) |
| return query_set |
| |
| |
| class TestView(dbmodels.Model, model_logic.ModelExtensions): |
| extra_fields = { |
| 'DATE(job_queued_time)': 'job queued day', |
| 'DATE(test_finished_time)': 'test finished day', |
| } |
| |
| group_fields = [ |
| 'test_name', |
| 'status', |
| 'kernel', |
| 'hostname', |
| 'job_tag', |
| 'job_name', |
| 'platform', |
| 'reason', |
| 'job_owner', |
| 'job_queued_time', |
| 'DATE(job_queued_time)', |
| 'test_started_time', |
| 'test_finished_time', |
| 'DATE(test_finished_time)', |
| ] |
| |
| test_idx = dbmodels.IntegerField('test index', primary_key=True) |
| job_idx = dbmodels.IntegerField('job index', null=True, blank=True) |
| test_name = dbmodels.CharField(blank=True, max_length=90) |
| subdir = dbmodels.CharField('subdirectory', blank=True, max_length=180) |
| kernel_idx = dbmodels.IntegerField('kernel index') |
| status_idx = dbmodels.IntegerField('status index') |
| reason = dbmodels.CharField(blank=True, max_length=3072) |
| machine_idx = dbmodels.IntegerField('host index') |
| test_started_time = dbmodels.DateTimeField(null=True, blank=True) |
| test_finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| job_tag = dbmodels.CharField(blank=True, max_length=300) |
| job_name = dbmodels.CharField(blank=True, max_length=300) |
| job_owner = dbmodels.CharField('owner', blank=True, max_length=240) |
| job_queued_time = dbmodels.DateTimeField(null=True, blank=True) |
| job_started_time = dbmodels.DateTimeField(null=True, blank=True) |
| job_finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| afe_job_id = dbmodels.IntegerField(null=True) |
| hostname = dbmodels.CharField(blank=True, max_length=300) |
| platform = dbmodels.CharField(blank=True, max_length=240) |
| machine_owner = dbmodels.CharField(blank=True, max_length=240) |
| kernel_hash = dbmodels.CharField(blank=True, max_length=105) |
| kernel_base = dbmodels.CharField(blank=True, max_length=90) |
| kernel = dbmodels.CharField(blank=True, max_length=300) |
| status = dbmodels.CharField(blank=True, max_length=30) |
| |
| objects = TestViewManager() |
| |
| def save(self): |
| raise NotImplementedError('TestView is read-only') |
| |
| |
| def delete(self): |
| raise NotImplementedError('TestView is read-only') |
| |
| |
| @classmethod |
| def query_objects(cls, filter_data, initial_query=None): |
| if initial_query is None: |
| initial_query = cls.objects.get_query_set_with_joins(filter_data) |
| return super(TestView, cls).query_objects(filter_data, |
| initial_query=initial_query) |
| |
| |
| @classmethod |
| def list_objects(cls, filter_data, initial_query=None, fields=None): |
| # include extra fields |
| if fields is None: |
| fields = cls.get_field_dict().keys() + cls.extra_fields.keys() |
| return super(TestView, cls).list_objects(filter_data, initial_query, |
| fields) |
| |
| |
| class Meta: |
| db_table = 'test_view_2' |