showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 1 | from django.db import models as dbmodels, connection |
| 2 | from django.utils import datastructures |
| 3 | from autotest_lib.frontend.afe import model_logic, readonly_connection |
| 4 | |
| 5 | class TempManager(model_logic.ExtendedManager): |
| 6 | _GROUP_COUNT_NAME = 'group_count' |
| 7 | |
| 8 | def _get_key_unless_is_function(self, field): |
| 9 | if '(' in field: |
| 10 | return field |
| 11 | return self._get_key_on_this_table(field) |
| 12 | |
| 13 | |
| 14 | def _get_field_names(self, fields): |
| 15 | return [self._get_key_unless_is_function(field) for field in fields] |
| 16 | |
| 17 | |
| 18 | def _get_group_query_sql(self, query, group_by, extra_select_fields): |
| 19 | group_fields = self._get_field_names(group_by) |
| 20 | if query._distinct: |
| 21 | pk_field = self._get_key_on_this_table(self.model._meta.pk.name) |
| 22 | count_sql = 'COUNT(DISTINCT %s)' % pk_field |
| 23 | else: |
| 24 | count_sql = 'COUNT(1)' |
| 25 | select_fields = (group_fields + |
| 26 | [count_sql + ' AS ' + self._GROUP_COUNT_NAME] + |
| 27 | extra_select_fields) |
| 28 | |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 29 | # add the count field to the query selects, so they'll be sortable and |
| 30 | # Django won't mess with any of them |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 31 | query._select[self._GROUP_COUNT_NAME] = count_sql |
| 32 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 33 | _, where, params = query._get_sql_clause() |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 34 | |
| 35 | # insert GROUP BY clause into query |
| 36 | group_by_clause = 'GROUP BY ' + ', '.join(group_fields) |
| 37 | group_by_position = where.rfind('ORDER BY') |
| 38 | if group_by_position == -1: |
| 39 | group_by_position = len(where) |
| 40 | where = (where[:group_by_position] + |
| 41 | group_by_clause + ' ' + |
| 42 | where[group_by_position:]) |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 43 | |
| 44 | return ('SELECT ' + ', '.join(select_fields) + where), params |
| 45 | |
| 46 | |
| 47 | def get_group_counts(self, query, group_by, extra_select_fields=[]): |
| 48 | """ |
| 49 | Performs the given query grouped by the fields in group_by. Returns a |
| 50 | list of rows, where each row is a list containing the value of each |
| 51 | field in group_by, followed by the group count. |
| 52 | """ |
| 53 | sql, params = self._get_group_query_sql(query, group_by, |
| 54 | extra_select_fields) |
| 55 | cursor = readonly_connection.connection.cursor() |
| 56 | num_rows = cursor.execute(sql, params) |
| 57 | return cursor.fetchall() |
| 58 | |
| 59 | |
| 60 | def _get_num_groups_sql(self, query, group_by): |
| 61 | group_fields = self._get_field_names(group_by) |
| 62 | query._order_by = None # this can mess up the query is isn't needed |
| 63 | _, where, params = query._get_sql_clause() |
| 64 | return ('SELECT COUNT(DISTINCT %s) %s' % (','.join(group_fields), |
| 65 | where), |
| 66 | params) |
| 67 | |
| 68 | |
| 69 | def get_num_groups(self, query, group_by): |
| 70 | """ |
| 71 | Returns the number of distinct groups for the given query grouped by the |
| 72 | fields in group_by. |
| 73 | """ |
| 74 | sql, params = self._get_num_groups_sql(query, group_by) |
| 75 | cursor = readonly_connection.connection.cursor() |
| 76 | cursor.execute(sql, params) |
| 77 | return cursor.fetchone()[0] |
| 78 | |
| 79 | |
| 80 | class Machine(dbmodels.Model): |
| 81 | machine_idx = dbmodels.IntegerField(primary_key=True) |
| 82 | hostname = dbmodels.CharField(unique=True, maxlength=300) |
| 83 | machine_group = dbmodels.CharField(blank=True, maxlength=240) |
| 84 | owner = dbmodels.CharField(blank=True, maxlength=240) |
| 85 | |
| 86 | class Meta: |
| 87 | db_table = 'machines' |
| 88 | |
| 89 | |
| 90 | class Kernel(dbmodels.Model): |
| 91 | kernel_idx = dbmodels.IntegerField(primary_key=True) |
| 92 | kernel_hash = dbmodels.CharField(maxlength=105, editable=False) |
| 93 | base = dbmodels.CharField(maxlength=90) |
| 94 | printable = dbmodels.CharField(maxlength=300) |
| 95 | |
| 96 | class Meta: |
| 97 | db_table = 'kernels' |
| 98 | |
| 99 | |
| 100 | class Patch(dbmodels.Model): |
| 101 | kernel = dbmodels.ForeignKey(Kernel, db_column='kernel_idx') |
| 102 | name = dbmodels.CharField(blank=True, maxlength=240) |
| 103 | url = dbmodels.CharField(blank=True, maxlength=900) |
| 104 | hash_ = dbmodels.CharField(blank=True, maxlength=105, db_column='hash') |
| 105 | |
| 106 | class Meta: |
| 107 | db_table = 'patches' |
| 108 | |
| 109 | |
| 110 | class Status(dbmodels.Model): |
| 111 | status_idx = dbmodels.IntegerField(primary_key=True) |
| 112 | word = dbmodels.CharField(maxlength=30) |
| 113 | |
| 114 | class Meta: |
| 115 | db_table = 'status' |
| 116 | |
| 117 | |
| 118 | class Job(dbmodels.Model): |
| 119 | job_idx = dbmodels.IntegerField(primary_key=True) |
| 120 | tag = dbmodels.CharField(unique=True, maxlength=300) |
| 121 | label = dbmodels.CharField(maxlength=300) |
| 122 | username = dbmodels.CharField(maxlength=240) |
| 123 | machine = dbmodels.ForeignKey(Machine, db_column='machine_idx') |
| 124 | queued_time = dbmodels.DateTimeField(null=True, blank=True) |
| 125 | started_time = dbmodels.DateTimeField(null=True, blank=True) |
| 126 | finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| 127 | |
| 128 | class Meta: |
| 129 | db_table = 'jobs' |
| 130 | |
| 131 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 132 | class Test(dbmodels.Model): |
| 133 | test_idx = dbmodels.IntegerField(primary_key=True) |
| 134 | job = dbmodels.ForeignKey(Job, db_column='job_idx') |
| 135 | test = dbmodels.CharField(maxlength=90) |
| 136 | subdir = dbmodels.CharField(blank=True, maxlength=180) |
| 137 | kernel = dbmodels.ForeignKey(Kernel, db_column='kernel_idx') |
| 138 | status = dbmodels.ForeignKey(Status, db_column='status') |
| 139 | reason = dbmodels.CharField(blank=True, maxlength=3072) |
| 140 | machine = dbmodels.ForeignKey(Machine, db_column='machine_idx') |
| 141 | finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| 142 | started_time = dbmodels.DateTimeField(null=True, blank=True) |
| 143 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 144 | class Meta: |
| 145 | db_table = 'tests' |
| 146 | |
| 147 | |
| 148 | class TestAttribute(dbmodels.Model): |
| 149 | test = dbmodels.ForeignKey(Test, db_column='test_idx') |
| 150 | attribute = dbmodels.CharField(maxlength=90) |
| 151 | value = dbmodels.CharField(blank=True, maxlength=300) |
| 152 | |
| 153 | class Meta: |
| 154 | db_table = 'test_attributes' |
| 155 | |
| 156 | |
| 157 | class IterationAttribute(dbmodels.Model): |
| 158 | test = dbmodels.ForeignKey(Test, db_column='test_idx') |
| 159 | iteration = dbmodels.IntegerField() |
| 160 | attribute = dbmodels.CharField(maxlength=90) |
| 161 | value = dbmodels.CharField(blank=True, maxlength=300) |
| 162 | |
| 163 | class Meta: |
| 164 | db_table = 'iteration_attributes' |
| 165 | |
| 166 | |
| 167 | class IterationResult(dbmodels.Model): |
| 168 | test = dbmodels.ForeignKey(Test, db_column='test_idx') |
| 169 | iteration = dbmodels.IntegerField() |
| 170 | attribute = dbmodels.CharField(maxlength=90) |
| 171 | value = dbmodels.FloatField(null=True, max_digits=12, decimal_places=31, |
| 172 | blank=True) |
| 173 | |
| 174 | class Meta: |
| 175 | db_table = 'iteration_result' |
| 176 | |
| 177 | |
| 178 | class TestLabel(dbmodels.Model, model_logic.ModelExtensions): |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 179 | name = dbmodels.CharField(maxlength=80, unique=True) |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 180 | description = dbmodels.TextField(blank=True) |
| 181 | tests = dbmodels.ManyToManyField(Test, blank=True, |
| 182 | filter_interface=dbmodels.HORIZONTAL) |
| 183 | |
| 184 | name_field = 'name' |
| 185 | |
| 186 | class Meta: |
| 187 | db_table = 'test_labels' |
| 188 | |
| 189 | |
| 190 | class SavedQuery(dbmodels.Model, model_logic.ModelExtensions): |
| 191 | # TODO: change this to foreign key once DBs are merged |
| 192 | owner = dbmodels.CharField(maxlength=80) |
| 193 | name = dbmodels.CharField(maxlength=100) |
| 194 | url_token = dbmodels.TextField() |
| 195 | |
| 196 | class Meta: |
| 197 | db_table = 'saved_queries' |
| 198 | |
| 199 | |
showard | ce12f55 | 2008-09-19 00:48:59 +0000 | [diff] [blame^] | 200 | class EmbeddedGraphingQuery(dbmodels.Model, model_logic.ModelExtensions): |
| 201 | url_token = dbmodels.TextField(null=False, blank=False) |
| 202 | graph_type = dbmodels.CharField(maxlength=16, null=False, blank=False) |
| 203 | params = dbmodels.TextField(null=False, blank=False) |
| 204 | last_updated = dbmodels.DateTimeField(null=False, blank=False, |
| 205 | editable=False) |
| 206 | # refresh_time shows the time at which a thread is updating the cached |
| 207 | # image, or NULL if no one is updating the image. This is used so that only |
| 208 | # one thread is updating the cached image at a time (see |
| 209 | # graphing_utils.handle_plot_request) |
| 210 | refresh_time = dbmodels.DateTimeField(editable=False) |
| 211 | cached_png = dbmodels.TextField(editable=False) |
| 212 | |
| 213 | class Meta: |
| 214 | db_table = 'embedded_graphing_queries' |
| 215 | |
| 216 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 217 | # views |
| 218 | |
| 219 | class TestViewManager(TempManager): |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 220 | class _CustomSqlQ(dbmodels.Q): |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 221 | def __init__(self): |
| 222 | self._joins = datastructures.SortedDict() |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 223 | self._where, self._params = [], [] |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 224 | |
| 225 | |
| 226 | def add_join(self, table, condition, join_type, alias=None): |
| 227 | if alias is None: |
| 228 | alias = table |
| 229 | self._joins[alias] = (table, join_type, condition) |
| 230 | |
| 231 | |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 232 | def add_where(self, where, params=[]): |
| 233 | self._where.append(where) |
| 234 | self._params.extend(params) |
| 235 | |
| 236 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 237 | def get_sql(self, opts): |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 238 | return self._joins, self._where, self._params |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 239 | |
| 240 | |
| 241 | def get_query_set(self): |
| 242 | query = super(TestViewManager, self).get_query_set() |
showard | 5bf7c50 | 2008-08-20 01:22:22 +0000 | [diff] [blame] | 243 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 244 | # add extra fields to selects, using the SQL itself as the "alias" |
| 245 | extra_select = dict((sql, sql) |
| 246 | for sql in self.model.extra_fields.iterkeys()) |
| 247 | return query.extra(select=extra_select) |
| 248 | |
| 249 | |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 250 | def _add_label_joins(self, query_set, suffix = '', join_condition='', |
| 251 | exclude=False): |
showard | 0281350 | 2008-08-20 20:52:56 +0000 | [diff] [blame] | 252 | table_name = self.model._meta.db_table |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 253 | first_join_alias = 'test_labels_tests' + suffix |
| 254 | first_join_condition = '%s.test_id = %s.test_idx' % (first_join_alias, |
| 255 | table_name) |
| 256 | if join_condition: |
| 257 | first_join_condition += ' AND ' + join_condition |
| 258 | filter_object = self._CustomSqlQ() |
| 259 | filter_object.add_join('test_labels_tests', |
| 260 | first_join_condition, |
| 261 | 'LEFT JOIN', |
| 262 | alias=first_join_alias) |
| 263 | |
| 264 | second_join_alias = 'test_labels' + suffix |
| 265 | second_join_condition = ('%s.id = %s.testlabel_id' % |
| 266 | (second_join_alias, first_join_alias)) |
| 267 | filter_object.add_join('test_labels', |
| 268 | second_join_condition, |
| 269 | 'LEFT JOIN', |
| 270 | alias=second_join_alias) |
| 271 | |
| 272 | if exclude: |
| 273 | filter_object.add_where(first_join_alias + '.testlabel_id IS NULL') |
| 274 | return query_set.filter(filter_object).distinct() |
| 275 | |
| 276 | |
| 277 | def _get_label_ids_from_names(self, label_names): |
| 278 | query = TestLabel.objects.filter(name__in=label_names).values('id') |
| 279 | return [label['id'] for label in query] |
showard | 0281350 | 2008-08-20 20:52:56 +0000 | [diff] [blame] | 280 | |
| 281 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 282 | def get_query_set_with_labels(self, filter_data): |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 283 | exclude_labels = filter_data.pop('exclude_labels', []) |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 284 | query_set = self.get_query_set() |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 285 | joined = False |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 286 | # TODO: make this check more thorough if necessary |
| 287 | if 'test_labels' in filter_data.get('extra_where', ''): |
showard | 0281350 | 2008-08-20 20:52:56 +0000 | [diff] [blame] | 288 | query_set = self._add_label_joins(query_set) |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 289 | joined = True |
| 290 | |
| 291 | if exclude_labels: |
| 292 | label_ids = self._get_label_ids_from_names(exclude_labels) |
| 293 | condition = ('test_labels_tests_exclude.testlabel_id IN (%s)' % |
| 294 | ','.join(str(label_id) for label_id in label_ids)) |
| 295 | query_set = self._add_label_joins(query_set, suffix='_exclude', |
| 296 | join_condition=condition, |
| 297 | exclude=True) |
| 298 | joined = True |
| 299 | |
| 300 | if not joined: |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 301 | filter_data['no_distinct'] = True |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 302 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 303 | return query_set |
| 304 | |
| 305 | |
showard | 0281350 | 2008-08-20 20:52:56 +0000 | [diff] [blame] | 306 | def query_test_ids(self, filter_data): |
| 307 | dicts = self.model.query_objects(filter_data).values('test_idx') |
| 308 | return [item['test_idx'] for item in dicts] |
| 309 | |
| 310 | |
| 311 | def _custom_select_query(self, query_set, selects): |
| 312 | query_selects, where, params = query_set._get_sql_clause() |
| 313 | if query_set._distinct: |
| 314 | distinct = 'DISTINCT ' |
| 315 | else: |
| 316 | distinct = '' |
| 317 | sql_query = 'SELECT ' + distinct + ','.join(selects) + where |
| 318 | cursor = readonly_connection.connection.cursor() |
| 319 | cursor.execute(sql_query, params) |
| 320 | return cursor.fetchall() |
| 321 | |
| 322 | |
| 323 | def query_test_label_ids(self, filter_data): |
showard | d50ffb4 | 2008-09-04 02:47:45 +0000 | [diff] [blame] | 324 | query_set = self.model.query_objects(filter_data) |
| 325 | query_set = self._add_label_joins(query_set, suffix='_list') |
| 326 | rows = self._custom_select_query(query_set, ['test_labels_list.id']) |
| 327 | return [row[0] for row in rows if row[0] is not None] |
showard | 0281350 | 2008-08-20 20:52:56 +0000 | [diff] [blame] | 328 | |
| 329 | |
showard | 3544486 | 2008-08-07 22:35:30 +0000 | [diff] [blame] | 330 | class TestView(dbmodels.Model, model_logic.ModelExtensions): |
| 331 | extra_fields = { |
| 332 | 'DATE(test_finished_time)' : 'test finished day', |
| 333 | } |
| 334 | |
| 335 | group_fields = [ |
| 336 | 'test_name', |
| 337 | 'status', |
| 338 | 'kernel', |
| 339 | 'hostname', |
| 340 | 'job_tag', |
| 341 | 'job_name', |
| 342 | 'platform', |
| 343 | 'reason', |
| 344 | 'job_owner', |
| 345 | 'test_finished_time', |
| 346 | 'DATE(test_finished_time)', |
| 347 | ] |
| 348 | |
| 349 | test_idx = dbmodels.IntegerField('test index', primary_key=True) |
| 350 | job_idx = dbmodels.IntegerField('job index', null=True, blank=True) |
| 351 | test_name = dbmodels.CharField(blank=True, maxlength=90) |
| 352 | subdir = dbmodels.CharField('subdirectory', blank=True, maxlength=180) |
| 353 | kernel_idx = dbmodels.IntegerField('kernel index') |
| 354 | status_idx = dbmodels.IntegerField('status index') |
| 355 | reason = dbmodels.CharField(blank=True, maxlength=3072) |
| 356 | machine_idx = dbmodels.IntegerField('host index') |
| 357 | test_started_time = dbmodels.DateTimeField(null=True, blank=True) |
| 358 | test_finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| 359 | job_tag = dbmodels.CharField(blank=True, maxlength=300) |
| 360 | job_name = dbmodels.CharField(blank=True, maxlength=300) |
| 361 | job_owner = dbmodels.CharField('owner', blank=True, maxlength=240) |
| 362 | job_queued_time = dbmodels.DateTimeField(null=True, blank=True) |
| 363 | job_started_time = dbmodels.DateTimeField(null=True, blank=True) |
| 364 | job_finished_time = dbmodels.DateTimeField(null=True, blank=True) |
| 365 | hostname = dbmodels.CharField(blank=True, maxlength=300) |
| 366 | platform = dbmodels.CharField(blank=True, maxlength=240) |
| 367 | machine_owner = dbmodels.CharField(blank=True, maxlength=240) |
| 368 | kernel_hash = dbmodels.CharField(blank=True, maxlength=105) |
| 369 | kernel_base = dbmodels.CharField(blank=True, maxlength=90) |
| 370 | kernel = dbmodels.CharField(blank=True, maxlength=300) |
| 371 | status = dbmodels.CharField(blank=True, maxlength=30) |
| 372 | |
| 373 | objects = TestViewManager() |
| 374 | |
| 375 | def save(self): |
| 376 | raise NotImplementedError('TestView is read-only') |
| 377 | |
| 378 | |
| 379 | def delete(self): |
| 380 | raise NotImplementedError('TestView is read-only') |
| 381 | |
| 382 | |
| 383 | @classmethod |
| 384 | def query_objects(cls, filter_data, initial_query=None): |
| 385 | if initial_query is None: |
| 386 | initial_query = cls.objects.get_query_set_with_labels(filter_data) |
| 387 | return super(TestView, cls).query_objects(filter_data, |
| 388 | initial_query=initial_query) |
| 389 | |
| 390 | |
| 391 | @classmethod |
| 392 | def list_objects(cls, filter_data, initial_query=None): |
| 393 | """ |
| 394 | Django's ValuesQuerySet (used when you call query.values()) doesn't |
| 395 | support custom select fields, so we have to basically reimplement it |
| 396 | here. |
| 397 | TODO: merge this up to ModelExtensions after some settling time. |
| 398 | """ |
| 399 | query = cls.query_objects(filter_data, initial_query=initial_query) |
| 400 | object_dicts = [] |
| 401 | for model_object in query: |
| 402 | object_dict = model_object.get_object_dict() |
| 403 | for sql in cls.extra_fields.iterkeys(): |
| 404 | object_dict[sql] = getattr(model_object, sql) |
| 405 | object_dicts.append(object_dict) |
| 406 | return object_dicts |
| 407 | |
| 408 | |
| 409 | class Meta: |
| 410 | db_table = 'test_view_2' |