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Tests written for get_final_version

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This commit is contained in:
M1ha 2019-01-14 11:32:21 +05:00
parent ba3f2f6c1b
commit ec72e31986
3 changed files with 103 additions and 19 deletions
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42
src/django_clickhouse/engines.py
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@ -1,6 +1,7 @@
"""
This file contains wrappers for infi.clckhouse_orm engines to use in django-clickhouse
"""
import datetime
from typing import List, TypeVar, Type
from django.db.models import Model as DjangoModel
@ -8,6 +9,7 @@ from infi.clickhouse_orm import engines as infi_engines
from infi.clickhouse_orm.models import Model as InfiModel
from statsd.defaults.django import statsd
from django_clickhouse.database import connections
from .configuration import config
from .utils import format_datetime
@ -46,11 +48,7 @@ class CollapsingMergeTree(InsertOnlyEngineMixin, infi_engines.CollapsingMergeTre
self.version_col = kwargs.pop('version_col', None)
super(CollapsingMergeTree, self).__init__(*args, **kwargs)
def _get_final_versions_by_version(self, model_cls, min_date, max_date, object_pks):
db = model_cls.get_database()
min_date = format_datetime(min_date, 0, db_alias=db.db_alias)
max_date = format_datetime(min_date, 0, day_end=True, db_alias=db.db_alias)
def _get_final_versions_by_version(self, db_alias, model_cls, min_date, max_date, object_pks):
query = """
SELECT * FROM $table WHERE (`{pk_column}`, `{version_col}`) IN (
SELECT `{pk_column}`, MAX(`{version_col}`)
@ -60,24 +58,20 @@ class CollapsingMergeTree(InsertOnlyEngineMixin, infi_engines.CollapsingMergeTre
GROUP BY `{pk_column}`
)
""".format(version_col=self.version_col, date_col=self.date_col, pk_column=self.pk_column,
min_date=min_date.isoformat(), max_date=max_date.isoformat(), object_pks=','.join(object_pks))
min_date=min_date, max_date=max_date, object_pks=','.join(object_pks))
qs = db.select(query, model_class=model_cls)
qs = connections[db_alias].select(query, model_class=model_cls)
return list(qs)
def _get_final_versions_by_final(self, model_cls, min_date, max_date, object_pks):
db = model_cls.get_database()
min_date = format_datetime(min_date, 0, db_alias=db.db_alias)
max_date = format_datetime(min_date, 0, day_end=True, db_alias=db.db_alias)
def _get_final_versions_by_final(self, db_alias, model_cls, min_date, max_date, object_pks):
query = """
SELECT * FROM $table FINAL
WHERE `{date_col}` >= '{min_date}' AND `{date_col}` <= '{max_date}'
AND `{pk_column}` IN ({object_pks})
"""
query = query.format(date_col=self.date_col, pk_column=self.pk_column, min_date=min_date.isoformat(),
max_date=max_date.isoformat(), object_pks=','.join(object_pks))
qs = db.select(query, model_class=model_cls)
query = query.format(date_col=self.date_col, pk_column=self.pk_column, min_date=min_date,
max_date=max_date, object_pks=','.join(object_pks))
qs = connections[db_alias].select(query, model_class=model_cls)
return list(qs)
def get_final_versions(self, model_cls, objects):
@ -105,10 +99,22 @@ class CollapsingMergeTree(InsertOnlyEngineMixin, infi_engines.CollapsingMergeTre
object_pks = [str(getattr(obj, self.pk_column)) for obj in objects]
if self.version_col:
return self._get_final_versions_by_version(model_cls, min_date, max_date, object_pks)
db_alias = model_cls.get_database_alias()
if isinstance(min_date, datetime.date):
min_date = min_date.isoformat()
else:
return self._get_final_versions_by_final(model_cls, min_date, max_date, object_pks)
min_date = format_datetime(min_date, 0, db_alias=db_alias)
if isinstance(max_date, datetime.date):
max_date = max_date.isoformat()
else:
max_date = format_datetime(max_date, 0, day_end=True, db_alias=db_alias)
if self.version_col:
return self._get_final_versions_by_version(db_alias, model_cls, min_date, max_date, object_pks)
else:
return self._get_final_versions_by_final(db_alias, model_cls, min_date, max_date, object_pks)
def get_insert_batch(self, model_cls, objects):
# type: (Type[T], List[DjangoModel]) -> List[T]

79
tests/test_engines.py Normal file
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@ -0,0 +1,79 @@
import datetime
from django.test import TestCase
from django_clickhouse.migrations import migrate_app
from django_clickhouse.database import connections
from tests.clickhouse_models import ClickHouseCollapseTestModel
from tests.models import TestModel
class CollapsingMergeTreeTest(TestCase):
fixtures = ['test_model']
maxDiff = None
collapse_fixture = [{
"id": 1,
"created_date": "2018-01-01",
"sign": 1,
"version": 1
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": -1,
"version": 1
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": 1,
"version": 2
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": -1,
"version": 2
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": 1,
"version": 3
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": -1,
"version": 3
}, {
"id": 1,
"created_date": "2018-01-01",
"sign": 1,
"version": 4
}]
def setUp(self):
self.db = connections['default']
self.db.drop_database()
self.db.create_database()
migrate_app('tests', 'default')
ClickHouseCollapseTestModel.get_storage().flush()
ClickHouseCollapseTestModel.objects.bulk_create([
ClickHouseCollapseTestModel(**item) for item in self.collapse_fixture
])
self.objects = TestModel.objects.filter(id=1)
def test_get_final_versions_by_final(self):
final_versions = ClickHouseCollapseTestModel.engine.get_final_versions(ClickHouseCollapseTestModel,
self.objects)
self.assertEqual(1, len(final_versions))
self.assertDictEqual({'id': 1, 'sign': 1, 'version': 4, 'value': 0, 'created_date': datetime.date(2018, 1, 1)},
final_versions[0].to_dict())
def test_get_final_versions_by_version(self):
ClickHouseCollapseTestModel.engine.version_col = 'version'
final_versions = ClickHouseCollapseTestModel.engine.get_final_versions(ClickHouseCollapseTestModel,
self.objects)
self.assertEqual(1, len(final_versions))
self.assertDictEqual({'id': 1, 'sign': 1, 'version': 4, 'value': 0, 'created_date': datetime.date(2018, 1, 1)},
final_versions[0].to_dict())

1
tests/test_sync.py
View File

@ -22,7 +22,6 @@ class SyncTest(TransactionTestCase):
def setUp(self):
self.db = connections['default']
self.db.drop_database()
self.db.db_exists = False
self.db.create_database()
migrate_app('tests', 'default')
ClickHouseTestModel.get_storage().flush()