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Eager loading on One-to-X foreign keys

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In this changeset, I added ORM relationships to the DB models
concerning the already-declared foreign keys.
I also modified the DB query building to now handle a new 'eager'
parameter that, if True, is responsible to also fetch the data
relative to these 'parent' DB entities (no cascading).

Change-Id: Ieea181af9a4b173c54621dcc6c549161f5a35aeb
Partially-Implements: blueprint watcher-versioned-objects
This commit is contained in:
Vincent Françoise
2016-09-23 11:00:41 +02:00
parent aae3f79fef
commit 750e6bf213
13 changed files with 534 additions and 302 deletions
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10
watcher/tests/db/test_scoring_engine.py
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@@ -235,7 +235,7 @@ class DbScoringEngineTestCase(base.DbTestCase):
def test_get_scoring_engine_list(self):
names = []
for i in range(1, 6):
for i in range(1, 4):
scoring_engine = utils.create_test_scoring_engine(
id=i,
uuid=w_utils.generate_uuid(),
@@ -243,9 +243,9 @@ class DbScoringEngineTestCase(base.DbTestCase):
description='My ScoringEngine {0}'.format(i),
metainfo='a{0}=b{0}'.format(i))
names.append(six.text_type(scoring_engine['name']))
res = self.dbapi.get_scoring_engine_list(self.context)
res_names = [r.name for r in res]
self.assertEqual(names.sort(), res_names.sort())
scoring_engines = self.dbapi.get_scoring_engine_list(self.context)
scoring_engines_names = [se.name for se in scoring_engines]
self.assertEqual(sorted(names), sorted(scoring_engines_names))
def test_get_scoring_engine_list_with_filters(self):
scoring_engine1 = self._create_test_scoring_engine(
@@ -310,7 +310,7 @@ class DbScoringEngineTestCase(base.DbTestCase):
self.assertRaises(exception.Invalid,
self.dbapi.update_scoring_engine,
scoring_engine['id'],
{'id': 5})
{'uuid': w_utils.generate_uuid()})
def test_update_scoring_engine_that_does_not_exist(self):
self.assertRaises(exception.ScoringEngineNotFound,