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author | Ed Morley <emorley@mozilla.com> | 2016-12-01 15:54:58 +0000 |
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committer | Tim Graham <timograham@gmail.com> | 2016-12-01 13:25:48 -0500 |
commit | dd2e4d7b5d6f24f33c2805b0bfb97a08e27b2125 (patch) | |
tree | 020cbce7a3c56d456b74f819d2e6263d2b28dcfc /tests/indexes | |
parent | 47744a0a4ed0b9e2d3f52de65abcf6cef9a14e31 (diff) | |
download | django-dd2e4d7b5d6f24f33c2805b0bfb97a08e27b2125.tar.gz |
Refs #27558 -- Added test for no index on InnoDB ForeignKey.
The refactor in 3f76d1402dac9c2993d588f996dc1c331edbc9a7 fixed the creation
of redundant indexes.
Forwardport of 82ce55dbbe2d96e8b5d1fcb4a1d52b73e08e7929 from stable/1.10.x
Diffstat (limited to 'tests/indexes')
-rw-r--r-- | tests/indexes/tests.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tests/indexes/tests.py b/tests/indexes/tests.py index 3ef6d2939b..81e2278b19 100644 --- a/tests/indexes/tests.py +++ b/tests/indexes/tests.py @@ -1,6 +1,8 @@ from unittest import skipUnless from django.db import connection +from django.db.models.deletion import CASCADE +from django.db.models.fields.related import ForeignKey from django.test import TestCase from .models import Article, ArticleTranslation, IndexTogetherSingleList @@ -98,3 +100,15 @@ class SchemaIndexesTests(TestCase): 'CREATE INDEX `indexes_articletranslation_article_no_constraint_id_d6c0806b` ' 'ON `indexes_articletranslation` (`article_no_constraint_id`)' ]) + + # The index also shouldn't be created if the ForeignKey is added after + # the model was created. + with connection.schema_editor() as editor: + new_field = ForeignKey(Article, CASCADE) + new_field.set_attributes_from_name('new_foreign_key') + editor.add_field(ArticleTranslation, new_field) + self.assertEqual(editor.deferred_sql, [ + 'ALTER TABLE `indexes_articletranslation` ' + 'ADD CONSTRAINT `indexes_articletrans_new_foreign_key_id_d27a9146_fk_indexes_a` ' + 'FOREIGN KEY (`new_foreign_key_id`) REFERENCES `indexes_article` (`id`)' + ]) |