From 51c5d9e4e92195aeb080350698f87a082d69b1ed Mon Sep 17 00:00:00 2001
From: Silvie Chlupova <sisi.chlupova@gmail.com>
Date: Aug 15 2019 11:24:25 +0000
Subject: Adding on delete cascade for table build


Fixes: #822

---

diff --git a/frontend/coprs_frontend/alembic/schema/versions/3cba3ffe2836_on_delete_cascade_for_table_build.py b/frontend/coprs_frontend/alembic/schema/versions/3cba3ffe2836_on_delete_cascade_for_table_build.py
new file mode 100644
index 0000000..8a4a346
--- /dev/null
+++ b/frontend/coprs_frontend/alembic/schema/versions/3cba3ffe2836_on_delete_cascade_for_table_build.py
@@ -0,0 +1,24 @@
+"""
+on delete cascade for table build
+
+Revision ID: 3cba3ffe2836
+Revises: 55a07cb7bd68
+Create Date: 2019-08-05 10:36:41.354582
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+
+revision = '3cba3ffe2836'
+down_revision = '55a07cb7bd68'
+
+
+def upgrade():
+    op.drop_constraint('build_chroot_build_id_fkey', 'build_chroot', type_='foreignkey')
+    op.create_foreign_key('build_chroot_build_id_fkey', 'build_chroot', 'build', ['build_id'], ['id'], ondelete='CASCADE')
+
+
+def downgrade():
+    op.drop_constraint('build_chroot_build_id_fkey', 'build_chroot', type_='foreignkey')
+    op.create_foreign_key('build_chroot_build_id_fkey', 'build_chroot', 'build', ['build_id'], ['id'])
diff --git a/frontend/coprs_frontend/coprs/models.py b/frontend/coprs_frontend/coprs/models.py
index d9dfbdf..94dedcb 100644
--- a/frontend/coprs_frontend/coprs/models.py
+++ b/frontend/coprs_frontend/coprs/models.py
@@ -1302,9 +1302,10 @@ class BuildChroot(db.Model, helpers.Serializer):
     mock_chroot_id = db.Column(db.Integer, db.ForeignKey("mock_chroot.id"),
                                primary_key=True)
     mock_chroot = db.relationship("MockChroot", backref=db.backref("builds"))
-    build_id = db.Column(db.Integer, db.ForeignKey("build.id"),
+    build_id = db.Column(db.Integer, db.ForeignKey("build.id", ondelete="CASCADE"),
                          primary_key=True)
-    build = db.relationship("Build", backref=db.backref("build_chroots"))
+    build = db.relationship("Build", backref=db.backref("build_chroots", cascade="all, delete-orphan",
+                                                        passive_deletes=True))
     git_hash = db.Column(db.String(40))
     status = db.Column(db.Integer, default=StatusEnum("waiting"))