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-rw-r--r--lib/sql/migration/005-bundle-patch-ordering.sql32
1 files changed, 25 insertions, 7 deletions
diff --git a/lib/sql/migration/005-bundle-patch-ordering.sql b/lib/sql/migration/005-bundle-patch-ordering.sql
index 1491aa8..238e37b 100644
--- a/lib/sql/migration/005-bundle-patch-ordering.sql
+++ b/lib/sql/migration/005-bundle-patch-ordering.sql
@@ -1,14 +1,32 @@
BEGIN;
-ALTER TABLE patchwork_bundle_patches RENAME TO patchwork_bundlepatch;
-CREATE SEQUENCE bundlepatch_tmp_seq;
+CREATE TABLE "patchwork_bundlepatch" (
+ "id" SERIAL NOT NULL PRIMARY KEY,
+ "patch_id" INTEGER NOT NULL
+ REFERENCES "patchwork_patch" ("id") DEFERRABLE INITIALLY DEFERRED,
+ "bundle_id" INTEGER NOT NULL
+ REFERENCES "patchwork_bundle" ("id") DEFERRABLE INITIALLY DEFERRED,
+ "order" SERIAL NOT NULL,
+ UNIQUE ("bundle_id", "patch_id")
+);
+-- we 'INSERT INTO ... SELECT' (rather than renaming and adding the order
+-- column) here so that we can order by date
+INSERT INTO patchwork_bundlepatch (id, patch_id, bundle_id)
+ SELECT patchwork_bundle_patches.id, patch_id, bundle_id
+ FROM patchwork_bundle_patches
+ INNER JOIN patchwork_patch
+ ON patchwork_patch.id = patchwork_bundle_patches.patch_id
+ ORDER BY bundle_id, patchwork_patch.date;
+COMMIT;
+
+BEGIN;
ALTER TABLE patchwork_bundlepatch
- ADD COLUMN "order" INTEGER NOT NULL
- DEFAULT nextval('bundlepatch_tmp_seq');
-ALTER TABLE patchwork_bundlepatch ALTER COLUMN "order" DROP DEFAULT;
-DROP SEQUENCE bundlepatch_tmp_seq;
-ALTER TABLE patchwork_bundlepatch ADD UNIQUE("bundle_id", "order");
+ ALTER COLUMN "order" TYPE INTEGER;
+
+-- normalise ordering: order should start with 1 in each bundle
UPDATE patchwork_bundlepatch SET "order" = 1 + "order" -
(SELECT min("order") FROM patchwork_bundlepatch AS p2
WHERE p2.bundle_id = patchwork_bundlepatch.bundle_id);
+
+SELECT * FROM patchwork_bundlepatch;
COMMIT;