LP#1564079 Checkout history handles serials

Remove the target_copy foreign key constraint on action.usr_circ_history
so that it does not prevent creation of rows from circulation's that
link to serial.unit objects.  Similar to action.circulation, the foreign
key constraint is enforced via a evergreen.fake_fkey_tgr trigger
instead.

This modifies the 2.9.3-2.10.0-upgrade-db.sql and 0960 upgrade scripts,
since without this change, the scripts may fail.

A separate upgrade script is added to drop the constraint for those who
have already successfully run the the 2.9.3-2.10.0-upgrade-db.sql script
(i.e. those who don't use serials).  For simplicity, the
evergreen.fake_fkey_tgr trigger is only applied in this separate upgrade
script (in addition to the base schema, of course).

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Kathy Lussier <klussier@masslnc.org>
Conflicts:
	Open-ILS/src/sql/Pg/version-upgrade/2.9.3-2.10.0-upgrade-db.sql

diff --git a/Open-ILS/src/sql/Pg/upgrade/0960.schema.decouple_co_history.sql b/Open-ILS/src/sql/Pg/upgrade/0960.schema.decouple_co_history.sql
index 5fc0fed..59e13b7 100644 (file)
--- a/Open-ILS/src/sql/Pg/upgrade/0960.schema.decouple_co_history.sql
+++ b/Open-ILS/src/sql/Pg/upgrade/0960.schema.decouple_co_history.sql
@@ -11,8 +11,7 @@ CREATE TABLE action.usr_circ_history (
     usr          INTEGER NOT NULL REFERENCES actor.usr(id)
                  DEFERRABLE INITIALLY DEFERRED,
     xact_start   TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
-    target_copy  BIGINT NOT NULL REFERENCES asset.copy(id)
-                 DEFERRABLE INITIALLY DEFERRED,
+    target_copy  BIGINT NOT NULL,
     due_date     TIMESTAMP WITH TIME ZONE NOT NULL,
     checkin_time TIMESTAMP WITH TIME ZONE,
     source_circ  BIGINT REFERENCES action.circulation(id)

diff --git a/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.fix_circ_history_copy_ref.sql b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.fix_circ_history_copy_ref.sql
new file mode 100644 (file)
index 0000000..2acd1dd
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.fix_circ_history_copy_ref.sql
@@ -0,0 +1,14 @@
+
+BEGIN;
+
+--SELECT evergreen.upgrade_deps_block_check('XXXX', :eg_version);
+
+ALTER TABLE action.usr_circ_history 
+    DROP CONSTRAINT IF EXISTS usr_circ_history_target_copy_fkey;
+
+CREATE TRIGGER action_usr_circ_history_target_copy_trig 
+    AFTER INSERT OR UPDATE ON action.usr_circ_history 
+    FOR EACH ROW EXECUTE PROCEDURE evergreen.fake_fkey_tgr('target_copy');
+
+COMMIT;
+