From 2edbe8cc53a9050283963650b4d1a5b0c5994243 Mon Sep 17 00:00:00 2001
From: miker <miker@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Mon, 13 Sep 2010 17:26:03 +0000
Subject: [PATCH] we need to move permissions around for a Great Renumbering,
 but i18n is not protected by fkeys.  this provides infratructure for
 maintaining i18n values that already exist in a db, and an example usage on
 permission.perm_list

git-svn-id: svn://svn.open-ils.org/ILS/trunk@17634 dcc99617-32d9-48b4-a31d-7c20da2025e4
---
 Open-ILS/src/sql/Pg/002.schema.config.sql          | 30 ++++++++++++++++-
 Open-ILS/src/sql/Pg/006.schema.permissions.sql     |  3 ++
 .../0393.schema.perm-id-change-i18n-protection.sql | 38 ++++++++++++++++++++++
 3 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 Open-ILS/src/sql/Pg/upgrade/0393.schema.perm-id-change-i18n-protection.sql

diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index 5c2e08588..a376efc58 100644
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -68,7 +68,7 @@ CREATE TABLE config.upgrade_log (
     install_date    TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
 );
 
-INSERT INTO config.upgrade_log (version) VALUES ('0392'); -- phasefx
+INSERT INTO config.upgrade_log (version) VALUES ('0393'); -- miker
 
 CREATE TABLE config.bib_source (
 	id		SERIAL	PRIMARY KEY,
@@ -647,6 +647,34 @@ CREATE TABLE config.i18n_core (
 
 CREATE UNIQUE INDEX i18n_identity ON config.i18n_core (fq_field,identity_value,translation);
 
+CREATE OR REPLACE FUNCTION oils_i18n_update_apply(old_ident TEXT, new_ident TEXT, hint TEXT) RETURNS VOID AS $_$
+BEGIN
+
+    EXECUTE $$
+        UPDATE  config.i18n_core
+          SET   identity_value = $$ || quote_literal(new_ident) || $$ 
+          WHERE fq_field LIKE '$$ || hint || $$.%' 
+                AND identity_value = $$ || quote_literal(old_ident) || $$::TEXT;$$;
+
+    RETURN;
+
+END;
+$_$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION oils_i18n_id_tracking(/* hint */) RETURNS TRIGGER AS $_$
+BEGIN
+    PERFORM oils_i18n_update_apply( OLD.id::TEXT, NEW.id::TEXT, TG_ARGV[0]::TEXT );
+    RETURN NEW;
+END;
+$_$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION oils_i18n_code_tracking(/* hint */) RETURNS TRIGGER AS $_$
+BEGIN
+    PERFORM oils_i18n_update_apply( OLD.code::TEXT, NEW.code::TEXT, TG_ARGV[0]::TEXT );
+    RETURN NEW;
+END;
+$_$ LANGUAGE PLPGSQL;
+
 CREATE TABLE config.billing_type (
     id              SERIAL  PRIMARY KEY,
     name            TEXT    NOT NULL,
diff --git a/Open-ILS/src/sql/Pg/006.schema.permissions.sql b/Open-ILS/src/sql/Pg/006.schema.permissions.sql
index e870cfe44..c734d94c6 100644
--- a/Open-ILS/src/sql/Pg/006.schema.permissions.sql
+++ b/Open-ILS/src/sql/Pg/006.schema.permissions.sql
@@ -27,6 +27,9 @@ CREATE TABLE permission.perm_list (
 	description	TEXT
 );
 CREATE INDEX perm_list_code_idx ON permission.perm_list (code);
+CREATE TRIGGER maintain_perm_i18n_tgr
+    AFTER UPDATE ON permission.perm_list
+    FOR EACH ROW EXECUTE PROCEDURE oils_i18n_id_tracking('ppl');
 
 CREATE TABLE permission.grp_tree (
 	id			SERIAL	PRIMARY KEY,
diff --git a/Open-ILS/src/sql/Pg/upgrade/0393.schema.perm-id-change-i18n-protection.sql b/Open-ILS/src/sql/Pg/upgrade/0393.schema.perm-id-change-i18n-protection.sql
new file mode 100644
index 000000000..06ac6482d
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0393.schema.perm-id-change-i18n-protection.sql
@@ -0,0 +1,38 @@
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0393'); -- miker
+
+CREATE OR REPLACE FUNCTION oils_i18n_update_apply(old_ident TEXT, new_ident TEXT, hint TEXT) RETURNS VOID AS $_$
+BEGIN
+
+    EXECUTE $$
+        UPDATE  config.i18n_core
+          SET   identity_value = $$ || new_ident || $$ 
+          WHERE fq_field LIKE '$$ || hint || $$.%' 
+                AND identity_value = $$ || old_ident || $$;$$;
+
+    RETURN;
+
+END;
+$_$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION oils_i18n_id_tracking(/* hint */) RETURNS TRIGGER AS $_$
+BEGIN
+    PERFORM oils_i18n_update_apply( OLD.id::TEXT, NEW.id::TEXT, TG_ARGV[0]::TEXT );
+    RETURN NEW;
+END;
+$_$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION oils_i18n_code_tracking(/* hint */) RETURNS TRIGGER AS $_$
+BEGIN
+    PERFORM oils_i18n_update_apply( OLD.code::TEXT, NEW.code::TEXT, TG_ARGV[0]::TEXT );
+    RETURN NEW;
+END;
+$_$ LANGUAGE PLPGSQL;
+
+
+CREATE TRIGGER maintain_perm_i18n_tgr
+    AFTER UPDATE ON permission.perm_list
+    FOR EACH ROW EXECUTE PROCEDURE oils_i18n_tracking('ppl', 'id');
+
+COMMIT;
-- 
2.11.0