[open-ils-commits] [GIT] Evergreen ILS branch master updated. b01a0ee3a8567dfcb8cd3392e9c1d14e8dc370ef

Evergreen Git git at git.evergreen-ils.org
Thu Aug 18 19:32:21 EDT 2011


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       via  2ee54e937ef54575ee9b74709ba609f4bde5f702 (commit)
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- Log -----------------------------------------------------------------
commit b01a0ee3a8567dfcb8cd3392e9c1d14e8dc370ef
Author: Dan Wells <dbw2 at calvin.edu>
Date:   Tue Aug 16 17:22:47 2011 -0400

    Stricter order for actor.org_unit_parent_protect()
    
    actor.org_unit_parent_protect() may not work due to the fact
    that 'IF' conditions in PL/pgSQL are not necessarily processed
    in the order written. This line:
    
    "IF TG_OP = 'INSERT' OR NEW.parent_ou
    IS DISTINCT FROM OLD.parent_ou THEN"
    
    may fail because the 'IS DISTINCT FROM' happens before the
    'INSERT' check, and and that fails because there is no 'OLD'
    variable for INSERTs.
    
    This commit may not be the optimal style for this circumstance
    in this language, but it works.  It also appears to change more
    than it really does due to a loss of one level of indentation in
    the structure.
    
    Signed-off-by: Dan Wells <dbw2 at calvin.edu>
    Signed-off-by: Dan Scott <dscott at laurentian.ca>

diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index e72e509..a08f61b 100644
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -86,7 +86,7 @@ CREATE TRIGGER no_overlapping_deps
     BEFORE INSERT OR UPDATE ON config.db_patch_dependencies
     FOR EACH ROW EXECUTE PROCEDURE evergreen.array_overlap_check ('deprecates');
 
-INSERT INTO config.upgrade_log (version, applied_to) VALUES ('0604', :eg_version); -- miker/dbs
+INSERT INTO config.upgrade_log (version, applied_to) VALUES ('0605', :eg_version); -- dbwells/dbs
 
 CREATE TABLE config.bib_source (
 	id		SERIAL	PRIMARY KEY,
diff --git a/Open-ILS/src/sql/Pg/005.schema.actors.sql b/Open-ILS/src/sql/Pg/005.schema.actors.sql
index 759d59a..7117157 100644
--- a/Open-ILS/src/sql/Pg/005.schema.actors.sql
+++ b/Open-ILS/src/sql/Pg/005.schema.actors.sql
@@ -297,23 +297,29 @@ CREATE OR REPLACE FUNCTION actor.org_unit_parent_protect () RETURNS TRIGGER AS $
 		current_aou := NEW;
 		depth_count := 0;
 		seen_ous := ARRAY[NEW.id];
-		IF TG_OP = 'INSERT' OR NEW.parent_ou IS DISTINCT FROM OLD.parent_ou THEN
-			LOOP
-				IF current_aou.parent_ou IS NULL THEN -- Top of the org tree?
-					RETURN NEW; -- No loop. Carry on.
-				END IF;
-				IF current_aou.parent_ou = ANY(seen_ous) THEN -- Parent is one we have seen?
-					RAISE 'OU LOOP: Saw % twice', current_aou.parent_ou; -- LOOP! ABORT!
-				END IF;
-				-- Get the next one!
-				SELECT INTO current_aou * FROM actor.org_unit WHERE id = current_aou.parent_ou;
-				seen_ous := seen_ous || current_aou.id;
-				depth_count := depth_count + 1;
-				IF depth_count = 100 THEN
-					RAISE 'OU CHECK TOO DEEP';
-				END IF;
-			END LOOP;
+
+		IF (TG_OP = 'UPDATE') THEN
+			IF (NEW.parent_ou IS NOT DISTINCT FROM OLD.parent_ou) THEN
+				RETURN NEW; -- Doing an UPDATE with no change, just return it
+			END IF;
 		END IF;
+
+		LOOP
+			IF current_aou.parent_ou IS NULL THEN -- Top of the org tree?
+				RETURN NEW; -- No loop. Carry on.
+			END IF;
+			IF current_aou.parent_ou = ANY(seen_ous) THEN -- Parent is one we have seen?
+				RAISE 'OU LOOP: Saw % twice', current_aou.parent_ou; -- LOOP! ABORT!
+			END IF;
+			-- Get the next one!
+			SELECT INTO current_aou * FROM actor.org_unit WHERE id = current_aou.parent_ou;
+			seen_ous := seen_ous || current_aou.id;
+			depth_count := depth_count + 1;
+			IF depth_count = 100 THEN
+				RAISE 'OU CHECK TOO DEEP';
+			END IF;
+		END LOOP;
+
 		RETURN NEW;
 	END;
 $$ LANGUAGE PLPGSQL;
diff --git a/Open-ILS/src/sql/Pg/upgrade/0605.schema.lp826844_org_unit_parent_protect_fix.sql b/Open-ILS/src/sql/Pg/upgrade/0605.schema.lp826844_org_unit_parent_protect_fix.sql
new file mode 100644
index 0000000..4a1f732
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0605.schema.lp826844_org_unit_parent_protect_fix.sql
@@ -0,0 +1,50 @@
+-- Evergreen DB patch XXXX.schema.lp826844_org_unit_parent_protect_fix.sql
+--
+-- Correct the fact that actor.org_unit_parent_protect() may not work
+-- due to 'IF' conditions in PL/pgSQL not necessarily processing in the
+-- order written
+--
+BEGIN;
+
+
+-- check whether patch can be applied
+SELECT evergreen.upgrade_deps_block_check('0605', :eg_version);
+
+CREATE OR REPLACE FUNCTION actor.org_unit_parent_protect () RETURNS TRIGGER AS $$
+	DECLARE
+		current_aou actor.org_unit%ROWTYPE;
+		seen_ous    INT[];
+		depth_count INT;
+	BEGIN
+		current_aou := NEW;
+		depth_count := 0;
+		seen_ous := ARRAY[NEW.id];
+
+		IF (TG_OP = 'UPDATE') THEN
+			IF (NEW.parent_ou IS NOT DISTINCT FROM OLD.parent_ou) THEN
+				RETURN NEW; -- Doing an UPDATE with no change, just return it
+			END IF;
+		END IF;
+
+		LOOP
+			IF current_aou.parent_ou IS NULL THEN -- Top of the org tree?
+				RETURN NEW; -- No loop. Carry on.
+			END IF;
+			IF current_aou.parent_ou = ANY(seen_ous) THEN -- Parent is one we have seen?
+				RAISE 'OU LOOP: Saw % twice', current_aou.parent_ou; -- LOOP! ABORT!
+			END IF;
+			-- Get the next one!
+			SELECT INTO current_aou * FROM actor.org_unit WHERE id = current_aou.parent_ou;
+			seen_ous := seen_ous || current_aou.id;
+			depth_count := depth_count + 1;
+			IF depth_count = 100 THEN
+				RAISE 'OU CHECK TOO DEEP';
+			END IF;
+		END LOOP;
+
+		RETURN NEW;
+	END;
+$$ LANGUAGE PLPGSQL;
+
+
+COMMIT;

commit 2ee54e937ef54575ee9b74709ba609f4bde5f702
Author: Dan Wells <dbw2 at calvin.edu>
Date:   Tue Aug 16 17:16:35 2011 -0400

    Whitespace Only Changes
    
    Files uses primarily tabs, function used both spaces and tabs.
    It now uses all tabs.
    
    Signed-off-by: Dan Wells <dbw2 at calvin.edu>
    Signed-off-by: Dan Scott <dscott at laurentian.ca>

diff --git a/Open-ILS/src/sql/Pg/005.schema.actors.sql b/Open-ILS/src/sql/Pg/005.schema.actors.sql
index 75b379e..759d59a 100644
--- a/Open-ILS/src/sql/Pg/005.schema.actors.sql
+++ b/Open-ILS/src/sql/Pg/005.schema.actors.sql
@@ -289,31 +289,31 @@ CREATE INDEX actor_org_unit_mailing_address_idx ON actor.org_unit (mailing_addre
 CREATE INDEX actor_org_unit_holds_address_idx ON actor.org_unit (holds_address);
 
 CREATE OR REPLACE FUNCTION actor.org_unit_parent_protect () RETURNS TRIGGER AS $$
-    DECLARE
-        current_aou actor.org_unit%ROWTYPE;
-        seen_ous    INT[];
-        depth_count INT;
+	DECLARE
+		current_aou actor.org_unit%ROWTYPE;
+		seen_ous    INT[];
+		depth_count INT;
 	BEGIN
-        current_aou := NEW;
-        depth_count := 0;
-        seen_ous := ARRAY[NEW.id];
-        IF TG_OP = 'INSERT' OR NEW.parent_ou IS DISTINCT FROM OLD.parent_ou THEN
-            LOOP
-                IF current_aou.parent_ou IS NULL THEN -- Top of the org tree?
-                    RETURN NEW; -- No loop. Carry on.
-                END IF;
-                IF current_aou.parent_ou = ANY(seen_ous) THEN -- Parent is one we have seen?
-                    RAISE 'OU LOOP: Saw % twice', current_aou.parent_ou; -- LOOP! ABORT!
-                END IF;
-                -- Get the next one!
-                SELECT INTO current_aou * FROM actor.org_unit WHERE id = current_aou.parent_ou;
-                seen_ous := seen_ous || current_aou.id;
-                depth_count := depth_count + 1;
-                IF depth_count = 100 THEN
-                    RAISE 'OU CHECK TOO DEEP';
-                END IF;
-            END LOOP;
-        END IF;
+		current_aou := NEW;
+		depth_count := 0;
+		seen_ous := ARRAY[NEW.id];
+		IF TG_OP = 'INSERT' OR NEW.parent_ou IS DISTINCT FROM OLD.parent_ou THEN
+			LOOP
+				IF current_aou.parent_ou IS NULL THEN -- Top of the org tree?
+					RETURN NEW; -- No loop. Carry on.
+				END IF;
+				IF current_aou.parent_ou = ANY(seen_ous) THEN -- Parent is one we have seen?
+					RAISE 'OU LOOP: Saw % twice', current_aou.parent_ou; -- LOOP! ABORT!
+				END IF;
+				-- Get the next one!
+				SELECT INTO current_aou * FROM actor.org_unit WHERE id = current_aou.parent_ou;
+				seen_ous := seen_ous || current_aou.id;
+				depth_count := depth_count + 1;
+				IF depth_count = 100 THEN
+					RAISE 'OU CHECK TOO DEEP';
+				END IF;
+			END LOOP;
+		END IF;
 		RETURN NEW;
 	END;
 $$ LANGUAGE PLPGSQL;

-----------------------------------------------------------------------

Summary of changes:
 Open-ILS/src/sql/Pg/002.schema.config.sql          |    2 +-
 Open-ILS/src/sql/Pg/005.schema.actors.sql          |   54 +++++++++++---------
 ...schema.lp826844_org_unit_parent_protect_fix.sql |   50 ++++++++++++++++++
 3 files changed, 81 insertions(+), 25 deletions(-)
 create mode 100644 Open-ILS/src/sql/Pg/upgrade/0605.schema.lp826844_org_unit_parent_protect_fix.sql


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