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Add hook and test for add column, add wiki reference in README

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This commit is contained in:
Sandro Santilli 2013-10-22 17:11:02 +02:00
parent 938669387c
commit cbda4518f7
3 changed files with 13 additions and 17 deletions
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2
README.md
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@ -3,6 +3,8 @@ cartodb-postgresql
PostgreSQL extension for CartoDB
See https://github.com/CartoDB/cartodb/wiki/CartoDB-PostgreSQL-extension
Depdenencies
------------

26
cartodb_hooks.sql
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@ -17,11 +17,10 @@ BEGIN
-- We're only interested in real relations
IF (event_info.new).relkind != 'r' THEN RETURN; END IF;
RAISE NOTICE 'Relation % of kind % created in namespace oid %',
RAISE DEBUG 'Relation % of kind % created in namespace oid %',
event_info.relation, (event_info.new).relkind, (event_info.new).relnamespace;
-- We don't want to react to alters triggered by superuser,
-- or we'd enter an infinite loop here
IF current_setting('is_superuser') = 'on' THEN
RAISE DEBUG 'no ddl trigger for superuser';
RETURN;
@ -45,14 +44,13 @@ BEGIN
SELECT oid,* FROM pg_class WHERE oid = event_info.relation INTO rel;
RAISE NOTICE 'Column % altered by % (superuser? %) in relation % of kind %',
RAISE DEBUG 'Column % altered by % (superuser? %) in relation % of kind %',
(event_info.old).attname, current_user, current_setting('is_superuser'), event_info.relation::regclass, rel.relkind;
-- We're only interested in real relations
IF rel.relkind != 'r' THEN RETURN; END IF;
-- We don't want to react to alters triggered by superuser,
-- or we'd enter an infinite loop here
IF current_setting('is_superuser') = 'on' THEN
RAISE DEBUG 'no ddl trigger for superuser';
RETURN;
@ -64,7 +62,7 @@ BEGIN
PERFORM cdb_enable_ddl_hooks();
-- TODO: invalidate varnish ?
-- TODO: invalidate varnish
END; $$;
-- }
@ -81,14 +79,13 @@ BEGIN
SELECT oid,* FROM pg_class WHERE oid = event_info.relation INTO rel;
RAISE NOTICE 'Column % drop by % (superuser? %) in relation % of kind %',
RAISE DEBUG 'Column % drop by % (superuser? %) in relation % of kind %',
(event_info.old).attname, current_user, current_setting('is_superuser'), event_info.relation::regclass, rel.relkind;
-- We're only interested in real relations
IF rel.relkind != 'r' THEN RETURN; END IF;
-- We don't want to react to drops triggered by superuser,
-- or we'd enter an infinite loop here
IF current_setting('is_superuser') = 'on' THEN
RAISE DEBUG 'no ddl trigger for superuser';
RETURN;
@ -100,7 +97,7 @@ BEGIN
PERFORM cdb_enable_ddl_hooks();
-- TODO: invalidate varnish ?
-- TODO: invalidate varnish
END; $$;
-- }
@ -117,24 +114,19 @@ BEGIN
SELECT oid,* FROM pg_class WHERE oid = event_info.relation INTO rel;
RAISE NOTICE 'Column % add by % (superuser? %) in relation % of kind %',
(event_info.old).attname, current_user, current_setting('is_superuser'), event_info.relation::regclass, rel.relkind;
RAISE DEBUG 'Column % added by % (superuser? %) in relation % of kind %',
(event_info.new).attname, current_user, current_setting('is_superuser'), event_info.relation::regclass, rel.relkind;
-- We're only interested in real relations
IF rel.relkind != 'r' THEN RETURN; END IF;
-- We don't want to react to drops triggered by superuser,
-- or we'd enter an infinite loop here
IF current_setting('is_superuser') = 'on' THEN
RAISE DEBUG 'no ddl trigger for superuser';
RETURN;
END IF;
--PERFORM cdb_disable_ddl_hooks();
--PERFORM public.CDB_CartodbfyTable(event_info.relation);
--PERFORM cdb_enable_ddl_hooks();
-- TODO: invalidate varnish ?
-- TODO: invalidate varnish
END; $$;
-- }
@ -151,7 +143,7 @@ CREATE OR REPLACE FUNCTION cdb_enable_ddl_hooks() returns void AS $$
CREATE EVENT TRIGGER cdb_on_relation_create ON "relation_create" EXECUTE PROCEDURE cdb_handle_create_table();
CREATE EVENT TRIGGER cdb_on_alter_column ON "column_alter" EXECUTE PROCEDURE cdb_handle_alter_column();
CREATE EVENT TRIGGER cdb_on_drop_column ON "column_drop" EXECUTE PROCEDURE cdb_handle_drop_column();
CREATE EVENT TRIGGER cdb_on_add_column ON "column_drop" EXECUTE PROCEDURE cdb_handle_add_column();
CREATE EVENT TRIGGER cdb_on_add_column ON "column_add" EXECUTE PROCEDURE cdb_handle_add_column();
$$ LANGUAGE sql;
SELECT cdb_enable_ddl_hooks();

2
hook_on_table_create.sql
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@ -16,4 +16,6 @@ alter table c.t3 rename column the_geom_webmercator to webmerc2;
select * from c.t3;
alter table c.t3 drop column the_geom_webmercator;
select * from c.t3;
alter table c.t3 add column id2 int;
select * from c.t3;
drop schema c cascade;