diff options
Diffstat (limited to 'sql')
| -rw-r--r-- | sql/fileshare.sql | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/sql/fileshare.sql b/sql/fileshare.sql index 8e69881..b0c28a5 100644 --- a/sql/fileshare.sql +++ b/sql/fileshare.sql @@ -2,6 +2,8 @@ drop table if exists node_access; drop table if exists users; drop table if exists node_links; +drop table if exists trash; +drop trigger if exists delete_on_zero_links; drop table if exists nodes; @@ -42,9 +44,29 @@ create table node_links ( node_id int not null, name varchar(100) not null default 'no name', note varchar(200) not null default "", - check (directory_id != node_id), foreign key (directory_id) references nodes(node_id) on delete cascade, foreign key (node_id) references nodes(node_id) on delete cascade ); +create table trash ( + node_id int not null, + foreign key (node_id) references nodes(node_id) on delete cascade +); + +create trigger delete_on_zero_links + after delete + on node_links + for each row + insert into trash + select nodes.node_id + from nodes + where nodes.node_id not in (select node_id from node_links) and nodes.node_id=old.node_id; + + /* +create trigger delete_links + after delete + on nodes + for each row + delete from + */ |