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feature #3: link table constitution and article

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This commit is contained in:
Fabrice Lecomte
2019-07-25 19:21:43 +02:00
parent 5d6f9e613c
commit 8c05072907
2 changed files with 56 additions and 14 deletions
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52
resources/sql/migrations/0000-init.up.sql
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@@ -16,7 +16,7 @@ $$;
create table article
(
id uuid default uuid_generate_v4() not null,
id uuid default uuid_generate_v4() not null primary key,
created_at timestamptz default now() not null,
version_id uuid default uuid_generate_v4() not null,
version_number int not null,
@@ -34,15 +34,51 @@ EXECUTE PROCEDURE set_version_number();
create table constitution
(
id uuid default uuid_generate_v4() not null,
created_at timestamptz default now() not null,
version_id uuid default uuid_generate_v4() not null,
version_number int not null,
title text not null,
annonymous boolean default false not null
id uuid default uuid_generate_v4() not null primary key,
created_at timestamptz default now() not null,
version_id uuid default uuid_generate_v4() not null,
version_number int not null,
title text not null,
annonymous boolean default false not null
);
CREATE TRIGGER generate_version_number_trigger
BEFORE INSERT
ON constitution
EXECUTE PROCEDURE set_version_number();
EXECUTE PROCEDURE set_version_number();
create table title
(
id uuid default uuid_generate_v4() not null primary key,
created_at timestamptz default now() not null,
name text not null,
rank int not null,
constitution_id uuid not null references constitution (id)
);
create table article_in_title
(
id uuid default uuid_generate_v4() not null primary key,
created_at timestamptz default now() not null,
rank int not null,
title_id uuid not null references title (id),
article_id uuid not null references article (id),
constitution_id uuid not null references constitution (id)
);
create or replace function set_constitution_link() returns trigger
language plpgsql as
$$
begin
new.constitution_id = (
select t.constitution_id
from title as t
where t.id = new.title_id
);
end;
$$;
CREATE TRIGGER set_constitution_link_trigger
BEFORE INSERT
ON article_in_title
EXECUTE PROCEDURE set_constitution_link();