1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
-- Deploy node_insert_ignore
-- requires: nodes
-- requires: goiardi_schema
BEGIN;
CREATE OR REPLACE FUNCTION goiardi.merge_nodes(m_name text, m_chef_environment text, m_run_list bytea, m_automatic_attr bytea, m_normal_attr bytea, m_default_attr bytea, m_override_attr bytea) RETURNS VOID AS
$$
BEGIN
LOOP
-- first try to update the key
UPDATE goiardi.nodes SET chef_environment = m_chef_environment, run_list = m_run_list, automatic_attr = m_automatic_attr, normal_attr = m_normal_attr, default_attr = m_default_attr, override_attr = m_override_attr, updated_at = NOW() WHERE name = m_name;
IF found THEN
RETURN;
END IF;
-- not there, so try to insert the key
-- if someone else inserts the same key concurrently,
-- we could get a unique-key failure
BEGIN
INSERT INTO goiardi.nodes (name, chef_environment, run_list, automatic_attr, normal_attr, default_attr, override_attr, created_at, updated_at) VALUES (m_name, m_chef_environment, m_run_list, m_automatic_attr, m_normal_attr, m_default_attr, m_override_attr, NOW(), NOW());
RETURN;
EXCEPTION WHEN unique_violation THEN
-- Do nothing, and loop to try the UPDATE again.
END;
END LOOP;
END;
$$
LANGUAGE plpgsql;
COMMIT;
|
