blob: f8d01c78ae88e3040b2b8661eb5054fa5b4e24ed (
plain)
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
# frozen_string_literal: true
module Gitlab
module Database
module SchemaHelpers
def create_trigger_function(name, replace: true)
replace_clause = optional_clause(replace, "OR REPLACE")
execute(<<~SQL)
CREATE #{replace_clause} FUNCTION #{name}()
RETURNS TRIGGER AS
$$
BEGIN
#{yield}
END
$$ LANGUAGE PLPGSQL
SQL
end
def create_function_trigger(name, fn_name, fires: nil)
execute(<<~SQL)
CREATE TRIGGER #{name}
#{fires}
FOR EACH ROW
EXECUTE PROCEDURE #{fn_name}()
SQL
end
def drop_function(name, if_exists: true)
exists_clause = optional_clause(if_exists, "IF EXISTS")
execute("DROP FUNCTION #{exists_clause} #{name}()")
end
def drop_trigger(table_name, name, if_exists: true)
exists_clause = optional_clause(if_exists, "IF EXISTS")
execute("DROP TRIGGER #{exists_clause} #{name} ON #{table_name}")
end
def object_name(table, type)
identifier = "#{table}_#{type}"
hashed_identifier = Digest::SHA256.hexdigest(identifier).first(10)
"#{type}_#{hashed_identifier}"
end
private
def optional_clause(flag, clause)
flag ? clause : ""
end
end
end
end
|
