} ;
: insert-trigger ( -- string )
- [
"""
CREATE TRIGGER fki_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE INSERT ON ${table-name}
SELECT RAISE(ROLLBACK, 'insert on table "${table-name}" violates foreign key constraint "fki_${table-name}_$table-id}_${foreign-table-name}_${foreign-table-id}_id"')
WHERE (SELECT ${foreign-table-id} FROM ${foreign-table-name} WHERE ${foreign-table-id} = NEW.${table-id}) IS NULL;
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: insert-trigger-not-null ( -- string )
- [
"""
CREATE TRIGGER fki_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE INSERT ON ${table-name}
WHERE NEW.${table-id} IS NOT NULL
AND (SELECT ${foreign-table-id} FROM ${foreign-table-name} WHERE ${foreign-table-id} = NEW.${table-id}) IS NULL;
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: update-trigger ( -- string )
- [
"""
CREATE TRIGGER fku_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE UPDATE ON ${table-name}
SELECT RAISE(ROLLBACK, 'update on table "${table-name}" violates foreign key constraint "fku_${table-name}_$table-id}_${foreign-table-name}_${foreign-table-id}_id"')
WHERE (SELECT ${foreign-table-id} FROM ${foreign-table-name} WHERE ${foreign-table-id} = NEW.${table-id}) IS NULL;
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: update-trigger-not-null ( -- string )
- [
"""
CREATE TRIGGER fku_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE UPDATE ON ${table-name}
WHERE NEW.${table-id} IS NOT NULL
AND (SELECT ${foreign-table-id} FROM ${foreign-table-name} WHERE ${foreign-table-id} = NEW.${table-id}) IS NULL;
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: delete-trigger-restrict ( -- string )
- [
"""
CREATE TRIGGER fkd_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE DELETE ON ${foreign-table-name}
SELECT RAISE(ROLLBACK, 'delete on table "${foreign-table-name}" violates foreign key constraint "fkd_${table-name}_$table-id}_${foreign-table-name}_${foreign-table-id}_id"')
WHERE (SELECT ${foreign-table-id} FROM ${foreign-table-name} WHERE ${foreign-table-id} = OLD.${foreign-table-id}) IS NOT NULL;
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: delete-trigger-cascade ( -- string )
- [
"""
CREATE TRIGGER fkd_${table-name}_${table-id}_${foreign-table-name}_${foreign-table-id}_id
BEFORE DELETE ON ${foreign-table-name}
FOR EACH ROW BEGIN
DELETE from ${table-name} WHERE ${table-id} = OLD.${foreign-table-id};
END;
- """ interpolate
- ] with-string-writer ;
+ """ interpolate ;
: can-be-null? ( -- ? )
"sql-spec" get modifiers>> [ +not-null+ = ] any? not ;
can-be-null? [
insert-trigger sqlite-trigger,
update-trigger sqlite-trigger,
- ] [
+ ] [
insert-trigger-not-null sqlite-trigger,
update-trigger-not-null sqlite-trigger,
] if