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;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
;;;
;;; This program is free software: you can redistribute it and/or
;;; modify it under the terms of the GNU Affero General Public License
;;; as published by the Free Software Foundation, either version 3 of
;;; the License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the GNU Affero General Public
;;; License along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(define-module (guix-data-service model location)
#:use-module (ice-9 match)
#:use-module (guix utils)
#:use-module (squee)
#:export (location->location-id))
(define select-existing-location
(string-append
"SELECT id "
"FROM locations "
"WHERE file = $1 AND line = $2 AND column_number = $3"))
(define insert-location
(string-append
"INSERT INTO locations "
"(file, line, column_number) VALUES "
"($1, $2, $3) "
"RETURNING id"))
(define (location->location-id conn location)
(match location
(($ <location> file line column)
(match (exec-query conn
select-existing-location
(list file
(number->string line)
(number->string column)))
(((id)) id)
(()
(caar
(exec-query conn
insert-location
(list file
(number->string line)
(number->string column)))))))))
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