SQLHelper: add SyncRelationStrings

database/sql_helper.go

@@ -71,3 +71,30 @@
 	}
 	return nil
 }
+
+// SyncRelationStrings ...
+func (h *SQLHelper) SyncRelationStrings(
+	table string, colFrom string, colTo string,
+	colFromValue string, colToValues []string,
+) error {
+	// Upsert ts les couples
+	q := sq.Insert(table).
+		Columns(colFrom, colTo)
+	for _, value := range colToValues {
+		q = q.Values(colFromValue, value)
+	}
+	q = q.Suffix("ON CONFLICT DO NOTHING")
+	if _, err := h.Exec(q); err != nil {
+		return err
+	}
+
+	filter := sq.And{sq.Eq{colFrom: colFromValue}}
+	for _, value := range colToValues {
+		filter = append(filter, sq.NotEq{colTo: value})
+	}
+	// Delete les valeurs non voulues
+	if _, err := h.Exec(sq.Delete(table).Where(filter)); err != nil {
+		return err
+	}
+	return nil
+}