NetexImport: Don't destroy non-existent Referentials
Created by: teddywing
Luc discovered this error in my method that destroys associated
non-ready Referentials:
> WorkbenchImport.destroy_all
WorkbenchImport Load (3.0ms) SELECT "public"."imports".* FROM "public"."imports" WHERE "public"."imports"."type" IN ('WorkbenchImport')
(1.5ms) BEGIN
ImportMessage Load (2.7ms) SELECT "public"."import_messages".* FROM "public"."import_messages" WHERE "public"."import_messages"."import_id" = $1 [["import_id", 58]]
ImportResource Load (1.9ms) SELECT "public"."import_resources".* FROM "public"."import_resources" WHERE "public"."import_resources"."import_id" = $1 [["import_id", 58]]
Import Load (0.3ms) SELECT "public"."imports".* FROM "public"."imports" WHERE "public"."imports"."parent_id" = $1 [["parent_id", 58]]
ImportMessage Load (0.5ms) SELECT "public"."import_messages".* FROM "public"."import_messages" WHERE "public"."import_messages"."import_id" = $1 [["import_id", 59]]
ImportResource Load (4.8ms) SELECT "public"."import_resources".* FROM "public"."import_resources" WHERE "public"."import_resources"."import_id" = $1 [["import_id", 59]]
SQL (1.3ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 636]]
SQL (0.3ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 635]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 634]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 633]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 632]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 631]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 630]]
SQL (0.1ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 629]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 628]]
SQL (0.1ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 627]]
SQL (0.1ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 626]]
SQL (0.3ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 625]]
SQL (0.3ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 624]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 623]]
SQL (0.2ms) DELETE FROM "public"."import_resources" WHERE "public"."import_resources"."id" = $1 [["id", 622]]
Import Load (0.3ms) SELECT "public"."imports".* FROM "public"."imports" WHERE "public"."imports"."parent_id" = $1 [["parent_id", 59]]
Referential Load (0.6ms) SELECT "public"."referentials".* FROM "public"."referentials" WHERE "public"."referentials"."id" = $1 LIMIT 1 [["id", 18]]
(0.2ms) ROLLBACK
NoMethodError: undefined method `ready' for nil:NilClass
from .../stif-boiv/app/models/netex_import.rb:20:in `destroy_non_ready_referential'Since referential is not a required attribute, it can be nil. That was
causing this to break because I tried to destroy a Referential that
doesn't exist. Check that there's an associated Referential before
trying to destroy it.
Refs #4991