VehicleJourney: Allow deletion of associated company

If the state doesn't contain a company, that means it was deleted on the
frontend. In that case, the backend code should correctly delete the
associated company from the vehicle journey.

Refs #5574

2 files changed, 14 insertions, 2 deletions

diff --git a/app/models/chouette/vehicle_journey.rb b/app/models/chouette/vehicle_journey.rb
index 8a704d8c0..5cd87a66a 100644
--- a/app/models/chouette/vehicle_journey.rb
+++ b/app/models/chouette/vehicle_journey.rb
@@ -221,9 +221,13 @@ module Chouette
 
     def self.state_permited_attributes item
       attrs = item.slice('published_journey_identifier', 'published_journey_name', 'journey_pattern_id', 'company_id').to_hash
-      ['company', 'journey_pattern'].map do |association|
-        attrs["#{association}_id"] = item[association]['id'] if item[association]
+
+      if item['journey_pattern']
+        attrs['journey_pattern_id'] = item['journey_pattern']['id']
       end
+
+      attrs['company_id'] = item['company'] ? item['company']['id'] : nil
+
       attrs["custom_field_values"] = Hash[*(item["custom_fields"] || {}).map{|k, v| [k, v["value"]]}.flatten]
       attrs
     end
diff --git a/spec/models/chouette/vehicle_journey_spec.rb b/spec/models/chouette/vehicle_journey_spec.rb
index 2a88ac3ce..21bbc1ba8 100644
--- a/spec/models/chouette/vehicle_journey_spec.rb
+++ b/spec/models/chouette/vehicle_journey_spec.rb
@@ -231,6 +231,14 @@ describe Chouette::VehicleJourney, :type => :model do
       expect(vehicle_journey.reload.company_id).to eq state['company']['id']
     end
 
+    it "handles vehicle journey company deletion" do
+      vehicle_journey.update(company: create(:company))
+      state.delete('company')
+      Chouette::VehicleJourney.state_update(route, collection)
+
+      expect(vehicle_journey.reload.company_id).to be_nil
+    end
+
     it 'should update vj attributes from state' do
       state['published_journey_name']       = 'edited_name'
       state['published_journey_identifier'] = 'edited_identifier'