3 files changed, 36 insertions, 2 deletions
diff --git a/app/controllers/lines_controller.rb b/app/controllers/lines_controller.rb
index ae8c9ed0c..cd8091252 100644
--- a/app/controllers/lines_controller.rb
+++ b/app/controllers/lines_controller.rb
@@ -122,7 +122,7 @@ class LinesController < ChouetteController
   end
 
   def line_params
-    params.require(:line).permit(
+    out = params.require(:line).permit(
       :transport_mode,
       :network_id,
       :company_id,
@@ -148,6 +148,8 @@ class LinesController < ChouetteController
       :secondary_company_ids => [],
       footnotes_attributes: [:code, :label, :_destroy, :id]
     )
+    out[:secondary_company_ids] = (out[:secondary_company_ids] || []).select(&:present?)
+    out
   end
 
    # Fake ransack filter
diff --git a/db/migrate/20180413082929_clean_lines_secondary_companies.rb b/db/migrate/20180413082929_clean_lines_secondary_companies.rb
new file mode 100644
index 000000000..4c5659e8f
--- /dev/null
+++ b/db/migrate/20180413082929_clean_lines_secondary_companies.rb
@@ -0,0 +1,5 @@
+class CleanLinesSecondaryCompanies < ActiveRecord::Migration
+  def up
+    Chouette::Line.where("secondary_company_ids = '{NULL}'").update_all secondary_company_ids: nil
+  end
+end
diff --git a/spec/controllers/lines_controller_spec.rb b/spec/controllers/lines_controller_spec.rb
index 96f49bb36..78020484b 100644
--- a/spec/controllers/lines_controller_spec.rb
+++ b/spec/controllers/lines_controller_spec.rb
@@ -1,9 +1,36 @@
 RSpec.describe LinesController, :type => :controller do
   login_user
 
-  let(:line_referential) { create :line_referential, member: @user.organisation }
+  let(:line_referential) { create :line_referential, member: @user.organisation, objectid_format: :netex }
   let(:line) { create :line, line_referential: line_referential }
 
+  describe 'POST create' do
+    let(:line_attrs){{
+      name: "test",
+      transport_mode: "bus"
+    }}
+    let(:request){ post :create, line_referential_id: line_referential.id, line: line_attrs }
+
+    with_permission "lines.create" do
+      it "should create a new line" do
+        expect{request}.to change{ line_referential.lines.count }.by 1
+      end
+
+      context "with an empty value in secondary_company_ids" do
+        let(:line_attrs){{
+          name: "test",
+          transport_mode: "bus",
+          secondary_company_ids: [""]
+        }}
+
+        it "should cleanup secondary_company_ids" do
+          expect{request}.to change{ line_referential.lines.count }.by 1
+          expect(line_referential.lines.last.secondary_company_ids).to eq []
+        end
+      end
+    end
+  end
+
   describe 'PUT deactivate' do
     let(:request){ put :deactivate, id: line.id, line_referential_id: line_referential.id }