Manage not found on connection edit

app/controllers/connections_controller.rb

@@ -62,20 +62,25 @@ def update
     authorize!
 
     from_port = Port.find(params[:connection][:from_port_id])
-    to_port = Port.find(params[:connection][:to_port_id])
-
-    from_port.connect_to_port(to_port,
-                              params[:connection][:cablename],
-                              params[:connection][:color],
-                              params[:connection][:vlans],
-                              params[:connection][:special_case],
-                              params[:connection][:comments])
+    to_port_id = params[:connection][:to_port_id]
+
+    if to_port_id.present?
+      to_port = Port.find(to_port_id)
+      @to_server = to_port.server
+
+      from_port.connect_to_port(to_port,
+                                params[:connection][:cablename],
+                                params[:connection][:color],
+                                params[:connection][:vlans],
+                                params[:connection][:special_case],
+                                params[:connection][:comments])
+    else
+      from_port.update(vlans: params[:connection][:vlans])
+    end
 
     @from_server = from_port.server
     @from_pdu = from_port.circuit&.record unless @from_server
 
-    @to_server = to_port.server
-
     respond_to do |format|
       format.html do
         redirect_to connections_edit_path(from_port_id: from_port.id), notice: t(".flashes.updated")

spec/requests/connections_controller_request_spec.rb

@@ -107,17 +107,12 @@
       end
     end
 
-    # context "without attributes" do
-    #   let(:params) { { connection: {} } }
+    context "without to_port_id" do
+      let(:params) { { connection: { from_port_id: "1" } } }
+      let(:records) { [connections(:one), cables(:one), connections(:two)] }
 
-    #   it { expect { response }.to raise_error(ActionController::ParameterMissing) }
-    # end
-
-    # context "without parameters" do
-    #   let(:params) { {} }
-
-    #   it { expect { response }.to raise_error(ActionController::ParameterMissing) }
-    # end
+      it { expect(response).to have_http_status(:redirect) }
+    end
 
     context "with invalid parameters" do
       let(:params) { { connection: invalid_attributes } }