[TAN-423] blank end_at fix for idea.rb

back/app/models/idea.rb

@@ -183,7 +183,7 @@ def input_term
     else
       now = Time.zone.now
       phases_with_ideas = phases.select(&:can_contain_ideas?).sort_by(&:start_at)
-      first_past_phase_with_ideas = phases_with_ideas.reverse_each.detect { |phase| phase.end_at <= now }
+      first_past_phase_with_ideas = phases_with_ideas.reverse_each.detect { |phase| phase.end_at&.<= now }
       if first_past_phase_with_ideas
         first_past_phase_with_ideas.input_term
       else # now is before the first phase with ideas

back/spec/models/idea_spec.rb

@@ -185,6 +185,28 @@
         end
       end
 
+      context 'when the current ideation phase has no end date' do
+        let(:project) { create(:project_with_two_past_ideation_phases) }
+        let(:phase) { project.phases.last }
+        let(:idea) { build(:idea, project: project, phases: project.phases) }
+
+        it 'returns the input_term of the open ended (current) ideation phase' do
+          phase.update!(input_term: 'issue')
+          expect(idea.input_term).to eq 'issue'
+        end
+      end
+
+      context 'when a future ideation phase has no end date' do
+        let(:project) { create(:project_with_past_ideation_and_future_ideation_phase) }
+        let(:idea) { build(:idea, project: project, phases: project.phases) }
+
+        it 'returns the input_term of the past ideation phase' do
+          project.phases.last.update!(end_at: nil, input_term: 'option')
+          project.phases.first.update!(input_term: 'issue')
+          expect(idea.input_term).to eq 'issue'
+        end
+      end
+
       context 'when there is no active ideation or budgeting phase' do
         context 'when the idea does not belong to any phase' do
           # The project and the phase are given an input_term to describe that they