prevent submitting form without selected files

app/assets/javascripts/channels/broadcasts.coffee

@@ -8,11 +8,16 @@ $(document).on "turbolinks:load", ->
       # Called when the subscription has been terminated by the server
 
     received: (data) ->
-      return unless document.querySelector("meta[name=broadcast-token][content='#{broadcastToken}']")
       switch data.event
-        when "broadcast_stream_update" then @refreshBroadcastVideo(data)
-        when "stream_recording_ready" then @showBroadcastRecordings(data)
-        when "file_upload_update" then @refreshBroadcastFilesTab(data)
+        when "broadcast_stream_update"
+          return unless document.querySelector("meta[name=broadcast-token][current=true][content='#{broadcastToken}']")
+          @refreshBroadcastVideo(data)
+        when "stream_recording_ready"
+          return unless document.querySelector("meta[name=broadcast-token][current=true][content='#{broadcastToken}']")
+          @showBroadcastRecordings(data)
+        when "file_upload_update"
+          return unless document.querySelector("meta[name=broadcast-token][content='#{broadcastToken}']")
+          @refreshBroadcastFilesTab(data)
 
     refreshBroadcastVideo: (data) ->
       $("#broadcast_updates").html data.status_content

app/controllers/api/direct_uploads_controller.rb

@@ -3,15 +3,25 @@
 class Api::DirectUploadsController < Api::ApiController
   include ActiveStorage::SetCurrent
 
+  deserializable_resource :direct_upload, only: [:create]
+
   def create
-    blob = ActiveStorage::Blob.create_before_direct_upload!(blob_args)
+    blob = ActiveStorage::Blob.create_before_direct_upload!(blob_params)
     render jsonapi: DirectUpload.new(blob)
   end
 
   private
 
-  def blob_args
-    params.require(:blob).permit(:filename, :byte_size, :checksum, :content_type, :metadata).to_h.symbolize_keys
+  def blob_params
+    params.
+      require(:direct_upload).
+      permit(:type, :filename, :byte_size, :checksum, :content_type, :metadata).
+      except(:type).
+      to_h.symbolize_keys
+  end
+
+  class DeserializableDirectUpload < JSONAPI::Deserializable::Resource
+    attributes :filename, :byte_size, :checksum, :content_type, :metadata
   end
 
   class SerializableDirectUpload < JSONAPI::Serializable::Resource

app/models/headshot_collection.rb

@@ -23,7 +23,7 @@ class HeadshotCollection
       collection_uid: collection_uid.to_s,
       bucket_name: aws_bucket_name,
       ids_to_images: map_ids_to_images,
-    }.reject { |_, v| v.blank? }
+    }.reject { |k, v| v.blank? && k != :ids_to_images }
   end
 
   private

app/views/broadcasts/_file_form.html.erb

@@ -1,4 +1,4 @@
 <%= bootstrap_form_for model, layout: :inline, remote: true do |form| %>
-  <%= form.file_field :files, direct_upload: true, multiple: true, accept: "*", hide_label: true, wrapper_class: "w-65 mr-2", id: "broadcast_files_#{token}" %>
+  <%= form.file_field :files, direct_upload: true, multiple: true, accept: "*", hide_label: true, required: true, wrapper_class: "w-65 mr-2", id: "broadcast_files_#{token}" %>
   <%= form.button fa_icon("upload", text: "Add File"), class: "btn btn-primary", type: :submit, data: { disable_with: fa_icon("spinner", text: "Adding File") } %>
 <% end %>

app/views/broadcasts/show.html.erb

@@ -3,12 +3,12 @@
     <meta name="project-id" content="<%= @project.id %>">
   <% end %>
   <% if @broadcast %>
-    <meta name="broadcast-token" content="<%= @broadcast.token %>">
+    <meta name="broadcast-token" current="true" content="<%= @broadcast.token %>">
   <% end %>
   <% # Subscribe to Action Cable for every broadcast including those in multi-view %>
   <% @multi_view_broadcasts.each do |multi_view_broadcast| %>
     <% if multi_view_broadcast.token != @broadcast.token %>
-      <meta name="broadcast-token" content="<%= multi_view_broadcast.token %>">
+      <meta name="broadcast-token" current="false" content="<%= multi_view_broadcast.token %>">
     <% end %>
   <% end %>
 <% end %>

app/views/public/broadcasts/_file_form.html.erb

@@ -1,4 +1,4 @@
 <%= bootstrap_form_for model, url: broadcast_url(token: token), layout: :inline, remote: true do |form| %>
-  <%= form.file_field :files, direct_upload: true, multiple: true, accept: "*", hide_label: true, wrapper_class: "w-65 mr-2", id: "broadcast_files_#{token}" %>
+  <%= form.file_field :files, direct_upload: true, multiple: true, accept: "*", hide_label: true, required: true, wrapper_class: "w-65 mr-2", id: "broadcast_files_#{token}" %>
   <%= form.button fa_icon("upload", text: "Add File"), class: "btn btn-primary", type: :submit, data: { disable_with: fa_icon("spinner", text: "Adding File") } %>
 <% end %>

spec/controllers/api/direct_uploads_controller_spec.rb

@@ -10,7 +10,7 @@ RSpec.describe Api::DirectUploadsController, type: :controller do
 
   describe '#create' do
     it 'returns data for a direct upload' do
-      post :create, params: { blob: blob_params }
+      post :create, params: { direct_upload: direct_upload_params }
 
       expect(response).to be_successful
       expect(response_body_data_attributes).to include('id', 'key', 'signed_id', 'url', 'headers')
@@ -19,7 +19,7 @@ RSpec.describe Api::DirectUploadsController, type: :controller do
 
   private
 
-  def blob_params
+  def direct_upload_params
     file = file_fixture("video_file.mp4")
     checksum = Digest::MD5.base64digest(StringIO.new(file.read).to_s)
 

spec/features/user_managing_broadcasts_spec.rb

@@ -40,12 +40,12 @@ feature "User managing broadcasts" do
     scenario "visit show page of broadcast", js: true do
       broadcast = create(:broadcast, :with_stream, :with_files, project: project)
       recording = create(:broadcast_recording, broadcast: broadcast)
-      
+
       visit project_broadcast_path(project, broadcast)
 
       expect(page).to have_content("Live stream is waiting to begin.")
       expect(page).to have_content("Copy URL")
-      
+
       within "#files" do
         expect(page).to have_content("contract.pdf")
       end
@@ -54,6 +54,17 @@ feature "User managing broadcasts" do
       expect(page).to have_content(recording.download_file_name)
     end
 
+    scenario "form will not submit if user clicks Add files without selected files", js: true do
+      broadcast = create(:broadcast, :with_stream, :with_files, project: project)
+
+      visit project_broadcast_path(project, broadcast)
+
+      expect(page).to have_content("Live stream is waiting to begin.")
+      expect(page).to have_content add_file_button
+
+      click_on add_file_button
+    end
+
     scenario "visit multi-view broadcast page", js: true do
       broadcast_one = create(:broadcast, :with_stream, :with_files, name: "Broadcast 1", project: project)
       broadcast_two = create(:broadcast, :with_stream, :with_files, name: "Broadcast 2", project: project)
@@ -80,8 +91,13 @@ feature "User managing broadcasts" do
     end
   end
 
+
   private
 
+  def add_file_button
+    'Add File'
+  end
+
   def broadcast_name_field
     "broadcast[name]"
   end

spec/models/headshot_collection_spec.rb

@@ -97,6 +97,18 @@ describe HeadshotCollection do
         expect(hash.keys).not_to include(:collection_uid)
       end
     end
+
+    context "when there are no releasables" do
+      it "includes a blank hash value for the ids_to_images key" do
+        releases = []
+        collection = HeadshotCollection.new(nil, releases)
+
+        hash = collection.to_hash
+
+        expect(hash.keys).to include(:ids_to_images)
+        expect(hash[:ids_to_images]).to eq(Hash.new)
+      end
+    end
   end
 
   private