use template links with 2+ submitters

app/controllers/start_form_controller.rb

@@ -14,22 +14,20 @@ class StartFormController < ApplicationController
 
   def update
     @submitter = Submitter.where(submission: @template.submissions.where(deleted_at: nil))
+                          .order(id: :desc)
                           .then { |rel| params[:resubmit].present? ? rel.where(completed_at: nil) : rel }
                           .find_or_initialize_by(**submitter_params.compact_blank)
 
     if @submitter.completed_at?
       redirect_to start_form_completed_path(@template.slug, email: submitter_params[:email])
     else
-      @submitter.assign_attributes(
-        uuid: @template.submitters.first['uuid'],
-        ip: request.remote_ip,
-        ua: request.user_agent,
-        preferences: { 'send_email' => true }
-      )
+      if @template.submitters.to_a.size > 1 && @submitter.new_record?
+        @error_message = 'Not found'
 
-      @submitter.submission ||= Submission.new(template: @template,
-                                               template_submitters: @template.submitters,
-                                               source: :link)
+        return render :show
+      end
+
+      assign_submission_attributes(@submitter, @template) if @submitter.new_record?
 
       if @submitter.save
         redirect_to submit_form_path(@submitter.slug)
@@ -47,6 +45,21 @@ class StartFormController < ApplicationController
 
   private
 
+  def assign_submission_attributes(submitter, template)
+    submitter.assign_attributes(
+      uuid: template.submitters.first['uuid'],
+      ip: request.remote_ip,
+      ua: request.user_agent,
+      preferences: { 'send_email' => true }
+    )
+
+    submitter.submission ||= Submission.new(template:,
+                                            template_submitters: template.submitters,
+                                            source: :link)
+
+    submitter
+  end
+
   def submitter_params
     params.require(:submitter).permit(:email, :phone, :name).tap do |attrs|
       attrs[:email] = Submissions.normalize_email(attrs[:email])

app/views/start_form/completed.html.erb

@@ -24,9 +24,11 @@
         <%= button_to button_title(title: 'Send copy to Email', disabled_with: 'Sending', icon: svg_icon('mail_forward', class: 'w-6 h-6')), send_submission_email_index_path, params: { submitter_slug: @submitter.slug }, form: { onsubmit: 'event.submitter.disabled = true' }, class: 'base-button w-full' %>
       </div>
     <% end %>
-    <div>
-      <%= button_to button_title(title: 'Resubmit', disabled_with: 'Resubmit', icon: svg_icon('reload', class: 'w-6 h-6')), start_form_path(@template.slug), params: { submitter: { email: params[:email] }, resubmit: true }, method: :put, form: { onsubmit: 'event.submitter.disabled = true' }, class: 'white-button w-full' %>
-    </div>
+    <% if @template.submitters.to_a.size == 1 %>
+      <div>
+        <%= button_to button_title(title: 'Resubmit', disabled_with: 'Resubmit', icon: svg_icon('reload', class: 'w-6 h-6')), start_form_path(@template.slug), params: { submitter: { email: params[:email] }, resubmit: true }, method: :put, form: { onsubmit: 'event.submitter.disabled = true' }, class: 'white-button w-full' %>
+      </div>
+    <% end %>
   </div>
 </div>
 <%= render 'shared/attribution', link_path: '/start' %>

app/views/start_form/show.html.erb

@@ -27,7 +27,8 @@
       <%= form_for @submitter, url: start_form_path(@template.slug), data: { turbo_frame: :_top }, method: :put, html: { class: 'space-y-4', onsubmit: 'event.submitter.disabled = true' } do |f| %>
         <div class="form-control !mt-0">
           <%= f.label :email, class: 'label' %>
-          <%= f.email_field :email, value: current_user&.email || params[:email], required: true, class: 'base-input', placeholder: 'Provide your email to start' %>
+          <%= f.email_field :email, value: current_user&.email || params[:email] || @submitter.email, required: true, class: 'base-input', placeholder: 'Provide your email to start' %>
+          <%= @error_message %>
         </div>
         <div class="form-control">
           <%= f.button button_title(title: 'Start', disabled_with: 'Starting'), class: 'base-button' %>

app/views/templates/_title.html.erb

@@ -23,7 +23,7 @@
     </div>
   </div>
   <div class="flex md:justify-between space-x-2 flex-none pt-1">
-    <% if template.submitters.to_a.size == 1 && !template.deleted_at? %>
+    <% if !template.deleted_at? %>
       <%= render 'shared/clipboard_copy', text: start_form_url(slug: @template.slug), class: 'btn btn-sm btn-neutral text-white', icon_class: 'w-6 h-6 text-white', copy_title: 'Copy Link', copied_title: 'Copied', copy_title_md: 'Link', copied_title_md: 'Copied' %>
     <% end %>
     <% if !template.deleted_at? && can?(:destroy, template) %>