Merge pull request #410 from cs169/Duplicate_Event

Duplicate an Event Only

Author: cycomachead

app/controllers/admin/events_controller.rb

@@ -182,6 +182,30 @@ def toggle_attendance
       end
     end
 
+    def duplicate
+      count = params[:count].to_i # Invalid input will be treated as 0, which will be caught by validation below
+
+      # Validate count
+      unless count.between?(1, 100)
+        flash[:alert] = 'Invalid number of duplicates. Please enter a number between 1 and 100.'
+        redirect_to admin_conference_program_event_path(@conference.short_title, @event)
+        return
+      end
+
+      duplicator = EventDuplicator.new(@event, current_user)
+      duplicated_events = duplicator.duplicate(count)
+
+      flash[:notice] = if duplicated_events.length == 1
+                         "Event '#{duplicated_events.first.title}' duplicated successfully."
+                       else
+                         "#{duplicated_events.length} copies of '#{@event.title}' created successfully."
+                       end
+      redirect_to admin_conference_program_events_path(@conference.short_title)
+    rescue StandardError => e
+      flash[:alert] = "Could not duplicate event"
+      redirect_to admin_conference_program_event_path(@conference.short_title, @event)
+    end
+
     def destroy
       @event = Event.find(params[:id])
       if @event.destroy

app/services/event_duplicator.rb

@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+class EventDuplicator
+  def initialize(event, submitter = nil)
+    @event = event
+    @submitter = submitter
+  end
+
+  def duplicate(count = 1)
+    duplicated_events = []
+    @event.class.transaction do
+      count.times do
+        duplicated_events << create_duplicate
+      end
+    end
+    duplicated_events
+  end
+
+  private
+
+  def create_duplicate
+    duplicate_event = Event.create!(
+      # Content fields
+      title:                        @event.title,
+      subtitle:                     @event.subtitle,
+      abstract:                     @event.abstract,
+      description:                  @event.description,
+      submission_text:              @event.submission_text,
+      committee_review:             @event.committee_review,
+      proposal_additional_speakers: @event.proposal_additional_speakers,
+      event_type:                   @event.event_type,
+      track:                        @event.track,
+      difficulty_level:             @event.difficulty_level,
+      language:                     @event.language,
+      presentation_mode:            @event.presentation_mode,
+      require_registration:         @event.require_registration,
+      max_attendees:                @event.max_attendees,
+      program:                      @event.program,
+      state:                        'new',
+      progress:                     @event.progress,
+      public:                       @event.public,
+      is_highlight:                 @event.is_highlight,
+      superevent:                   @event.superevent,
+
+      # Don't copy: start_time, room_id, parent_id (reset to nil)
+      start_time:                   nil,
+      room_id:                      nil,
+      parent_id:                    nil,
+
+      # Submitter
+      submitter:                    @submitter
+    )
+
+    # Copy speakers and volunteers
+    duplicate_event.speakers = @event.speakers
+    duplicate_event.volunteers = @event.volunteers
+    duplicate_event.save!
+
+    duplicate_event
+  end
+end

app/views/admin/events/_proposal.html.haml

@@ -10,6 +10,8 @@
           - if @event.public
             = link_to 'Preview', conference_program_proposal_path(@conference.short_title, @event.id), class: 'btn btn-mini btn-primary'
           = link_to 'Registrations', registrations_admin_conference_program_event_path(@conference.short_title, @event), class: 'btn btn-success'
+          %button.btn.btn-mini.btn-info{'data-toggle' => 'modal', 'data-target' => '#duplicateEventModal'}
+            Duplicate
           = link_to 'Edit', edit_admin_conference_program_event_path(@conference.short_title, @event), class: 'btn btn-mini btn-primary'
           = link_to 'Delete', admin_conference_program_event_path(@conference.short_title, @event), method: :delete, data: { confirm: 'Are you sure you want to delete this event?' }, class: 'btn btn-mini btn-danger'
 

app/views/admin/events/show.html.haml

@@ -67,3 +67,23 @@
 
     #proposal-commercials.tab-pane
       = render partial: 'shared/media_items', locals: { commercials: @event.commercials }
+
+#duplicateEventModal.modal.fade{tabindex: '-1', role: 'dialog', 'aria-labelledby' => 'duplicateEventModalLabel'}
+  .modal-dialog{role: 'document'}
+    .modal-content
+      .modal-header
+        %button.close{'data-dismiss' => 'modal', 'aria-label' => 'Close'}
+          %span{'aria-hidden' => 'true'}
+            ×
+        %h4#duplicateEventModalLabel.modal-title
+          Duplicate Event
+      = form_with url: duplicate_admin_conference_program_event_path(@conference.short_title, @event), method: :post, local: true do |f|
+        .modal-body
+          .form-group
+            %label{for: 'duplicate_count'} Number of copies to create:
+            %input#duplicate_count.form-control{type: 'number', name: 'count', value: '1', min: '1', max: '100', required: true}
+            %small.form-text.text-muted
+              You can create up to 100 copies at once. The new events will be created with you as the submitter.
+        .modal-footer
+          %button.btn.btn-secondary{'data-dismiss' => 'modal'} Cancel
+          %button.btn.btn-primary{type: 'submit'} Create Copies

config/routes.rb

@@ -119,6 +119,7 @@
             patch :unconfirm
             patch :restart
             get :vote
+            post :duplicate
           end
         end
         resources :reports, only: :index