validate track name, render instead of redirect for campaigns, fix view for new sponsor

app/controllers/admin/campaigns_controller.rb

@@ -15,9 +15,8 @@ module Admin
         redirect_to(admin_conference_campaigns_path(conference_id: @conference.short_title),
                     notice: 'Campaign successfully created.')
       else
-        redirect_to(new_admin_conference_campaign_path(conference_id: @conference.short_title),
-                    alert: "Creating of Campaign for #{@conference.short_title} failed." \
-                    "#{@campaign.errors.full_messages.join('. ')}.")
+	flash[:error] = 'Campaign creation failed. ' + @campaign.errors.full_messages.to_sentence
+	render action: 'new'
       end
     end
 
@@ -31,11 +30,8 @@ module Admin
                         conference_id: @conference.short_title),
                     notice: "Campaign '#{@campaign.name}' successfully updated.")
       else
-        redirect_to(edit_admin_conference_campaign_path(
-                        conference_id: @conference.short_title,
-                        id: @campaign.id),
-                    alert: "Update of Campaign for #{@conference.short_title} failed." \
-                    "#{@campaign.errors.full_messages.join('. ')}.")
+	flash[:error] = 'Campaign update failed. ' + @campaign.errors.full_messages.to_sentence
+	render action: 'edit'
       end
     end
 

app/models/track.rb

@@ -5,6 +5,8 @@ class Track < ActiveRecord::Base
 
   before_create :generate_guid
 
+  validates :name, presence: true
+
   private
 
   def generate_guid

app/views/admin/sponsors/_form.html.haml

@@ -1,9 +1,9 @@
 .row
   .col-md-12
     .page-header
-      -if @sponsor.new_record?
-        New
       %h1
+        -if @sponsor.new_record?
+          New
         Sponsor
         = @sponsor.name
 .row
@@ -16,4 +16,4 @@
       = f.input :website_url
       = f.input :sponsorship_level, collection: @conference.sponsorship_levels
       %p.text-right
-        = f.action :submit, as: :button, button_html: { class: 'btn btn-primary' }
+        = f.action :submit, as: :button, button_html: { class: 'btn btn-primary' }