brought-to-you-by on items#show lists contributors

app/controllers/items_controller.rb

@@ -48,6 +48,9 @@ class ItemsController < ApplicationController
 
     respond_to do |format|
       format.html do
+        unless fragment_exist?("items/#{@item.id} contributors")
+          @contributors_with_counts = @item.contributors_with_counts
+        end
 
         @trading_closet_hangers_by_owned = {
           true => @item.closet_hangers.owned_trading.newest.includes(:user),

app/helpers/items_helper.rb

@@ -109,6 +109,10 @@ module ItemsHelper
     end.to_sentence.html_safe
   end
   
+  def format_contribution_count(count)
+    "(×#{count})".html_safe if count > 1
+  end
+
   private
 
   def build_on_pet_types(species, special_color=nil, &block)

app/models/contribution_observer.rb

@@ -1,6 +1,11 @@
 class ContributionObserver < ActiveRecord::Observer
   def after_create(contribution)
     controller.expire_fragment('outfits#new latest_contribution')
+    
+    if contribution.contributed_type == 'SwfAsset'
+      item = contribution.contributed.item
+      controller.expire_fragment("items/#{item.id} contributors")
+    end
   end
 
   private

app/models/item.rb

@@ -43,6 +43,32 @@ class Item < ActiveRecord::Base
     @owned || @wanted
   end
   
+  # Return an OrderedHash mapping users to the number of times they
+  # contributed to this item's assets, from most contributions to least.
+  def contributors_with_counts
+    # Get contributing users' IDs
+    swf_asset_ids = swf_assets.select(SwfAsset.arel_table[:id]).map(&:id)
+    swf_asset_contributions = Contribution.select('user_id').
+      where(:contributed_type => 'SwfAsset', :contributed_id => swf_asset_ids)
+    contributor_ids = swf_asset_contributions.map(&:user_id)
+    
+    # Get the users, mapped by ID
+    contributors_by_id = {}
+    User.find(contributor_ids).each { |u| contributors_by_id[u.id] = u }
+    
+    # Count each user's contributions
+    contributor_counts_by_id = Hash.new(0)
+    contributor_ids.each { |id| contributor_counts_by_id[id] += 1 }
+    
+    # Build an OrderedHash mapping users to counts in descending order
+    contributors_with_counts = ActiveSupport::OrderedHash.new
+    contributor_counts_by_id.sort_by { |k, v| v }.reverse.each do |id, count|
+      contributor = contributors_by_id[id]
+      contributors_with_counts[contributor] = count
+    end
+    contributors_with_counts
+  end
+
   def nc?
     NCRarities.include?(rarity_index)
   end

app/stylesheets/items/_show.sass

@@ -109,6 +109,24 @@ body.items-show
       .less
         display: none
   
+  #item-contributors
+    +subtle-banner
+    clear: both
+    
+    header
+      display: inline
+      font-weight: bold
+      margin-right: .25em
+    
+    footer
+      display: inline
+    
+    ul
+      +comma-delimited-list
+      
+      li:last-child::after
+        content: "."
+
   #item-preview-header
     clear: both
     

app/stylesheets/outfits/_new.sass

@@ -198,14 +198,7 @@ body.outfits-new
         width: 80px
   
   #latest-contribution
-    border:
+    +subtle-banner
-      color: $soft-border-color
-      style: solid
-      width: 1px 0
-    font-size: 85%
-    margin: 1em 0
-    padding: .5em 0
-    text-align: center
     
     #recent-contributions-link
       font-weight: bold

app/stylesheets/partials/clean/_mixins.sass

@@ -106,3 +106,13 @@
   background: $warning-bg-color
   border: 1px solid $warning-border-color
   color: $warning-color
+
+=subtle-banner
+  border:
+    color: $soft-border-color
+    style: solid
+    width: 1px 0
+  font-size: 85%
+  margin: 1em 0
+  padding: .5em 0
+  text-align: center

app/views/items/show.html.haml

@@ -89,6 +89,15 @@
         %span.more more
         %span.less less
 
+- cache "items/#{@item.id} contributors" do
+  - unless @contributors_with_counts.empty?
+    #item-contributors
+      %header Brought to you by:
+      %ul
+        - @contributors_with_counts.each do |contributor, count|
+          %li #{link_to contributor.name, user_contributions_path(contributor)} #{format_contribution_count(count)}
+      %footer Thanks, everybody!
+
 - cache 'items#show preview_header' do
   #item-preview-header
     %h3 Preview

config/initializers/activemerchant.rb

@@ -0,0 +1,21 @@
+if defined? ActiveMerchant
+  if Rails.env.development?
+    ActiveMerchant::Billing::Base.mode = :test
+    paypal_options = {
+      :login => "dti00_1309660809_biz_api1.gmail.com",
+      :password => "1309660841",
+      :signature => "A8hoaApkuosyp0eSB5fO.FMMFsFPA2E9DtCZkbNkmIuVRqeOmTOzXqQQ"
+    }
+  elsif Rails.env.production?
+    ActiveMerchant::Billing::Base.mode = :production
+    paypal_options = {
+      :login => "matchu1993_api1.gmail.com",
+      :password => "JCJ2NK5DTBZ94QNP",
+      :signature => "AFcWxV21C7fd0v3bYYYRCpSSRl31AFGfnit6OH.i894Lf4Bgc81N2lfc"
+    }
+  else
+    raise RuntimeError, "ActiveMerchant is not configured for #{Rails.env}. See config/initializers/activemerchant.rb"
+  end
+
+  ::DONATION_GATEWAY = ActiveMerchant::Billing::PaypalExpressGateway.new(paypal_options)  
+end

public/stylesheets/compiled/screen.css

@@ -1935,10 +1935,53 @@ body.items-show #trade-hangers .toggle .less {
   display: none;
 }
 /* line 112, ../../../app/stylesheets/items/_show.sass */
+body.items-show #item-contributors {
+  border-color: #aaddaa;
+  border-style: solid;
+  border-width: 1px 0;
+  font-size: 85%;
+  margin: 1em 0;
+  padding: 0.5em 0;
+  text-align: center;
+  clear: both;
+}
+/* line 116, ../../../app/stylesheets/items/_show.sass */
+body.items-show #item-contributors header {
+  display: inline;
+  font-weight: bold;
+  margin-right: 0.25em;
+}
+/* line 121, ../../../app/stylesheets/items/_show.sass */
+body.items-show #item-contributors footer {
+  display: inline;
+}
+/* line 124, ../../../app/stylesheets/items/_show.sass */
+body.items-show #item-contributors ul {
+  list-style-type: none;
+}
+/* line 5, ../../../../../../.rvm/gems/ruby-1.9.2-p290/gems/compass-0.10.6/frameworks/compass/stylesheets/compass/utilities/lists/_inline-list.scss */
+body.items-show #item-contributors ul, body.items-show #item-contributors ul li {
+  margin: 0px;
+  padding: 0px;
+  display: inline;
+}
+/* line 24, ../../../../../../.rvm/gems/ruby-1.9.2-p290/gems/compass-0.10.6/frameworks/compass/stylesheets/compass/utilities/lists/_inline-list.scss */
+body.items-show #item-contributors ul li:after {
+  content: ", ";
+}
+/* line 26, ../../../../../../.rvm/gems/ruby-1.9.2-p290/gems/compass-0.10.6/frameworks/compass/stylesheets/compass/utilities/lists/_inline-list.scss */
+body.items-show #item-contributors ul li:last-child:after, body.items-show #item-contributors ul li.last:after {
+  content: "";
+}
+/* line 127, ../../../app/stylesheets/items/_show.sass */
+body.items-show #item-contributors ul li:last-child::after {
+  content: ".";
+}
+/* line 130, ../../../app/stylesheets/items/_show.sass */
 body.items-show #item-preview-header {
   clear: both;
 }
-/* line 115, ../../../app/stylesheets/items/_show.sass */
+/* line 133, ../../../app/stylesheets/items/_show.sass */
 body.items-show #item-preview-header h3, body.items-show #item-preview-header a {
   display: -moz-inline-box;
   -moz-box-orient: vertical;
@@ -1950,17 +1993,17 @@ body.items-show #item-preview-header h3, body.items-show #item-preview-header a
 body.items-show #item-preview-header h3, body.items-show #item-preview-header a {
   *display: inline;
 }
-/* line 117, ../../../app/stylesheets/items/_show.sass */
+/* line 135, ../../../app/stylesheets/items/_show.sass */
 body.items-show #item-preview-header a {
   font-size: 85%;
   margin: -1.5em 0 0 1em;
 }
-/* line 121, ../../../app/stylesheets/items/_show.sass */
+/* line 139, ../../../app/stylesheets/items/_show.sass */
 body.items-show .nc-icon {
   height: 16px;
   width: 16px;
 }
-/* line 125, ../../../app/stylesheets/items/_show.sass */
+/* line 143, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers {
   border: 1px solid #006600;
   float: right;
@@ -1972,13 +2015,13 @@ body.items-show #closet-hangers {
   position: relative;
   z-index: 2;
 }
-/* line 138, ../../../app/stylesheets/items/_show.sass */
+/* line 156, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers h3 {
   font-size: 150%;
   font-weight: bold;
   margin-bottom: 0.25em;
 }
-/* line 143, ../../../app/stylesheets/items/_show.sass */
+/* line 161, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers #closet-hangers-ownership-groups {
   overflow: hidden;
   display: inline-block;
@@ -1988,41 +2031,41 @@ body.items-show #closet-hangers #closet-hangers-ownership-groups {
 body.items-show #closet-hangers #closet-hangers-ownership-groups {
   display: block;
 }
-/* line 147, ../../../app/stylesheets/items/_show.sass */
+/* line 165, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers #closet-hangers-ownership-groups div {
   float: left;
   margin: 0 5%;
   text-align: left;
   width: 40%;
 }
-/* line 153, ../../../app/stylesheets/items/_show.sass */
+/* line 171, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers #closet-hangers-ownership-groups div li {
   list-style: none;
   word-wrap: break-word;
 }
-/* line 157, ../../../app/stylesheets/items/_show.sass */
+/* line 175, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers #closet-hangers-ownership-groups div li label.unlisted {
   font-style: italic;
 }
-/* line 160, ../../../app/stylesheets/items/_show.sass */
+/* line 178, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers form {
   padding: 0.5em 0;
 }
-/* line 163, ../../../app/stylesheets/items/_show.sass */
+/* line 181, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers select {
   width: 9em;
 }
-/* line 166, ../../../app/stylesheets/items/_show.sass */
+/* line 184, ../../../app/stylesheets/items/_show.sass */
 body.items-show #closet-hangers input[type=number] {
   margin-right: 0.5em;
   width: 3em;
 }
-/* line 172, ../../../app/stylesheets/items/_show.sass */
+/* line 190, ../../../app/stylesheets/items/_show.sass */
 body.items-show.js #trade-hangers p {
   max-height: 3em;
   overflow: hidden;
 }
-/* line 176, ../../../app/stylesheets/items/_show.sass */
+/* line 194, ../../../app/stylesheets/items/_show.sass */
 body.items-show.js #trade-hangers p.showing-more {
   max-height: none;
 }
@@ -3932,12 +3975,12 @@ body.outfits-new #latest-contribution {
   padding: 0.5em 0;
   text-align: center;
 }
-/* line 210, ../../../app/stylesheets/outfits/_new.sass */
+/* line 203, ../../../app/stylesheets/outfits/_new.sass */
 body.outfits-new #latest-contribution #recent-contributions-link {
   font-weight: bold;
   margin-right: 0.5em;
 }
-/* line 214, ../../../app/stylesheets/outfits/_new.sass */
+/* line 207, ../../../app/stylesheets/outfits/_new.sass */
 body.outfits-new #latest-contribution #latest-contribution-created-at {
   color: #448844;
   margin-left: 0.5em;