Let admin reset votes on candidate news

app/assets/stylesheets/RonRonnement.css.scss

@@ -173,6 +173,9 @@ button, input[type='submit'] {
   &#admin_49_3, &.archive_button, &.reopen_button {
     background: url("/images/icones/target.png") no-repeat 2px 2px $C_CLAIR;
   }
+  &.reset_news {
+    background: url("/images/icones/loop.png") no-repeat 2px 2px $C_CLAIR;
+  }
   &.rewrite_news {
     background: url("/images/icones/pen.png") no-repeat 2px 2px $C_CLAIR;
   }

app/controllers/moderation/news_controller.rb

@@ -71,6 +71,12 @@ def refuse
     end
   end
 
+  def reset
+    enforce_reset_permission(@news)
+    @news.reset_votes
+    redirect_to [:moderation, @news], :notice => "Votes remis à zéro"
+  end
+
   def rewrite
     enforce_rewrite_permission(@news)
     if @news.unlocked?

app/models/news.rb

@@ -116,8 +116,7 @@ def be_refused
   end
 
   def be_rewritten
-    %w(pour contre).each {|word| $redis.del("news/#{self.id}/#{word}") }
-    node.update_column(:score, 0)
+    reset_votes
     Push.create(self, :kind => :rewritten, :username => moderator.name)
   end
 
@@ -216,6 +215,8 @@ def create_node(attrs={})
     super attrs
   end
 
+### Moderators' votes ###
+
   def vote_on_candidate(value, account)
     word = value > 0 ? "pour" : "contre"
     who  = account.login
@@ -240,6 +241,11 @@ def voters_against
     $redis.smembers("news/#{self.id}/contre").to_sentence
   end
 
+  def reset_votes
+    %w(pour contre).each {|word| $redis.del("news/#{self.id}/#{word}") }
+    node.update_column(:score, 0)
+  end
+
 ### ACL ###
 
   def self.accept_threshold
@@ -278,6 +284,10 @@ def refusable_by?(account)
     account.admin? || (account.moderator? && refusable?)
   end
 
+  def resetable_by?(account)
+    account.admin?
+  end
+
   def rewritable_by?(account)
     account.admin?
   end

app/views/moderation/news/_vote.html.haml

@@ -38,5 +38,6 @@
       #buttons_49_3(style="display: none;")
         = button_to "Publier", accept_moderation_news_path(@news), :class => "publish_news"
         = button_to "Refuser", refuse_moderation_news_path(@news), :class => "refuse_news"
+        = button_to "Revoter", reset_moderation_news_path(@news), :class => "reset_news"
       - if @news.node.cc_licensed?
         = button_to "Re-rédaction", rewrite_moderation_news_path(@news), :class => "rewrite_news"

config/initializers/canable.rb

@@ -25,6 +25,7 @@ def enforce_#{can}_permission(resource, message="")
 Canable.add(:tag,     :taggable)
 Canable.add(:accept,  :acceptable)
 Canable.add(:refuse,  :refusable)
+Canable.add(:reset,   :resetable)
 Canable.add(:rewrite, :rewritable)
 Canable.add(:ppp,     :pppable)
 Canable.add(:answer,  :answerable)

config/routes.rb

@@ -136,6 +136,7 @@
         post :refuse
         post :rewrite
         post :ppp
+        post :reset
         get :vote
       end
     end