adding users back into photos for better tracking, adding approve, flag and moderate photos, adding moderate link for administrators in application layout, improving photo controls, improving photo routing, adding a few indexes for photos table

app/controllers/photos.rb

@@ -1,8 +1,8 @@
 class Photos < Application
-  before :logged_in?, :only => [ :new, :create, :delete ]
-  before :administrator?, :only => [ :delete ]
+  before :logged_in?, :only => [ :new, :create, :destroy ]
+  before :administrator?, :only => [ :destroy, :approve, :moderate ]
   before :make_photo, :only => [ :new, :create ]
-  before :fetch_photo, :only => [ :show, :delete, :thumbnail ]
+  before :fetch_photo, :only => [ :show, :destroy, :thumbnail, :approve, :flag ]
   
   def index
     @page = params[:page].to_i
@@ -25,6 +25,7 @@ class Photos < Application
   end
   
   def create
+    @photo.user = current_user
     if @photo.save
       flash[:notice] = 'Great success'
       redirect url(:photo, @photo)
@@ -33,12 +34,12 @@ class Photos < Application
     end
   end
   
-  def delete
+  def destroy
     raise NotAcceptable unless request.xhr?
-    if current_user and current_user.administrator?
-      render
+    if @photo.destroy
+      render '', :status => 200
     else
-      redirect '/'
+      render '', :status => 401
     end
   end
   
@@ -55,6 +56,31 @@ class Photos < Application
     end
   end
   
+  def approve
+    raise NotAllowed unless request.xhr?
+    @photo.approved = true
+    if @photo.save
+      render '', :status => 200
+    else
+      render '', :status => 401
+    end
+  end
+  
+  def flag
+    raise NotAllowed unless request.xhr?
+    pf = PhotoFlag.new :photo_id => @photo.id, :user_id => current_user.id
+    if pf.save
+      render '', :status => 200
+    else
+      render '', :status => 401
+    end
+  end
+  
+  def moderate
+    @photos = Photo.find :all, :order => "photo_flags_count DESC, id ASC", :conditions => [ 'approved = ?', false ]
+    render
+  end
+  
   protected
   
   def make_photo

app/models/photo.rb

@@ -3,8 +3,12 @@ class Photo < ActiveRecord::Base
   attr_accessor :file
   attr_protected :email_hash
   
+  validates_presence_of :user_id
+  
+  belongs_to :user
   has_many :votes, :dependent => :destroy
   has_many :photo_favorites, :dependent => :destroy
+  has_many :photo_flags, :dependent => :destroy
   
   before_create :validate_image_sanity
   before_create :hashify_email
@@ -41,6 +45,10 @@ class Photo < ActiveRecord::Base
     "#{self.relative_directory}/#{self.filename}"
   end
   
+  ##
+  # Finds a Photo that the requested user can vote on by checking it against
+  # all of the photos previously voted.
+  #
   def self.next_available_votable_photo(user)
     pids = Vote.voted_photo_ids(user)
     c = if pids.empty?
@@ -51,6 +59,18 @@ class Photo < ActiveRecord::Base
     self.find :first, :conditions => c, :order => 'id ASC'
   end
   
+  ##
+  # Checks to see if a User or anonymous user has flagged a Photo as unsuitable.
+  #
+  def flagged?(user)
+    f = if user.respond_to?('id')
+      self.photo_flags.find :first, :conditions => "photo_flags.user_id = #{user.id}"
+    else
+      self.photo_flags.find :first, :conditions => "photo_flags.session_id = #{user}"
+    end
+    !f.nil?
+  end
+  
   protected
   
   ##
@@ -132,6 +152,10 @@ class Photo < ActiveRecord::Base
   # Regenerates the calculated value of oneness.
   #
   def set_oneness
-    self.oneness = (self.one_votes.to_f / self.votes_count.to_f * 100.0)
+    if self.votes_count == 0
+      self.oneness = 0
+    else
+      self.oneness = (self.one_votes.to_f / self.votes_count.to_f * 100.0)
+    end
   end
 end

app/models/photo_flag.rb

@@ -0,0 +1,5 @@
+class PhotoFlag < ActiveRecord::Base
+  belongs_to :photo, :counter_cache => true
+  belongs_to :user
+  validates_uniqueness_of :user_id
+end

app/models/user.rb

@@ -9,10 +9,12 @@ class User < ActiveRecord::Base
   validates_uniqueness_of :user_name
   validates_format_of :user_name, :with => /[\w_-]+/
   
+  has_many :photos, :dependent => :destroy
   has_many :votes, :dependent => :destroy, :order => 'votes.photo_id ASC'
-  has_many :photos, :dependent => :destroy, :through => :votes
+  has_many :voted_photos, :through => :votes, :class_name => 'Photo', :source => :photo
   has_many :photo_favorites, :dependent => :destroy
   has_many :favorite_photos, :through => :photo_favorites, :class_name => 'Photo', :source => :photo
+  has_many :photo_flags, :dependent => :destroy
   
   before_validation :saltify_password
   

app/views/layout/application.html.haml

@@ -21,12 +21,15 @@
       - if logged_in?
         #header_user
           %p
-            Welcome, 
+            Welcome,
             == <strong>#{current_user.user_name}</strong>
             %br
             %a{ :href => url(:delete_session, :id => session[:user_id]), :title => 'Log out of B.A.' }
               Log out
               %img{ :src => '/images/system-log-out.png' }
+            - if administrator?
+              %br
+              %a{ :href => url(:moderate_photos) } Moderate
       #tool_bar
         - menu_items.each do |menu_item|
           %a{ :href => menu_item[:href], :title => menu_item[:title] }

app/views/photos/_photo.html.haml

@@ -1,22 +1,14 @@
 :javascript
-  function add_favorite(pid)
-  {
-    new Ajax.Request('#{url(:favorites)}?photo_id=' + pid, { onSuccess: function(){ $('favorite_add').hide(); $('favorite_remove').show(); new Effect.Highlight($('favorites')); } });
-  }
-  function remove_favorite(del_url)
-  {
-    new Ajax.Request(del_url, { onSuccess: function(){ $('favorite_remove').hide(); $('favorite_add').show(); new Effect.Highlight($('favorites')); } });
-  }
-  function transition_out_controls()
+  function transition_voting_controls()
   {
     if($('to_be_unvoted').style.display == 'none')
       return false;
     new Effect.DropOut($('to_be_unvoted'));
-    setTimeout('transition_in_controls()', 1000);
+    setTimeout("new Effect.Appear($('to_be_voted'));", 1000);
   }
-  function transition_in_controls()
+  function notify_controls()
   {
-    new Effect.Appear($('to_be_voted'));
+    new Effect.Highlight($('photo_controls'));
   }
 
 %style{ :type => "text/css" }
@@ -42,18 +34,29 @@
 
 %div.centered{ :style => "width: #{@photo.width rescue 50}px" }
   - if @photo and @photo.exist?
-    #photo_controls
-      - unless Vote.voted_for?(@photo, current_user) or params[:controller] =~ /vote/i
-        %span#to_be_unvoted
-          %a{ :href => '#', :onclick => "transition_out_controls(); return false;" } Vote!
+    - if logged_in?
+      #photo_controls
+        - unless Vote.voted_for?(@photo, current_user) or params[:controller] =~ /vote/i
+          %span#to_be_unvoted
+            %a{ :href => '#', :onclick => "transition_voting_controls(); return false;" } Vote!
+            |
+        - if !@photo.approved? and !@photo.flagged?(current_user)
+          %span#to_be_flagged
+            %a{ :href => '#', :onclick => "new Ajax.Request('#{url(:flag_photo, @photo)}', { method: 'get', onSuccess: function() { $('to_be_flagged').hide(); notify_controls(); } }); return false;" } Flag inappropriate
+            |
+        - if !@photo.approved? and administrator?
+          %span#to_be_approved
+            %a{ :href => '#', :onclick => "new Ajax.Request('#{url(:approve_photo, @photo)}', { method: 'get', onSuccess: function() { $('to_be_approved').hide(); if($('to_be_flagged')){$('to_be_flagged').hide();}; notify_controls(); } }); return false;" } Approve
+            |
+        - if administrator?
+          %a{ :href => '#', :onclick => "if(confirm('Are you sure you want to destroy this photo?')){ new Ajax.Request('#{url(:photo, @photo)}', { method: 'delete', onSuccess: function() { window.location.href = '#{url(:photos)}'; } }); return false; }" } Destroy
           |
-      - if logged_in?
         %span#favorites
           %span#favorite_add{ :style => (current_user.photo_favorites.detect { |f| f.photo_id == @photo.id }.nil? ? '' : "display: none;") }
-            %a{ :href => '#', :onclick => "add_favorite(#{@photo.id}); return false;" }
+            %a{ :href => '#', :onclick => "new Ajax.Request('#{url(:favorites, :photo_id => @photo.id)}', { onSuccess: function(){ $('favorite_add').hide(); new Effect.Appear($('favorite_remove')); notify_controls(); } }); return false;" }
               Add as favorite
           %span#favorite_remove{ :style => (current_user.photo_favorites.detect { |f| f.photo_id == @photo.id }.nil? ? "display: none;" : '') }
-            %a{ :href => '#', :onclick => "remove_favorite('#{url(:favorite, :id => @photo.id)}?_method=delete'); return false;" }
+            %a{ :href => '#', :onclick => "new Ajax.Request('#{url(:favorite, :id => @photo.id)}', { method: 'delete', onSuccess: function(){ $('favorite_remove').hide(); new Effect.Appear($('favorite_add')); notify_controls(); } }); return false;" }
               Remove favorite
     %img{ :src => @photo.pathname, :alt => @photo.filename, :width => @photo.width, :height => @photo.height }
   - else

app/views/photos/moderate.html.haml

@@ -0,0 +1,22 @@
+%style{ :type => 'text/css' }
+  :sass
+    .moderate_box
+      :width 310px
+      :height 320px
+      :margin 10px auto
+      :text-align center
+      img
+        :display block
+        :margin-left auto
+        :margin-right auto
+
+%h1 Photo moderation panel
+
+- @photos.each do |photo|
+  %div.moderate_box{ :id => "photo_#{photo.id}" }
+    %img{ :src => photo_url(photo, 300, 300) }
+    %a{ :href => '#', :onclick => "new Ajax.Request('#{url(:approve_photo, photo)}', { method: 'get', onSuccess: function() { new Effect.DropOut($('photo_#{photo.id}')); } }); return false;" } Approve
+    |
+    == #{photo.photo_flags_count} Flags
+    |
+    %a{ :href => '#', :onclick => "if(confirm('Are you sure you want to destroy this photo?')){ new Ajax.Request('#{url(:photo, photo)}', { method: 'delete', onSuccess: function() { new Effect.DropOut($('photo_#{photo.id}')); } }); return false; }" } Destroy

app/views/photos/show.html.haml

@@ -1,6 +1,6 @@
 #main_photo_container
   = partial 'photos/photo'
-
+  
   - v = Vote.voted_for? @photo, current_user
   - if v
     #mini_container.centered

config/router.rb

@@ -11,5 +11,11 @@ Merb::Router.prepare do |r|
   r.resources :users
   r.resources :votes
   r.resources :favorites
-  r.resources :photos, :member => { :thumbnail => :get }
+  r.resources :photos, :member => {
+    :thumbnail => :get,
+    :flag => :get,
+    :approve => :get
+  }, :collection => {
+    :moderate => :get
+  }
 end

public/stylesheets/ba.css

@@ -85,6 +85,10 @@ h1 img {
   top: 10px;
 }
 
+#header_user a:hover {
+  font-weight: bold;
+}
+
 #tool_bar {
   margin-top: 7px;
   margin-bottom: 10x;
@@ -118,7 +122,7 @@ h1 img {
 #footer {
   font-size: 12px;
   height: 25px;
-  width: 90%;
+  width: 700px;
   border-top: 2px solid #e8e8e8;
   text-align: right;
   padding: 5px 0 10px 0;

schema/migrations/002_create_photos_migration.rb

@@ -2,11 +2,12 @@ class CreatePhotosMigration < ActiveRecord::Migration
   def self.up
     create_table :photos do |t|
       t.string :filename, :content_type, :email_hash
-      t.integer :width, :height
+      t.integer :width, :height, :user_id
       t.datetime :created_at
-      t.boolean :approved
+      t.boolean :approved, :default => false
     end
     add_index :photos, :email_hash
+    add_index :photos, :user_id
   end
 
   def self.down

schema/migrations/007_photo_flag_migration.rb

@@ -0,0 +1,16 @@
+class PhotoFlagMigration < ActiveRecord::Migration
+  def self.up
+    create_table :photo_flags do |t|
+      t.integer :user_id, :photo_id
+      t.string :session_id
+    end
+    add_index :photo_flags, :user_id
+    add_index :photo_flags, :photo_id
+    add_column :photos, :photo_flags_count, :integer, :default => 0
+  end
+
+  def self.down
+    drop_table :photo_flags
+    remove_column :photos, :photo_flags_count
+  end
+end

schema/migrations/008_photo_indexes_migration.rb

@@ -0,0 +1,13 @@
+class PhotoIndexesMigration < ActiveRecord::Migration
+  def self.up
+    add_index :photos, :votes_count
+    add_index :photos, :oneness
+    add_index :photos, :approved
+  end
+
+  def self.down
+    remove_index :photos, :votes_count
+    remove_index :photos, :oneness
+    remove_index :photos, :approved
+  end
+end

schema/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 6) do
+ActiveRecord::Schema.define(:version => 8) do
 
   create_table "photo_favorites", :force => true do |t|
     t.integer "photo_id"
@@ -19,6 +19,15 @@ ActiveRecord::Schema.define(:version => 6) do
   add_index "photo_favorites", ["user_id"], :name => "index_photo_favorites_on_user_id"
   add_index "photo_favorites", ["photo_id"], :name => "index_photo_favorites_on_photo_id"
 
+  create_table "photo_flags", :force => true do |t|
+    t.integer "user_id"
+    t.integer "photo_id"
+    t.string  "session_id"
+  end
+
+  add_index "photo_flags", ["photo_id"], :name => "index_photo_flags_on_photo_id"
+  add_index "photo_flags", ["user_id"], :name => "index_photo_flags_on_user_id"
+
   create_table "photos", :force => true do |t|
     t.string   "filename"
     t.string   "content_type"
@@ -26,13 +35,17 @@ ActiveRecord::Schema.define(:version => 6) do
     t.integer  "width"
     t.integer  "height"
     t.datetime "created_at"
-    t.boolean  "approved"
-    t.integer  "votes_count",  :default => 0
-    t.integer  "one_votes",    :default => 0
-    t.integer  "zero_votes",   :default => 0
+    t.boolean  "approved",          :default => false
+    t.integer  "votes_count",       :default => 0
+    t.integer  "one_votes",         :default => 0
+    t.integer  "zero_votes",        :default => 0
     t.float    "oneness"
+    t.integer  "photo_flags_count", :default => 0
   end
 
+  add_index "photos", ["approved"], :name => "index_photos_on_approved"
+  add_index "photos", ["oneness"], :name => "index_photos_on_oneness"
+  add_index "photos", ["votes_count"], :name => "index_photos_on_votes_count"
   add_index "photos", ["email_hash"], :name => "index_photos_on_email_hash"
 
   create_table "sessions", :force => true do |t|

spec/models/photo_flag_spec.rb

@@ -0,0 +1,7 @@
+require File.join( File.dirname(__FILE__), '..', "spec_helper" )
+
+describe PhotoFlag do
+
+  it "should have specs"
+
+end