added drag and drop.

README.textile

@@ -0,0 +1,72 @@
+h1. Asset Gallery
+
+This extension allows you to create galleries of Paperclipped Assets. Provides an admin interface to add, sort and remove assets from a Gallery with drag and drop, and radius tags to easily include the Galleries in your site.
+
+("sbmsuite":http://github.com/sbmsuite) modified the views from zapnap/radiant-flash-gallery-extension to use in the new extension. However THIS IS NOT A FORK. It is a newly created extension. "jfqd":http://github.com/jfqd modified the extension to support ujs drag and drop and globalize2-paperclipped compatibility.
+
+Tested with radiant 0.9.1
+
+h2. Installation
+
+Install the "Paperclipped Extension":http://github.com/kbingman/paperclipped/ before the Asset Gallery Extension:
+
+<pre>
+  git clone http://github.com/kbingman/paperclipped.git vendor/extensions/paperclipped
+
+  rake production db:migrate:extensions
+  rake production radiant:extensions:paperclipped:update
+</pre>
+
+Now install the Asset Gallery Extension:
+
+<pre>
+  git clone http://github.com/jfqd/radiant-asset_gallery-extension vendor/extensions/asset_gallery
+
+  rake production db:migrate:extensions
+  rake production radiant:extensions:asset_gallery:update
+</pre>
+
+Be careful about the extensions load order:
+
+config.extensions = [ :paperclipped, :all ]
+
+h2. Tag Examples
+
+h3. List of galleries
+
+<pre><code>
+<r:gallery:each>
+  <div>
+    <div><r:gallery:first_image size="thumbnail" />
+    <div><r:gallery:name /></div>
+  </div>
+</r:gallery:each>
+</code></pre>
+
+h3. Images of a gallery with caption
+
+<pre><code>
+<r:gallery:items name="my-gallery">
+  <div class="slide">
+    <r:gallery_item:image size="normal" />
+    <p><r:gallery_item:caption /></p>
+  </div>
+</r:gallery:items>
+</code></pre>
+
+h2. Compatibility
+
+This extension is compatible with the "Globalize2-Paperclipped Extension":http://github.com/Aissac/radiant-globalize2-paperclipped-extension. You need to install the Globalize2-Paperclipped Extension before the Asset Gallery Extension.
+
+<pre>
+  git clone http://github.com/Aissac/radiant-globalize2-paperclipped-extension.git vendor/extensions/globalize2_paperclipped
+</pre>
+
+Be careful about the extensions load order:
+
+config.extensions = [ :paperclipped, :globalize2, :globalize2_paperclipped, :all ]
+
+h2. Contributors
+
+"sbmsuite":http://github.com/sbmsuite
+"jfqd":http://github.com/jfqd

app/controllers/admin/galleries_controller.rb

@@ -6,26 +6,25 @@ def index
 
   def new
     @gallery = Gallery.new
-    render(:action => 'edit')
   end
 
   def edit
     @gallery = Gallery.find(params[:id])
-    render(:action => 'edit')
+    if @gallery
+      @items  = @gallery.gallery_items
+      @assets = Asset.quick_search("",@items)
+      render(:action => 'edit')
+    else
+      redirect_to(admin_gallery_path)
+    end
   end
 
   def create
     params[:gallery][:user_id] = current_user.id
-    @gallery = Gallery.new(params[:gallery])    
+    @gallery = Gallery.new(params[:gallery])
     if @gallery.save
-      checked = params[:checked]
-      checked.each do |id, selected|
-        if selected == 1.to_s
-          @gallery.gallery_items.create(:asset_id => id)
-        end
-      end
       flash[:notice] = "Successfully added a new gallery."
-      redirect_to(admin_galleries_path)
+      redirect_to(edit_admin_gallery_path(@gallery.id))
     else
       flash[:error] = "Validation errors occurred while processing this form. Please take a moment to review the form and correct any input errors before continuing."
       render(:action => 'edit')
@@ -35,17 +34,6 @@ def create
   def update
     @gallery = Gallery.find(params[:id])
     if @gallery.update_attributes(params[:gallery])
-      @gallery.gallery_items.clear
-      checked = params[:checked]
-      checked.each do |id, selected|
-        if selected == 1.to_s
-          if @gallery.gallery_items.exists?(:asset_id => id)
-            next
-          else
-            @gallery.gallery_items.create(:asset_id => id)
-          end
-        end
-      end      
       flash[:notice] = "Successfully updated the gallery details."
       redirect_to(admin_galleries_path)
     else
@@ -62,4 +50,20 @@ def destroy
     redirect_to(admin_galleries_path)
   end
 
+  # search assets
+  def search
+    gallery = Gallery.find(params[:id])
+    items   = gallery.gallery_items # remove items from assets view!
+    @assets = Asset.quick_search(params[:search], items)
+    respond_to do |format|
+      format.html { render :layout => false }
+      format.js {
+        render :update do |page|
+          page.replace_html "asset_items", :partial => 'admin/galleries/assets.html.haml', :locals => { :assets => @assets }
+          page << 'Asset.MakeDraggables();'
+        end
+      }
+    end
+  end
+
 end

app/controllers/admin/gallery_items_controller.rb

@@ -0,0 +1,52 @@
+class Admin::GalleryItemsController < ApplicationController
+
+  # add an item to the gallery
+  def create
+    asset_id = (params[:gallery_item][:asset_id]).gsub("gallery_item_", "")
+    gallery  = Gallery.find(params[:gallery_id])
+    unless gallery.gallery_items.exists?(:asset_id => asset_id)
+      gallery.gallery_items.create(:asset_id => asset_id)
+    end
+    respond_to do |format|
+      format.html { render :nothing => true }
+      format.js   {
+        render :update, :status => 200 do |page|
+          page << 'Asset.SortItems();'
+        end
+      }
+    end
+  end
+
+  # remove an item from the gallery
+  def destroy
+    asset_id = params[:id].gsub("gallery_item_", "")
+    item = GalleryItem.find_by_gallery_id_and_asset_id(params[:gallery_id], asset_id)
+    item.destroy
+    respond_to do |format|
+      format.html { render :nothing => true }
+      format.js   {
+        gallery = Gallery.find(params[:gallery_id])
+        items   = gallery.gallery_items # remove items from assets view!
+        @assets = Asset.quick_search('', items)
+        render :update, :status => 200 do |page|
+          page.replace_html "asset_items", :partial => 'admin/galleries/assets.html.haml', :locals => { :assets => @assets }
+          page << 'Asset.MakeDraggables();'
+        end
+      }
+    end
+  end
+
+  # sort gallery items
+  def sort
+    gallery = Gallery.find(params[:gallery_id])
+    items = CGI::parse(params[:items])['gallery_items[]']
+    items.each_with_index do |id, index|
+      gallery.gallery_items.update_all(['position=?', index+1], ['asset_id=?', id])
+    end
+    respond_to do |format|
+      format.html { render :nothing => true }
+      format.js   { render :nothing => true, :status => 200 }
+    end
+  end
+
+end

app/models/gallery.rb

@@ -1,6 +1,6 @@
 class Gallery < ActiveRecord::Base
   belongs_to :user
-  has_many :gallery_items, :dependent => :destroy
+  has_many :gallery_items, :order => :position, :dependent => :destroy
 
   validates_uniqueness_of :name
 end

app/views/admin/galleries/_assets.html.haml

@@ -0,0 +1,5 @@
+- assets.each do |asset|
+  %li.asset-list-item{:id => "gallery_item_#{asset.id}"}
+    = image_tag(asset.thumbnail(:thumbnail), :alt => asset.asset_file_name, :title => asset.title)
+    %span= h asset.title[0..75]
+    %span.delete

app/views/admin/galleries/_items.html.haml

@@ -0,0 +1,5 @@
+- items.each do |item|
+  %li.asset-list-item{:id => "gallery_item_#{item.asset.id}"}
+    = image_tag(item.asset.thumbnail(:thumbnail), :alt => item.asset.asset_file_name, :title => item.asset.title)
+    %span= h item.asset.title[0..75]
+    %span.delete

app/views/admin/galleries/edit.html.haml

@@ -1,71 +1,49 @@
-- content_for 'page_css' do
-  :sass
-    p.title
-      margin: 10px 0 !important
+- @stylesheets << 'admin/gallery'
+- include_javascript 'admin/dragdrop'
+- include_javascript 'admin/gallery'
 
-    #content .form-area div.error-with-field
-      input.textbox
-        font-family: Georgia,Palatino,"Times New Roman",Times,serif
-        font-size: 200%
-        width: 100%
-
-    textarea.textarea
-      height: 150px !important
-      width: 100%
-      display: block
-
-    input.file
-      margin: 50px 0
-
-    img.asset
-      margin: 5px 0
-      border: 2px solid #fff
-
-    a.asset
-      display: block
-      margin: 5px 0
-
-    div.asset-list-container
-      overflow: auto
-      width: 100%
-      height: 300px
-      border: 2px solid #cccccc
-
-    div.asset-list-item-container
-      display: inline-block
-
-    div.asset-list-item
-      border: 1px solid #cccccc
-      text-align: center
-      padding: 5px
-      margin: 5px
-
-%h1= @gallery.new_record? ? 'New Gallery' : 'Edit Gallery'
+%h1= 'Edit Gallery'
 
 - form_for [:admin, @gallery], :html => {:multipart => true} do |f|
-  .form-area
-    %p.title
-      %label Title
-      = f.text_field :name, :class => 'textbox'
-    %p.title
-      %label Description
-      = f.text_area :caption, :class => 'textarea'
-    %p.title
-      %label Select Assets For Gallery
-    .asset-list-container
-      - Asset.all.each do |asset|
-        .asset-list-item-container
-          .asset-list-item
-            = image_tag(asset.thumbnail(:thumbnail))
-            %h5= asset.title
-            - if @gallery.gallery_items.exists?(:asset_id => asset.id)
-              = check_box "checked", asset.id, {:checked => true}
-            - else
-              = check_box "checked", asset.id
-
-
-  %p.buttons
+  #gallery_panel
+    .form-area
+
+      %p.title
+        %label Title
+        = f.text_field :name, :class => 'textbox'
+
+      .drawer
+        .drawer_contents#attributes
+          %table.fieldset
+            %tr
+              %th.label
+                %label Description
+              %td.field= f.text_area :caption, :class => 'textarea'
+        .drawer_handle
+          %a.toggle{:href=>'#attributes', :rel=>"toggle[attributes]", :class=>"#{(meta_errors? ? 'less' : 'more')}"}= meta_label
+
+      %p.title
+        %label Selected Assets <small>(Drag around for ordering)</small>
+        %ul.asset-list-container#gallery_items= render :partial => 'items', :locals => { :items => @items }
+
+  #assets_panel
+    %p.title#asset-selection
+      %label Assets Overview
+      %span.asset_filters
+        - form_tag(admin_assets_path,:id => 'filesearchform', :method => 'get') do
+          %input{ :type => "search", :id => "search", :name => "search" , :value => params[:search] }
+          = observe_field 'search',  :frequency => 1, :url =>  { :controller => 'galleries', :action=> 'search' }, :method => 'get', :with => "'search=' + escape(value) + '&id=' + #{@gallery.id}"
+    %ul.asset-list-container#asset_items= render :partial => 'assets', :locals => { :assets => @assets }
+
+  %p.note Drag your images to the Selected Assets area
+
+  %p.buttons#submit_buttons
     - button_text = @gallery.new_record? ? 'Create' : 'Save Changes'
     = submit_tag button_text, :class => 'button'
     or
     = link_to 'Cancel', admin_galleries_url
+
+  #routes{:style => 'display:none'}
+    = hidden_field_tag 'admin_gallery_items_path', admin_gallery_items_path(@gallery)
+    = hidden_field_tag 'admin_gallery_items_sort_path', admin_gallery_items_sort_path(@gallery)
+