Markror2009 Markror2009 wrote:
Hi all, I start to use ruby on rails with Extjs, in a controller i put this code respond_to do |format| format.html format.ext_json { render :json => Collection.find(:all).to_ext_json(:class => Collection) } end and in view i put this code
<div id="collection-grid"></div> <%= ext_datastore_for 'Collection' %> <% javascript_tag do -%> var collection_column_model = new Ext.grid.ColumnModel([ {id: 'id', header: "#", width: 20, dataIndex: 'id'}, {header: 'name', dataIndex: 'collection[name]'}, {header: 'description', dataIndex: 'collection[description]'} ]); <% end -%> <%= ext_grid_for 'Collection', :element => 'collection-grid' %>
in the browser i have grid but without data. any one can help me for this. Thank's
I write this mini-tutorial to you: We will using the convencional way.
Requirements: nifty-generators (install using gem install nifty-generators)
1. Create the application: rails contacts 2. Create the database: rake db:create 3. Create layout using nifty_layout: script/generate nifty_layout 4. Create our Contact using nifty_scaffold: script/generate nifty_scaffold name:string phone:string email:string 5. Create the table contacts: rake db:migrate
In config/initializers/new_rails_defaults.rb change following:
ActiveRecord::Base.include_root_in_json = true
To
ActiveRecord::Base.include_root_in_json = false
Open your layout in app/views/layout/application.html.erb and add the follow:
<%= stylesheet_link_tag '/ext/resources/css/ext-all' %> <%= javascript_include_tag '/ext/adapter/ext/ext-base' %> <%= javascript_include_tag '/ext/ext-all' %>
I'm assume your ext folder is in public.
Now open your contacts_controller and change the action index to:
def index @contacts = Contact.all
respond_to do |format| format.html format.json { render :json => @contacts.to_json } end end
Open the app/views/contacts/index.html.erb and change to:
<div id="grid"></div> <script> function index(){ var store = new Ext.data.JsonStore({ url: '/contacts.json', id: 'store', idProperty: 'id', fields: [ 'id', 'name', 'email', 'phone'] });
store.load();
var grid = new Ext.grid.GridPanel({ title: 'Contacts', width: 400, height: 300, frame: true, renderTo: 'grid', store: store, columns: [ { header: 'NAME', dataIndex: 'name', sortable: true }, { header: 'EMAIL', dataIndex: 'email', sortable: true }, { header: 'PHONE', dataIndex: 'phone', sortable: true } ] }); }
Ext.onReady(index()); </script
Run your server by script/server and fun.
Atc., Kirk Patrick