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
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