Update a page from the database as changes happen

rubyonrails-talk
1

Hello all,

Could someone point me towards a recipe for getting the content of a page to update based on changes in the database (versus updates to controls on the page, for example), please?

Ideally I'd like fields on the page to change colour as activity occurs asynchronously in the database, so perhaps updates would happen in response to a timed event on the server side.

Thanks in advance,

Henry

2

Look at periodically_call_remote.

http://api.rubyonrails.org

-Bill

Henry Collingridge wrote:

3

If you already know when stuff is to change without re-querying the db you can use simple javascript:

var seconds = 100 document.content.fieldFoo.value = '100' function display() {     document.content.fieldFoo.value = seconds     if( seconds > 0 ) seconds -= 1     if( seconds <= 0 ) window.location.reload( true );     setTimeout( 'display()', 1000 ) } display()