ColdFusion 8: Screencast of cfAjaxProxy, the Tag That Blurs The Line Between CF and JS
ColdFusion 8The cfAjaxProxy tag creates all the JavaScript needed so you can call functions in a cfc directly from JavaScript. This 3 minute screencast walks through a simple, yet powerful, example.
This was also the first time I played with the Derby database examples provided by CF (and found out its case sensative!). The code in the screencast is below.
index.cfm:
Artists.cfc:
artists.js:
Brian Swartzfager said:
Another excellent demo, Sam!
I think cfajaxproxy is really going to make it easy for folks to write their validation code once (in CFCs) and then leverage that code for both client-side validation (using cfajaxproxy) and server-side validation (to handle cases where users have JavaScript turned off).
I think cfajaxproxy is really going to make it easy for folks to write their validation code once (in CFCs) and then leverage that code for both client-side validation (using cfajaxproxy) and server-side validation (to handle cases where users have JavaScript turned off).
Sam Farmer said:
Thanks!
I think form validation is an interesting potential for cfajaxproxy but would want to do some performance tests first. Users often expect validation to happen instantly
I think form validation is an interesting potential for cfajaxproxy but would want to do some performance tests first. Users often expect validation to happen instantly
Ilir said:
Sam, I would like to ask you something about incorporating the above code with validate_form javascript, so beside validating for required fields, will check if the name already exists in the database. The wall I am hitting is that the validate_form returns a true if all required fields are filled out, and false if not.
how can I have the displayCount() for example return false to validate_form() javascript?
Any help will be appreciated.
thanks,
Ilir
how can I have the displayCount() for example return false to validate_form() javascript?
Any help will be appreciated.
thanks,
Ilir
.: HIDE REPLIES :.
samfarmer said:
Ilir: Take a look at how isNewName works since that is checking to see if the name exists in the database and tie that in with the other form validation code you have. HTH.
samfarmer said:
Ilir: Use the contact form to get in touch with me and then via email we should be able to get this worked out.
Loading....