You will find some usefull answer here: http://www.nabble.com/How-to-set-up-dependant-dropdowns-in-form-td20907379.html
Themselves wrote: > > Phew. Big title. > > I'm currently building a large scale application in Zend + Dojo, and with > it > being so new, I'm assuming I'm one of the first to attempt such > undertaking. > I have built it using Matthew Weier O'Phinney's Pastebox > app<http://weierophinney.net/matthew/archives/189-Pastebin-app-and-conference-updates.html>as > an example of the underlying MVC, and extended it to support accordian > navigation, a heavily tabbed interface, JS onLoad for lazy-loaded content > (it's all about WHERE you load it), XHR posts, extensive use of dojox > grids > (with AJAX search), it is a pretty full scale application so far, and it's > all built in a very clean MVC fashion which I'm quite proud of. Now > though, > I'm up to one of the final stumbling blocks, and that is trying to AJAX up > drop down selects built using Zend_Dojo_Form where there are dependencies, > i.e., a select needs to be filled appropriately depending on the value of > a > parent select - a classic example being a Country select that changes the > State select options. > > It is very simple indeed to add AJAX options to a single select, simply by > giving the ComboBox / FilteringSelect a dojox data store and a searchAttr > (although I can't see how to have an id => value pair, the form only > submits > values so far...), however, I can't find any examples on the Internet of > people building dependent select boxes in Zend + Dojo. > > There's also a possible issue with the $form->populate method, meaning > when > we call the edit action in our controller, if too much of the logic that > controls the multiple select boxes is client side, the populate method is > going to act pretty weirdly. > > Has anyone managed to build something like this yet? I know the Zend + > Dojo > combination is very new, and therefore not many examples of code are out > there yet, but this sort of functionality is pretty fundamental for modern > applications. What I'd like to do is solve this problem in a really clean, > standard Zend MVC way once and for all, and post the results on the > Interwebs for everyone to use. > > As a starting point, I guess I should outline a list of ideal qualities in > such a solution: > > > - Uses basic Zend MVC layout, i.e. actions in a controller, separate > form > in the model > - Form is built primarily in Zend_Dojo_Form and can use Dijit controls > - The options in the select submit the id of the record, not the > display > value. > - in the "edit" action of your controller, the $form->populate method > functions correctly. > - Ideally the data sources for the selects is a > dojox.data.QueryReadStore > that reads from a URL in the MVC structure that returns JSON (i.e. > 'url' => > '/clients/list-data/format/ajax'), this actually works by default in > > Pastebox<http://weierophinney.net/matthew/archives/189-Pastebin-app-and-conference-updates.html> > - The Javascript for controlling the form's onChange is able to be > included in a single <script type="dojo/connect" event="onLoad"> > > > That last part is important, as the advanced interfaces it's possible to > build with Dijit layout tools are capable of XHR loading page content as > they're going, meaning we have to be able to load the JS up front and not > embed it on the form we're pulling in. > > If anyone is working on similar functionality or wants to contact me > off-list to help build a demonstration version to, my email address is > themselves at gmail dot com. Sorry for such a long post! > > -- View this message in context: http://www.nabble.com/AJAX-enabling-of-Zend-%2B-Dojo-forms%2C-and-populating-Select-dependencies-in-an-MVC-environment%2C-e.g.-Country---State-selects-tp20206675p22483123.html Sent from the Zend Framework mailing list archive at Nabble.com.
