[Vtigercrm-developers] What is the best practice to create Extensions Store compatible vtiger 6.1 custom module?

[SIAM Translations]

Got impression that extension store will be interesting place to surf :-)

Andrew



On Mon, Jul 14, 2014 at 3:47 PM, Holbok István <holbok at gmail.com> wrote:

>  Dear Vtiger Team,
>
> I am in the vtiger custom module development and there is an interesting
> question:
>
> This Custom module is related to the (standard) Contacts module and when
> some fields were changed in the Contacts module record, accordingly some
> change should be done in the related Custom module record.
>
> It is easy to manage with the following:
> (1) Register an Eventhandler for the Contacts module (note: there is not
> any event registered for the Contacts module in the standard install of
> vtiger 6.1. SVN 14164)
>
> Vtiger_Event::register(
>      'Contacts','vtiger.entity.aftersave',
>      'ContactsHandler','modules/Contacts/ContactsHandler.php'
> );
> Vtiger_Event::register(
>     'Contacts','vtiger.entity.beforesave',
>     'ContactsHandler','modules/Contacts/ContactsHandler.php'
> );
>
> This action can be done during postinstall action of the Custom module.
>
> And
> (2) Append the already existing 'modules/Contacts/ContactsHandler.php'
> file with the following class:
> class ContactsHandler extends VTEventHandler {
>      function handleEvent($eventName, $data) {
>              if($eventName == 'vtiger.entity.beforesave') {
>                      // Entity is about to be saved, take required action
>              }
>              if($eventName == 'vtiger.entity.aftersave') {
>                      // Entity has been saved, take next action
>              }
>      }
> }
>
> This will work without any doubt but in this way I have to modify a core
> file: 'modules/Contacts/ContactsHandler.php' and it could make some
> troubles for the Estension Store Custom module.
>
> *The Question is:* To avoid modifying core files, will it work, if I will
> put the custom Contacts handler into Custom module directory?
>
> The step 1, registering the eventhandler file in an other place:
> Vtiger_Event::register(
>      'Contacts','vtiger.entity.aftersave',
>      'Contacts*Custommodule*Handler','modules/*Custommodule*/Contacts
> *Custommodule*Handler.php'
> );
> Vtiger_Event::register(
>     'Contacts','vtiger.entity.beforesave',
>     'Contacts*Custommodule*Handler','modules/*Custommodule*/Contacts
> *Custommodule*Handler.php'
> );
>
> The step 2, create a handler file in the Custommodule directory:
>
> modules/*Custommodule*/Contacts*Custommodule*Handler.php
> <?php class Contacts*Custommodule*Handler extends VTEventHandler {
>      function handleEvent($eventName, $data) {
>              if($eventName == 'vtiger.entity.beforesave') {
>                      // Entity is about to be saved, take required action
>                     // Some code to handle Contacts related actions in
> the related module.
>              }
>              if($eventName == 'vtiger.entity.aftersave') {
>                      // Entity has been saved, take next action
>                     // Some code to handle Contacts related actions in
> the related module.
>              }
>      }
> }
> ?>
>
> Summary: Can I register an event handler with any name in any place?
> Will it triggered on a proper time?
>
> Kindest regards:
> István
>
> --
> üdvözlettel:
>
> *Holbok István*
>
> +3670-342-0900
> *e-mail:* holbok at gmail.com
> *SkyPe:* holboki
>
>
> _______________________________________________
> http://www.vtiger.com/
>
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