4

I often find myself writing calls to CRM_Utils_Redirect in my postProcess methods.

But in core code I don't see this. I see the use of methods like $session->replaceUserContext and postProcess functions that end seemingly without telling me where to go next.

I feel like CiviCRM is often clever enough to go to load different pages on form submission based on where you came from. I have no solid proof of that but lets give Civi the benefit of the doubt on that one :)

I'm guessing there is a structure somewhere that is telling CiviCRM what page to load next but I have failed to spot what that is.

I'm interested in the canonical way that CiviCRM does this (if there is a canoncial way) and knowing how legacy that is, and also what I should be doing.

If anyone could enlighten me, I'd be grateful :)

PS. I am not so interested in "you should write that in angular" enlightenment, at least not in the answer to this question.

3

Here is what I do in a page:

$session = CRM_Core_Session::singleton();
$session->pushUserContext(CRM_Utils_System::url('civicrm/pumexpenseclaims/page/claimlevel', 'reset=1', true));

Then in the form I do nothing in the postProcess. The only thing I take into consideration is when I press something like delete on the page where I take an action but do not need a form. If that is the case I tend to do this:

$session = CRM_Core_Session::singleton();
CRM_Utils_System::redirect($session->readUserContext());

Mind you, it could well be that this pattern no longer works in 4.7? What are the issues you run in to?

3

Use the built in button types and corresponding CRM_Core_QuickForm_Action_* classes that are invoked when those buttons are clicked.

For example, clicking on a button created with

$this->addButtons(array(
  array(
    'type' => 'submit',
    'name' => ts('Submit'),
    'isDefault' => TRUE,
  ),
));

Will call CRM_Core_QuickForm_Action_Submit->perform() which redirects you to the value of $form->controller->_destination (and if $form->controller->_destination is not set, will display the form again).

So in the simplest case, you can just add a line along the lines of the following to your form:

$this->controller->_destination = CRM_Utils_System::url('civicrm/something', 'reset=1');

Probably the best way to understand the other actions is to have a look at the perform() methods in the CRM_Core_QuickForm_Action_Submit_* classes.

GinkgoFJG's answer (and possibly Erik's) works when the button type is 'done', which makes sense when you have a look at the comments the inline code documentation for CRM_Core_QuickForm_Action_Done->perform().

// Processes the request.
// [...] validate the page
// and if success, call post process
// when done processing pop to user context
  • Michael, you did quite some investigation...but is not totally clear to me. So what do I do if I want to 'interrupt' the form processing and end it what do I do exactly? – ErikH - CiviCooP Aug 1 '17 at 15:24
  • @ErikH-CiviCooP - hmm, would you like to flesh out some details - maybe as a new question? - and I'll do my best to answer as I think that the answer probably depends on what exactly you mean by 'interrupt' and 'end' :) – michaelmcandrew Aug 1 '17 at 16:57
  • will do. I have a solution but it might be interesting for other visitors too :-) – ErikH - CiviCooP Aug 2 '17 at 7:25
  • Here is my new question: civicrm.stackexchange.com/questions/19743/… – ErikH - CiviCooP Aug 2 '17 at 7:57
1

I tend to set the userContext in my page, which will then make my form return to where I wanted it. Does that make sense?

  • I did try doing that, but didn't get it working - do you want to expand on your answer with an example? stackexchange will reward your quality answer handsomely, I am sure ;) – michaelmcandrew Feb 2 '17 at 10:49
  • 1
    If you could also explain if there is anything to take into account when the page is loaded via a pop up vs normally, many riches will flow your way... – michaelmcandrew Feb 2 '17 at 10:53
1

Here's how Volunteer does it:

  • This didn't work for me initially. I dug around in a few of the relevant classes CRM_Core_Controller, HTML_QuickForm_Controller, CRM_Core_QuickForm_Action and CRM_Core_QuickForm_Action_*` * including *=Submit and *=Done and found that this approach works when the type of the submit button is 'done'. – michaelmcandrew Mar 31 '17 at 8:57

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