CiviCRM Community Forums (archive)

I want to set up membership payment options for:
1) a single payment
2) 4 fixed quarterly payments
3) 10 fixed monthly payments  or
4) 20 fixed monthly payments.

I am using civiContribute page definition and do not see how I can specify the number and interval of the payments.  When I enable recurring payments, the interval and number of payments are fill-in boxes for the new member to complete.  Ideally, when a person chooses a payment option, the number of payments, the amount and the interval would be automatically defined.  Please advise how I can control this.

Thanks, Carole

you can do this via hooks:

1. you can freeze a payment field and basically make that the only option

2. you can set the period to be quarterly or monthly via the UI

3. the 4/10/20 can be checked via a validation rules

the following piece of code freezes a single payment and recurring interval and month. You can go this route and do 3 contribution pages, one for each of your cases

Code: [Select]

function civitest_civicrm_buildForm( $formName, &$form ) {
    if ( $formName == 'CRM_Contribute_Form_Contribution_Main' &&
         $form->getVar( '_id' ) == 1 ) {
        // 358 is the "option value id" of the only  value in the amount table,                                                                                                                           
        // you can get this id, by doing a view source on the HTML                                                                                                                                       
        $defaults = array( 'amount'   => 358,
                           'is_recur' => 1,
                           'frequency_interval' => 1,
                           'frequency_unit' => 'month',
                           'installments' => 12 );
        $form->setDefaults( $defaults );

        // also freeze these elements                                                                                                                                                                     
        $elementNames = array_keys( $defaults );
        foreach ( $elementNames as $element ) {
            $elm =& $form->getElement( $element );
            $elm->freeze( );
        }
    }
}


Where should this code be placed?

Thanks for the help. For future reference, here is the end code I used. I created a module with a .info and a .module file per the instructions. In the .module file I put this code
<?php

function civicrm_civicrm_buildForm( $formName, &$form ) {
    if ( $formName == 'CRM_Contribute_Form_Contribution_Main' &&
         $form->getVar( '_id' ) == 1 ) {
        // 268 is the "option value id" of the only  value in the amount table,                                                                                                                           
        // you can get this id, by doing a view source on the HTML                                                                                                                                        
        $defaults = array( 'amount'   => 268,
                           'is_pledge' => 1,
                           'pledge_frequency_interval' => 1,
                           'pledge_frequency_unit' => 'month',
                           'pledge_installments' => 12 );
        $form->setDefaults( $defaults );

        // also freeze these elements                                                                                                                                                                     
        $elementNames = array_keys( $defaults );
        foreach ( $elementNames as $element ) {
            $elm =& $form->getElement( $element );
            $elm->freeze( );
        }
    }
}


(Again) after talking with Lobo on irc:

u should be able to do it in one page
and tweak the pledge fields to only allow values you want in the form elements (via hook_buildForm)
and use hook_validate to ensure that the selection is valid
or you can use javascript to do so