When installing a package, maybe you need to add some buttons to a modules detail or edit view? Maybe you'd like to add your button without, you know, wiping out existing customization to the system's layout? Here's how you'd do that with a post_install script. Simply place this within your module's directory at /scripts/post_install.php, zip it…

post_install.php

<?php
function post_install(){
  // define our new button that will copy into detailviewdefs.php
  $button = array(
    'customCode' => '<input type=\'button\' title=\'Create Payments\' onclick=\'this.form.action.value=\\\'CreatePayments\\\';\' />',
    'sugar_html' => array(
      'type' => 'submit',
      'value' => 'Create Payments',
      'htmlOptions' => array(
        'class' => 'button',
        'id' => 'CreatePaymentsButton',
        'title' => 'Create Payments',
        'onclick' => 'this.form.action.value=\'CreatePayments\';',
      ),
    ),
  );

  // load and use ParserFactory to add the button to the current layout
  require_once('modules/ModuleBuilder/parsers/ParserFactory.php');
  $parser = ParserFactory::getParser('detailview', 'Contacts');
  array_push($parser->_viewdefs['templateMeta']['form']['buttons'], $button);
  $parser->handleSave(false);
}