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<?php
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// $Id: moduleweight.module,v 1.4 2007/05/18 15:06:19 darrenoh Exp $
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/**
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* Implementation of hook_help().
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*/
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function moduleweight_help($section) {
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$output = '';
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switch ($section) {
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case 'admin/help#moduleweight':
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$output .= '<p>'. t('Drupal assigns each module a weight. For most operations involving any module that defines a particular hook, the modules are invoked in order first by weight, then by name.') .'</p>';
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$output .= '<p>'. t('This module adds a weight column to the modules table at !modules, allowing weights to be viewed and edited. Once activated, a weight column appears on the modules table. To change a module weight, edit its value and press "Save configuration". Any user who can submit the !modules form will be able to change module weights.', array('!modules' => l('admin/build/modules', 'admin/build/modules'))) .'</p>';
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break;
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}
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return $output;
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}
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/**
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* Implementation of hook_form_alter().
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*
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* Alter the system_modules form to include fields for module weight. Use
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* #pre_render to set #theme after drupal_get_form() does. Use #submit to
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* get invoked when the form is submitted.
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*/
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function moduleweight_form_alter($form_id, &$form) {
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switch ($form_id) {
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case 'system_modules':
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$result = db_query("SELECT name, weight FROM {system} WHERE type = 'module'");
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while ($row = db_fetch_object($result)) {
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if (isset($form['name'][$row->name])) {
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$form['weight'][$row->name] = array(
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'#type' => 'textfield',
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'#size' => 3,
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'#default_value' => $row->weight
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);
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}
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}
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$form['#theme'] = 'moduleweight_system_modules';
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$form['weight']['#tree'] = TRUE;
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foreach ($form['name'] as $module => $values) {
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$modules[$module] = $values['#value'];
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}
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$form['weight']['#validate'] = array('_moduleweight_validate' => array('names' => $modules));
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// Do my #submit before system.module's so all the rebuilding
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// operations in system_module_submit use the new weights.
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$form['#submit'] = array('_moduleweight_submit' => array()) + (array) $form['#submit'];
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break;
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}
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}
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/**
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* Make sure each module weight is a numeric value.
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*/
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function _moduleweight_validate($args) {
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foreach ($args['#post']['weight'] as $module => $weight) {
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if (!is_numeric($weight)) {
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form_set_error("weight][$module", t(
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'The !module module weight must be a number.',
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array('!module' => $args['#validate']['_moduleweight_validate']['names'][$module])
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));
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}
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}
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}
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/**
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* Submit module weights.
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*/
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function _moduleweight_submit($form_id, &$form_values) {
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foreach ($form_values['weight'] as $module => $weight) {
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db_query("UPDATE {system} SET weight = %d WHERE type = 'module' and name = '%s'", $weight, $module);
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}
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}
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/**
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* Custom theme function for the system_modules form.
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*/
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function theme_moduleweight_system_modules($form) {
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if (isset($form['confirm'])) {
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return drupal_render($form);
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}
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$header = array(t('Enabled'));
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if (module_exists('throttle')) {
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$header[] = t('Throttle');
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}
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$header[] = t('Weight');
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$header[] = t('Name');
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$header[] = t('Version');
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$header[] = t('Description');
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$modules = $form['validation_modules']['#value'];
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foreach ($modules as $module) {
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if (!isset($module->info['package']) || !$module->info['package']) {
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$module->info['package'] = t('Other');
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}
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$packages[$module->info['package']][$module->name] = $module->info;
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}
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ksort($packages);
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$output = '';
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foreach ($packages as $package => $modules) {
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$rows = array();
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foreach ($modules as $key => $module) {
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$row = array();
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$row[] = array('data' => drupal_render($form['status'][$key]), 'align' => 'center');
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if (module_exists('throttle')) {
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$row[] = array('data' => drupal_render($form['throttle'][$key]), 'align' => 'center');
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}
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$row[] = drupal_render($form['weight'][$key]);
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$row[] = '<strong>'. drupal_render($form['name'][$key]) .'</strong>';
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$row[] = drupal_render($form['version'][$key]);
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$row[] = array('data' => drupal_render($form['description'][$key]), 'class' => 'description');
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$rows[] = $row;
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}
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$fieldset = array(
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'#title' => t($package),
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'#collapsible' => TRUE,
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'#collapsed' => ($package == 'Core - required'),
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'#value' => theme('table', $header, $rows, array('class' => 'package')),
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);
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$output .= theme('fieldset', $fieldset);
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}
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$output .= drupal_render($form);
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return $output;
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}
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