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Issue #37: Add automatic path support with patterns. #46

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Issue #37: Add automatic path support with patterns. #46

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114 changes: 114 additions & 0 deletions forum.path.inc
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Original file line number Diff line number Diff line change
@@ -0,0 +1,114 @@
<?php
/**
* @file
* Path alias patterns.
*/

/**
* Implements hook_pathauto() for forum module.
*/
function forum_path_info() {
$vocabulary_name = config_get('forum.settings', 'forum_nav_vocabulary');

$info['forum'] = array(
'entity type' => 'taxonomy_term',
'label' => t('Forum category'),
'pattern label' => t('URL alias pattern for forum categories'),
'pattern default' => 'forum/[term:name]',
'type delete callback' => 'forum_path_delete_callback',
'batch update callback' => 'forum_pathauto_bulk_update_batch_process',
'source prefix' => 'forum/',
'batch file' => 'forum.path.inc',
'batch file path' => backdrop_get_path('module', 'forum'),
);

$languages = array();
if (module_exists('language')) {
$languages = array(LANGUAGE_NONE => (object) array(
'name' => t('Language neutral'),
'langcode' => LANGUAGE_NONE,
)) + language_list();

// Update the pattern info for multiple options.
$info['forum']['pattern label'] = t('Default URL alias pattern for forum categories');
$info['forum']['pattern description'] = t('Fallback pattern for all forum categories without a specific URL alias pattern below.');
$info['forum']['pattern items'] = array();
$info['forum']['pattern items label'] = t('URL alias patterns for specific languages');

$vocabulary = taxonomy_vocabulary_load($vocabulary_name);
if (count($languages) && !empty($vocabulary->language)) {
$info['forum']['pattern items'][$vocabulary_name] = t('Default URL alias pattern for all forum categories (any language)');
foreach ($languages as $langcode => $language) {
$info['forum']['pattern items'][$vocabulary_name . '_' . $langcode] = t('Forum categories in %language', array('%language' => $language->name));
}
}
}

return $info;
}


/**
* Callback to delete aliases for forum terms
*/
function forum_path_delete_callback() {
$vocabulary = config_get('forum.settings', 'forum_nav_vocabulary');

$query = db_select('forum_data', 'td');
$query->addField('td', 'tid');
$query->condition('td.vocabulary', $vocabulary);
$tids = $query->execute()->fetchCol();

$sources = array();
foreach ($tids as $tid) {
$sources[] = 'forum/' . $tid;
}

$query = db_delete('url_alias');
$query->condition('source', $sources, 'IN');
$query->execute();
}

/**
* Batch processing callback; Generate aliases for forum categories.
*/
function forum_pathauto_bulk_update_batch_process(&$context) {
if (!isset($context['sandbox']['current'])) {
$context['sandbox']['count'] = 0;
$context['sandbox']['current'] = 0;
}

$query = db_select('forum_data', 'td');
$query->leftJoin('url_alias', 'ua', "CONCAT('forum/', td.tid) = ua.source");
$query->addField('td', 'tid');
$query->isNull('ua.source');
$query->condition('td.tid', $context['sandbox']['current'], '>');
$query->condition('td.vid', variable_get('forum_nav_vocabulary', ''));
$query->orderBy('td.tid');
$query->addTag('pathauto_bulk_update');
$query->addMetaData('entity', 'forum');

// Get the total amount of items to process.
if (!isset($context['sandbox']['total'])) {
$context['sandbox']['total'] = $query->countQuery()->execute()->fetchField();

// If there are no nodes to update, the stop immediately.
if (!$context['sandbox']['total']) {
$context['finished'] = 1;
return;
}
}

$query->range(0, 25);
$tids = $query->execute()->fetchCol();

pathauto_forum_update_alias_multiple($tids, 'bulkupdate');
$context['sandbox']['count'] += count($tids);
$context['sandbox']['current'] = max($tids);
$context['message'] = t('Updated alias for forum @tid.', array('@tid' => end($tids)));

if ($context['sandbox']['count'] != $context['sandbox']['total']) {
$context['finished'] = $context['sandbox']['count'] / $context['sandbox']['total'];
}
}