From 7755003386de4c2492a59cd6b8032b789a52743c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Hojtsy?= <gabor@hojtsy.hu>
Date: Fri, 23 Nov 2007 12:32:21 +0000
Subject: #194277 by catch: allow contribs to override taxonomy selector forms
 (with improved performance)

---
 modules/taxonomy/taxonomy.admin.inc | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

(limited to 'modules/taxonomy/taxonomy.admin.inc')

diff --git a/modules/taxonomy/taxonomy.admin.inc b/modules/taxonomy/taxonomy.admin.inc
index 96ef32f15..97f1300c3 100644
--- a/modules/taxonomy/taxonomy.admin.inc
+++ b/modules/taxonomy/taxonomy.admin.inc
@@ -275,17 +275,23 @@ function taxonomy_form_term(&$form_state, $vocabulary, $edit = array()) {
     '#collapsed' => TRUE,
   );
 
-  $parent = array_keys(taxonomy_get_parents($edit['tid']));
-  $children = taxonomy_get_tree($vocabulary->vid, $edit['tid']);
+  // taxonomy_get_tree and taxonomy_get_parents may contain large numbers of
+  // items so we check for taxonomy_override_selector before loading the
+  // full vocabulary. Contrib modules can then intercept before
+  // hook_form_alter to provide scalable alternatives. 
+  if (!variable_get('taxonomy_override_selector', FALSE)) {
+    $parent = array_keys(taxonomy_get_parents($edit['tid']));
+    $children = taxonomy_get_tree($vocabulary->vid, $edit['tid']);
+
+    // A term can't be the child of itself, nor of its children.
+    foreach ($children as $child) {
+      $exclude[] = $child->tid;
+    }
+    $exclude[] = $edit['tid'];
 
-  // A term can't be the child of itself, nor of its children.
-  foreach ($children as $child) {
-    $exclude[] = $child->tid;
+    $form['advanced']['parent'] = _taxonomy_term_select(t('Parents'), 'parent', $parent, $vocabulary->vid, t('Parent terms') .'.', 1, '<'. t('root') .'>', $exclude);
+    $form['advanced']['relations'] = _taxonomy_term_select(t('Related terms'), 'relations', array_keys(taxonomy_get_related($edit['tid'])), $vocabulary->vid, NULL, 1, '<'. t('none') .'>', array($edit['tid']));
   }
-  $exclude[] = $edit['tid'];
-
-  $form['advanced']['parent'] = _taxonomy_term_select(t('Parents'), 'parent', $parent, $vocabulary->vid, t('Parent terms') .'.', 1, '<'. t('root') .'>', $exclude);
-
   $form['advanced']['synonyms'] = array(
     '#type' => 'textarea',
     '#title' => t('Synonyms'),
-- 
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