taxonomy_form_alter

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Definition

taxonomy_form_alter($form_id, &$form)
modules/taxonomy.module, line 598

Description

Generate a form for selecting terms to associate with a node.

Code

<?php
function taxonomy_form_alter($form_id, &$form) {
  if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id) {
    $node = $form['#node'];

    if (!isset($node->taxonomy)) {
      if ($node->nid) {
        $terms = taxonomy_node_get_terms($node->nid);
      }
      else {
        $terms = array();
      }
    }
    else {
      $terms = $node->taxonomy;
    }

    $c = db_query(db_rewrite_sql("SELECT v.* FROM {vocabulary} v INNER JOIN {vocabulary_node_types} n ON v.vid = n.vid WHERE n.type = '%s' ORDER BY v.weight, v.name", 'v', 'vid'), $node->type);

    while ($vocabulary = db_fetch_object($c)) {
      if ($vocabulary->tags) {
        $typed_terms = array();
        foreach ($terms as $term) {
          // Extract terms belonging to the vocabulary in question.
          if ($term->vid == $vocabulary->vid) {

            // Commas and quotes in terms are special cases, so encode 'em.
            if (preg_match('/,/', $term->name) || preg_match('/"/', $term->name)) {
              $term->name = '"'.preg_replace('/"/', '""', $term->name).'"';
            }

            $typed_terms[] = $term->name;
          }
        }
        $typed_string = implode(', ', $typed_terms) . (array_key_exists('tags', $terms) ? $terms['tags'][$vocabulary->vid] : NULL);

        if ($vocabulary->help) {
          $help = $vocabulary->help;
        }
        else {
          $help = t('A comma-separated list of terms describing this content.  Example: funny, bungee jumping, "Company, Inc.".');
        }
        $form['taxonomy']['tags'][$vocabulary->vid] = array('#type' => 'textfield',
          '#title' => $vocabulary->name,
          '#description' => $help,
          '#required' => $vocabulary->required,
          '#default_value' => $typed_string,
          '#autocomplete_path' => 'taxonomy/autocomplete/'. $vocabulary->vid,
          '#weight' => $vocabulary->weight,
          '#maxlength' => 255,
        );
      }
      else {
        // Extract terms belonging to the vocabulary in question.
        $default_terms = array();
        foreach ($terms as $term) {
          if ($term->vid == $vocabulary->vid) {
            $default_terms[$term->tid] = $term;
          }
        }
        $form['taxonomy'][$vocabulary->vid] = taxonomy_form($vocabulary->vid, array_keys($default_terms), $vocabulary->help);
        $form['taxonomy'][$vocabulary->vid]['#weight'] = $vocabulary->weight;
        $form['taxonomy'][$vocabulary->vid]['#required'] = $vocabulary->required;
      }
    }
    if (isset($form['taxonomy'])) {
      $form['taxonomy'] += array('#type' => 'fieldset', '#title' => t('Categories'), '#collapsible' => TRUE, '#collapsed' => FALSE, '#tree' => TRUE, '#weight' => -3);
    }
  }
}
?>