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<?php
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// $Id: taxonomy_quick_find.module,v 1.3.2.10 2008/09/17 15:43:50 njt1982 Exp $
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/**
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* @file
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* This module provides customizable blocks which pickup the terms for the current node and allow a visitor to browse other content by similar nodes
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*/
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/**
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* Implementation of hook_help().
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*/
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function taxonomy_quick_find_help($path, $arg) {
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switch ($path) {
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case 'admin/settings/taxonomy_quick_find' :
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return t('Configure the blocks provided by this module here. You can add new blocks or remove existing ones from here too. Each block can be configured to provide suggestions for specific content types.');
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}
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}
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/**
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* Implementation of hook_menu().
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*/
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function taxonomy_quick_find_menu() {
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$items = array();
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$items['admin/settings/taxonomy_quick_find'] = array(
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'title' => 'Taxonomy Quick Find',
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'description' => 'Configure provided blocks',
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'page callback' => 'taxonomy_quick_find_admin',
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'access callback' => 'user_access',
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'access arguments' => array('administer taxonomy'),
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);
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$items['taxonomy_quick_find'] = array(
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'page callback' => 'taxonomy_quick_find_json',
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'access callback' => 'user_access',
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'access arguments' => array('access content'),
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'type' => MENU_CALLBACK,
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);
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return $items;
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}
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function taxonomy_quick_find_theme($existing, $type, $theme, $path) {
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return array(
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'taxonomy_quick_find_admin_configure_block_node_types' => array(
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'arguments' => array('form' => NULL),
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)
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);
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}
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/**
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* Administation page. Provides a list of existing blocks along with a form to add new ones.
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*
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* @param string $op
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* The operation being performed. Default to 'list', but can be 'delete'.
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*
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* @param string $delta
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* Only used when $op = 'delete. Defines which block is being deleted.
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*
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* @return string
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* Rendered Output
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*/
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function taxonomy_quick_find_admin($op = 'list', $delta = NULL) {
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$v = taxonomy_get_vocabularies();
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if (count($v) == 0) {
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drupal_set_message(t('You must have created at least 1 vocabulary'), 'error');
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return '';
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}
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$blocks = variable_get('taxonomy_quick_find_blocks', array());
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if ($op == 'delete') {
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if (!is_numeric($delta) || !isset($blocks[$delta])) {
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return drupal_not_found();
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}
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return drupal_get_form('taxonomy_quick_find_admin_confirm_delete', $delta);
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}
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$nodetypes = node_get_types('names');
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$rows = array();
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foreach ($blocks as $delta => $block) {
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if (empty($block['types'])) {
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$blocktypes = array('<em>'. t('None Set') .'</em>');
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}
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else {
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$blocktypes = array_keys($block['types']);
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array_walk($blocktypes, '_taxonomy_quick_find_walk_node_types', array('nodetypes' => node_get_types('names'), 'block' => $block['types']));
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}
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$row = array();
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$row[] = $block['name'];
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$row[] = theme('item_list', $blocktypes);
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$ops = l(t('edit'), 'admin/build/block/configure/taxonomy_quick_find/'. $delta, array('query' => 'destination=admin/settings/taxonomy_quick_find'));
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$ops .= ' | ';
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$ops .= l(t('delete'), 'admin/settings/taxonomy_quick_find/delete/'. $delta);
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$row[] = $ops;
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$rows[] = $row;
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}
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$output = theme('table', array(t('Title'), t('Configured Types'), t('Ops')), $rows);
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$output .= drupal_get_form('taxonomy_quick_find_admin_configure_block', NULL);
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return $output;
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}
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/**
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* Block delete confirmation form
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*
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* @param string $delta
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* The delta of the block being deleted
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*
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* @return array
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* FAPI structured array
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*/
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function taxonomy_quick_find_admin_confirm_delete(&$form_state, $delta) {
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$form = array();
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$form['delta'] = array(
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'#type' => 'hidden',
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'#value' => $delta
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);
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return confirm_form(
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$form,
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t('Are you sure you want to delete this block?'),
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'admin/settings/taxonomy_quick_find',
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t('Note: This action cannt be undone'),
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t('Delete'),
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t('Cancel')
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);
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}
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/**
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* Submit handler for 'taxonomy_quick_find_admin_confirm_delete' form.
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*/
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function taxonomy_quick_find_admin_confirm_delete_submit($form, &$form_state) {
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$blocks = variable_get('taxonomy_quick_find_blocks', array());
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drupal_set_message(t('Deleted Block: %name', array('%name' => $blocks[ $form_state['values']['delta'] ]['name'])));
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unset($blocks[ $form_state['values']['delta'] ]);
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variable_set('taxonomy_quick_find_blocks', $blocks);
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$form_state['redirect'] = 'admin/settings/taxonomy_quick_find';
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return;
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}
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/**
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* Block configuration/creation form
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*
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* @param string $delta
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* Delta of the block being configured. If NULL, then block is being created.
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*
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* @return array
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* FAPI structured array
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*/
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function taxonomy_quick_find_admin_configure_block(&$form_state, $delta = NULL) {
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if (isset($delta)) {
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$settings = _taxonomy_quick_find_get_block($delta);
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}
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$settings = is_array($settings) ? $settings : array();
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$form = array();
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$form['tqf'] = array(
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'#type' => 'fieldset',
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'#title' => isset($delta) ? t('Block Settings') : t('Add Block'),
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'#tree' => TRUE,
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'#collapsible' => TRUE,
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'#collapsed' => !isset($delta),
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);
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//The Block Name
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$form['tqf']['name'] = array(
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'#title' => t('Block Name'),
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'#type' => 'textfield',
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'#required' => TRUE,
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'#description' => t('Human readable name for this block. This is for reference and <strong>wont</strong> be used as the block\'s title.'),
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'#default_value' => isset($settings['name']) ? $settings['name'] : '',
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);
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//The Node Types container
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$form['tqf']['types'] = array(
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'#type' => 'item',
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'#theme' => 'taxonomy_quick_find_admin_configure_block_node_types',
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'#description' => 'A limit of zero for a node type will disable the node type. Use the weight to control the position of the node type in the block.',
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'#title' => t('Node Types')
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);
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//create a form element for each node type consisting of a 'label' element, a limit textifield and a weight select box
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foreach (node_get_types('names') as $id => $name) {
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$form['tqf']['types'][$id]['label'] = array('#type' => 'markup', '#value' => check_plain($name));
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$form['tqf']['types'][$id]['limit'] = array(
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'#type' => 'textfield',
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'#default_value' => isset($settings['types'][$id]['limit']) ? $settings['types'][$id]['limit'] : 0,
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'#max_length' => 3,
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'#size' => 2,
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);
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$form['tqf']['types'][$id]['weight'] = array(
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'#type' => 'weight',
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'#default_value' => isset($settings['types'][$id]['weight']) ? $settings['types'][$id]['weight'] : 0,
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);
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}
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//Define the checkboxes array for the vocabulary configuration
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$vocabs = array();
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foreach (taxonomy_get_vocabularies() as $v) {
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$vocabs[$v->vid] = $v->name;
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}
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$form['tqf']['vocabs'] = array(
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'#title' => t('Vocabularies'),
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'#type' => 'checkboxes',
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'#description' => t('Check the vocabularies you would like the terms limited to.'),
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'#options' => $vocabs,
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'#default_value' => isset($settings['vocabs']) ? $settings['vocabs'] : array_keys($vocabs),
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);
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//If there is a delta then we are editing on a block configuration, otherwise we are adding
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if (isset($delta)) {
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$form['tqf']['#validate']['_taxonomy_quick_find_block_configure_configure_block_validate'] = array();
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}
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else {
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$form['tqf']['submit'] = array('#type' => 'submit', '#value' => t('Save'));
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}
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//We need a CSS file to control some layout features.
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drupal_add_css(drupal_get_path('module', 'taxonomy_quick_find') .'/taxonomy_quick_find.css');
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return $form;
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}
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/**
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* Theme function for the node type container element of the above form.
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*/
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function theme_taxonomy_quick_find_admin_configure_block_node_types($form) {
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$rows = array();
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foreach (element_children($form) as $key) {
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$row = array();
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$row[] = drupal_render($form[$key]['label']);
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$row[] = drupal_render($form[$key]['limit']);
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$row[] = drupal_render($form[$key]['weight']);
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$rows[] = $row;
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}
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return theme(
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'table',
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array(t('Type'), t('Limit'), t('Weight')),
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$rows,
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array('id' => 'block_tqf_nodetypes')
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);
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}
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/**
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* Validate callback function for the above form. This is only used for EXISTING blocks which are being edited.
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*/
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function _taxonomy_quick_find_block_configure_configure_block_validate($form, $form_id = NULL) {
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$form_values = array();
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foreach (element_children($form) as $key) {
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switch ($key) {
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case 'types' :
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foreach (element_children($form['types']) as $typekey) {
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$form_values['tqf']['types'][$typekey] = array(
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'limit' => $form['types'][$typekey]['limit']['#value'],
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'weight' => $form['types'][$typekey]['weight']['#value'],
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);
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}
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break;
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default :
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$form_values['tqf'][$key] = $form[$key]['#value'];
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break;
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}
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}
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taxonomy_quick_find_admin_configure_block_validate(NULL, $form_values);
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}
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/**
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* Validate hook for the add block form (plus the edit block after the above function has rebuilt some form_values).
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*/
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function taxonomy_quick_find_admin_configure_block_validate($form, &$form_state) {
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foreach ($form_state['values']['tqf']['types'] as $id => $v) {
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if (!is_numeric($v['limit']) || $v['limit'] < 0) {
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form_set_error('tqf][types]['. $id .'][limit', t('The limit for %field must be a positive integer or zero to disable.', array('%field' => $id)));
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}
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}
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//Check there is at least one vocabulary selected
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$form_state['values']['tqf']['vocabs'] = array_filter($form_state['values']['tqf']['vocabs']);
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if (empty($form_state['values']['tqf']['vocabs'])) {
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form_set_error('tqf][vocabs', t('You must select at least one vocabulary'));
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}
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}
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/**
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* Submit handler for block configuration/addition form
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*/
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function taxonomy_quick_find_admin_configure_block_submit($form, &$form_state) {
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$blocks = variable_get('taxonomy_quick_find_blocks', array());
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foreach ($form_state['values']['tqf']['types'] as $type => $settings) {
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if ($settings['limit'] == 0) {
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unset($form_state['values']['tqf']['types'][$type]);
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}
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else {
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$form_state['values']['tqf']['types'][$type]['limit'] = (int)$form_state['values']['tqf']['types'][$type]['limit'] ;
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}
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}
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//Sort the types (if its an array AND the array contains more than 1 type).
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if (is_array($form_state['values']['tqf']['types']) && count($form_state['values']['tqf']['types']) > 1) {
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uasort($form_state['values']['tqf']['types'], '_taxonomy_quick_find_type_sort');
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}
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//Filter the disabled vocabs out of the array - no need to store them!
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$form_state['values']['tqf']['vocabs'] = array_filter($form_state['values']['tqf']['vocabs']);
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//If delta is set, save over the old block data...
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if (isset($form_state['values']['delta'])) {
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$blocks[ $form_state['values']['delta'] ] = array(
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'name' => $form_state['values']['tqf']['name'],
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'types' => $form_state['values']['tqf']['types'],
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'vocabs' => $form_state['values']['tqf']['vocabs'],
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);
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}
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//otherwise add a new block entry
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else {
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$blocks[] = array(
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'name' => $form_state['values']['tqf']['name'],
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'types' => $form_state['values']['tqf']['types'],
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'vocabs' => $form_state['values']['tqf']['vocabs'],
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);
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}
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variable_set('taxonomy_quick_find_blocks', $blocks);
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}
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/**
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* Implementation of hook_block().
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*/
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function taxonomy_quick_find_block($op = 'list', $delta = 0, $edit = array()) {
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switch ($op) {
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case 'list' :
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$configured_blocks = variable_get('taxonomy_quick_find_blocks', array());
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$blocks = array();
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foreach ($configured_blocks as $delta => $settings) {
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$blocks[$delta] = array('info' => t('TQF') .':'. $settings['name']);
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}
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return $blocks;
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case 'configure' :
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return taxonomy_quick_find_admin_configure_block($form_state, $delta);
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case 'save' :
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$edit = array('values' => $edit);
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taxonomy_quick_find_admin_configure_block_submit(NULL, $edit);
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break;
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| 381 |
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case 'view' :
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if (arg(0) == 'node' && is_numeric(arg(1)) && arg(2) == '') {
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return array('content' => taxonomy_quick_find_view_block($delta));
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}
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| 386 |
break;
|
| 387 |
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| 388 |
}
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| 389 |
}
|
| 390 |
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| 391 |
/**
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| 392 |
* Helper function to get the settings for a block defined by its Delta
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| 393 |
*
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| 394 |
* @param string $delta
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| 395 |
* Delta identification of block
|
| 396 |
*
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* @return array
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| 398 |
* Array of settings
|
| 399 |
*/
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function _taxonomy_quick_find_get_block($delta) {
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| 401 |
$settings = variable_get('taxonomy_quick_find_blocks', array());
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| 402 |
return isset($settings[$delta]) ? $settings[$delta] : FALSE;
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}
|
| 404 |
|
| 405 |
|
| 406 |
/**
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| 407 |
* Function to get the contents for a block. This also includes the Javascript too.
|
| 408 |
*
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| 409 |
* @param string $delta
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* Delta identification of block to be displayed
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*
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* @return string
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* Rendered Output
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| 414 |
*/
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function taxonomy_quick_find_view_block($delta) {
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if ($block = _taxonomy_quick_find_get_block($delta)) {
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| 417 |
//Get the terms for this node
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$terms = taxonomy_node_get_terms(menu_get_object());
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//If there are no terms for the node at all then there isn't a lot of point continuing...
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| 421 |
if (empty($terms)) {
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return FALSE;
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| 423 |
}
|
| 424 |
|
| 425 |
//Remove all terms which aren't part of the blocks "vocab" list
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| 426 |
if (!empty($block['vocabs']) && is_array($block['vocabs'])) {
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| 427 |
foreach ($terms as $tid => $term) {
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| 428 |
if (!$block['vocabs'][ $term->vid ]) {
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| 429 |
unset($terms[$tid]);
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| 430 |
}
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| 431 |
}
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| 432 |
}
|
| 433 |
|
| 434 |
//One last check to see if the terms array is empty (after removing ones from excluded vocabs)...
|
| 435 |
if (empty($terms)) {
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| 436 |
return FALSE;
|
| 437 |
}
|
| 438 |
|
| 439 |
//TODO: Find nice way to preselect a term - maybe based on where the user came from (eg, taxonomy/term/12, preselect TID:12?)
|
| 440 |
reset($terms);
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| 441 |
$term = current($terms);
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| 442 |
$preset = $term->tid;
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| 443 |
|
| 444 |
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| 445 |
//By this point there should be at least ONE term in the array,
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| 446 |
// If there is more than 1 term, add the "select a term" AJAX menu...
|
| 447 |
// If there is ONLY 1 term, use a static link.
|
| 448 |
if (count($terms) > 1) {
|
| 449 |
//Create form - preselecting a node, if necessary...
|
| 450 |
drupal_add_js(drupal_get_path('module', 'taxonomy_quick_find') .'/taxonomy_quick_find.js');
|
| 451 |
drupal_add_css(drupal_get_path('module', 'taxonomy_quick_find') .'/taxonomy_quick_find.css');
|
| 452 |
$output = drupal_get_form('taxonomy_quick_find_block_form', $delta, $terms, $preset);
|
| 453 |
}
|
| 454 |
else {
|
| 455 |
reset($terms);
|
| 456 |
$output = theme('taxonomy_quick_find_one_term', current($terms));
|
| 457 |
}
|
| 458 |
|
| 459 |
$types = node_get_types('names');
|
| 460 |
//Render out nodes for the types...
|
| 461 |
foreach ($block['types'] as $type => $settings) {
|
| 462 |
//If the limit is, somehow, not more than 0 - use a default of '3'.
|
| 463 |
if (!($setting['limit'] > 0)) {
|
| 464 |
$setting['limit'] = 3;
|
| 465 |
}
|
| 466 |
|
| 467 |
$result = db_query('SELECT n.nid, n.title FROM {node} n INNER JOIN {term_node} tn USING (nid) WHERE n.type = "%s" AND n.status = 1 AND tn.tid = %d ORDER BY n.created DESC LIMIT %d', $type, $preset, $settings['limit']);
|
| 468 |
|
| 469 |
$items = array();
|
| 470 |
while ($node = db_fetch_object($result)) {
|
| 471 |
$items[] = l($node->title, 'node/'. $node->nid);
|
| 472 |
}
|
| 473 |
|
| 474 |
if (empty($items)) {
|
| 475 |
$output .= theme('item_list', array(t('No items found.')), ucwords(t($type)), 'ul', array('class' => 'tqf_'. $type));
|
| 476 |
}
|
| 477 |
else {
|
| 478 |
$output .= theme('item_list', $items, ucwords(t($types[$type])), 'ul', array('class' => 'tqf_'. $type));
|
| 479 |
}
|
| 480 |
}
|
| 481 |
return $output;
|
| 482 |
}
|
| 483 |
else {
|
| 484 |
return '';
|
| 485 |
}
|
| 486 |
}
|
| 487 |
|
| 488 |
|
| 489 |
/**
|
| 490 |
* Form for the block. This provides a drop down menu of all the terms for the current node.
|
| 491 |
*
|
| 492 |
* @param string $delta
|
| 493 |
* Block Delta
|
| 494 |
*
|
| 495 |
* @param array $terms
|
| 496 |
* Array of term objects, usually provided by taxonomy_node_get_terms
|
| 497 |
*
|
| 498 |
* @param int $preset
|
| 499 |
* (Optional) Term ID for preselected term in the drop down.
|
| 500 |
*
|
| 501 |
* @return array
|
| 502 |
* FAPI structured array
|
| 503 |
*/
|
| 504 |
function taxonomy_quick_find_block_form($form_state = NULL, $delta, $terms, $preset = NULL) {
|
| 505 |
$form = array();
|
| 506 |
|
| 507 |
foreach ($terms as $tid => $term) {
|
| 508 |
$terms[$tid] = $term->name;
|
| 509 |
}
|
| 510 |
|
| 511 |
$form['terms'] = array(
|
| 512 |
'#type' => 'select',
|
| 513 |
'#options' => $terms,
|
| 514 |
'#title' => t('Select a term'),
|
| 515 |
'#attributes' => array('onchange' => 'Drupal.taxonomyQuickFind('. $delta .', this);'),
|
| 516 |
'#default_value' => $preset,
|
| 517 |
);
|
| 518 |
|
| 519 |
return $form;
|
| 520 |
}
|
| 521 |
|
| 522 |
|
| 523 |
/**
|
| 524 |
* JSON Callback. Provides the nodes for the newly selected terms.
|
| 525 |
*
|
| 526 |
* @param string $delta
|
| 527 |
* Block Delta. Required so we know which node types to limit the block to
|
| 528 |
*
|
| 529 |
* @param int $tid
|
| 530 |
* Selected Term ID
|
| 531 |
*/
|
| 532 |
function taxonomy_quick_find_json($delta = NULL, $tid = NULL) {
|
| 533 |
|
| 534 |
if (is_null($delta) || is_null($tid)) {
|
| 535 |
drupal_not_found();
|
| 536 |
exit;
|
| 537 |
}
|
| 538 |
|
| 539 |
if (isset($delta) && $block = _taxonomy_quick_find_get_block($delta)) {
|
| 540 |
$items = array();
|
| 541 |
foreach ($block['types'] as $type => $settings) {
|
| 542 |
//If the limit is, somehow, not more than 0 - use a default of '3'.
|
| 543 |
if (!($setting['limit'] > 0)) {
|
| 544 |
$setting['limit'] = 3;
|
| 545 |
}
|
| 546 |
|
| 547 |
$result = db_query('SELECT n.nid FROM {node} n INNER JOIN {term_node} tn USING (nid) WHERE n.type = "%s" AND n.status = 1 AND tn.tid = %d ORDER BY n.created DESC LIMIT %d', $type, $tid, $settings['limit']);
|
| 548 |
|
| 549 |
while ($nid = db_fetch_array($result)) {
|
| 550 |
$node = node_load($nid['nid']);
|
| 551 |
$items[$type][] = array('title' => $node->title, 'url' => url('node/'. $node->nid));
|
| 552 |
}
|
| 553 |
|
| 554 |
if (empty($items[$type])) {
|
| 555 |
$items[$type][] = array('title' => t('No items found.'));
|
| 556 |
}
|
| 557 |
}
|
| 558 |
|
| 559 |
|
| 560 |
drupal_set_header('Content-Type: text/javascript; charset=utf-8');
|
| 561 |
print drupal_to_js($items);
|
| 562 |
ob_start();
|
| 563 |
module_invoke_all('exit');
|
| 564 |
ob_end_clean();
|
| 565 |
exit;
|
| 566 |
|
| 567 |
}
|
| 568 |
else {
|
| 569 |
drupal_access_denied();
|
| 570 |
exit;
|
| 571 |
}
|
| 572 |
}
|
| 573 |
|
| 574 |
|
| 575 |
/**
|
| 576 |
* Theme function to allow overriding of the "one term" header for nodes with only one term accessible
|
| 577 |
*
|
| 578 |
* @param object $term
|
| 579 |
* Term Object from Taxonomy_get_term
|
| 580 |
*
|
| 581 |
* @return string
|
| 582 |
*/
|
| 583 |
function theme_taxonomy_quick_find_one_term($term) {
|
| 584 |
return t('Items for !term', array('!term' => l($term->name, taxonomy_term_path($term))));
|
| 585 |
}
|
| 586 |
|
| 587 |
|
| 588 |
/**
|
| 589 |
* Private function for sorting vocabularies
|
| 590 |
*/
|
| 591 |
function _taxonomy_quick_find_type_sort($a, $b) {
|
| 592 |
if ($a['weight'] > $b['weight']) {
|
| 593 |
return 1;
|
| 594 |
}
|
| 595 |
elseif ($a['weight'] < $b['weight']) {
|
| 596 |
return-1;
|
| 597 |
}
|
| 598 |
|
| 599 |
// TODO: This isn't ideal - what to do if the weights are the same?! We dont know the name of the block here so cant do alphabetical..
|
| 600 |
return 0;
|
| 601 |
}
|
| 602 |
|
| 603 |
|
| 604 |
function _taxonomy_quick_find_walk_node_types(&$item, $key, $data) {
|
| 605 |
$item = t('%type (!count node limit)', array(
|
| 606 |
'%type' => isset($data['nodetypes'][$item]) ? $data['nodetypes'][$item] : t('Unknown Node Type'),
|
| 607 |
'!count' => $data['block'][$item]['limit'],
|
| 608 |
));
|
| 609 |
}
|
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