[Sommaire] [Imprimer]

   1  <?php
   2  
   3  function get_category_children($id, $before = '/', $after = '') {
   4      if ( 0 == $id )
   5          return '';
   6  
   7      $chain = '';
   8  
   9      $cat_ids = get_all_category_ids();
  10      foreach ( $cat_ids as $cat_id ) {
  11          if ( $cat_id == $id)
  12              continue;
  13  
  14          $category = get_category($cat_id);
  15          if ( $category->category_parent == $id ) {
  16              $chain .= $before.$category->cat_ID.$after;
  17              $chain .= get_category_children($category->cat_ID, $before, $after);
  18          }
  19      }
  20      return $chain;
  21  }
  22  
  23  function get_category_link($category_id) {
  24      global $wp_rewrite;
  25      $catlink = $wp_rewrite->get_category_permastruct();
  26  
  27      if ( empty($catlink) ) {
  28          $file = get_option('home') . '/';
  29          $catlink = $file . '?cat=' . $category_id;
  30      } else {
  31          $category = &get_category($category_id);
  32          $category_nicename = $category->category_nicename;
  33  
  34          if ( $parent = $category->category_parent )
  35              $category_nicename = get_category_parents($parent, false, '/', true) . $category_nicename . '/';
  36  
  37          $catlink = str_replace('%category%', $category_nicename, $catlink);
  38          $catlink = get_option('home') . trailingslashit($catlink);
  39      }
  40      return apply_filters('category_link', $catlink, $category_id);
  41  }
  42  
  43  function get_category_parents($id, $link = FALSE, $separator = '/', $nicename = FALSE){
  44      $chain = '';
  45      $parent = &get_category($id);
  46  
  47      if ( $nicename )
  48          $name = $parent->category_nicename;
  49      else
  50          $name = $parent->cat_name;
  51  
  52      if ( $parent->category_parent && ($parent->category_parent != $parent->cat_ID) )
  53          $chain .= get_category_parents($parent->category_parent, $link, $separator, $nicename);
  54  
  55      if ( $link )
  56          $chain .= '<a href="' . get_category_link($parent->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $parent->cat_name) . '">'.$name.'</a>' . $separator;
  57      else
  58          $chain .= $name.$separator;
  59      return $chain;
  60  }
  61  
  62  function get_the_category($id = false) {
  63  global $post, $category_cache, $blog_id;
  64  
  65      if ( !$id )
  66          $id = $post->ID;
  67  
  68      if ( !isset($category_cache[$blog_id][$id]) )
  69          update_post_category_cache($id);
  70  
  71      $categories = $category_cache[$blog_id][$id];
  72  
  73      if ( !empty($categories) )
  74          sort($categories);
  75      else
  76          $categories = array();
  77  
  78      return $categories;
  79  }
  80  
  81  function get_the_category_by_ID($cat_ID) {
  82      $cat_ID = (int) $cat_ID;
  83      $category = &get_category($cat_ID);
  84      return $category->cat_name;
  85  }
  86  
  87  function get_the_category_list($separator = '', $parents='') {
  88      $categories = get_the_category();
  89      if (empty($categories))
  90          return apply_filters('the_category', __('Uncategorized'), $separator, $parents);
  91  
  92      $thelist = '';
  93      if ( '' == $separator ) {
  94          $thelist .= '<ul class="post-categories">';
  95          foreach ( $categories as $category ) {
  96              $thelist .= "\n\t<li>";
  97              switch ( strtolower($parents) ) {
  98                  case 'multiple':
  99                      if ($category->category_parent)
 100                          $thelist .= get_category_parents($category->category_parent, TRUE);
 101                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
 102                      break;
 103                  case 'single':
 104                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . ' rel="category tag">';
 105                      if ($category->category_parent)
 106                          $thelist .= get_category_parents($category->category_parent, FALSE);
 107                      $thelist .= $category->cat_name.'</a></li>';
 108                      break;
 109                  case '':
 110                  default:
 111                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
 112              }
 113          }
 114          $thelist .= '</ul>';
 115      } else {
 116          $i = 0;
 117          foreach ( $categories as $category ) {
 118              if ( 0 < $i )
 119                  $thelist .= $separator . ' ';
 120              switch ( strtolower($parents) ) {
 121                  case 'multiple':
 122                      if ( $category->category_parent )
 123                          $thelist .= get_category_parents($category->category_parent, TRUE);
 124                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
 125                      break;
 126                  case 'single':
 127                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">';
 128                      if ( $category->category_parent )
 129                          $thelist .= get_category_parents($category->category_parent, FALSE);
 130                      $thelist .= "$category->cat_name</a>";
 131                      break;
 132                  case '':
 133                  default:
 134                      $thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
 135              }
 136              ++$i;
 137          }
 138      }
 139      return apply_filters('the_category', $thelist, $separator, $parents);
 140  }
 141  
 142  function in_category($category) { // Check if the current post is in the given category
 143      global $category_cache, $post, $blog_id;
 144  
 145      if ( isset( $category_cache[$blog_id][$post->ID][$category] ) )
 146          return true;
 147      else
 148          return false;
 149  }
 150  
 151  function the_category($separator = '', $parents='') {
 152      echo get_the_category_list($separator, $parents);
 153  }
 154  
 155  function category_description($category = 0) {
 156      global $cat;
 157      if ( !$category )
 158          $category = $cat;
 159      $category = & get_category($category);
 160      return apply_filters('category_description', $category->category_description, $category->cat_ID);
 161  }
 162  
 163  function wp_dropdown_categories($args = '') {
 164      if ( is_array($args) )
 165          $r = &$args;
 166      else
 167          parse_str($args, $r);
 168  
 169      $defaults = array('show_option_all' => '', 'show_option_none' => '', 'orderby' => 'ID',
 170          'order' => 'ASC', 'show_last_update' => 0, 'show_count' => 0,
 171          'hide_empty' => 1, 'child_of' => 0, 'exclude' => '', 'echo' => 1,
 172          'selected' => 0, 'hierarchical' => 0, 'name' => 'cat',
 173          'class' => 'postform');
 174      $defaults['selected'] = ( is_category() ) ? get_query_var('cat') : 0;
 175      $r = array_merge($defaults, $r);
 176      $r['include_last_update_time'] = $r['show_last_update'];
 177      extract($r);
 178  
 179      $categories = get_categories($r);
 180  
 181      $output = '';
 182      if ( ! empty($categories) ) {
 183          $output = "<select name='$name' id='$name' class='$class'>\n";
 184  
 185          if ( $show_option_all ) {
 186              $show_option_all = apply_filters('list_cats', $show_option_all);
 187              $output .= "\t<option value='0'>$show_option_all</option>\n";
 188          }
 189  
 190          if ( $show_option_none) {
 191              $show_option_none = apply_filters('list_cats', $show_option_none);
 192              $output .= "\t<option value='-1'>$show_option_none</option>\n";
 193          }
 194  
 195          if ( $hierarchical )
 196              $depth = 0;  // Walk the full depth.
 197          else
 198              $depth = -1; // Flat.
 199  
 200          $output .= walk_category_dropdown_tree($categories, $depth, $r);
 201          $output .= "</select>\n";
 202      }
 203  
 204      $output = apply_filters('wp_dropdown_cats', $output);
 205  
 206      if ( $echo )
 207          echo $output;
 208  
 209      return $output;
 210  }
 211  
 212  function wp_list_categories($args = '') {
 213      if ( is_array($args) )
 214          $r = &$args;
 215      else
 216          parse_str($args, $r);
 217  
 218      $defaults = array('show_option_all' => '', 'orderby' => 'name',
 219          'order' => 'ASC', 'show_last_update' => 0, 'style' => 'list',
 220          'show_count' => 0, 'hide_empty' => 1, 'use_desc_for_title' => 1,
 221          'child_of' => 0, 'feed' => '', 'feed_image' => '', 'exclude' => '',
 222          'hierarchical' => true, 'title_li' => __('Categories'));
 223      $r = array_merge($defaults, $r);
 224      if ( !isset($r['pad_counts']) && $r['show_count'] && $r['hierarchical'] )
 225          $r['pad_counts'] = true;
 226      if ( isset($r['show_date']) )
 227          $r['include_last_update_time'] = $r['show_date'];
 228      extract($r);
 229  
 230      $categories = get_categories($r);
 231  
 232      $output = '';
 233      if ( $title_li && 'list' == $style )
 234              $output = '<li class="categories">' . $r['title_li'] . '<ul>';
 235  
 236      if ( empty($categories) ) {
 237          if ( 'list' == $style )
 238              $output .= '<li>' . __("No categories") . '</li>';
 239          else
 240              $output .= __("No categories");
 241      } else {
 242          global $wp_query;
 243          
 244          if ( is_category() )
 245              $r['current_category'] = $wp_query->get_queried_object_id();
 246  
 247          if ( $hierarchical )
 248              $depth = 0;  // Walk the full depth.
 249          else
 250              $depth = -1; // Flat.
 251  
 252          $output .= walk_category_tree($categories, $depth, $r);
 253      }
 254  
 255      if ( $title_li && 'list' == $style )
 256          $output .= '</ul></li>';
 257  
 258      echo apply_filters('wp_list_categories', $output);
 259  }
 260  
 261  //
 262  // Helper functions
 263  //
 264  
 265  function walk_category_tree() {
 266      $walker = new Walker_Category;
 267      $args = func_get_args();
 268      return call_user_func_array(array(&$walker, 'walk'), $args);
 269  }
 270  
 271  function walk_category_dropdown_tree() {
 272      $walker = new Walker_CategoryDropdown;
 273      $args = func_get_args();
 274      return call_user_func_array(array(&$walker, 'walk'), $args);
 275  }
 276  
 277  ?>