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   1  <?php
   2  
   3  //
   4  // Category
   5  //
   6  
   7  function category_exists($cat_name) {
   8      $id = is_term($cat_name, 'category');
   9      if ( is_array($id) )
  10          $id = $id['term_id'];
  11      return $id;
  12  }
  13  
  14  function get_category_to_edit( $id ) {
  15      $category = get_category( $id, OBJECT, 'edit' );
  16      return $category;
  17  }
  18  
  19  function wp_create_category($cat_name) {
  20      if ( $id = category_exists($cat_name) )
  21          return $id;
  22  
  23      return wp_insert_category( array('cat_name' => $cat_name) );
  24  }
  25  
  26  function wp_create_categories($categories, $post_id = '') {
  27      $cat_ids = array ();
  28      foreach ($categories as $category) {
  29          if ($id = category_exists($category))
  30              $cat_ids[] = $id;
  31          else
  32              if ($id = wp_create_category($category))
  33                  $cat_ids[] = $id;
  34      }
  35  
  36      if ($post_id)
  37          wp_set_post_categories($post_id, $cat_ids);
  38  
  39      return $cat_ids;
  40  }
  41  
  42  function wp_delete_category($cat_ID) {
  43      $cat_ID = (int) $cat_ID;
  44      $default = get_option('default_category');
  45  
  46      // Don't delete the default cat
  47      if ( $cat_ID == $default )
  48          return 0;
  49  
  50      return wp_delete_term($cat_ID, 'category', "default=$default");
  51  }
  52  
  53  function wp_insert_category($catarr, $wp_error = false) {
  54      extract($catarr, EXTR_SKIP);
  55  
  56      if ( trim( $cat_name ) == '' )
  57          return 0;
  58  
  59      $cat_ID = (int) $cat_ID;
  60  
  61      // Are we updating or creating?
  62      if ( !empty ($cat_ID) )
  63          $update = true;
  64      else
  65          $update = false;
  66  
  67      $name = $cat_name;
  68      $description = $category_description;
  69      $slug = $category_nicename;
  70      $parent = $category_parent;
  71  
  72      $parent = (int) $parent;
  73      if ( empty($parent) || !category_exists( $parent ) || ($cat_ID && cat_is_ancestor_of($cat_ID, $parent) ) )
  74          $parent = 0;
  75  
  76      $args = compact('name', 'slug', 'parent', 'description');
  77  
  78      if ( $update )
  79          $cat_ID = wp_update_term($cat_ID, 'category', $args);
  80      else
  81          $cat_ID = wp_insert_term($cat_name, 'category', $args);
  82  
  83      if ( is_wp_error($cat_ID) ) {
  84          if ( $wp_error )
  85              return $cat_ID;
  86          else
  87              return 0;
  88      }
  89  
  90      return $cat_ID['term_id'];
  91  }
  92  
  93  function wp_update_category($catarr) {
  94      $cat_ID = (int) $catarr['cat_ID'];
  95  
  96      if ( $cat_ID == $catarr['category_parent'] )
  97          return false;
  98  
  99      // First, get all of the original fields
 100      $category = get_category($cat_ID, ARRAY_A);
 101  
 102      // Escape data pulled from DB.
 103      $category = add_magic_quotes($category);
 104  
 105      // Merge old and new fields with new fields overwriting old ones.
 106      $catarr = array_merge($category, $catarr);
 107  
 108      return wp_insert_category($catarr);
 109  }
 110  
 111  //
 112  // Tags
 113  //
 114  
 115  function get_tags_to_edit( $post_id ) {
 116      $post_id = (int) $post_id;
 117      if ( !$post_id )
 118          return false;
 119  
 120      $tags = wp_get_post_tags($post_id);
 121  
 122      if ( !$tags )
 123          return false;
 124  
 125      foreach ( $tags as $tag )
 126          $tag_names[] = $tag->name;
 127      $tags_to_edit = join( ', ', $tag_names );
 128      $tags_to_edit = attribute_escape( $tags_to_edit );
 129      $tags_to_edit = apply_filters( 'tags_to_edit', $tags_to_edit );
 130      return $tags_to_edit;
 131  }
 132  
 133  function tag_exists($tag_name) {
 134      return is_term($tag_name, 'post_tag');
 135  }
 136  
 137  function wp_create_tag($tag_name) {
 138      if ( $id = tag_exists($tag_name) )
 139          return $id;
 140  
 141      return wp_insert_term($tag_name, 'post_tag');
 142  }
 143  
 144  ?>