Not showing some categories

[Sun Zaza]

Hi,

For some reasons I don't want to show some categories on the homepage (index.php/home.html). (It has nothing to do with user/category permissions)

I will explain:
I added an additional category field: cat_not_show

In functions.php I need help to tweak the function "get_categories" to make it not showing the category with cat_not_show = 1:

function get_categories($cat_id = 0) {
  global $site_template, $site_db, $site_sess, $config, $lang;
  global $cat_cache, $cat_parent_cache, $new_image_cache, $subcat_ids;

  $cattable_width = ceil((intval($config['cat_table_width'])) / $config['cat_cells']);
  if ((substr($config['cat_table_width'],-1)) == "%") {
    $cattable_width .= "%";
  }

  if (!isset($cat_parent_cache[$cat_id])) {
    return "";
  }

  $visible_cat_cache = array();
  foreach ($cat_parent_cache[$cat_id] as $key => $val) {
    if (check_permission("auth_viewcat", $val)) {
      $visible_cat_cache[$key] = $val;
    }
  }

  if (empty($visible_cat_cache)) {
    return "";
  }

  $total = sizeof($visible_cat_cache);
  $table_columns = (intval($config['cat_cells'])) ? intval($config['cat_cells']) : 2;
  if ($total <= $table_columns) {
    $table_rows = 1;
  }
  else {
    $table_rows = $total / $table_columns;
    if ($total >= $table_columns && !is_integer($table_rows)) {
      $table_rows = intval($table_rows) + 1;
    }
  }

  $categories = "\n<table width=\"".$config['cat_table_width']."\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tr>\n<td valign=\"top\" width=\"".$cattable_width."\" class=\"catbgcolor\">\n";
  $categories .= "<table border=\"0\" cellpadding=\"".$config['cat_table_cellpadding']."\" cellspacing=\"".$config['cat_table_cellspacing']."\">\n";
  $count = 0;
  $count2 = 0;
  foreach ($visible_cat_cache as $key => $category_id) {
    $categories .= "<tr>\n<td valign=\"top\">\n";

    $is_new = (isset($new_image_cache[$category_id]) && $new_image_cache[$category_id] > 0) ? 1 : 0;
    $num_images = (isset($cat_cache[$category_id]['num_images'])) ? $cat_cache[$category_id]['num_images'] : 0;

    $subcat_ids = array();
    get_subcat_ids($category_id, $category_id, $cat_parent_cache);

    if (isset($subcat_ids[$category_id])) {
      foreach ($subcat_ids[$category_id] as $val) {
        if (isset($new_image_cache[$val]) && $new_image_cache[$val] > 0) {
          $is_new = 1;
        }
        if (isset($cat_cache[$val]['num_images'])) {
          $num_images += $cat_cache[$val]['num_images'];
        }
      }
    }

    if (defined("SHOW_RANDOM_IMAGE") && SHOW_RANDOM_IMAGE == 0 || defined("SHOW_RANDOM_CAT_IMAGE") && SHOW_RANDOM_CAT_IMAGE == 0) {
      $random_cat_image_file = "";
    }
    else {
      $random_cat_image_file = get_random_image($category_id, 0, 1);
    }

    $site_template->register_vars(array(
      "cat_id" => $category_id,
      "cat_name" => format_text($cat_cache[$category_id]['cat_name'], 2),
      "cat_description" => format_text($cat_cache[$category_id]['cat_description'], 1),
      "cat_hits" => $cat_cache[$category_id]['cat_hits'],
      "cat_is_new" => $is_new,
      "lang_new" => $lang['new'],
      "sub_cats" => get_subcategories($category_id),
      "cat_url" => $site_sess->url(ROOT_PATH."categories.php?".URL_CAT_ID."=".$category_id),
      "random_cat_image_file" => $random_cat_image_file,
      "num_images" => $num_images
    ));
    $categories .= $site_template->parse_template("category_bit");
    $count++;
    $count2++;
    $categories .= "</td>\n</tr>\n";

    if ($count == $table_rows && $count2 < sizeof($visible_cat_cache)) {
      $categories .= "</table></td>\n";
      $categories .= "<td valign=\"top\" width=\"".$cattable_width."\" class=\"catbgcolor\">\n";
      $categories .= "<table border=\"0\" cellpadding=\"".$config['cat_table_cellpadding']."\" cellspacing=\"".$config['cat_table_cellspacing']."\">\n";

      $total = $total - $count2;
      $table_columns = $table_columns - 1;
      /*if ($total <= $table_columns && $table_columns > 1) {
        $table_rows = 1;
      }
      else {
        $table_rows = $total / $table_columns;
        if ($total >= $table_columns && !is_integer($table_rows)) {
          $table_rows = intval($table_rows) + 1;
        }
      }*/
      $count = 0;
    }
  }

  $categories .= "</table>\n</td>\n</tr>\n</table>\n";
  return $categories;
}

Any help will be aprrecaited,

Thanks in advance,
Cruxy

[V@no]

Replace   foreach ($cat_parent_cache[$cat_id] as $key => $val) {
    if (check_permission("auth_viewcat", $val)) {
      $visible_cat_cache[$key] = $val;
    }
  }

with:
  $exclude = array(1,2,3);//categories you don't want show
  foreach ($cat_parent_cache[$cat_id] as $key => $val) {
    if (check_permission("auth_viewcat", $val)) {
      if (!$cat_id && in_array($val, $exclude)) continue;
      $visible_cat_cache[$key] = $val;
    }
  }

[Sun Zaza]

Thanks V@no for your reaction.

It works fine with categories, but not with subcategories.

How can we implement that?

Thanks in advance,
Cruxy

[V@no]

Pretty much the same thing. Find:

  foreach ($cat_parent_cache[$parent_id] as $key => $val) {
    if (check_permission("auth_viewcat", $val)) {
      $visible_cat_cache[$key] = $val;
    }
  }


Replace it with:
  $exclude = array(1,2,3);//categories you don't want show
  foreach ($cat_parent_cache[$parent_id] as $key => $val) {
    if (check_permission("auth_viewcat", $val)) {
      if (!$parent_id && in_array($val, $exclude)) continue;
      $visible_cat_cache[$key] = $val;
    }
  }

[Sun Zaza]

I got this error:

Warning: Invalid argument supplied for foreach() in /hsphere/local/home/***/*****/includes/functions.php on line 1479 

Do you know why?

[V@no]

Maybe you replaced something else? The second code I showed is not replacing of the first one, it's an additional.