Question

我需要创建一些返回类别和子类别数组的函数，其中子类别可以包含多个父类。我试图解决这个问题大概6天，但互联网上什么都没有。

以下是我创建的一些代码，但它不起作用。

    private function getAllSubs($category, $index, $parent = null)
 {
  $subs = $this->database->table('eshop_product_categoryo')
  ->where('parent', $category->id);

  $haveSub = false;
  foreach($subs as $sub)
  {
    $haveSub = true; 
    break;
  }

  if($haveSub)
  {
   $mainCategory = $this->database->table('eshop_product_categoryo')
   ->where('category', $category->id);

   $isMainCategory = true;
   foreach($mainCategory as $main)
   {
    $isMainCategory = false; 
    break;
   }

   $ppp = 0;

   if(!$isMainCategory)
   {
    $ppp = $parent;
   }

   $this->someArray[] = array
   (
    'name'  => $category->name,
    'parent'  => $ppp,
    'index' => $index,
    'id'    => $category->id
   );

   foreach($subs as $sub)
   {
    $ctgry = $this->database->table('eshop_product_category')
    ->where('id', $sub->category)
    ->fetch();
    $this->getAllSubs($ctgry, ($index+1), $sub->parent);
   }
  }
 }

Answer 1

好吧终于解决了...... ;-)这里几乎是最终的版本

private function getAllSubs($category, $index)
 {
  $subs = $this->database->table('eshop_product_categoryo')
  ->where('otec', $category->id);

  $hasSub = false;
  foreach($subs as $sub){$hasSub = true; break;}

  if($hasSub)
  {
   $this->someArray[] = array
   (
    'name'  => $category->name,
    'index' => $index
   );
   foreach($subs as $sub)
   {
    $parent = $this->database->table('eshop_product_category')
    ->where('id', $sub->category)
    ->fetch();
    $this->getAllSubs($parent, ($index + 1));
   }
  }
  else
  {
   $this->someArray[] = array
   (
    'name'  => $category->name,
    'index' => $index
   );
  }
 }

如何创建类别树，子类别可以包含多个父类？

1 个答案: