从两个表中选择数据时出错

Question

Error Number: 1096

No tables used SELECT *

$where = array();
            if($category){
                $where[] = 'subcategories.categories_id = '.$category;
            }
            if($value){
                $where[] = "subcategories.name LIKE '%".$value."%'";
            }
            $where = implode('and', $where);
            $this->db->query("select subcategories.*, categories.name as catname FROM subcategories JOIN categories ON categories.id = subcategories.categories_id where ".$where);
            $query = $this->db->get();

I am joining two table category and subcategory with dynamic where condition.same query working in phpmyadmin but getting error in codeigniter , thanks in advance

Answer 1

Try like

$query = $this->db->query("Your Query Here");
$query = $query->result();
print_r($query);

And Edit your where condition like

$where = '';
if($category){
     $where .= 'subcategories.categories_id = '.$category;
}
if($value){
     if($category) {
         $where .= " AND ";
     }
     $where .= "subcategories.name LIKE '%".$value."%'";
}