如何使用 CodeIgniter 的 Active Record 方法添加 ORDER BY 子句？

Question

I have a very small script to get all records from a database table, the code is below.

$query = $this->db->get($this->table_name);
return $query->result();

Using this syntax, how would I add a ORDER BY 'name' clause to my select query?

I get errors every time I stick the order by bit on the end.

Answer 1

I believe the get() function immediately runs the select query and does not accept ORDER BY conditions as parameters. I think you'll need to separately declare the conditions, then run the query. Give this a try:

$this->db->from($this->table_name);
$this->db->order_by("name", "asc");
$query = $this->db->get(); 
return $query->result();

CodeIgniter Documentation order_by()

Answer 2

Using this code to multiple order by in single query.

$this->db->from($this->table_name);
$this->db->order_by("column1 asc,column2 desc");
$query = $this->db->get(); 
return $query->result();

Answer 3

Simple and easy:

$this->db->order_by("name", "asc");
$query = $this->db->get($this->table_name);
return $query->result();

Answer 4

Just add the'order_by' clause to your code and modify it to look just like the one below.

$this->db->order_by('name', 'asc');
$result = $this->db->get($table);

There you go.

Answer 5

Try This:

        $this->db->select('main.*');
        $this->db->from("ci_table main");
        $this->db->order_by("main.id", "DESC");
        return $this->db->get()->result();

Answer 6

100% Working!!!!

$this->db->order_by('price', 'ASC');
$q=$this->db->get('add_new_car');
return $q->result_array();

Answer 7

$query = $this->db->from("table_name")->order_by("table_name.column_name desc")->get();
return $query->result();

Answer 8

你也可以这样安排。

return $this->db->order_by('name', 'DESC')->get($this -> table_name)->result();

Answer 9

Two table join and order by name - 100% worked .

$this->db->from('user_login');
$this->db->join('role','user_login.Roleid=role.Roleid');
return $this->db->order_by('Uname ASC')->get('')->result();

Answer 10

Simple and easy way:

// ascending order
$q=$this->db->select('*')->from('tbl_name')->order_by('name','asc')->get();
return $q->result();

// descending order
$q =$this->db->select('*')->from('tbl_name')->order_by('name','desc')->get();
return $q->result();

Answer 11

function getProductionGroupItems($itemId){
     $this->db->select("*");
     $this->db->where("id",$itemId);
     $this->db->or_where("parent_item_id",$itemId);

    /*********** order by *********** */
     $this->db->order_by("id", "asc");

     $q=$this->db->get("recipe_products");
     if($q->num_rows()>0){
         foreach($q->result() as $row){
             $data[]=$row;
         }
         return $data;
     }
    return false;
}

Answer 12

Use order_by :

$this->db->order_by("coloumn_name", "desc");
$query = $this->db->get('table_name');
return $query->result();