Better way for pagination - codeigniter

Question

If I want to do the pagination, I have to fetch data twice, one for get total rows, one for get the rows with limit, for example
<?php
class Admins extends CI_Model
{
public function dataTotal()
{
$total = $this->db->get('admins')->num_rows();
return $total;
}
public function data()
{
return $this->db->limit(10, $this->start)->get('admins')->result();
}
}
Then assign total to pagination and assign the data to view, it's quite make sense, but if there are a lot of conditions, I need to do it twice, for example:
<?php
class Admins extends CI_Model
{
public function dataTotal()
{
$db = $this->db->from('admins')
->where('id >', 1)
->like('name', 'abc', 'both');
return $db->get()->num_rows();
}
public function data()
{
$data = $this->db->from('admins')
->where('id >', 1)
->like('name', 'abc', 'both')
->limit(10, $this->start);
return $data->get()->result();
}
}
More conditions means more duplicated code, any way to make condition filter as one?

Answer 1

You could make a function and use an SQL query as a parameter, that would be the most recommended option. If that's not an option you could do something like this:
public function data($option = "default")
{
if($option == 'default')
{
$data = $this->db->from('admins')
->where('id >', 1)
->like('name', 'abc', 'both')
}
else if($option == 'other')
{
$data = $this->db->from('admins')
->where('id >', 1)
->like('name', 'abc', 'both')
->limit(10, $this->start);
}
return $data->get()->result();
}
And then calling it:
data();
data("other");
That's the most efficient way I can come up with.