如何使用codeigniter基于值计算总记录数

Question

  id | name | status

   1 |  name | yes

   2 |  name | no 

   3 |  name | yes

How i can count total status with value yes and with value no using active records ? Like count is : yes = 2 , no = 1

This is what i have tried so far

$this->db->select('count(status));
//$this->db->select('count(where status == 'yes')); // not working
$query = $this->db->get();

Answer 1

Use where method of CI to add where condition.change your query like below:

$this->db->select('count(status)');
$this->db->where('status','yes'); // apply where
$query = $this->db->get();

To get all status count, use group by clause

$this->db->select('status,count(status)');
$this->db->group_by('status'); // apply group by
$query = $this->db->get();