使用Codeigniter在文本框中显示最后插入的记录

Question

I want to show last inserted record in textarea which is tinymce editor after I press submit button the record should get submitted and with the help of id the same record should be fetched from database with the help of model and returned to controller and then passed on to view, but I'm unable to pass the last inserted record from model to controller and view. Please help to sort out my issue.

Controller:

public function create_user(){

    $goal1=$this->input->get_post('description1');
    $goal2=$this->input->get_post('description2');
    $goal3=$this->input->get_post('description3');


    $id=$this->input->post('c_id');  

    $data=array('goal1'=>$goal1,'goal2'=>$goal2,'goal3'=>$goal3);
    $result_goal = $this->course_user->create_user($data,$id);

    //Code to retrieve last record

    $result_updated_record = $this->course_model->get_last_record($id);

    if($result_updated_record!='false')
    { 
        return $result_updated_record;
    }
    else
    {
        return false;
    }

}

Model:

public function get_last_record($last_id)
{
   $condition = "id =" . "'" . $last_id . "'";
   $this->load->database();
   $this->db->select("*");
   $this->db->from("goal");
   $this->db->where($condition);
   $query=$this->db->get();
   $res = $query->result_array();
}

View:

$.ajax({
       type: 'POST',
       url: "<?php echo base_url();?>c_user/create_user",
       cache: false,                
       data: dataString,
       success: function(data){

        tinymce.get('id_description1').setContent('');
        tinymce.get('id_description2').setContent('');
        tinymce.get('id_description3').setContent('');

    },
    error: function(){                      
        alert('Error while request...');
    }
 });

Answer 1

使用$this->db->insert_id()将返回最后插入的记录主键。