How to use insert_batch to insert data in db - php

Question

how to use insert_batch to add multiple data in database by using for loop please help me as i am very new to codeigniter.
My controller
class Student extends CI_Controller {
public function _construct()
{
parent::_construct();
//call model
$this->load->model("StudentModel","m");
}
function index()
{
$this->load->view("index");
}
function savedata()
{
$data = array(
array(
'studentname' => 'Reddy' ,
'gender' => 'Male' ,
'phone' => '456879'
),
array(
'studentname' => 'Yalla' ,
'gender' => 'Female' ,
'phone' => '12345678'
)
);
//mean that insert into database table name tblstudent
$this->db->insert_batch('tblstudent',$data);
//mean that when insert already it will go to page index
redirect("Student/index");
}
function edit($id)
{
$row=$this->m->getonerow($id);
$data['r']=$row;
$this->load->view('edit',$data);
}
function update($id)
{
$id=$this->input->post('id');
$data=array(
'studentname' => $this->input->post('studentname'),
'gender' => $this->input->post('gender'),
'phone' => $this->input->post('phone')
);
$this->db->where('id',$id);
$this->db->update('tblstudent',$data);
redirect("Student/index");
}
function delete($id)
{
$id=$this->db->where('id',$id);
$this->db->delete('tblstudent');
redirect("Student/index");
}
}
Model
class StudentModel extends CI_Model{
function _construct()
{
parent::_construct();
}
function gettable()
{
$query=$this->db->get('tblstudent');
return $query->result();
}
function getonerow($id)
{
$this->db->where('id',$id);
$query = $this->db->get('tblstudent');
return $query->row();
}
}

Answer 1

First of all you don't have to add direct access to database in controller. For all database access code you have to create model.
in your above code you added database access code in direct controller,which is logically wrong as per MVC architecture.
Below is code as per MVC and all database access code resides in Model.
Your main question for batch insert is in function insert()
of model.Please go through it.
<?php
class Student extends CI_Controller {
public function _construct()
{
parent::_construct();
//call model
$this->load->model("StudentModel","m");
}
function index()
{
$this->load->view("index");
}
function savedata()
{
$stdarray = array();
$stdarray[] = array('studentname' => 'Reddy' ,'gender' => 'Male' ,'phone' => '456879');
$stdarray[] = array('studentname' => 'Yalla' ,'gender' => 'Female' ,'phone' => '12345678');
//mean that insert into database table name tblstudent
$this->db->insert_batch('tblstudent',$data);
$this->m->insert($stdarray);
//mean that when insert already it will go to page index
redirect("Student/index");
}
function edit($id)
{
$row=$this->m->getonerow($id);
$data['r']=$row;
$this->load->view('edit',$data);
}
function update($id)
{
$updateArray = array();
$updateArray['studentname'] = $this->input->post('studentname');
$updateArray['gender'] = $this->input->post('gender');
$updateArray['phone'] = $this->input->post('phone');
$whereArray = array();
$whereArray['id'] = $id;
$this->m->updateRow($updateArray,$whereArray);
redirect("Student/index");
}
function delete($id)
{
$whereArray = array();
$whereArray['id'] = $id;
$this->m->deleteRow($whereArray);
redirect("Student/index");
}
}
?>
Model:
class StudentModel extends CI_Model{
function _construct()
{
parent::_construct();
}
function gettable()
{
$query=$this->db->get('tblstudent');
return $query->result();
}
function getonerow($id)
{
$this->db->where('id',$id);
$query = $this->db->get('tblstudent');
return $query->row();
}
function insert($insrtArray)
{
$success = $this->db->insert_batch('tblstudent', $insrtArray);
}
function updateRow($updateArray,$whereArray)
{
if(!empty($whereArray))
{
foreach ($whereArray as $key => $value) {
$this->db->where($key,$value);
}
}
$this->db->update('tblstudent',$updateArray);
}
function deleteRow($whereArray)
{
if(!empty($whereArray))
{
foreach ($whereArray as $key => $value) {
$this->db->where($key,$value);
}
}
$this->db->delete('tblstudent');
}
}
?>
Important: morever you have to use escape function for all inputa which are direct send to database for maintain security from SQL injection.