validation with username when i submit data to database - codeigniter

Question

please help me if i remove the user validation then data are saved but when attach the validation with name then error show...
**controller code**
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Category extends CI_Controller{
//this method will show category list page
public function index()
{
$this->load->view('admin/category/list');
}
//this method will show create category page
public function create()
{
$this->load->model('Category_model');
$this->load->library('form_validation');
$this->form_validation->set_error_delimiters('<p class="invalid-feedback">','</p>');
$this->form_validation->set_rules('name','Name','trim|required');
if($this->form_validation->run()==TRUE)
{
//will save category in database
$formArray['name']=$this->input->post('name');
$formArray['status']=$this->input->post('status');
$formArray['created_at']=date('Y-m-d H:i:s');
$this->Category_model->create($formArray);
$this->session->set_flashdata('success','category added successfully');
redirect(base_url().'admin/category/index');
}else{
//will show error
$this->load->view('admin/category/create');
}
}
//this method will show category edit page
public function edit()
{
}
//this is for delete a category page
public function delete()
{
}
}
**Model code**
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Category_model extends CI_Model{
public function create($formArray){
$this->db->insert('categories',$formArray);
}
}
**view code**
<?php $this->load->view('admin/header');?>
<!-- Content Wrapper. Contains page content -->
<div class="content-wrapper">
<!-- Content Header (Page header) -->
<div class="content-header">
<div class="container-fluid">
<div class="row mb-2">
<div class="col-sm-6">
<h1 class="m-0">Categories</h1>
</div><!-- /.col -->
<div class="col-sm-6">
<ol class="breadcrumb float-sm-right">
<li class="breadcrumb-item">Home</li>
<li class="breadcrumb-item">Categories</li>
<li class="breadcrumb-item active">Create New Categories</li>
</ol>
</div><!-- /.col -->
</div><!-- /.row -->
</div><!-- /.container-fluid -->
</div>
<!-- /.content-header -->
<!-- Main content -->
<div class="content">
<div class="container-fluid">
<div class="row">
<div class="col-lg-12">
<div class="card card-primary">
<div class="card-header">
<div class="card-title">
Create New Category
</div>
</div>
</div>
<form name="categoryForm" id="categoryForm" method="post" action="<?php echo base_url().'admin/category/create'?>">
<div class="card-body">
<div class="form-group">
<label>Name</label>
<input type="text" name="name" id="name" value="" class="form-control <?php echo (form_error('name')!="") ? 'is-invalid':'';?>">
<?php echo form_error('name');?>
</div>
<div class="form-group">
<label>Image</label><br>
<input type="file" name="name" id="image">
</div>
<div class="custom-control custom-radio float-left">
<input value="1" type="radio" id="statusActive" name="status" checked="">
<label for="statusActive" class="custom-control-lable">Active</label>
</div>
<div class="custom-control custom-radio float-left ml-3">
<input value="0" type="radio" id="statusBlock" name="status">
<label for="statusBlock" class="custom-control-lable">Block</label>
</div>
</div>
<div class="card-footer">
<button name="submit" type="submit" class="btn btn-primary">Submit</button>
Back
</div>
</form>
</div>
</div>
<!-- /.col-md-6 -->
</div>
<!-- /.row -->
</div><!-- /.container-fluid -->
</div>
<!-- /.content -->
</div>
<!-- /.content-wrapper -->
<?php $this->load->view('admin/footer');?>
enter code here
please help me where we do mistake?
i think in name validation is not correct but i have no idea to trace error.
I found CodeIgniter form validation to show error message with load->view method, and will lost field error message if use "redirect". Currently I use one function to show form page, and another function to deal form post. class Users extends.

Answer 1

The problem is you mistake name your file input as name at here:
<input type="file" name="name" id="image">
Just change it to another name so the form_validation will work fine. Also, make sure you have loaded all needed libraries.
And one more thing, you should place:
$this->load->view('admin/header');
$this->load->view('admin/footer');
in your controller files, not in view files to follow codeigniter's MVC