javascript - delete function not working in codeigniter -

my delete function not working. after clicking confirm message it's not deleting.

my view looks this:

<div id="selected-color" >     <?php if ($this->session->userdata('edit_colors')) {         foreach ($this->session->userdata('edit_colors') $color)         { ?>             <div class="col-md-2 selected-color">                 <div class="color-box" style="background-color:<?php echo $color; ?>"></div>                 <div class="selected-color-btn" color='<?php echo $color; ?>' data-toggle="modal" >                     <input type="hidden" name="color_id" value="<?php echo $color; ?>">                      <a class="fa fa-close" data-toggle="modal" onclick='return deleteitem()'  name="delete" id="title" img="img1446224811.jpg" big-img=""  title="delete" href="<?php echo base_url();?>admin_control/delete_color/<?php echo $result->id;?>/<?php echo $color;?>"><i class="fa fa-trash-o"  data-toggle="tooltip" data-placement="top" title="delete"></i></a></span>                 </div>             </div>          <?php          }     }?> </div>         </div> 

my javascript looks this:

<script type="text/javascript">     function deleteitem() {         var checkstr = confirm('are sure want delete this?');         if (!checkstr) {             return false;         }     } </script> 

my controller looks this:

public function delete_color($id = null) {      $this->roxmodel->delete_color($id);     redirect('admin_control/view_images'); } 

my model looks this:

public function delete_color($id) {      $this->db->where('product_color.id', $id);     if ($this->db->delete('product_color'))     {         return true;     }     else     {       return false;     } } 

my table looks this:

 id | product_id |  color  | ---------------------------- 711 |   341      | #f79646 | 712 |   341      | #31859b | 713 |   341      | #c0504d | 745 |   343      | #c0504d | 749 |   347      | #1f497d | 779 |   348      | #c0504d | 

i guess problem in anchor tag ...

my controler edit function looks this...

public function edit_gallery($id) {     $data['active_mn']='add_images';    $data['active_mn']='view_images';         if($_post)       {            $this->form_validation->set_rules('image','image','callback_is_upload_image');            if($this->form_validation->run()==true)            {       if($this->roxmodel->image_update1())             {               $this->session->unset_userdata('image');               //$this->session->unset_userdata('colors');               $this->session->set_flashdata('message','updated successfully');               redirect('admin_control/view_images');             }           else             {               $this->session->set_flashdata('message','update failed');               redirect('admin_control/view_images');             }       }     }       if($id){       $id=$this->uri->segment(3);       $data['result']=$this->roxmodel->view_gallery_id($id);       //$data['query']=$this->admin_model->get_all('products')->result();      // $data['detail']=$this->roxmodel->get_products(null,null,$id);       $colors=$this->roxmodel->get_product_color(null,$id)->result();       if($colors)         {       foreach ($colors $row){ $color[]=$row->color; }       $this->session->set_userdata('edit_colors',$color);         }       $this->session->set_userdata('image',json_decode($data['result']->image));       $data['category']=$this->roxmodel->get_super_category();          $data['sub_category']=$this->roxmodel->get_sub_category();       }        $this->load->view('edit_image',$data);    } 

see view there how can corresponding id value

see how delete records. have made function in base model this:

    public function delete($id){         $filter = $this->_primary_filter;         $id = $filter($id);          if (!$id) {             return false;         }         $this->db->where($this->_primary_key, $id);         $this->db->limit(1);         $this->db->delete($this->_table_name);     } 

then in controller initialize :

    public function delete($id) {    $this->model->delete($id);    redirect('admin/dashboard'); } 

in view anchor tag :

<td><?php echo btn_delete('controller/delete/' . $user->id); ?></td> 

also have created helper edit , delete button:

function btn_delete ($uri) {     return anchor($uri, '<i class="glyphicon glyphicon-remove"></i>', array(         'onclick' => "return confirm('you delete record. cannot undone. sure?');"     )); } 

my_model.php

<?php class my_model extends ci_model {  protected $_table_name = ''; protected $_primary_key = 'id'; protected $_primary_filter = 'intval'; protected $_order_by = ''; public $rules = array(); protected $_timestamps = false;  function __construct() {     parent::__construct(); }  public function array_from_post($fields){     $data = array();     foreach ($fields $field) {         $data[$field] = $this->input->post($field);     }     return $data; }  public function array_from_get($fields){     $data = array();     foreach ($fields $field) {         $data[$field] = $this->input->get($field);     }     return $data; }   public function get($id = null, $single = false){      if ($id != null) {         $filter = $this->_primary_filter;         $id = $filter($id);         $this->db->where($this->_primary_key, $id);         $method = 'row';     }     elseif($single == true) {         $method = 'row';     }     else {         $method = 'result';     }       return $this->db->get($this->_table_name)->$method(); }  public function get_by($where, $single = false){     $this->db->where($where);     return $this->get(null, $single); }  public function save($data, $id = null){         // set timestamps     if ($this->_timestamps == true) {         $now = date('y-m-d h:i:s');         $id || $data['created'] = $now;         $data['modified'] = $now;     }      // insert     if ($id === null) {         !isset($data[$this->_primary_key]) || $data[$this->_primary_key] = null;         $this->db->set($data);         $this->db->insert($this->_table_name);         $id = $this->db->insert_id();     }     // update     else {         $filter = $this->_primary_filter;         $id = $filter($id);         $this->db->set($data);         $this->db->where($this->_primary_key, $id);         $this->db->update($this->_table_name);     }      return $id; }  public function delete($id){     $filter = $this->_primary_filter;     $id = $filter($id);      if (!$id) {         return false;     }     $this->db->where($this->_primary_key, $id);     $this->db->limit(1);     $this->db->delete($this->_table_name); } 

}