<?php 
        
        class Categories extends CI_Controller {
        
            public function index()
            {
                $data['title'] = 'Categories';
                $data['categories'] = $this->category_model->get_categories();

                $this->load->view('templates/header');
                $this->load->view('categories/index', $data);
                $this->load->view('templates/footer');

            }
            //To create a category
            public function create()
            {
                //check login
            if(!$this->session->userdata('logged_in')){
            redirect('users/login');
            }
                $data['title'] = 'Create category';
                $this->form_validation->set_rules('name','Name','required');

                if($this->form_validation->run() === FALSE){
                    $this->load->view('templates/header');
                    $this->load->view('categories/create', $data);
                    $this->load->view('templates/footer');
                }
                else
                {
                    $this->category_model->create_category();
                    //flash message
                    $this->session->set_flashdata('category_created','New category has been created');
                    redirect('categories');                   
                }
            }

            //to display the posts of each particular category
            public function posts($id)
            {
                $data['title'] = $this->category_model->get_category($id)->name;
                $data['posts'] = $this->post_model->get_posts_by_category($id);

                $this->load->view('templates/header');
                $this->load->view('posts/index', $data);
                $this->load->view('templates/footer');
            }

            public function delete($id){
                // Check login
                if(!$this->session->userdata('logged_in')){
                    redirect('users/login');
                }
    
                $this->category_model->delete_category($id);
    
                // Set message
                $this->session->set_flashdata('category_deleted', 'Your category has been deleted');
    
                redirect('categories');
            }

        
        }