BannersController.php

<?php
class BannersController extends BannersAppController {

	public $uses = array();

	public function admin_index(){
		$this->layout="Adm.admin";
		$this->Banner->recursive = 0;
        $this->set('banners', $this->paginate());
	}

	public function admin_add(){
        $this->layout="Adm.admin";

		if ($this->request->is('post')) {
            
            $this->request->data['Banner']['user_id'] = $this->Auth->user('id');
            $file = $this->upload($this->request->data['Banner']['arquivo'],'img/banner');
            
            if($file){
            	$this->request->data['Banner']['arquivo'] = $file;
            	$this->Banner->save($this->request->data);
                $this->Session->setFlash('Banner cadastrado sucesso.','default',array('class'=>'alert alert-success'));
                $this->redirect(array('action' => 'index'));
            } else {
                $this->Session->setFlash('Erro tente novamente.','default',array('class'=>'alert alert-danger'));
            }

        }

	}

	public function admin_edit($id = null) {
        $this->layout="Adm.admin";
        $this->Banner->id = $id;

        if ($this->request->is('post') || $this->request->is('put')) {
            if ($this->Banner->save($this->request->data)) {
                $this->Session->setFlash('Alteração salva.','default',array('class'=>'alert alert-success'));
                $this->redirect(array('action' => 'index'));
            } else {
                $this->Session->setFlash('Tente novamente mais tarde','default',array('class'=>'alert alert-danger'));
            }
        } else {
            $this->request->data = $this->Banner->read(null, $id);
        }
    }

    public function admin_delete($id = null) {
        $this->layout="Adm.admin";
        
        if (!$this->request->is('post')) {
            throw new MethodNotAllowedException();
        }
        $this->Banner->id = $id;
        if (!$this->Banner->exists()) {
            throw new NotFoundException(__('Banner invalido'));
        }
        if ($this->Banner->delete()) {
            $this->Session->setFlash('Banner excluido','default',array('class'=>'alert alert-success'));
            $this->redirect(array('action' => 'index'));
        }
        $this->Session->setFlash('Erro, tente novamente mais tarde','default',array('class'=>'alert alert-danger'));
        $this->redirect(array('action' => 'index'));
    }

}