easyappointments/src/application/controllers/backend.php

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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/* ----------------------------------------------------------------------------
* Easy!Appointments - Open Source Web Scheduler
*
* @package EasyAppointments
* @author A.Tselegidis <alextselegidis@gmail.com>
* @copyright Copyright (c) 2013 - 2015, Alex Tselegidis
* @license http://opensource.org/licenses/GPL-3.0 - GPLv3
* @link http://easyappointments.org
* @since v1.0.0
* ---------------------------------------------------------------------------- */
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/**
* Backend Controller
*
* @package Controllers
*/
class Backend extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->library('session');
// Set user's selected language.
if ($this->session->userdata('language')) {
$this->config->set_item('language', $this->session->userdata('language'));
$this->lang->load('translations', $this->session->userdata('language'));
} else {
$this->lang->load('translations', $this->config->item('language')); // default
}
}
/**
* Display the main backend page.
*
* This method displays the main backend page. All users login permission can
* view this page which displays a calendar with the events of the selected
* provider or service. If a user has more priviledges he will see more menus
* at the top of the page.
*
* @param string $appointment_hash If given, the appointment edit dialog will
* appear when the page loads.
*/
public function index($appointment_hash = '') {
$this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend');
if (!$this->has_privileges(PRIV_APPOINTMENTS)) return;
$this->load->model('appointments_model');
$this->load->model('providers_model');
$this->load->model('services_model');
$this->load->model('customers_model');
$this->load->model('settings_model');
$this->load->model('roles_model');
$this->load->model('user_model');
$this->load->model('secretaries_model');
$view['base_url'] = $this->config->item('base_url');
$view['user_display_name'] = $this->user_model->get_user_display_name($this->session->userdata('user_id'));
$view['active_menu'] = PRIV_APPOINTMENTS;
$view['book_advance_timeout'] = $this->settings_model->get_setting('book_advance_timeout');
$view['company_name'] = $this->settings_model->get_setting('company_name');
$view['available_providers'] = $this->providers_model->get_available_providers();
$view['available_services'] = $this->services_model->get_available_services();
$view['customers'] = $this->customers_model->get_batch();
$this->set_user_data($view);
if ($this->session->userdata('role_slug') == DB_SLUG_SECRETARY) {
$secretary = $this->secretaries_model->get_row($this->session->userdata('user_id'));
$view['secretary_providers'] = $secretary['providers'];
} else {
$view['secretary_providers'] = array();
}
$results = $this->appointments_model->get_batch(array('hash' => $appointment_hash));
if ($appointment_hash != '' && count($results) > 0) {
$appointment = $results[0];
$appointment['customer'] = $this->customers_model->get_row($appointment['id_users_customer']);
$view['edit_appointment'] = $appointment; // This will display the appointment edit dialog on page load.
} else {
$view['edit_appointment'] = NULL;
}
$this->load->view('backend/header', $view);
$this->load->view('backend/calendar', $view);
$this->load->view('backend/footer', $view);
}
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/**
* Display the backend customers page.
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*
* In this page the user can manage all the customer records of the system.
*/
public function customers() {
$this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/customers');
if (!$this->has_privileges(PRIV_CUSTOMERS)) return;
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$this->load->model('providers_model');
$this->load->model('customers_model');
$this->load->model('services_model');
$this->load->model('settings_model');
$this->load->model('user_model');
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$view['base_url'] = $this->config->item('base_url');
$view['user_display_name'] = $this->user_model->get_user_display_name($this->session->userdata('user_id'));
$view['active_menu'] = PRIV_CUSTOMERS;
$view['company_name'] = $this->settings_model->get_setting('company_name');
$view['customers'] = $this->customers_model->get_batch();
$view['available_providers'] = $this->providers_model->get_available_providers();
$view['available_services'] = $this->services_model->get_available_services();
$this->set_user_data($view);
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$this->load->view('backend/header', $view);
$this->load->view('backend/customers', $view);
$this->load->view('backend/footer', $view);
}
/**
* Displays the backend services page.
*
* Here the admin user will be able to organize and create the services
* that the user will be able to book appointments in frontend.
*
* NOTICE: The services that each provider is able to service is managed
* from the backend services page.
*/
public function services() {
$this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/services');
if (!$this->has_privileges(PRIV_SERVICES)) return;
$this->load->model('customers_model');
$this->load->model('services_model');
$this->load->model('settings_model');
$this->load->model('user_model');
$view['base_url'] = $this->config->item('base_url');
$view['user_display_name'] = $this->user_model->get_user_display_name($this->session->userdata('user_id'));
$view['active_menu'] = PRIV_SERVICES;
$view['company_name'] = $this->settings_model->get_setting('company_name');
$view['services'] = $this->services_model->get_batch();
$view['categories'] = $this->services_model->get_all_categories();
$this->set_user_data($view);
$this->load->view('backend/header', $view);
$this->load->view('backend/services', $view);
$this->load->view('backend/footer', $view);
}
/**
* Display the backend users page.
*
* In this page the admin user will be able to manage the system users.
* By this, we mean the provider, secretary and admin users. This is also
* the page where the admin defines which service can each provider provide.
*/
public function users() {
$this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/users');
if (!$this->has_privileges(PRIV_USERS)) return;
$this->load->model('providers_model');
$this->load->model('secretaries_model');
$this->load->model('admins_model');
$this->load->model('services_model');
$this->load->model('settings_model');
$this->load->model('user_model');
$view['base_url'] = $this->config->item('base_url');
$view['user_display_name'] = $this->user_model->get_user_display_name($this->session->userdata('user_id'));
$view['active_menu'] = PRIV_USERS;
$view['company_name'] = $this->settings_model->get_setting('company_name');
$view['admins'] = $this->admins_model->get_batch();
$view['providers'] = $this->providers_model->get_batch();
$view['secretaries'] = $this->secretaries_model->get_batch();
$view['services'] = $this->services_model->get_batch();
$view['working_plan'] = $this->settings_model->get_setting('company_working_plan');
$this->set_user_data($view);
$this->load->view('backend/header', $view);
$this->load->view('backend/users', $view);
$this->load->view('backend/footer', $view);
}
/**
* Display the user/system settings.
*
* This page will display the user settings (name, password etc). If current user is
* an administrator, then he will be able to make change to the current Easy!Appointment
* installation (core settings like company name, book timeout etc).
*/
public function settings() {
$this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/settings');
if (!$this->has_privileges(PRIV_SYSTEM_SETTINGS, FALSE)
&& !$this->has_privileges(PRIV_USER_SETTINGS)) return;
$this->load->model('settings_model');
$this->load->model('user_model');
$this->load->library('session');
$user_id = $this->session->userdata('user_id');
$view['base_url'] = $this->config->item('base_url');
$view['user_display_name'] = $this->user_model->get_user_display_name($user_id);
$view['active_menu'] = PRIV_SYSTEM_SETTINGS;
$view['company_name'] = $this->settings_model->get_setting('company_name');
$view['role_slug'] = $this->session->userdata('role_slug');
$view['system_settings'] = $this->settings_model->get_settings();
$view['user_settings'] = $this->user_model->get_settings($user_id);
$this->set_user_data($view);
$this->load->view('backend/header', $view);
$this->load->view('backend/settings', $view);
$this->load->view('backend/footer', $view);
}
/**
* Check whether current user is logged in and has the required privileges to
* view a page.
*
* The backend page requires different privileges from the users to display pages. Not all
* pages are avaiable to all users. For example secretaries should not be able to edit the
* system users.
*
* @see Constant Definition In application/config/constants.php
*
* @param string $page This argument must match the roles field names of each section
* (eg "appointments", "users" ...).
* @param bool $redirect (OPTIONAL - TRUE) If the user has not the required privileges
* (either not logged in or insufficient role privileges) then the user will be redirected
* to another page. Set this argument to FALSE when using ajax.
* @return bool Returns whether the user has the required privileges to view the page or
* not. If the user is not logged in then he will be prompted to log in. If he hasn't the
* required privileges then an info message will be displayed.
*/
private function has_privileges($page, $redirect = TRUE) {
// Check if user is logged in.
$user_id = $this->session->userdata('user_id');
if ($user_id == FALSE) { // User not logged in, display the login view.
if ($redirect) {
header('Location: ' . $this->config->item('base_url') . '/index.php/user/login');
}
return FALSE;
}
// Check if the user has the required privileges for viewing the selected page.
$role_slug = $this->session->userdata('role_slug');
$role_priv = $this->db->get_where('ea_roles', array('slug' => $role_slug))->row_array();
if ($role_priv[$page] < PRIV_VIEW) { // User does not have the permission to view the page.
if ($redirect) {
header('Location: ' . $this->config->item('base_url') . '/index.php/user/no_privileges');
}
return FALSE;
}
return TRUE;
}
/**
* Set the user data in order to be available at the view and js code.
*
* @param array $view Contains the view data.
*/
public function set_user_data(&$view) {
$this->load->model('roles_model');
// Get privileges
$view['user_id'] = $this->session->userdata('user_id');
$view['user_email'] = $this->session->userdata('user_email');
$view['role_slug'] = $this->session->userdata('role_slug');
$view['privileges'] = $this->roles_model->get_privileges($this->session->userdata('role_slug'));
}
/**
* This method will update the installation to the latest available
* version in the server. IMPORTANT: The code files must exist in the
* server, this method will not fetch any new files but will update
* the database schema.
*
* This method can be used either by loading the page in the browser
* or by an ajax request. But it will answer with json encoded data.
*/
public function update() {
try {
if (!$this->has_privileges(PRIV_SYSTEM_SETTINGS, TRUE))
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throw new Exception('You do not have the required privileges for this task!');
$this->load->library('migration');
if (!$this->migration->current())
throw new Exception($this->migration->error_string());
echo json_encode(AJAX_SUCCESS);
} catch(Exception $exc) {
echo json_encode(array(
'exceptions' => array(exceptionToJavaScript($exc))
));
}
}
}
/* End of file backend.php */
/* Location: ./application/controllers/backend.php */