catering.module

<?php

/**
 * @file
 * Provides custom pages for Meal Choices form and admin view of meal types.
 */

/**
 * Implements hook_menu().
 */
function catering_menu() {

  $items = array();

  $items['catering/meal-choices'] = array(
    'title' => 'Meal Choices',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('catering_meal_choices'),
    'access callback' => TRUE,
    'type' => MENU_NORMAL_ITEM,
    'file' => 'catering.inc',
    'menu_name' => 'main-menu',
  );
  $items['catering/meal-types'] = array(
    'title' => 'Meal Type Totals',
    'page callback' => 'meal_choices_submitted_value_callback',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
    'menu_name' => 'main-menu',
  );
  $items['admin/config/catering'] = array(
    'title' => 'Catering',
    'description' => 'Custom configurations for Catering website.',
    'position' => 'right',
    'page callback' => 'system_admin_menu_block_page',
    'access arguments' => array('administer site configuration'),
    'file path' => drupal_get_path('module', 'system'),
    'file' => 'system.admin.inc',
    'weight' => 100,
  );

  $items['admin/config/catering/role-notification'] = array(
    'title' => 'Special instructions notification',
    'description' => 'Choose the role that should receive email notifications of special instructions.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('_catering_role_notification'),
    'access callback' => 'user_access',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
  );

  return $items;

}

/**
 * Custom function for configuration page to select user role to receive
 * notifications when special instructions are submitted.
 */
function _catering_role_notification() {
  $form = array();

  // Get user roles by name, instead of rid, excluding anonymous and
  // restricting to users with specified permission.
  $user_role_name = array_flip(user_roles($membersonly = TRUE, $permission = 'administer site configuration'));
  // Use 'administrator' role (provided out of the box) as default, if available.
  $admin_default = isset($user_role_name['administrator']) ? $user_role_name['administrator'] : "";

  $form['catering_notify_role'] = array(
    '#type' => 'select',
    '#title' => t('Role to receive notifications'),
    '#description' => t('Select the user role that will receive email ' .
      'notifications when users submit special instructions'),
    '#default_value' => variable_get('catering_notify_role', $admin_default),
    '#options' => user_roles($membersonly = TRUE, $permission = 'administer site configuration'),
    '#empty_option' => t('No notifications'),
    '#required' => FALSE,
  );

  if ($form['catering_notify_role']['#default_value']) {
    variable_set('catering_notify_role', $form['catering_notify_role']['#default_value']);
  };

  return system_settings_form($form);

}

/**
 * Page callback for admin view of total meal types.
 */
function meal_choices_submitted_value_callback() {
  $query = db_query("SELECT COUNT(*)
    AS meals_type
    FROM catering_meal_choices
    GROUP BY
      meal_type"
  );

  $meal_types = $query->fetchAll();

  $meat = $fish = $veg = 0;

  if ($meal_types) {
    $meat = isset($meal_types[0]) ? $meal_types[0]->meals_type : 0;
    $fish = isset($meal_types[1]) ? $meal_types[1]->meals_type : 0;
    $veg = isset($meal_types[2]) ? $meal_types[2]->meals_type : 0;
  }

  $output = theme('catering_meal_types', array(
    'meat' => $meat,
    'fish' => $fish,
    'veg' => $veg,
  ));

  return $output;
}

/**
 * Implements hook_theme().
 */
function catering_theme($existing, $type, $theme, $path) {
  return array(
    'catering_meal_types' => array(
      'variables' => array(
        'meat' => NULL,
        'fish' => NULL,
        'veg' => NULL,
      ),
      'template' => 'page--catering--meal-types',
      'path' => drupal_get_path('module', 'catering') . '/templates'
    )
  );
}