hosting.features.inc in Hosting 5

Hosting features

Contains the logic used to generate the features list

File

hosting.features.inc

<?php

/**
 * @file Hosting features
 *
 * Contains the logic used to generate the features list
 */
define('HOSTING_FEATURE_DISABLED', 0);
define('HOSTING_FEATURE_ENABLED', 1);
define('HOSTING_FEATURE_REQUIRED', 2);
function hosting_feature($feature) {
  static $features = array();
  if (!sizeof($features)) {
    $features = hosting_get_features();
  }
  if ($features[$feature]['module']) {
    $return = module_exists($features[$feature]['module']) ? HOSTING_FEATURE_ENABLED : HOSTING_FEATURE_DISABLED;
  }
  else {
    $return = variable_get('hosting_feature_' . $feature, $features[$feature]['status']);
  }
  return $return;
}
function hosting_features_form() {
  $form['features'] = array(
    '#type' => 'item',
    '#title' => t('Optional system features'),
    '#value' => t('You may choose any of the additional system features from the list below.'),
  );
  $experimental = array(
    '#type' => 'fieldset',
    '#title' => t('Experimental'),
    '#collapsed' => TRUE,
    '#collapsible' => TRUE,
    '#description' => t('Features marked experimental have not been completed to a satisfactory level to be considered production ready, so use at your own risk.'),
  );
  $features = hosting_get_features(TRUE);
  foreach ($features as $feature => $info) {
    $element = array(
      '#type' => 'checkbox',
      '#title' => $info['title'],
      '#description' => $info['description'],
      '#default_value' => hosting_feature($feature),
      '#required' => hosting_feature($feature) == HOSTING_FEATURE_REQUIRED,
    );
    if ($info['group'] == 'experimental') {
      $experimental[$feature] = $element;
    }
    else {
      $form[$feature] = $element;
    }
  }
  $form['experimental'] = $experimental;
  return system_settings_form($form);
}
function hosting_features_form_submit($form_id, $values) {
  $features = hosting_get_features(TRUE);
  foreach ($features as $feature => $info) {
    $value = $values[$feature];
    $current = hosting_feature($feature);
    variable_set('hosting_feature_' . $feature, $value);
    if (!$current && $value) {
      if ($module = $features[$feature]['module']) {
        include_once 'includes/install.inc';

        // turn on module
        drupal_set_message(t("Enabling %module module", array(
          '%module' => $module,
        )));
        drupal_install_modules(array(
          $module,
        ));
        module_enable(array(
          $module,
        ));
      }
      if (function_exists($callback = $features[$feature]['enable'])) {
        $callback();
      }
    }
    if ($current && !$value) {
      if ($module = $features[$feature]['module']) {
        drupal_set_message(t("Disabling %module module", array(
          '%module' => $module,
        )));

        // turn off module
        module_disable(array(
          $module,
        ));
      }
      if (function_exists($callback = $features[$feature]['disable'])) {
        $callback();
      }
    }

    #print("$feature $current $value $module <br />");
  }
  menu_rebuild();
}
function hosting_get_features($refresh = FALSE) {
  $cache = cache_get('hosting_features');
  if (!$cache->data || $refresh) {

    ## include any optional hosting.feature.*.inc files
    $files = drupal_system_listing("hosting\\.feature\\.[a-zA-Z_]*\\.inc\$", "modules");
    if (sizeof($files)) {
      foreach ($files as $name => $info) {
        include_once $info->filename;
      }
    }
    $functions = get_defined_functions();
    foreach ($functions['user'] as $function) {
      if (preg_match('/_hosting_feature$/', $function)) {
        $hooks[] = $function;
      }
    }
    $features = array();
    foreach ($hooks as $func) {
      $features = array_merge($features, $func());
    }
    cache_set('hosting_features', 'cache', serialize($features));
    return $features;
  }
  else {
    return unserialize($cache->data);
  }
}
function hosting_feature_node_types($refresh = FALSE) {
  static $types;
  if (!is_array($types) || $refresh) {
    $features = hosting_get_features($refresh);
    foreach ($features as $feature => $info) {
      if ($info['node']) {
        $types[] = $info['node'];
      }
    }
  }
  return $types;
}

Functions

Name	Description
hosting_feature
hosting_features_form
hosting_features_form_submit
hosting_feature_node_types
hosting_get_features

Constants

Name	Description
HOSTING_FEATURE_DISABLED	@file Hosting features
HOSTING_FEATURE_ENABLED
HOSTING_FEATURE_REQUIRED