Implemented setting of default interest period.

Author: xendk

ding_provider/ding_provider_example/ding_provider_example.module

@@ -127,7 +127,7 @@ function ding_provider_example_ding_reservation_list_form_update($form, $form_st
  */
 function ding_provider_example_form_ding_cart_list_form_alter(&$form, &$form_state) {
 
-  $interest_period = (isset($account->interest_period) && $account->interest_period > 10) ? $account->interest_period : DING_LIBRARY_USER_DEFAULT_INTEREST_PERIOD;
+  $interest_period = (isset($account->interest_period) && $account->interest_period > 10) ? $account->interest_period : ding_reservation_default_interest_period();
 
   $form['options']['expiry'] = array(
     '#type' => 'date_popup',

ding_reservation/ding_reservation.admin.inc

@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * Reservation settings form.
+ */
+function ding_reservation_admin_settings_form(&$form_state) {
+  $form = array();
+
+  $form['ding_reservation_default_interest_period'] = array(
+    '#type' => 'select',
+    '#title' => t('Default interest period'),
+    '#description' => t("Reservation interest period, when the user haven't set one."),
+    '#options' => array(
+      7 => t('One week'),
+      14 => t('Two weeks'),
+      30 => t('One month'),
+      91 => t('Three months'),
+      183 => t('Six months'),
+      365 => t('One year'),
+    ),
+    '#default_value' => variable_get('ding_reservation_default_interest_period', DING_RESERVATION_DEFAULT_INTEREST_PERIOD),
+  );
+
+  return system_settings_form($form);
+}

ding_reservation/ding_reservation.module

@@ -30,6 +30,15 @@ function ding_reservation_menu() {
     'type' => MENU_CALLBACK,
   );
 
+  $items['admin/settings/ding/ding_reservation'] = array(
+    'title' => 'Reservation settings',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('ding_reservation_admin_settings_form'),
+    'access arguments' => array('administer site configuration'),
+    'type' => MENU_NORMAL_ITEM,
+    'file' => 'ding_reservation.admin.inc',
+  );
+
   return $items;
 }
 
@@ -308,3 +317,10 @@ function ding_reservation_ting_object_is($object, $class) {
     return TRUE;
   }
 }
+
+/**
+ * Returns the site default interest period in days.
+ */
+function ding_reservation_default_interest_period() {
+  return variable_get('ding_reservation_default_interest_period', DING_RESERVATION_DEFAULT_INTEREST_PERIOD);
+}