Add new system-wide setting that enable users to choose the first day of the week. (#471)

The setting change the display of weeks shown in backend and booking page calendars.
Work plans and break lists in the 'settings' page are still displayed starting on Sunday.

src/application/config/config.php

@@ -273,7 +273,7 @@ $config['cache_path'] = __DIR__ . '/../../storage/cache/';
 | new release.
 |
 */
-$config['cache_busting_token'] = '93GT3';
+$config['cache_busting_token'] = '93GX4';
 
 /*
 |--------------------------------------------------------------------------

src/application/config/migration.php

@@ -37,7 +37,7 @@ $config['migration_table'] = 'ea_migrations';
 | be upgraded / downgraded to.
 |
 */
-$config['migration_version'] = 12; // current
+$config['migration_version'] = 13; // current
 
 
 /*

src/application/controllers/Appointments.php

@@ -76,6 +76,7 @@ class Appointments extends CI_Controller {
             $company_name = $this->settings_model->get_setting('company_name');
             $date_format = $this->settings_model->get_setting('date_format');
             $time_format = $this->settings_model->get_setting('time_format');
+            $first_weekday = $this->settings_model->get_setting('first_weekday');
             $display_cookie_notice = $this->settings_model->get_setting('display_cookie_notice');
             $cookie_notice_content = $this->settings_model->get_setting('cookie_notice_content');
             $display_terms_and_conditions = $this->settings_model->get_setting('display_terms_and_conditions');
@@ -147,6 +148,7 @@ class Appointments extends CI_Controller {
                 'customer_token' => $customer_token,
                 'date_format' => $date_format,
                 'time_format' => $time_format,
+                'first_weekday' => $first_weekday,
                 'appointment_data' => $appointment,
                 'provider_data' => $provider,
                 'customer_data' => $customer,

src/application/controllers/Backend.php

@@ -70,6 +70,7 @@ class Backend extends CI_Controller {
         $view['book_advance_timeout'] = $this->settings_model->get_setting('book_advance_timeout');
         $view['date_format'] = $this->settings_model->get_setting('date_format');
         $view['time_format'] = $this->settings_model->get_setting('time_format');
+        $view['first_weekday'] = $this->settings_model->get_setting('first_weekday');
         $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();
@@ -132,6 +133,7 @@ class Backend extends CI_Controller {
         $view['company_name'] = $this->settings_model->get_setting('company_name');
         $view['date_format'] = $this->settings_model->get_setting('date_format');
         $view['time_format'] = $this->settings_model->get_setting('time_format');
+        $view['first_weekday'] = $this->settings_model->get_setting('first_weekday');
         $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();
@@ -170,6 +172,7 @@ class Backend extends CI_Controller {
         $view['company_name'] = $this->settings_model->get_setting('company_name');
         $view['date_format'] = $this->settings_model->get_setting('date_format');
         $view['time_format'] = $this->settings_model->get_setting('time_format');
+        $view['first_weekday'] = $this->settings_model->get_setting('first_weekday');
         $view['services'] = $this->services_model->get_batch();
         $view['categories'] = $this->services_model->get_all_categories();
         $this->set_user_data($view);
@@ -207,6 +210,7 @@ class Backend extends CI_Controller {
         $view['company_name'] = $this->settings_model->get_setting('company_name');
         $view['date_format'] = $this->settings_model->get_setting('date_format');
         $view['time_format'] = $this->settings_model->get_setting('time_format');
+        $view['first_weekday'] = $this->settings_model->get_setting('first_weekday');
         $view['admins'] = $this->admins_model->get_batch();
         $view['providers'] = $this->providers_model->get_batch();
         $view['secretaries'] = $this->secretaries_model->get_batch();
@@ -320,14 +324,13 @@ class Backend extends CI_Controller {
             {
                 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());
             }
-
+            
             $view = ['success' => TRUE];
         }
         catch (Exception $exc)

src/application/language/arabic/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'صيغة التاريخ';
 $lang['date_format_hint'] = 'تغيير صيغة وعرض التاريخ (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'ليتم تضمينه في صفحة الحجز Google Analytics ID أضف معرّف';
 $lang['availabilities_type'] = 'نوع التوفر أو الإتاحة';
 $lang['flexible'] = 'مرن';

src/application/language/bulgarian/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Формат на Дата';
 $lang['date_format_hint'] = 'Промяна на дормат за показ на дата (D - дата, M - месец, Y - година).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Добавете Google Analytics ID за да бъде включена статистика в страницата за запазване на час.';
 $lang['availabilities_type'] = 'Типове на работен период.';
 $lang['flexible'] = 'Гъвкав';

src/application/language/chinese/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/danish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/dutch/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Datum formaat';
 $lang['date_format_hint'] = 'Verander het datum formaat (D - dag, M - maand, Y - jaar).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Voeg je Google Analytics ID toe om deze te gebruiken op je boekings pagina.';
 $lang['availabilities_type'] = 'Beschikbaarheidstype';
 $lang['flexible'] = 'Flexibel';

src/application/language/english/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/finnish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Päiväyksen muoto';
 $lang['date_format_hint'] = 'Vaihda päiväyksen esitysmuoto (D - Päivä, M - Kuukausi, Y - Vuosi).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Lisää Google Analytics ID varaussivulle.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/french/translations_lang.php

@@ -274,6 +274,8 @@ $lang['date_format'] = 'Format des Dates';
 $lang['date_format_hint'] = 'Change le format d\'affichage des dates (D - Jour, M - Mois, Y - Année).';
 $lang['time_format'] = 'Format de l\'Heure';
 $lang['time_format_hint'] = 'Change le format d\'affichage de l\'Heure (H - Heures, M - Minutes).';
+$lang['first_weekday'] = 'Premier jour de la semaine';
+$lang['first_weekday_hint'] = 'Définit le premier jour de la semaine calendaire.';
 $lang['google_analytics_code_hint'] = 'Renseignez l\'ID Google Analytics à utiliser dans la page des réservations.';
 $lang['availabilities_type'] = 'Type de disponibilités';
 $lang['flexible'] = 'Flexible';

src/application/language/german/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Datumsformat';
 $lang['date_format_hint'] = 'Ändern Sie das Datumsanzeigeformat (D - Datum, M - Monat, Y - Jahr).';
 $lang['time_format'] = 'Zeitformat';
 $lang['time_format_hint'] = 'Ändern Sie das Zeitanzeigeformat (H - Stunden, M - Minuten).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Fügen Sie Ihre Google Analytics-ID hinzu, das auf der Buchungsseite enthalten wird.';
 $lang['availabilities_type'] = 'Verfügungstyp';
 $lang['flexible'] = 'Flexibel';

src/application/language/greek/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Μορφή Ημερομηνίας';
 $lang['date_format_hint'] = 'Αλλάξτε την μορφή ημερομηνίας (D - Ημέρα, M - Μήνας, Y - Χρόνος).';
 $lang['time_format'] = 'Μορφή Ώρας';
 $lang['time_format_hint'] = 'Αλλάξτε την μορφή ώρας (H - Ώρα, M - Λεπτά).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Προσθέστε τον Google Analytics ID σας το οποίο θα συμπεριληφθεί στην σελίδα κράτησης.';
 $lang['availabilities_type'] = 'Τύπος Διαθεσιμοτήτων';
 $lang['flexible'] = 'Ευέλικτος';

src/application/language/hindi/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/hungarian/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/italian/translations_lang.php

@@ -282,6 +282,8 @@ $lang['date_format'] = 'Formato data';
 $lang['date_format_hint'] = 'Cambia il formato di visualizzazione della data (D - Giorno, M - Mese, Y - Anno).';
 $lang['time_format'] = 'Formato orario';
 $lang['time_format_hint'] = 'Cambia il formato di visualizzazione dell\'orario. (H - Ore, M - Minuti)';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Aggiunti il tuo ID di Google Analytics per includerlo nella pagina di prenotazione.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/japanese/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/luxembourgish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/polish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/portuguese-br/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Formato da Data';
 $lang['date_format_hint'] = 'Altera o formato de visualização da Data (D - Data, M - Mes, Y - Ano).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Adicione o seu ID do Google Analytics para ser incluido na pagina de agendamentos.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/portuguese/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = 'Time Format';
 $lang['time_format_hint'] = 'Change the time display format (H - Hours, M - Minutes).';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/romanian/translations_lang.php

@@ -282,6 +282,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = '';
 $lang['time_format_hint'] = '';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/russian/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = '';
 $lang['time_format_hint'] = '';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/language/slovak/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Formát dátumu';
 $lang['date_format_hint'] = 'Zmeňte formát zobrazenia dátumu (D - Dátum, M - Mesiac, Y - Rok).';
 $lang['time_format'] = '';
 $lang['time_format_hint'] = '';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Pridajte svoje ID služby Google Analytics, aby ste bola zahrnutá do stránky rezervácie.';
 $lang['availabilities_type'] = 'Typ dostupnosti';
 $lang['flexible'] = 'Flexibilný';

src/application/language/spanish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Formato de Fecha';
 $lang['date_format_hint'] = 'Cambia el formato de fecha para mostrar (D - Día, M - Mes, Y - Año).';
 $lang['time_format'] = '';
 $lang['time_format_hint'] = '';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Agrega tu ID de Google Analytics para ser incluido en la página de reservas.';
 $lang['availabilities_type'] = 'Tipos disponibles';
 $lang['flexible'] = 'Flexible';

src/application/language/turkish/translations_lang.php

@@ -276,6 +276,8 @@ $lang['date_format'] = 'Date Format';
 $lang['date_format_hint'] = 'Change the date display format (D - Date, M - Month, Y - Year).';
 $lang['time_format'] = '';
 $lang['time_format_hint'] = '';
+$lang['first_weekday'] = 'First day of week';
+$lang['first_weekday_hint'] = 'Set the first day of the calendar week.';
 $lang['google_analytics_code_hint'] = 'Add your Google Analytics ID to be included in the booking page.';
 $lang['availabilities_type'] = 'Availabilities Type';
 $lang['flexible'] = 'Flexible';

src/application/migrations/013_add_weekday_start_setting.php

@@ -0,0 +1,35 @@
+<?php defined('BASEPATH') OR exit('No direct script access allowed');
+
+/* ----------------------------------------------------------------------------
+ * Easy!Appointments - Open Source Web Scheduler
+ *
+ * @package     EasyAppointments
+ * @author      A.Tselegidis <alextselegidis@gmail.com>
+ * @copyright   Copyright (c) 2013 - 2018, Alex Tselegidis
+ * @license     http://opensource.org/licenses/GPL-3.0 - GPLv3
+ * @link        http://easyappointments.org
+ * @since       v1.3.2
+ * ---------------------------------------------------------------------------- */
+
+class Migration_Add_weekday_start_setting extends CI_Migration {
+    public function up()
+    {
+        $this->load->model('settings_model');
+
+        try
+        {
+            $this->settings_model->get_setting('first_weekday');
+        }
+        catch (Exception $exception)
+        {
+            $this->settings_model->set_setting('first_weekday', 'sunday');
+        }
+    }
+
+    public function down()
+    {
+        $this->load->model('settings_model');
+
+        $this->settings_model->remove_setting('first_weekday');
+    }
+}

src/application/views/appointments/book.php

@@ -370,6 +370,7 @@
             customerToken       : <?= json_encode($customer_token) ?>,
             dateFormat          : <?= json_encode($date_format) ?>,
             timeFormat          : <?= json_encode($time_format) ?>,
+            firstWeekday        : <?= json_encode($first_weekday) ?>,
             displayCookieNotice : <?= json_encode($display_cookie_notice === '1') ?>,
             appointmentData     : <?= json_encode($appointment_data) ?>,
             providerData        : <?= json_encode($provider_data) ?>,

src/application/views/backend/calendar.php

@@ -20,6 +20,7 @@
         'bookAdvanceTimeout'    : <?= $book_advance_timeout ?>,
         'dateFormat'            : <?= json_encode($date_format) ?>,
         'timeFormat'            : <?= json_encode($time_format) ?>,
+        'firstWeekday'          : <?= json_encode($first_weekday) ?>,
         'editAppointment'       : <?= json_encode($edit_appointment) ?>,
         'customers'             : <?= json_encode($customers) ?>,
         'secretaryProviders'    : <?= json_encode($secretary_providers) ?>,

src/application/views/backend/settings.php

@@ -135,6 +135,23 @@
                                     <?= lang('time_format_hint') ?>
                                 </span>
                             </div>
+                            <div class="form-group">
+                                <label for="first-weekday">
+                                    <?= lang('first_weekday') ?>
+                                </label>
+                                <select class="form-control" id="first-weekday" data-field="first_weekday">
+                                    <option value="sunday"><?= lang('sunday') ?></option>
+                                    <option value="monday"><?= lang('monday') ?></option>
+                                    <option value="tuesday"><?= lang('tuesday') ?></option>
+                                    <option value="wednesday"><?= lang('wednesday') ?></option>
+                                    <option value="thursday"><?= lang('thursday') ?></option>
+                                    <option value="friday"><?= lang('friday') ?></option>
+                                    <option value="saturday"><?= lang('saturday') ?></option>
+                                </select>
+                                <span class="help-block">
+                                    <?= lang('first_weekday_hint') ?>
+                                </span>
+                            </div>
                             <div class="form-group">
                                 <label><?= lang('customer_notifications') ?></label>
                                 <br>

src/assets/js/backend_calendar_appointments_modal.js

@@ -389,6 +389,9 @@ window.BackendCalendarAppointmentsModal = window.BackendCalendarAppointmentsModa
                 throw new Error('Invalid GlobalVariables.dateFormat value.');
         }
 
+        var fDay = GlobalVariables.firstWeekday;
+        var fDaynum = GeneralFunctions.getWeekDayId(fDay);
+
         $dialog.find('#start-datetime').datetimepicker({
             dateFormat: dateFormat,
             timeFormat: GlobalVariables.timeFormat === 'regular' ? 'h:mm TT' : 'HH:mm',
@@ -415,7 +418,7 @@ window.BackendCalendarAppointmentsModal = window.BackendCalendarAppointmentsModa
             timeText: EALang.time,
             hourText: EALang.hour,
             minuteText: EALang.minutes,
-            firstDay: 0
+            firstDay: fDaynum
         });
         $dialog.find('#start-datetime').datetimepicker('setDate', startDatetime);
 
@@ -445,7 +448,7 @@ window.BackendCalendarAppointmentsModal = window.BackendCalendarAppointmentsModa
             timeText: EALang.time,
             hourText: EALang.hour,
             minuteText: EALang.minutes,
-            firstDay: 0
+            firstDay: fDaynum
         });
         $dialog.find('#end-datetime').datetimepicker('setDate', endDatetime);
     };

src/assets/js/backend_calendar_default_view.js

@@ -785,16 +785,6 @@ window.BackendCalendarDefaultView = window.BackendCalendarDefaultView || {};
             $calendar.fullCalendar('removeEvents');
             $calendar.fullCalendar('addEventSource', calendarEvents);
 
-            var weekDays = [
-                'sunday', 
-                'monday', 
-                'tuesday', 
-                'wednesday', 
-                'thursday', 
-                'friday', 
-                'saturday' 
-            ];
-
             // :: ADD PROVIDER'S UNAVAILABLE TIME PERIODS
             var calendarView = $calendar.fullCalendar('getView').name;
 
@@ -805,12 +795,13 @@ window.BackendCalendarDefaultView = window.BackendCalendarDefaultView || {};
                         var workingPlanBulk = jQuery.parseJSON(provider.settings.working_plan);
                         var unavailablePeriod;
 
-                        // Sort the working plan starting with Sunday as the first weekday to correctly align breaks in the calendar display
-                        workingPlan = GeneralFunctions.sortWeekDict(workingPlanBulk,0); // 0 is the ID for Sunday
+                        // Sort the working plan starting with the first day as set in General settings to correctly align breaks in the calendar display
+                        var fDaynum = GeneralFunctions.getWeekDayId(GlobalVariables.firstWeekday);
+                        workingPlan = GeneralFunctions.sortWeekDict(workingPlanBulk,fDaynum);
 
                         switch (calendarView) {
                             case 'agendaDay':
-                                var selectedDayName = weekDays[$calendar.fullCalendar('getView').start.format('d')];
+                                var selectedDayName = GeneralFunctions.getWeekDayName(parseInt($calendar.fullCalendar('getView').start.format('d')));
 
                                 // Add custom unavailable periods.
                                 $.each(response.unavailables, function (index, unavailable) {
@@ -1091,12 +1082,15 @@ window.BackendCalendarDefaultView = window.BackendCalendarDefaultView || {};
 
         var defaultView = window.innerWidth < 468 ? 'agendaDay' : 'agendaWeek';
 
+        var fDay = GlobalVariables.firstWeekday;
+        var fDaynum = GeneralFunctions.getWeekDayId(fDay);
+
         // Initialize page calendar
         $('#calendar').fullCalendar({
             defaultView: defaultView,
             height: _getCalendarHeight(),
             editable: true,
-            firstDay: 0,
+            firstDay: fDaynum,
             snapDuration: '00:30:00',
             timeFormat: timeFormat,
             slotLabelFormat: slotTimeFormat,

src/assets/js/backend_calendar_unavailabilities_modal.js

@@ -180,6 +180,8 @@ window.BackendCalendarUnavailabilitiesModal = window.BackendCalendarUnavailabili
                 break;
         }
 
+        var fDay = GlobalVariables.firstWeekday;
+        var fDaynum = GeneralFunctions.getWeekDayId(fDay);
 
         $dialog.find('#unavailable-start').datetimepicker({
             dateFormat: dateFormat,
@@ -207,7 +209,7 @@ window.BackendCalendarUnavailabilitiesModal = window.BackendCalendarUnavailabili
             timeText: EALang.time,
             hourText: EALang.hour,
             minuteText: EALang.minutes,
-            firstDay: 0
+            firstDay: fDaynum
         });
         $dialog.find('#unavailable-start').val(start);
 
@@ -237,7 +239,7 @@ window.BackendCalendarUnavailabilitiesModal = window.BackendCalendarUnavailabili
             timeText: EALang.time,
             hourText: EALang.hour,
             minuteText: EALang.minutes,
-            firstDay: 0
+            firstDay: fDaynum
         });
         $dialog.find('#unavailable-end').val(end);
 

src/assets/js/frontend_book.js

@@ -104,9 +104,12 @@ window.FrontendBook = window.FrontendBook || {};
             }
         });
 
+        var fDay = GlobalVariables.firstWeekday;
+        var fDaynum = GeneralFunctions.getWeekDayId(fDay);
+
         $('#select-date').datepicker({
             dateFormat: 'dd-mm-yy',
-            firstDay: 0,
+            firstDay: fDaynum,
             minDate: 0,
             defaultDate: Date.today(),
 

src/assets/js/general_functions.js

@@ -431,6 +431,60 @@ window.GeneralFunctions = window.GeneralFunctions || {};
         return result;
     };
 
+    /**
+     * Get the Id of a Weekday using the US week format and day names (Sunday=0) as used in the JS code of the appli, case insensitive, short and long names supported.
+     *
+     * @param {String} weekDayName The weekday name amongs Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.
+
+     * @return {Integer} Returns the ID of the weekday.
+     */
+    exports.getWeekDayId = function (weekDayName) {
+        var result;
+
+        switch (weekDayName.toLowerCase()) {
+
+            case 'sunday':
+            case 'sun':
+                result = 0;
+                break;
+
+            case 'monday':
+            case 'mon':
+                result = 1;
+                break;
+
+            case 'tuesday':
+            case 'tue':
+                result = 2;
+                break;
+
+            case 'wednesday':
+            case 'wed':
+                result = 3;
+                break;
+
+            case 'thursday':
+            case 'thu':
+                result = 4;
+                break;
+
+            case 'friday':
+            case 'fri':
+                result = 5;
+                break;                
+
+            case 'saturday':
+            case 'sat':
+                result = 6;
+                break;                
+                
+            default:
+                throw new Error('Invalid weekday name provided!', weekDayName);
+        }
+
+        return result;
+    };
+
     /**
      * Get the name in lowercase of a Weekday using its Id.
      *

src/assets/sql/data.sql

@@ -22,6 +22,7 @@ VALUES
     ('display_terms_and_conditions', '0'),
     ('terms_and_conditions_content', 'Terms and conditions content.'),
     ('display_privacy_policy', '0'),
-    ('privacy_policy_content', 'Privacy policy content.');
+    ('privacy_policy_content', 'Privacy policy content.'),
+    ('first_weekday', 'sunday');
 
-INSERT INTO `ea_migrations` VALUES ('12');
+INSERT INTO `ea_migrations` VALUES ('13');