.gitignore

@@ -20,3 +20,6 @@ vendor/
 
 # Go workspace file
 go.work
+
+#IDE files
+*.geany

controllers/addOfficeHourHandler.go

@@ -32,6 +32,7 @@ type maskData struct {
 	Roomname               string
 	Name                   string
 	Email                  string
+	SubscribeToMailinglist bool
 	Info                   string
 	Errors                 []string
 	Config                 config.Config
@@ -129,6 +130,9 @@ func (b *BaseHandler) AddOfficeHourHandler(w http.ResponseWriter, req *http.Requ
 	} else if !(b.config.Tutor.MailSuffix == "" || strings.HasSuffix(email.Address, "@"+b.config.Tutor.MailSuffix) || strings.HasSuffix(email.Address, "."+b.config.Tutor.MailSuffix)) {
 		errors = append(errors, fmt.Sprintf("Mailaddresse muss auf „%s“ enden.", b.config.Tutor.MailSuffix))
 	}
+
+	subscribeToMailinglist := req.FormValue("subscribeToMailinglist") == "subscribe"
+
 	info := req.FormValue("info")
 
 	allowed, err := b.officeHourRepo.AllowedAt(date, duration, room, true)
@@ -155,6 +159,7 @@ func (b *BaseHandler) AddOfficeHourHandler(w http.ResponseWriter, req *http.Requ
 			roomname,
 			name,
 			email.Address,
+			subscribeToMailinglist,
 			info,
 			errors,
 			b.config,
@@ -164,7 +169,7 @@ func (b *BaseHandler) AddOfficeHourHandler(w http.ResponseWriter, req *http.Requ
 		// if the data for a new office hour was sent correctly, save it.
 
 		officeHour := models.OfficeHour{Id: 0,
-			Tutor:    models.Tutor{Id: 0, Name: name, Email: email.Address},
+			Tutor:    models.Tutor{Id: 0, Name: name, Email: email.Address, SubscribeToMailinglist: subscribeToMailinglist},
 			Date:     date,
 			Room:     room,
 			RoomName: roomname,

controllers/timetable.go

@@ -37,7 +37,7 @@ func (b *BaseHandler) GetTimetable(officeHours []models.OfficeHour) (map[models.
 		}
 	}
 	slots := []int{1, 1, 1, 1, 1}
-	for date, _ := range timetable {
+	for date := range timetable {
 		if slots[date.Day] < len(timetable[date]) {
 			slots[date.Day] = len(timetable[date])
 		}

go.sum

@@ -1,6 +1,4 @@
 github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
 github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
-github.com/mattn/go-sqlite3 v1.14.18 h1:JL0eqdCOq6DJVNPSvArO/bIV9/P7fbGrV00LZHc+5aI=
-github.com/mattn/go-sqlite3 v1.14.18/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/mattn/go-sqlite3 v1.14.19 h1:fhGleo2h1p8tVChob4I9HpmVFIAkKGpiukdrgQbWfGI=
 github.com/mattn/go-sqlite3 v1.14.19/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=

models/tutor.go

@@ -5,6 +5,10 @@ type Tutor struct {
 	Id    int
 	Name  string
 	Email string
+
+	// Does the tutor want to subscribe to the mailinglist for student assistents?
+	// This information has to be extracted from the database by hand.
+	SubscribeToMailinglist bool
 }
 
 type TutorRepository interface {

officeHoursMysql.sql

@@ -21,7 +21,8 @@ CREATE TABLE `room` (
 CREATE TABLE `tutor` (
   `id` INTEGER PRIMARY KEY AUTO_INCREMENT,
   `name` tinytext DEFAULT NULL,
-  `email` tinytext DEFAULT NULL
+  `email` tinytext DEFAULT NULL,
+  `subscribeToMailinglist` BOOL DEFAULT false
 );
 
 --

officeHoursSQLite.sql

@@ -53,7 +53,8 @@ DROP TABLE IF EXISTS `tutor`;
 CREATE TABLE `tutor` (
   `id` INTEGER PRIMARY KEY,
   `name` tinytext DEFAULT NULL,
-  `email` tinytext DEFAULT NULL
+  `email` tinytext DEFAULT NULL,
+  `subscribeToMailinglist` BOOL DEFAULT false
 );
 
 --

repositories/tutor.go

@@ -50,7 +50,7 @@ func (r *TutorRepo) Add(tutor models.Tutor) (int, error) {
 	//Don't add identical tutors
 	existentTutor, err := r.FindByNameAndEmail(tutor.Name, tutor.Email)
 	if errors.Is(err, sql.ErrNoRows) {
-		sqlResult, err := r.db.Exec("INSERT INTO `tutor` (name, email) VALUES (?,?)", tutor.Name, tutor.Email)
+		sqlResult, err := r.db.Exec("INSERT INTO `tutor` (name, email, subscribeToMailinglist) VALUES (?,?,?)", tutor.Name, tutor.Email, tutor.SubscribeToMailinglist)
 		if err != nil {
 			err = fmt.Errorf("SQL-error inserting new tutor: %w", err)
 			log.Println(err.Error())
@@ -67,7 +67,7 @@ func (r *TutorRepo) Add(tutor models.Tutor) (int, error) {
 
 func (r *TutorRepo) getFromRow(row *sql.Row) (models.Tutor, error) {
 	var tutor models.Tutor
-	if err := row.Scan(&tutor.Id, &tutor.Name, &tutor.Email); err != nil {
+	if err := row.Scan(&tutor.Id, &tutor.Name, &tutor.Email, &tutor.SubscribeToMailinglist); err != nil {
 		err = fmt.Errorf("SQL-error scanning tutor row: %w", err)
 		log.Println(err.Error())
 		return models.Tutor{}, err
@@ -79,7 +79,7 @@ func (r *TutorRepo) getFromRows(rows *sql.Rows) ([]models.Tutor, error) {
 	var tutors []models.Tutor
 	for rows.Next() {
 		var tutor models.Tutor
-		if err := rows.Scan(&tutor.Id, &tutor.Name, &tutor.Email); err != nil {
+		if err := rows.Scan(&tutor.Id, &tutor.Name, &tutor.Email, &tutor.SubscribeToMailinglist); err != nil {
 			err = fmt.Errorf("Error scanning tutor row: %w", err)
 			log.Println(err.Error())
 			return tutors, err

templating/templates/addMask.html

@@ -33,6 +33,13 @@
         </div>
         </div>
 
+        <div class="form-floating mb-3">
+        <div class="form-check">
+          <input class="form-check-input" name="subscribeToMailinglist" id="subscribeToMailinglist" type="checkbox" value="subscribe" {{if eq .SubscribeToMailinglist true}}checked{{end}}>
+          <label class="form-check-label" for="subscribeToMailinglist"><a href="https://lists.mathebau.de/postorius/lists/shk.mathebau.de/">Mailingliste für SHK</a> abbonieren</label>
+        </div>
+      </div>
+
       <div class="form-floating mb-3">
         <select class="form-control form-select required" required name="veranstaltung" id="veranstaltung">
           <option disabled{{if eq $.SelectedCourse 0 }} selected{{end}} value>–– auswählen ––</option>

templating/templates/confirmationMail

@@ -1,7 +1,7 @@
 From: {{.Config.Mailer.FromName}}
 To: {{.Request.OfficeHour.Tutor.Email}}
 Subject: Sprechstunde {{if eq .Request.Action 0}}anlegen{{end}}{{if eq .Request.Action 1}}löschen{{end}}
-Message-Id: {{.MessageId}}
+Message-ID: {{.MessageId}}
 
 Hallo {{.Request.OfficeHour.Tutor.Name}},