Add yes/no RSVP answers with required login

RSVPs now carry a status ('yes'/'no'). When auth is enabled, answering
requires login for all events, not just capped ones. Answers are deduped
one per user and re-answering updates in place. A 'no' zeroes plus_one,
is excluded from Going counts and cap math, frees the person's slot
claims, and shows in a separate "Can't make it" list.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CLAUDE.md

@@ -70,4 +70,4 @@ Dynamic PNG generation at `/e/{slug}/og.png` using Go's `image` package with a c
 
 ### Auth Model
 
-No user auth. Admin access is via secret `admin_token` in the URL. Claims/RSVPs are open to anyone with the event link.
+Email-code login behind the `BBQ_FEATURES=auth` flag. When auth is on, RSVP answers (yes or no) require login and are deduped one-per-user; when off, everything is open like a shared Google Sheet. RSVPs have a `status` column (`yes`/`no`) — no's don't count toward Going and free any claimed slots. Admin access is via secret `admin_token` in the URL (plus event ownership when auth is on).

db/models.go

@@ -37,6 +37,7 @@ type Rsvp struct {
 	Name      string
 	Note      string
 	PlusOne   int64
+	Status    string
 	UserID    sql.NullInt64
 	CreatedAt time.Time
 }

db/queries.sql

@@ -64,12 +64,16 @@ DELETE FROM claims WHERE id = ?;
 -- name: CountClaimsBySlot :one
 SELECT COUNT(*) FROM claims WHERE slot_id = ?;
 
+-- name: DeleteClaimsByEventAndName :exec
+DELETE FROM claims WHERE slot_id IN (SELECT id FROM slots WHERE event_id = ?)
+AND claims.name = ? COLLATE NOCASE;
+
 -- name: ListRsvps :many
 SELECT * FROM rsvps WHERE event_id = ? ORDER BY created_at;
 
 -- name: CreateRsvp :one
-INSERT INTO rsvps (event_id, name, note, plus_one, user_id)
-VALUES (?, ?, ?, ?, ?)
+INSERT INTO rsvps (event_id, name, note, plus_one, status, user_id)
+VALUES (?, ?, ?, ?, ?, ?)
 RETURNING *;
 
 -- name: DeleteRsvp :exec
@@ -85,7 +89,7 @@ SELECT * FROM rsvps WHERE event_id = ? AND name = ? COLLATE NOCASE LIMIT 1;
 SELECT * FROM rsvps WHERE event_id = ? AND user_id = ? LIMIT 1;
 
 -- name: CountGoing :one
-SELECT CAST(COALESCE(SUM(1 + plus_one), 0) AS INTEGER) FROM rsvps WHERE event_id = ?;
+SELECT CAST(COALESCE(SUM(1 + plus_one), 0) AS INTEGER) FROM rsvps WHERE event_id = ? AND status = 'yes';
 
 -- name: DeleteDuplicateRsvps :exec
 DELETE FROM rsvps WHERE id NOT IN (
@@ -140,7 +144,7 @@ UPDATE events SET user_id = ? WHERE id = ?;
 SELECT * FROM rsvps WHERE id = ?;
 
 -- name: UpdateRsvp :exec
-UPDATE rsvps SET name = ?, note = ?, plus_one = ? WHERE id = ?;
+UPDATE rsvps SET name = ?, note = ?, plus_one = ?, status = ? WHERE id = ?;
 
 -- name: CreateSmsConsent :exec
 INSERT INTO sms_consents (phone, ip_address, user_agent) VALUES (?, ?, ?);

db/queries.sql.go

@@ -23,7 +23,7 @@ func (q *Queries) CountClaimsBySlot(ctx context.Context, slotID int64) (int64, e
 }
 
 const countGoing = `-- name: CountGoing :one
-SELECT CAST(COALESCE(SUM(1 + plus_one), 0) AS INTEGER) FROM rsvps WHERE event_id = ?
+SELECT CAST(COALESCE(SUM(1 + plus_one), 0) AS INTEGER) FROM rsvps WHERE event_id = ? AND status = 'yes'
 `
 
 func (q *Queries) CountGoing(ctx context.Context, eventID int64) (int64, error) {
@@ -115,9 +115,9 @@ func (q *Queries) CreateEvent(ctx context.Context, arg CreateEventParams) (Event
 }
 
 const createRsvp = `-- name: CreateRsvp :one
-INSERT INTO rsvps (event_id, name, note, plus_one, user_id)
-VALUES (?, ?, ?, ?, ?)
-RETURNING id, event_id, name, note, plus_one, user_id, created_at
+INSERT INTO rsvps (event_id, name, note, plus_one, status, user_id)
+VALUES (?, ?, ?, ?, ?, ?)
+RETURNING id, event_id, name, note, plus_one, status, user_id, created_at
 `
 
 type CreateRsvpParams struct {
@@ -125,6 +125,7 @@ type CreateRsvpParams struct {
 	Name    string
 	Note    string
 	PlusOne int64
+	Status  string
 	UserID  sql.NullInt64
 }
 
@@ -134,6 +135,7 @@ func (q *Queries) CreateRsvp(ctx context.Context, arg CreateRsvpParams) (Rsvp, e
 		arg.Name,
 		arg.Note,
 		arg.PlusOne,
+		arg.Status,
 		arg.UserID,
 	)
 	var i Rsvp
@@ -143,6 +145,7 @@ func (q *Queries) CreateRsvp(ctx context.Context, arg CreateRsvpParams) (Rsvp, e
 		&i.Name,
 		&i.Note,
 		&i.PlusOne,
+		&i.Status,
 		&i.UserID,
 		&i.CreatedAt,
 	)
@@ -271,6 +274,21 @@ func (q *Queries) DeleteClaim(ctx context.Context, id int64) error {
 	return err
 }
 
+const deleteClaimsByEventAndName = `-- name: DeleteClaimsByEventAndName :exec
+DELETE FROM claims WHERE slot_id IN (SELECT id FROM slots WHERE event_id = ?)
+AND claims.name = ? COLLATE NOCASE
+`
+
+type DeleteClaimsByEventAndNameParams struct {
+	EventID int64
+	Name    string
+}
+
+func (q *Queries) DeleteClaimsByEventAndName(ctx context.Context, arg DeleteClaimsByEventAndNameParams) error {
+	_, err := q.db.ExecContext(ctx, deleteClaimsByEventAndName, arg.EventID, arg.Name)
+	return err
+}
+
 const deleteDuplicateRsvps = `-- name: DeleteDuplicateRsvps :exec
 DELETE FROM rsvps WHERE id NOT IN (
   SELECT MIN(id) FROM rsvps GROUP BY event_id, name COLLATE NOCASE
@@ -391,7 +409,7 @@ func (q *Queries) GetEventBySlug(ctx context.Context, slug string) (Event, error
 }
 
 const getRsvp = `-- name: GetRsvp :one
-SELECT id, event_id, name, note, plus_one, user_id, created_at FROM rsvps WHERE id = ?
+SELECT id, event_id, name, note, plus_one, status, user_id, created_at FROM rsvps WHERE id = ?
 `
 
 func (q *Queries) GetRsvp(ctx context.Context, id int64) (Rsvp, error) {
@@ -403,6 +421,7 @@ func (q *Queries) GetRsvp(ctx context.Context, id int64) (Rsvp, error) {
 		&i.Name,
 		&i.Note,
 		&i.PlusOne,
+		&i.Status,
 		&i.UserID,
 		&i.CreatedAt,
 	)
@@ -410,7 +429,7 @@ func (q *Queries) GetRsvp(ctx context.Context, id int64) (Rsvp, error) {
 }
 
 const getRsvpByName = `-- name: GetRsvpByName :one
-SELECT id, event_id, name, note, plus_one, user_id, created_at FROM rsvps WHERE event_id = ? AND name = ? COLLATE NOCASE LIMIT 1
+SELECT id, event_id, name, note, plus_one, status, user_id, created_at FROM rsvps WHERE event_id = ? AND name = ? COLLATE NOCASE LIMIT 1
 `
 
 type GetRsvpByNameParams struct {
@@ -427,6 +446,7 @@ func (q *Queries) GetRsvpByName(ctx context.Context, arg GetRsvpByNameParams) (R
 		&i.Name,
 		&i.Note,
 		&i.PlusOne,
+		&i.Status,
 		&i.UserID,
 		&i.CreatedAt,
 	)
@@ -434,7 +454,7 @@ func (q *Queries) GetRsvpByName(ctx context.Context, arg GetRsvpByNameParams) (R
 }
 
 const getRsvpByUser = `-- name: GetRsvpByUser :one
-SELECT id, event_id, name, note, plus_one, user_id, created_at FROM rsvps WHERE event_id = ? AND user_id = ? LIMIT 1
+SELECT id, event_id, name, note, plus_one, status, user_id, created_at FROM rsvps WHERE event_id = ? AND user_id = ? LIMIT 1
 `
 
 type GetRsvpByUserParams struct {
@@ -451,6 +471,7 @@ func (q *Queries) GetRsvpByUser(ctx context.Context, arg GetRsvpByUserParams) (R
 		&i.Name,
 		&i.Note,
 		&i.PlusOne,
+		&i.Status,
 		&i.UserID,
 		&i.CreatedAt,
 	)
@@ -653,7 +674,7 @@ func (q *Queries) ListEventsByUser(ctx context.Context, userID sql.NullInt64) ([
 }
 
 const listRsvps = `-- name: ListRsvps :many
-SELECT id, event_id, name, note, plus_one, user_id, created_at FROM rsvps WHERE event_id = ? ORDER BY created_at
+SELECT id, event_id, name, note, plus_one, status, user_id, created_at FROM rsvps WHERE event_id = ? ORDER BY created_at
 `
 
 func (q *Queries) ListRsvps(ctx context.Context, eventID int64) ([]Rsvp, error) {
@@ -671,6 +692,7 @@ func (q *Queries) ListRsvps(ctx context.Context, eventID int64) ([]Rsvp, error)
 			&i.Name,
 			&i.Note,
 			&i.PlusOne,
+			&i.Status,
 			&i.UserID,
 			&i.CreatedAt,
 		); err != nil {
@@ -811,13 +833,14 @@ func (q *Queries) UpdateEventLocation(ctx context.Context, arg UpdateEventLocati
 }
 
 const updateRsvp = `-- name: UpdateRsvp :exec
-UPDATE rsvps SET name = ?, note = ?, plus_one = ? WHERE id = ?
+UPDATE rsvps SET name = ?, note = ?, plus_one = ?, status = ? WHERE id = ?
 `
 
 type UpdateRsvpParams struct {
 	Name    string
 	Note    string
 	PlusOne int64
+	Status  string
 	ID      int64
 }
 
@@ -826,6 +849,7 @@ func (q *Queries) UpdateRsvp(ctx context.Context, arg UpdateRsvpParams) error {
 		arg.Name,
 		arg.Note,
 		arg.PlusOne,
+		arg.Status,
 		arg.ID,
 	)
 	return err

handlers.go

@@ -170,12 +170,14 @@ type EventPageData struct {
 	Slots           []SlotView
 	Rsvps           []db.Rsvp
 	GoingList       []GoingPerson
+	NotGoingList    []GoingPerson
 	TotalGoing      int64
 	IsAdmin         bool
 	BaseURL         string
 	DescriptionHTML template.HTML
 	User            *db.User
 	AuthEnabled     bool
+	CanEditRsvps    bool
 	Capped          bool
 	SpotsLeft       int64
 	CapFull         bool
@@ -228,14 +230,15 @@ func (s *Server) loadEventPage(r *http.Request, slug string, isAdmin bool) (*Eve
 		return nil, err
 	}
 	var totalGoing int64
+	var goingList, notGoingList []GoingPerson
 	for _, r := range rsvps {
-		totalGoing += 1 + r.PlusOne
+		p := GoingPerson{Name: r.Name, Note: r.Note, RsvpID: r.ID, PlusOne: r.PlusOne}
+		if r.Status == "no" {
+			notGoingList = append(notGoingList, p)
+			continue
 		}
-
-	// Build GoingList from RSVPs only
-	var goingList []GoingPerson
-	for _, r := range rsvps {
-		goingList = append(goingList, GoingPerson{Name: r.Name, Note: r.Note, RsvpID: r.ID, PlusOne: r.PlusOne})
+		totalGoing += 1 + r.PlusOne
+		goingList = append(goingList, p)
 	}
 
 	var descHTML template.HTML
@@ -259,17 +262,20 @@ func (s *Server) loadEventPage(r *http.Request, slug string, isAdmin bool) (*Eve
 		}
 	}
 
+	user := s.currentUser(r)
 	return &EventPageData{
 		Event:           event,
 		Slots:           slotViews,
 		Rsvps:           rsvps,
 		GoingList:       goingList,
+		NotGoingList:    notGoingList,
 		TotalGoing:      totalGoing,
 		IsAdmin:         isAdmin,
 		BaseURL:         s.baseURL,
 		DescriptionHTML: descHTML,
-		User:            s.currentUser(r),
+		User:            user,
 		AuthEnabled:     s.features.Auth,
+		CanEditRsvps:    isAdmin || !s.features.Auth || user != nil,
 		Capped:          capped,
 		SpotsLeft:       spotsLeft,
 		CapFull:         capped && totalGoing >= event.AttendeeCap,
@@ -356,12 +362,19 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	note := sanitize(r.FormValue("note"), maxNoteLen)
+	status := "yes"
+	if r.FormValue("status") == "no" {
+		status = "no"
+	}
 	plusOne := int64(0)
 	if v, err := strconv.ParseInt(r.FormValue("plus_one"), 10, 64); err == nil && v > 0 {
 		plusOne = v
 	}
-	if plusOne > 10 {
-		plusOne = 10
+	if plusOne > maxPlusOne {
+		plusOne = maxPlusOne
+	}
+	if status == "no" {
+		plusOne = 0
 	}
 
 	event, err := s.q.GetEventBySlug(r.Context(), slug)
@@ -370,28 +383,45 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Capped events require login and enforce the cap on total people going.
-	capped := s.features.Auth && event.AttendeeCap > 0
+	// Answering — yes or no — requires login when auth is enabled.
 	user := s.currentUser(r)
-	alreadyRsvped := false
-	if capped {
-		if user == nil {
+	if s.features.Auth && user == nil {
 		http.Error(w, "You must be logged in to RSVP", http.StatusUnauthorized)
 		return
 	}
-		_, err := s.q.GetRsvpByUser(r.Context(), db.GetRsvpByUserParams{
+
+	// One answer per person: find an existing RSVP by user, falling back to name.
+	var existing *db.Rsvp
+	if user != nil {
+		if rv, err := s.q.GetRsvpByUser(r.Context(), db.GetRsvpByUserParams{
 			EventID: event.ID,
 			UserID:  sql.NullInt64{Int64: user.ID, Valid: true},
-		})
-		alreadyRsvped = err == nil
-		if !alreadyRsvped {
+		}); err == nil {
+			existing = &rv
+		}
+	}
+	if existing == nil {
+		if rv, err := s.q.GetRsvpByName(r.Context(), db.GetRsvpByNameParams{
+			EventID: event.ID, Name: name,
+		}); err == nil {
+			existing = &rv
+		}
+	}
+
+	// Capped events enforce the cap on total people going.
+	capped := s.features.Auth && event.AttendeeCap > 0
+	if capped && status == "yes" {
 		going, err := s.q.CountGoing(r.Context(), event.ID)
 		if err != nil {
 			http.Error(w, "error", http.StatusInternalServerError)
 			return
 		}
-			if going+1+plusOne > event.AttendeeCap {
-				left := event.AttendeeCap - going
+		var current int64
+		if existing != nil && existing.Status == "yes" {
+			current = 1 + existing.PlusOne
+		}
+		if going-current+1+plusOne > event.AttendeeCap {
+			left := event.AttendeeCap - (going - current)
 			if left <= 0 {
 				http.Error(w, "Event is full", http.StatusConflict)
 			} else {
@@ -400,10 +430,9 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	}
-	}
 
-	// Optional slot claim
-	if slotIDStr := r.FormValue("slot_id"); slotIDStr != "" {
+	// Optional slot claim (only when going)
+	if slotIDStr := r.FormValue("slot_id"); slotIDStr != "" && status == "yes" {
 		slotID, err := strconv.ParseInt(slotIDStr, 10, 64)
 		if err != nil {
 			http.Error(w, "Invalid slot", http.StatusBadRequest)
@@ -440,16 +469,17 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	// Create RSVP (deduped — skip if already on the list)
-	if !alreadyRsvped {
-		var userID sql.NullInt64
-		if user != nil {
-			userID = sql.NullInt64{Int64: user.ID, Valid: true}
-		}
-		_, err = s.q.GetRsvpByName(r.Context(), db.GetRsvpByNameParams{
-			EventID: event.ID, Name: name,
+	// Record the answer: update the existing RSVP or create a new one.
+	if existing != nil {
+		err = s.q.UpdateRsvp(r.Context(), db.UpdateRsvpParams{
+			Name: name, Note: note, PlusOne: plusOne, Status: status, ID: existing.ID,
 		})
-		if err == sql.ErrNoRows {
+		if err != nil {
+			log.Printf("update rsvp: %v", err)
+			http.Error(w, "Failed", http.StatusInternalServerError)
+			return
+		}
+	} else {
 		count, err := s.q.CountRsvps(r.Context(), event.ID)
 		if err != nil {
 			http.Error(w, "error", http.StatusInternalServerError)
@@ -460,8 +490,12 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
+		var userID sql.NullInt64
+		if user != nil {
+			userID = sql.NullInt64{Int64: user.ID, Valid: true}
+		}
 		_, err = s.q.CreateRsvp(r.Context(), db.CreateRsvpParams{
-				EventID: event.ID, Name: name, Note: note, PlusOne: plusOne, UserID: userID,
+			EventID: event.ID, Name: name, Note: note, PlusOne: plusOne, Status: status, UserID: userID,
 		})
 		if err != nil {
 			log.Printf("create rsvp: %v", err)
@@ -469,6 +503,17 @@ func (s *Server) handleRsvp(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	}
+
+	// Not coming — free any slots claimed under their name.
+	if status == "no" {
+		s.q.DeleteClaimsByEventAndName(r.Context(), db.DeleteClaimsByEventAndNameParams{
+			EventID: event.ID, Name: name,
+		})
+		if existing != nil && !strings.EqualFold(existing.Name, name) {
+			s.q.DeleteClaimsByEventAndName(r.Context(), db.DeleteClaimsByEventAndNameParams{
+				EventID: event.ID, Name: existing.Name,
+			})
+		}
 	}
 
 	s.notify(slug)
@@ -509,6 +554,11 @@ func (s *Server) handleUpdateRsvp(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	if s.features.Auth && s.currentUser(r) == nil {
+		http.Error(w, "You must be logged in to RSVP", http.StatusUnauthorized)
+		return
+	}
+
 	r.Body = http.MaxBytesReader(w, r.Body, 8*1024)
 	r.ParseForm()
 
@@ -518,12 +568,19 @@ func (s *Server) handleUpdateRsvp(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	note := sanitize(r.FormValue("note"), maxNoteLen)
+	status := "yes"
+	if r.FormValue("status") == "no" {
+		status = "no"
+	}
 	plusOne := int64(0)
 	if v, err := strconv.ParseInt(r.FormValue("plus_one"), 10, 64); err == nil && v > 0 {
 		plusOne = v
 	}
-	if plusOne > 10 {
-		plusOne = 10
+	if plusOne > maxPlusOne {
+		plusOne = maxPlusOne
+	}
+	if status == "no" {
+		plusOne = 0
 	}
 
 	event, err := s.q.GetEventBySlug(r.Context(), slug)
@@ -531,32 +588,48 @@ func (s *Server) handleUpdateRsvp(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Event not found", http.StatusNotFound)
 		return
 	}
-	// Raising plus_one can't exceed the attendee cap.
-	if s.features.Auth && event.AttendeeCap > 0 {
 	old, err := s.q.GetRsvp(r.Context(), rsvpID)
 	if err != nil {
 		http.Error(w, "RSVP not found", http.StatusNotFound)
 		return
 	}
+	// Raising plus_one (or flipping back to yes) can't exceed the attendee cap.
+	if s.features.Auth && event.AttendeeCap > 0 && status == "yes" {
 		going, err := s.q.CountGoing(r.Context(), event.ID)
 		if err != nil {
 			http.Error(w, "error", http.StatusInternalServerError)
 			return
 		}
-		if going-old.PlusOne+plusOne > event.AttendeeCap {
+		var current int64
+		if old.Status == "yes" {
+			current = 1 + old.PlusOne
+		}
+		if going-current+1+plusOne > event.AttendeeCap {
 			http.Error(w, "Not enough spots left", http.StatusConflict)
 			return
 		}
 	}
 
 	err = s.q.UpdateRsvp(r.Context(), db.UpdateRsvpParams{
-		Name: name, Note: note, PlusOne: plusOne, ID: rsvpID,
+		Name: name, Note: note, PlusOne: plusOne, Status: status, ID: rsvpID,
 	})
 	if err != nil {
 		http.Error(w, "Failed to update", http.StatusInternalServerError)
 		return
 	}
 
+	// Not coming — free any slots claimed under their name.
+	if status == "no" {
+		s.q.DeleteClaimsByEventAndName(r.Context(), db.DeleteClaimsByEventAndNameParams{
+			EventID: event.ID, Name: name,
+		})
+		if !strings.EqualFold(old.Name, name) {
+			s.q.DeleteClaimsByEventAndName(r.Context(), db.DeleteClaimsByEventAndNameParams{
+				EventID: event.ID, Name: old.Name,
+			})
+		}
+	}
+
 	s.notify(slug)
 
 	w.Header().Set("HX-Trigger", "closeModal")
@@ -576,6 +649,11 @@ func (s *Server) handleUnrsvp(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	if s.features.Auth && s.currentUser(r) == nil {
+		http.Error(w, "You must be logged in to RSVP", http.StatusUnauthorized)
+		return
+	}
+
 	s.q.DeleteRsvp(r.Context(), rsvpID)
 	s.notify(slug)
 

handlers_test.go

@@ -54,7 +54,7 @@ func autoRsvpPlusOne(ctx context.Context, q *db.Queries, event db.Event, name st
 	})
 	if err == sql.ErrNoRows {
 		_, err = q.CreateRsvp(ctx, db.CreateRsvpParams{
-			EventID: event.ID, Name: name, Note: note, PlusOne: plusOne,
+			EventID: event.ID, Name: name, Note: note, PlusOne: plusOne, Status: "yes",
 		})
 		return err
 	}
@@ -162,10 +162,10 @@ func TestDeduplicateExistingRsvps(t *testing.T) {
 	event := createTestEvent(t, q)
 
 	// Insert duplicate RSVPs directly
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Charlie", PlusOne: 0})
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Charlie", PlusOne: 0})
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "charlie", PlusOne: 0})
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Dana", PlusOne: 0})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Charlie", PlusOne: 0, Status: "yes"})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Charlie", PlusOne: 0, Status: "yes"})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "charlie", PlusOne: 0, Status: "yes"})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Dana", PlusOne: 0, Status: "yes"})
 
 	rsvps, _ := q.ListRsvps(ctx, event.ID)
 	if len(rsvps) != 4 {
@@ -187,14 +187,14 @@ func TestUpdateRsvp(t *testing.T) {
 	event := createTestEvent(t, q)
 
 	rsvp, err := q.CreateRsvp(ctx, db.CreateRsvpParams{
-		EventID: event.ID, Name: "Alice", Note: "hi", PlusOne: 1,
+		EventID: event.ID, Name: "Alice", Note: "hi", PlusOne: 1, Status: "yes",
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	err = q.UpdateRsvp(ctx, db.UpdateRsvpParams{
-		Name: "Alicia", Note: "updated", PlusOne: 3, ID: rsvp.ID,
+		Name: "Alicia", Note: "updated", PlusOne: 3, Status: "yes", ID: rsvp.ID,
 	})
 	if err != nil {
 		t.Fatal(err)
@@ -252,8 +252,8 @@ func TestCountGoing(t *testing.T) {
 		t.Fatalf("expected 0 going on empty event, got %d", going)
 	}
 
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Alice", PlusOne: 0})
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Bob", PlusOne: 2})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Alice", PlusOne: 0, Status: "yes"})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Bob", PlusOne: 2, Status: "yes"})
 
 	going, err = q.CountGoing(ctx, event.ID)
 	if err != nil {
@@ -282,7 +282,7 @@ func TestGetRsvpByUser(t *testing.T) {
 	}
 
 	q.CreateRsvp(ctx, db.CreateRsvpParams{
-		EventID: event.ID, Name: "Alice", PlusOne: 1,
+		EventID: event.ID, Name: "Alice", PlusOne: 1, Status: "yes",
 		UserID: sql.NullInt64{Int64: user.ID, Valid: true},
 	})
 
@@ -311,7 +311,7 @@ func TestAttendeeCapArithmetic(t *testing.T) {
 		t.Fatalf("expected AttendeeCap=3, got %d", event.AttendeeCap)
 	}
 
-	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Alice", PlusOne: 1})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Alice", PlusOne: 1, Status: "yes"})
 
 	going, _ := q.CountGoing(ctx, event.ID)
 	// Same check as handleRsvp: a new RSVP with plus_one=1 would exceed the cap.
@@ -341,3 +341,85 @@ func TestRsvpPlusOne(t *testing.T) {
 		t.Fatalf("expected PlusOne=2, got %d", rsvps[0].PlusOne)
 	}
 }
+
+func TestRsvpNoExcludedFromCountGoing(t *testing.T) {
+	_, q := setupTestDB(t)
+	ctx := context.Background()
+	event := createTestEvent(t, q)
+
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Alice", PlusOne: 1, Status: "yes"})
+	q.CreateRsvp(ctx, db.CreateRsvpParams{EventID: event.ID, Name: "Bob", PlusOne: 0, Status: "no"})
+
+	going, err := q.CountGoing(ctx, event.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if going != 2 {
+		t.Fatalf("expected 2 going (no's excluded), got %d", going)
+	}
+
+	rsvps, _ := q.ListRsvps(ctx, event.ID)
+	if len(rsvps) != 2 {
+		t.Fatalf("expected 2 RSVPs listed (including no), got %d", len(rsvps))
+	}
+}
+
+func TestSwitchAnswerToNo(t *testing.T) {
+	_, q := setupTestDB(t)
+	ctx := context.Background()
+	event := createTestEvent(t, q)
+
+	rsvp, err := q.CreateRsvp(ctx, db.CreateRsvpParams{
+		EventID: event.ID, Name: "Alice", PlusOne: 2, Status: "yes",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Same update handleRsvp performs when re-answering with "no".
+	err = q.UpdateRsvp(ctx, db.UpdateRsvpParams{
+		Name: "Alice", Note: "", PlusOne: 0, Status: "no", ID: rsvp.ID,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	going, _ := q.CountGoing(ctx, event.ID)
+	if going != 0 {
+		t.Fatalf("expected 0 going after switching to no, got %d", going)
+	}
+	updated, _ := q.GetRsvp(ctx, rsvp.ID)
+	if updated.Status != "no" {
+		t.Fatalf("expected status no, got %s", updated.Status)
+	}
+}
+
+func TestNoFreesClaimedSlots(t *testing.T) {
+	_, q := setupTestDB(t)
+	ctx := context.Background()
+	event := createTestEvent(t, q)
+
+	slot, err := q.CreateSlot(ctx, db.CreateSlotParams{
+		EventID: event.ID, Name: "Drinks", MaxClaims: 2,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := autoRsvp(ctx, q, event, "Alice", "seltzer", &slot.ID); err != nil {
+		t.Fatal(err)
+	}
+
+	// Same cleanup handleRsvp performs on a "no" answer (case-insensitive).
+	err = q.DeleteClaimsByEventAndName(ctx, db.DeleteClaimsByEventAndNameParams{
+		EventID: event.ID, Name: "alice",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	count, _ := q.CountClaimsBySlot(ctx, slot.ID)
+	if count != 0 {
+		t.Fatalf("expected claim freed after no, got %d claims", count)
+	}
+}

migrate.go

@@ -36,6 +36,8 @@ func runMigrations(database *sql.DB) {
 		// Attendee cap (0 = uncapped); capped events require login to RSVP.
 		`ALTER TABLE events ADD COLUMN attendee_cap INTEGER NOT NULL DEFAULT 0`,
 		`ALTER TABLE rsvps ADD COLUMN user_id INTEGER REFERENCES users(id)`,
+		// RSVPs can now be a yes or a no.
+		`ALTER TABLE rsvps ADD COLUMN status TEXT NOT NULL DEFAULT 'yes'`,
 	}
 	for _, m := range migrations {
 		_, err := database.Exec(m)

schema.sql

@@ -35,6 +35,7 @@ CREATE TABLE IF NOT EXISTS rsvps (
     name       TEXT    NOT NULL,
     note       TEXT    NOT NULL DEFAULT '',
     plus_one   INTEGER NOT NULL DEFAULT 0,
+    status     TEXT    NOT NULL DEFAULT 'yes', -- 'yes' or 'no'
     user_id    INTEGER REFERENCES users(id),
     created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
 );

templates/edit-rsvp.html

@@ -9,6 +9,13 @@
         <label>Your name</label>
         <input type="text" name="name" value="{{.Rsvp.Name}}" required>
       </div>
+      <div class="form-row">
+        <label>Coming?</label>
+        <select name="status">
+          <option value="yes" {{if ne .Rsvp.Status "no"}}selected{{end}}>Yes, I'm going</option>
+          <option value="no" {{if eq .Rsvp.Status "no"}}selected{{end}}>Can't make it</option>
+        </select>
+      </div>
       <div class="form-row">
         <label>Bringing anyone?</label>
         <input type="number" name="plus_one" value="{{.Rsvp.PlusOne}}" min="0" max="10">

templates/event.html

@@ -41,25 +41,25 @@
 
 <div class="section-label" style="margin-top:40px">Sign up</div>
 
-{{if and .Capped .CapFull}}
-<div class="claim-form-wrapper">
-  <div class="form-title">Event is full</div>
-  <p style="font-family:'DM Mono',monospace;font-size:0.8rem;color:#555;">
-    All {{.Event.AttendeeCap}} spots are taken.
-  </p>
-</div>
-{{else if and .Capped (not .User)}}
+{{if and .AuthEnabled (not .User)}}
 <div class="claim-form-wrapper">
   <div class="form-title">Log in to RSVP</div>
   <p style="font-family:'DM Mono',monospace;font-size:0.8rem;color:#555;margin-bottom:16px;">
-    This event has limited spots ({{.SpotsLeft}} left), so RSVPs require an account.
+    {{if .Capped}}This event has limited spots ({{.SpotsLeft}} left), so RSVPs{{else}}RSVPs{{end}} require an account.
   </p>
   <a class="btn-submit" style="display:inline-block;text-decoration:none;text-align:center;"
      href="/login?next=/e/{{.Event.Slug}}">Log in to RSVP &#8599;</a>
 </div>
 {{else}}
 <div class="claim-form-wrapper">
-  <div class="form-title">I'm coming &#8594;</div>
+  {{if .CapFull}}
+  <div class="form-title">Event is full</div>
+  <p style="font-family:'DM Mono',monospace;font-size:0.8rem;color:#555;margin-bottom:16px;">
+    All {{.Event.AttendeeCap}} spots are taken. You can still let them know you can't make it.
+  </p>
+  {{else}}
+  <div class="form-title">Are you coming?</div>
+  {{end}}
   <form hx-post="/e/{{.Event.Slug}}/rsvp"
         hx-target="#slots-container"
         hx-swap="innerHTML settle:0.1s"
@@ -68,6 +68,7 @@
       <label>Your name</label>
       <input type="text" name="name" placeholder="e.g. Sam" required value="{{if .User}}{{.User.Name}}{{end}}">
     </div>
+    {{if not .CapFull}}
     {{if .Slots}}
     <div class="form-row">
       <label>Bringing something?</label>
@@ -83,11 +84,17 @@
       <label>Bringing anyone?</label>
       <input type="number" name="plus_one" value="0" min="0" max="{{if .Capped}}{{.PlusOneMax}}{{else}}10{{end}}">
     </div>
+    {{end}}
     <div class="form-row" id="claim-note">
       <label>Note (optional)</label>
       <input type="text" id="claim-note-input" name="note" placeholder="e.g. arriving late, dietary restrictions, etc.">
     </div>
-    <button class="btn-submit" type="submit">Count me in &#8599;</button>
+    <div style="display:flex;gap:10px">
+      {{if not .CapFull}}
+      <button class="btn-submit" type="submit" name="status" value="yes">Count me in &#8599;</button>
+      {{end}}
+      <button class="btn-submit btn-no" type="submit" name="status" value="no">Can't make it</button>
+    </div>
   </form>
 </div>
 {{end}}

templates/layout.html

@@ -286,6 +286,13 @@
     box-shadow: 4px 4px 0 var(--sage);
     transform: translate(-2px, -2px);
   }
+  .btn-no {
+    background: var(--cream);
+    color: var(--ink);
+  }
+  .btn-no:hover {
+    box-shadow: 4px 4px 0 var(--peach);
+  }
   .progress-bar {
     height: 4px;
     background: #e8e8e8;

templates/slots.html

@@ -37,11 +37,11 @@
   {{if .GoingList}}
     {{range .GoingList}}
     <span class="claim-chip">
-      {{if gt .RsvpID 0}}<span class="rsvp-name-link"
+      {{if and (gt .RsvpID 0) $.CanEditRsvps}}<span class="rsvp-name-link"
         hx-get="/e/{{$.Event.Slug}}/rsvp/{{.RsvpID}}/edit"
         hx-target="#edit-modal"
         hx-swap="innerHTML">{{.Name}}</span>{{else}}{{.Name}}{{end}}{{if gt .PlusOne 0}} +{{.PlusOne}}{{end}}{{if .Note}} <small style="color:#888">({{.Note}})</small>{{end}}
-      {{if gt .RsvpID 0}}
+      {{if and (gt .RsvpID 0) $.CanEditRsvps}}
       <button hx-delete="/e/{{$.Event.Slug}}/rsvp/{{.RsvpID}}"
               hx-target="#slots-container"
               hx-swap="innerHTML settle:0.1s"
@@ -54,6 +54,27 @@
     <span class="nobody">no one yet</span>
   {{end}}
 </div>
+
+{{if .NotGoingList}}
+<div class="section-label">Can't make it ({{len .NotGoingList}})</div>
+<div class="rsvp-list">
+  {{range .NotGoingList}}
+  <span class="claim-chip" style="opacity:0.6">
+    {{if $.CanEditRsvps}}<span class="rsvp-name-link"
+      hx-get="/e/{{$.Event.Slug}}/rsvp/{{.RsvpID}}/edit"
+      hx-target="#edit-modal"
+      hx-swap="innerHTML">{{.Name}}</span>{{else}}{{.Name}}{{end}}{{if .Note}} <small style="color:#888">({{.Note}})</small>{{end}}
+    {{if $.CanEditRsvps}}
+    <button hx-delete="/e/{{$.Event.Slug}}/rsvp/{{.RsvpID}}"
+            hx-target="#slots-container"
+            hx-swap="innerHTML settle:0.1s"
+            hx-confirm="Remove {{.Name}}?"
+            title="Remove">&#215;</button>
+    {{end}}
+  </span>
+  {{end}}
+</div>
+{{end}}
 {{end}}
 
 {{define "slots.html"}}{{template "slots-inner" .}}{{end}}