onasty @ efd970430597e242aa15c24f868fc0e7103b45ac

M e2e/e2e_utils_db_test.go

@@ -1,6 +1,7 @@
 package e2e_test
 
 import (
+	"database/sql"
 	"errors"
 	"time"
 
@@ -8,6 +9,7 @@ "github.com/gofrs/uuid/v5"
 	"github.com/henvic/pgq"
 	"github.com/jackc/pgx/v5"
 	"github.com/olexsmir/onasty/internal/models"
+	"github.com/olexsmir/onasty/internal/store/psqlutil"
 )
 
 // getUserByEmail queries user from db by it's email
@@ -114,12 +116,15 @@ Where(pgq.Eq{"slug": slug}).
 		SQL()
 	e.require.NoError(err)
 
+	var readAt sql.NullTime
 	var note models.Note
 	err = e.postgresDB.QueryRow(e.ctx, query, args...).
-		Scan(&note.ID, &note.Content, &note.Slug, &note.BurnBeforeExpiration, &note.Password, &note.ReadAt, &note.CreatedAt, &note.ExpiresAt)
+		Scan(&note.ID, &note.Content, &note.Slug, &note.BurnBeforeExpiration, &note.Password, &readAt, &note.CreatedAt, &note.ExpiresAt)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return models.Note{} //nolint:exhaustruct
 	}
+
+	note.ReadAt = psqlutil.NullTimeToTime(readAt)
 
 	e.require.NoError(err)
 	return note

M internal/store/psql/noterepo/noterepo.go

@@ -2,6 +2,7 @@ package noterepo
 
 import (
 	"context"
+	"database/sql"
 	"errors"
 	"time"
 
@@ -111,12 +112,14 @@ return models.Note{}, err
 	}
 
 	var note models.Note
+	var readAt sql.NullTime
 	err = s.db.QueryRow(ctx, query, args...).
-		Scan(&note.Content, &note.Slug, &note.BurnBeforeExpiration, &note.ReadAt, &note.CreatedAt, &note.ExpiresAt)
-
+		Scan(&note.Content, &note.Slug, &note.BurnBeforeExpiration, &readAt, &note.CreatedAt, &note.ExpiresAt)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return models.Note{}, models.ErrNoteNotFound
 	}
+
+	note.ReadAt = psqlutil.NullTimeToTime(readAt)
 
 	return note, err
 }
@@ -131,14 +134,14 @@ from notes n
 	where slug = $1
 	`
 
-	var readAt time.Time
+	var readAt sql.NullTime
 	var metadata dtos.NoteMetadata
 	err := s.db.QueryRow(ctx, query, slug).Scan(&metadata.CreatedAt, &metadata.HasPassword, &readAt)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return dtos.NoteMetadata{}, models.ErrNoteNotFound
 	}
 
-	if !readAt.IsZero() {
+	if !psqlutil.NullTimeToTime(readAt).IsZero() {
 		return dtos.NoteMetadata{}, models.ErrNoteNotFound
 	}
 
@@ -165,10 +168,13 @@
 	var notes []models.Note
 	for rows.Next() {
 		var note models.Note
+		var readAt sql.NullTime
 		if err := rows.Scan(&note.Content, &note.Slug, &note.BurnBeforeExpiration, &note.Password,
-			&note.ReadAt, &note.CreatedAt, &note.ExpiresAt); err != nil {
+			&readAt, &note.CreatedAt, &note.ExpiresAt); err != nil {
 			return nil, err
 		}
+
+		note.ReadAt = psqlutil.NullTimeToTime(readAt)
 		notes = append(notes, note)
 	}
 
@@ -207,12 +213,15 @@ return models.Note{}, err
 	}
 
 	var note models.Note
+	var readAt sql.NullTime
 	err = s.db.QueryRow(ctx, query, args...).
-		Scan(&note.Content, &note.Slug, &note.BurnBeforeExpiration, &note.ReadAt, &note.CreatedAt, &note.ExpiresAt)
+		Scan(&note.Content, &note.Slug, &note.BurnBeforeExpiration, &readAt, &note.CreatedAt, &note.ExpiresAt)
 
 	if errors.Is(err, pgx.ErrNoRows) {
 		return models.Note{}, models.ErrNoteNotFound
 	}
+
+	note.ReadAt = psqlutil.NullTimeToTime(readAt)
 
 	return note, err
 }
@@ -255,10 +264,8 @@ query, args, err := pgq.
 		Update("notes").
 		Set("content", "").
 		Set("read_at", readAt).
-		Where(pgq.Eq{
-			"slug":    slug,
-			"read_at": time.Time{}, // check if time is null
-		}).
+		Where(pgq.Eq{"slug": slug}).
+		Where("read_at is null").
 		SQL()
 	if err != nil {
 		return err

M internal/store/psqlutil/psqlutil.go

@@ -2,7 +2,9 @@ package psqlutil
 
 import (
 	"context"
+	"database/sql"
 	"errors"
+	"time"
 
 	"github.com/jackc/pgx/v5/pgconn"
 	"github.com/jackc/pgx/v5/pgxpool"
@@ -39,3 +41,12 @@ pgErr.ConstraintName == constraintName
 	}
 	return false
 }
+
+// NullTimeToTime converts sql.NullTime to time.Time.
+// Returns zero [time.Time] if NullTime is not valid.
+func NullTimeToTime(t sql.NullTime) time.Time {
+	if t.Valid {
+		return t.Time
+	}
+	return time.Time{}
+}

A migrations/20250811132505_note_nullable_read_at.down.sql

@@ -0,0 +1,3 @@
+ALTER TABLE notes
+  ALTER COLUMN "read_at" SET NOT NULL,
+  ALTER COLUMN "read_at" SET DEFAULT '0001-01-01 00:00:00'::timestamptz;

A migrations/20250811132505_note_nullable_read_at.up.sql

@@ -0,0 +1,3 @@
+ALTER TABLE notes
+  ALTER COLUMN "read_at" DROP NOT NULL,
+  ALTER COLUMN "read_at" SET DEFAULT NULL;