Add podcast email field for RSS itunes:owner tag

Enables users to set a podcast contact email from the dashboard
settings. This email is included in the RSS feed as
itunes:owner/itunes:email, which podcast directories like Spotify
and Apple Podcasts require for indexing and verification.

store/store.go

@@ -14,6 +14,7 @@ type User struct {
 	PodcastSlug   string
 	PodcastImage  string
 	PodcastAuthor string
+	PodcastEmail  string
 	CreatedAt     string
 }
 
@@ -56,6 +57,7 @@ func migrate(db *sql.DB) error {
 		podcast_slug TEXT NOT NULL DEFAULT '',
 		podcast_image TEXT NOT NULL DEFAULT '',
 		podcast_author TEXT NOT NULL DEFAULT '',
+		podcast_email TEXT NOT NULL DEFAULT '',
 		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
 	);
 
@@ -96,8 +98,8 @@ func (s *Store) CreateUser(email, passwordHash string) (int64, error) {
 
 func (s *Store) UserByEmail(email string) (*User, error) {
 	u := &User{}
-	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, created_at FROM users WHERE email = ?", email).
-		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.CreatedAt)
+	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, podcast_email, created_at FROM users WHERE email = ?", email).
+		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.PodcastEmail, &u.CreatedAt)
 	if err != nil {
 		return nil, err
 	}
@@ -106,8 +108,8 @@ func (s *Store) UserByEmail(email string) (*User, error) {
 
 func (s *Store) GetUser(id int64) (*User, error) {
 	u := &User{}
-	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, created_at FROM users WHERE id = ?", id).
-		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.CreatedAt)
+	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, podcast_email, created_at FROM users WHERE id = ?", id).
+		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.PodcastEmail, &u.CreatedAt)
 	if err != nil {
 		return nil, err
 	}
@@ -116,8 +118,8 @@ func (s *Store) GetUser(id int64) (*User, error) {
 
 func (s *Store) UserBySlug(slug string) (*User, error) {
 	u := &User{}
-	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, created_at FROM users WHERE podcast_slug = ?", slug).
-		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.CreatedAt)
+	err := s.db.QueryRow("SELECT id, email, password_hash, podcast_title, podcast_slug, podcast_image, podcast_author, podcast_email, created_at FROM users WHERE podcast_slug = ?", slug).
+		Scan(&u.ID, &u.Email, &u.PasswordHash, &u.PodcastTitle, &u.PodcastSlug, &u.PodcastImage, &u.PodcastAuthor, &u.PodcastEmail, &u.CreatedAt)
 	if err != nil {
 		return nil, err
 	}
@@ -136,9 +138,9 @@ func (s *Store) SlugTaken(slug string, excludeUserID int64) (bool, error) {
 	return true, nil
 }
 
-func (s *Store) UpdateUserPodcast(id int64, title, slug, image, author string) error {
-	_, err := s.db.Exec("UPDATE users SET podcast_title=?, podcast_slug=?, podcast_image=?, podcast_author=? WHERE id=?",
-		title, slug, image, author, id)
+func (s *Store) UpdateUserPodcast(id int64, title, slug, image, author, email string) error {
+	_, err := s.db.Exec("UPDATE users SET podcast_title=?, podcast_slug=?, podcast_image=?, podcast_author=?, podcast_email=? WHERE id=?",
+		title, slug, image, author, email, id)
 	return err
 }