Started styling the app and have got editing posts working.

services/posts/services.go

@@ -31,17 +31,51 @@ func (s *Service) ListPostOfSite(ctx context.Context, site models.Site) ([]model
 	return s.db.ListPostsOfSite(ctx, site.ID)
 }
 
-func (s *Service) Create(ctx context.Context, site models.Site, body string) (models.Post, error) {
-	post := models.Post{
-		SiteID:    site.ID,
-		Body:      body,
-		State:     models.PostStatePublished,
-		PostDate:  time.Now(),
-		CreatedAt: time.Now(),
-	}
-	if err := s.db.InsertPost(ctx, &post); err != nil {
+func (s *Service) GetPost(ctx context.Context, id int) (models.Post, error) {
+	post, err := s.db.GetPost(ctx, int64(id))
+	if err != nil {
 		return models.Post{}, err
 	}
 
-	return post, s.jobs.Queue(ctx, s.sb.WritePost(site, post))
+	return post, nil
+}
+
+func (s *Service) Create(ctx context.Context, site models.Site, req NewPost) (models.Post, error) {
+	post := models.Post{
+		SiteID:   site.ID,
+		Title:    req.Title,
+		Body:     req.Body,
+		State:    models.PostStatePublished,
+		PostDate: time.Now(),
+	}
+
+	if err := s.Save(ctx, site, &post); err != nil {
+		return models.Post{}, err
+	}
+
+	return post, nil
+}
+
+func (s *Service) Save(ctx context.Context, site models.Site, post *models.Post) error {
+	post.SiteID = site.ID
+
+	if post.ID == 0 {
+		post.CreatedAt = time.Now()
+		post.UpdatedAt = time.Now()
+		if err := s.db.InsertPost(ctx, post); err != nil {
+			return err
+		}
+	} else {
+		post.UpdatedAt = time.Now()
+		if err := s.db.UpdatePost(ctx, post); err != nil {
+			return err
+		}
+	}
+
+	return s.jobs.Queue(ctx, s.sb.WritePost(site, *post))
+}
+
+type NewPost struct {
+	Title string
+	Body  string
 }