From 2638f22e950afc3cb7fe426efef837d65ad4e215 Mon Sep 17 00:00:00 2001
From: Pomog <thoryur@gmail.com>
Date: Fri, 22 Dec 2023 08:22:15 +0200
Subject: [PATCH 1/2] (m *SqliteBDRepo) CreateThread(thread models.Thread)
 validation

---
 internal/repository/dbrepo/sqllite.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/internal/repository/dbrepo/sqllite.go b/internal/repository/dbrepo/sqllite.go
index 5aac851..b1fbd56 100644
--- a/internal/repository/dbrepo/sqllite.go
+++ b/internal/repository/dbrepo/sqllite.go
@@ -126,6 +126,10 @@ func (m *SqliteBDRepo) CreateThread(thread models.Thread) (int64, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
 	defer cancel()
 
+	if thread.Subject == "" {
+		return 0, errors.New("you can not create empty thread")
+	}
+
 	user, err := m.GetUserByID(thread.UserID)
 	if err != nil {
 		return 0, errors.New("guest can not create a thread")

From 7c467ffeb07b442037152bcb7aef936525359fa5 Mon Sep 17 00:00:00 2001
From: Pomog <thoryur@gmail.com>
Date: Fri, 22 Dec 2023 14:54:02 +0200
Subject: [PATCH 2/2] BUG no posts corrected

---
 internal/handler/homeHandler.go | 23 ++++++++++++++++-------
 internal/renderer/render.go     |  3 +++
 template/home.page.html         |  6 +++++-
 3 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/internal/handler/homeHandler.go b/internal/handler/homeHandler.go
index ecadc0d..9d792cb 100644
--- a/internal/handler/homeHandler.go
+++ b/internal/handler/homeHandler.go
@@ -74,14 +74,23 @@ func (m *Repository) HomeHandler(w http.ResponseWriter, r *http.Request) {
 				log.Fatal(err)
 			}
 			info.Posts = posts
-			userWhoCreatedLastPost, err := m.DB.GetUserByID(getUserThatCreatedLastPost(posts))
-			if err != nil {
-				setErrorAndRedirect(w, r, "Could not get user as creator, m.DB.GetUserByID(getUserThatCreatedLastPost(posts))", "/error-page")
-				return
-			}
 
-			info.PictureUserWhoCreatedLastPost = userWhoCreatedLastPost.Picture
-			info.UserNameWhoCreatedLastPost = userWhoCreatedLastPost.UserName
+			userIDwhoCreatedLastPost := getUserThatCreatedLastPost(posts)
+			fmt.Println("getUserThatCreatedLastPost " + strconv.Itoa(userIDwhoCreatedLastPost))
+			fmt.Println("len(posts) " + strconv.Itoa(len(posts)))
+
+			if userIDwhoCreatedLastPost != 0 || len(posts) != 0 {
+				userWhoCreatedLastPost, err := m.DB.GetUserByID(userIDwhoCreatedLastPost)
+				if err != nil {
+					setErrorAndRedirect(w, r, "Could not get user as creator, m.DB.GetUserByID(getUserThatCreatedLastPost(posts))", "/error-page")
+					return
+				}
+
+				info.PictureUserWhoCreatedLastPost = userWhoCreatedLastPost.Picture
+				info.UserNameWhoCreatedLastPost = userWhoCreatedLastPost.UserName
+			} else if userIDwhoCreatedLastPost == 0 || len(posts) == 0 {
+				info.Created = ""
+			}
 			threadsInfo = append(threadsInfo, info)
 		}
 
diff --git a/internal/renderer/render.go b/internal/renderer/render.go
index c2f08cc..a2b58b3 100644
--- a/internal/renderer/render.go
+++ b/internal/renderer/render.go
@@ -18,6 +18,9 @@ var app *config.AppConfig
 
 var pathToTemplates = "./template"
 var functions = template.FuncMap{
+	"postsLen": func(allPosts []models.Post) int {
+		return len(allPosts)
+	},
 	"findLastPost": func(allPosts []models.Post) models.Post {
 		var latestPost models.Post
 		latestPost.Created, _ = time.Parse("2006-01-02 15:04:05", "2006-01-02 15:04:05")
diff --git a/template/home.page.html b/template/home.page.html
index 8d16432..abe9c42 100644
--- a/template/home.page.html
+++ b/template/home.page.html
@@ -59,8 +59,12 @@ <h1 class="modal-title fs-5" id="createNewTopicModalLabel">What this topic will
                           <br><strong>{{ .Subject }} </strong>
                       </a>
                   </td>
+                  {{ $lenPosts := postsLen .Posts}}
                   {{ $lastPost := findLastPost .Posts }}
-                  {{ $dateLastPostCreated := convertTime $lastPost }}
+                  {{ $dateLastPostCreated := "" }}
+                  {{ if gt $lenPosts 0 }}
+                    {{ $dateLastPostCreated = convertTime $lastPost }}
+                  {{ end }}
                   
                   <td><!-- 2column -->From:<br><img src="{{ .PictureUserWhoCreatedLastPost }}" class="logo_ava" alt="picture"> <br>{{ .UserNameWhoCreatedLastPost }}<br> Posted: {{$dateLastPostCreated}}
                     {{ $lastPostShorten := shortenPost .Posts}}