Added ability to delete articles

cmd/backend/articles.go

@@ -256,3 +256,21 @@ func (db *DB) AddArticleToCurrentIssue(id int64) error {
 
 	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
 }
+
+func (db *DB) DeleteArticle(id int64) error {
+	articlesTagsQuery := "DELETE FROM articles_tags WHERE article_id = ?"
+
+	_, err := db.Exec(articlesTagsQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting article %v from DB: %v", id, err)
+	}
+
+	articlesQuery := "DELETE FROM articles WHERE id = ?"
+
+	_, err = db.Exec(articlesQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting article %v from DB: %v", id, err)
+	}
+
+	return nil
+}

cmd/frontend/articles.go

@@ -476,3 +476,114 @@ func UploadImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 		json.NewEncoder(w).Encode(url)
 	}
 }
+
+func ShowPublishedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		publishedArticles, err := db.GetCertainArticles(true, false)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/published-articles.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", publishedArticles)
+	}
+}
+
+func ReviewArticleForDeletion(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		type htmlData struct {
+			Title       string
+			Description string
+			Content     template.HTML
+			Tags        []*b.Tag
+			ID          int64
+		}
+
+		var err error
+		data := new(htmlData)
+
+		data.ID, err = strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article, err := db.GetArticle(data.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data.Title, err = b.ConvertToPlain(article.Title)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data.Description, err = b.ConvertToPlain(article.Description)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		content, err := b.ConvertToHTML(article.Content)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Content = template.HTML(content)
+
+		data.Tags, err = db.GetArticleTags(data.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/to-be-deleted.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.DeleteArticle(id); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}

cmd/main.go

@@ -51,9 +51,10 @@ func main() {
 
 	mux.HandleFunc("GET /create-tag", f.CreateTag(config, store))
 	mux.HandleFunc("GET /create-user", f.CreateUser(config, store))
+	mux.HandleFunc("GET /delete-article/{id}", f.DeleteArticle(config, db, store))
+	mux.HandleFunc("GET /delete-user/{id}", f.DeleteUser(config, db, store))
 	mux.HandleFunc("GET /edit-self", f.EditSelf(config, db, store))
 	mux.HandleFunc("GET /edit-user/{id}", f.EditUser(config, db, store))
-	mux.HandleFunc("GET /delete-user/{id}", f.DeleteUser(config, db, store))
 	mux.HandleFunc("GET /hub", f.ShowHub(config, db, store))
 	mux.HandleFunc("GET /logout", f.Logout(config, store))
 	mux.HandleFunc("GET /pdf/get-list", c.ServePDFList(config))
@@ -61,8 +62,10 @@ func main() {
 	mux.HandleFunc("GET /pics/{pic}", f.ServeImage(config, store))
 	mux.HandleFunc("GET /publish-article/{id}", f.PublishArticle(config, db, store))
 	mux.HandleFunc("GET /publish-issue", f.PublishLatestIssue(config, db, store))
+	mux.HandleFunc("GET /published-articles", f.ShowPublishedArticles(config, db, store))
 	mux.HandleFunc("GET /reject-article/{id}", f.RejectArticle(config, db, store))
 	mux.HandleFunc("GET /rejected-articles", f.ShowRejectedArticles(config, db, store))
+	mux.HandleFunc("GET /review-article-for-deletion/{id}", f.ReviewArticleForDeletion(config, db, store))
 	mux.HandleFunc("GET /review-rejected-article/{id}", f.ReviewRejectedArticle(config, db, store))
 	mux.HandleFunc("GET /review-unpublished-article/{id}", f.ReviewUnpublishedArticle(config, db, store))
 	mux.HandleFunc("GET /rss", c.ServeRSS(config))

web/templates/hub.html

@@ -31,6 +31,7 @@
         <h2>Herausgeber</h2>
         <div class="grid grid-cols-2 gap-4">
             <button class="btn" hx-get="/this-issue" hx-target="#page-content">Diese Ausgabe</button>
+            <button class="btn" hx-get="/published-articles" hx-target="#page-content">Artikel löschen</button>
         </div>
     </div>
     {{end}}

web/templates/published-articles.html

@@ -0,0 +1,13 @@
+{{define "page-content"}}
+<h2>Artikel löschen</h2>
+
+<div class="flex flex-col gap-4">
+    {{range .}}
+    <button class="btn" hx-get="/review-article-for-deletion/{{.ID}}" hx-target="#page-content">
+        <h1 class="font-bold text-2xl">{{.Title}}</h1>
+        <p>{{.Description}}</p>
+    </button>
+    {{end}}
+    <button class="action-btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+</div>
+{{end}}

web/templates/to-be-deleted.html

@@ -0,0 +1,36 @@
+{{define "page-content"}}
+<h2>Artikel löschen</h2>
+
+<div>
+    <span>Titel</span>
+    <div class="bg-white border mb-3 px-2 py-2 rounded-md w-full">
+        {{.Title}}
+    </div>
+
+    <span>Beschreibung</span>
+    <div class="bg-white border mb-3 px-2 py-2 rounded-md w-full">
+        {{.Description}}
+    </div>
+
+    <span>Artikel</span>
+    <div class="bg-white border mb-3 px-2 py-2 rounded-md w-full">
+        <div class="prose">
+            {{.Content}}
+        </div>
+    </div>
+
+    <span>Tags</span>
+    <div class="bg-white border mb-3 px-2 py-2 rounded-md w-full">
+        {{range .Tags}}
+        {{.Name}}
+        <br>
+        {{end}}
+    </div>
+
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Löschen" hx-get="/delete-article/{{.ID}}"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+    </div>
+</div>
+{{end}}