Golang shared.Template函数代码示例

//PageCreate handles /admin/new_page route
func PageCreate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		data["Title"] = "New page"
		data["Active"] = "pages"
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("pages/form").Execute(w, data)

	} else if r.Method == "POST" {

		page := &models.Page{
			Name:      r.PostFormValue("name"),
			Content:   r.PostFormValue("content"),
			Published: shared.Atob(r.PostFormValue("published")),
		}

		if err := page.Insert(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, "/admin/new_page", 303)
			return
		}
		http.Redirect(w, r, "/admin/pages", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//ArchiveShow handles GET /archives/:year-:month route
func ArchiveShow(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		param := r.URL.Path[len("/archives/"):]
		ym := strings.Split(param, "-")
		if len(ym) != 2 {
			w.WriteHeader(400)
			tmpl.Lookup("errors/400").Execute(w, nil)
			return
		}
		year, _ := strconv.Atoi(ym[0])
		month, _ := strconv.Atoi(ym[1])
		list, err := models.GetPostsByArchive(year, month)
		if err != nil {
			w.WriteHeader(500)
			tmpl.Lookup("errors/500").Execute(w, nil)
			return
		}
		data["Title"] = fmt.Sprintf("%s %s %d", "Archives for", time.Month(month).String(), year)
		data["List"] = list
		data["Active"] = fmt.Sprintf("archives/%d-%02d", year, month)
		tmpl.Lookup("archives/show").Execute(w, data)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//TagCreate handles /admin/new_tag route
func TagCreate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		data["Title"] = "New tag"
		data["Active"] = "tags"
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("tags/form").Execute(w, data)

	} else if r.Method == "POST" {

		tag := &models.Tag{
			Name: r.PostFormValue("name"),
		}

		if err := tag.Insert(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, "/admin/new_tag", 303)
			return
		}
		http.Redirect(w, r, "/admin/tags", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//PageDelete handles /admin/delete_page route
func PageDelete(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)

	if r.Method == "POST" {

		page, err := models.GetPage(r.PostFormValue("id"))
		if err != nil {
			log.Printf("ERROR: %s\n", err)
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, shared.ErrorData(err))
		}

		if err := page.Delete(); err != nil {
			log.Printf("ERROR: %s\n", err)
			w.WriteHeader(500)
			tmpl.Lookup("errors/500").Execute(w, shared.ErrorData(err))
			return
		}
		http.Redirect(w, r, "/admin/pages", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//Home handles GET / route
func Home(w http.ResponseWriter, r *http.Request) {
	tmpl, data := shared.Template(r), shared.DefaultData(r)
	if r.RequestURI != "/" {
		w.WriteHeader(404)
		tmpl.Lookup("errors/404").Execute(w, nil)
		return
	}
	data["Title"] = "Welcome to blog boilerplate"
	data["Active"] = "home"
	tmpl.Lookup("home/show").Execute(w, data)
}

//PostUpdate handles /admin/edit_post/:id route
func PostUpdate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		id := r.URL.Path[len("/admin/edit_post/"):]
		post, err := models.GetPost(id)
		if err != nil {
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, shared.ErrorData(err))
			return
		}
		tags, err := models.GetTags()
		if err != nil {
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, nil)
			return
		}

		data["Title"] = "Edit post"
		data["Active"] = "posts"
		data["Post"] = post
		data["Tags"] = tags
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("posts/form").Execute(w, data)

	} else if r.Method == "POST" {

		r.ParseForm()
		post := &models.Post{
			ID:        shared.Atoi64(r.PostFormValue("id")),
			Name:      r.PostFormValue("name"),
			Content:   r.PostFormValue("content"),
			Published: shared.Atob(r.PostFormValue("published")),
			Tags:      r.Form["tags"], //PostFormValue returns only first value
		}

		if err := post.Update(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, r.RequestURI, 303)
			return
		}
		http.Redirect(w, r, "/admin/posts", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//SignUp handles /signup route
func SignUp(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)

	if r.Method == "GET" {

		data["Title"] = "Sign up"
		data["Active"] = "signup"
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("auth/signup").Execute(w, data)

	} else if r.Method == "POST" {

		user := &models.User{
			Email:    r.PostFormValue("email"),
			Password: r.PostFormValue("password"),
		}
		//check existence
		userDB, _ := models.GetUserByEmail(user.Email)
		if userDB.ID != 0 {
			session.AddFlash("User exists")
			session.Save(r, w)
			http.Redirect(w, r, "/signup", 303)
			return
		}
		//create user
		err := user.HashPassword()
		if err != nil {
			session.AddFlash("Error whilst registering user.")
			session.Save(r, w)
			log.Printf("ERROR: can't register user: %v", err)
			http.Redirect(w, r, "/signup", 303)
			return
		}
		if err := user.Insert(); err != nil {
			session.AddFlash("Error whilst registering user.")
			session.Save(r, w)
			log.Printf("ERROR: can't register user: %v", err)
			http.Redirect(w, r, "/signup", 303)
			return
		}
		session.Values["user_id"] = user.ID
		session.Save(r, w)
		http.Redirect(w, r, "/", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//UserUpdate handles /admin/edit_user/:id route
func UserUpdate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		id := r.URL.Path[len("/admin/edit_user/"):]
		user, err := models.GetUser(id)
		if err != nil {
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, shared.ErrorData(err))
			return
		}

		data["Title"] = "Edit user"
		data["Active"] = "users"
		data["User"] = user
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("users/form").Execute(w, data)

	} else if r.Method == "POST" {

		user := &models.User{
			ID:       shared.Atoi64(r.PostFormValue("id")),
			Name:     r.PostFormValue("name"),
			Email:    r.PostFormValue("email"),
			Password: r.PostFormValue("password"),
		}

		if err := user.HashPassword(); err != nil {
			log.Printf("ERROR: %s\n", err)
			w.WriteHeader(500)
			tmpl.Lookup("errors/500").Execute(w, shared.ErrorData(err))
			return
		}
		if err := user.Update(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, r.RequestURI, 303)
			return
		}
		http.Redirect(w, r, "/admin/users", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//RssXML handles GET /rss route
func RssXML(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	if r.Method == "GET" {

		now := time.Now()
		domain := shared.GetConfig().Domain
		feed := &feeds.Feed{
			Title:       "Blog boilerplate",
			Link:        &feeds.Link{Href: domain},
			Description: "Basic blog boilerplate in Go",
			Author:      &feeds.Author{Name: "Blog Author"},
			Created:     now,
			Copyright:   fmt.Sprintf("© %s", "Blog"),
		}

		feed.Items = make([]*feeds.Item, 0)
		posts, err := models.GetPublishedPosts()
		if err != nil {
			log.Printf("ERROR: %s\n", err)
			w.WriteHeader(500)
			tmpl.Lookup("errors/500").Execute(w, shared.ErrorData(err))
			return
		}
		for i := range posts {
			feed.Items = append(feed.Items, &feeds.Item{
				Id:          fmt.Sprintf("%s/posts/%d", domain, posts[i].ID),
				Title:       posts[i].Name,
				Link:        &feeds.Link{Href: fmt.Sprintf("%s/posts/%d", domain, posts[i].ID)},
				Description: string(posts[i].Excerpt()),
				Author:      &feeds.Author{Name: posts[i].Author.Name},
				Created:     now,
			})
		}

		rss, err := feed.ToRss()
		if err != nil {
			log.Printf("ERROR: %s\n", err)
			w.WriteHeader(500)
			tmpl.Lookup("errors/500").Execute(w, shared.ErrorData(err))
			return
		}
		fmt.Fprintln(w, rss)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//CommentReply handles /admin/new_comment route
func CommentReply(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		user := context.Get(r, "user").(*models.User)
		parentID := shared.Atoi64(r.FormValue("parent_id"))
		parent, _ := models.GetComment(parentID)
		comment := &models.Comment{
			PostID:     parent.PostID,
			ParentID:   null.NewInt(parentID, parentID > 0),
			AuthorName: user.Name,
		}

		data["Title"] = "Reply"
		data["Active"] = "comments"
		data["Comment"] = comment
		data["Flash"] = session.Flashes("comments")
		session.Save(r, w)
		tmpl.Lookup("comments/form").Execute(w, data)

	} else if r.Method == "POST" {

		parentID := shared.Atoi64(r.PostFormValue("parent_id"))
		comment := &models.Comment{
			PostID:     shared.Atoi64(r.PostFormValue("post_id")),
			ParentID:   null.NewInt(parentID, parentID > 0),
			AuthorName: r.PostFormValue("author_name"),
			Content:    r.PostFormValue("content"),
			Published:  shared.Atob(r.PostFormValue("published")),
		}

		if err := comment.Insert(); err != nil {
			session.AddFlash(err.Error(), "comments")
			session.Save(r, w)
			http.Redirect(w, r, r.RequestURI, 303)
			return
		}
		http.Redirect(w, r, "/admin/comments", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//SignIn handles /signin route
func SignIn(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)

	if r.Method == "GET" {

		data["Title"] = "Sign in"
		data["Active"] = "signin"
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("auth/signin").Execute(w, data)

	} else if r.Method == "POST" {

		user := &models.User{
			Email:    r.PostFormValue("email"),
			Password: r.PostFormValue("password"),
		}
		//check existence
		userDB, _ := models.GetUserByEmail(user.Email)
		if userDB.ID == 0 {
			log.Printf("ERROR: Login failed, IP: %s, Email: %s\n", r.RemoteAddr, user.Email)
			session.AddFlash("Email or password incorrect")
			session.Save(r, w)
			http.Redirect(w, r, "/signin", 303)
			return
		}
		//create user
		if err := userDB.ComparePassword(user.Password); err != nil {
			log.Printf("ERROR: Login failed, IP: %s, Email: %s\n", r.RemoteAddr, user.Email)
			session.AddFlash("Email or password incorrect")
			session.Save(r, w)
			http.Redirect(w, r, "/signin", 303)
			return
		}

		session.Values["user_id"] = userDB.ID
		session.Save(r, w)
		http.Redirect(w, r, "/", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//PostCreate handles /admin/new_post route
func PostCreate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		tags, err := models.GetTags()
		if err != nil {
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, nil)
			return
		}
		data["Title"] = "New post"
		data["Active"] = "posts"
		data["Tags"] = tags
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("posts/form").Execute(w, data)

	} else if r.Method == "POST" {

		r.ParseForm()
		post := &models.Post{
			Name:      r.PostFormValue("name"),
			Content:   r.PostFormValue("content"),
			Published: shared.Atob(r.PostFormValue("published")),
			Tags:      r.Form["tags"], //PostFormValue returns only first value
		}

		if user := context.Get(r, "user"); user != nil {
			post.UserID = null.NewInt(user.(*models.User).ID, user.(*models.User).ID > 0)
		}
		if err := post.Insert(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, "/admin/new_post", 303)
			return
		}
		http.Redirect(w, r, "/admin/posts", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//CommentUpdate handles /admin/edit_comment/:id route
func CommentUpdate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		id := r.URL.Path[len("/admin/edit_comment/"):]
		comment, err := models.GetComment(id)
		if err != nil {
			w.WriteHeader(404)
			tmpl.Lookup("errors/404").Execute(w, shared.ErrorData(err))
			return
		}

		data["Title"] = "Edit comment"
		data["Active"] = "comments"
		data["Comment"] = comment
		data["Flash"] = session.Flashes("comments")
		session.Save(r, w)
		tmpl.Lookup("comments/form").Execute(w, data)

	} else if r.Method == "POST" {

		r.ParseForm()
		comment := &models.Comment{
			ID:        shared.Atoi64(r.PostFormValue("id")),
			Content:   r.PostFormValue("content"),
			Published: shared.Atob(r.PostFormValue("published")),
		}

		if err := comment.Update(); err != nil {
			session.AddFlash(err.Error(), "comments")
			session.Save(r, w)
			http.Redirect(w, r, r.RequestURI, 303)
			return
		}
		http.Redirect(w, r, "/admin/comments", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//PageUpdate handles /admin/edit_page/:id route
func PageUpdate(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	session := shared.Session(r)
	data := shared.DefaultData(r)
	if r.Method == "GET" {

		id := r.URL.Path[len("/admin/edit_page/"):]
		page, err := models.GetPage(id)
		if err != nil {
			w.WriteHeader(400)
			tmpl.Lookup("errors/400").Execute(w, shared.ErrorData(err))
			return
		}

		data["Title"] = "Edit page"
		data["Active"] = "pages"
		data["Page"] = page
		data["Flash"] = session.Flashes()
		session.Save(r, w)
		tmpl.Lookup("pages/form").Execute(w, data)

	} else if r.Method == "POST" {

		page := &models.Page{
			ID:        shared.Atoi64(r.PostFormValue("id")),
			Name:      r.PostFormValue("name"),
			Content:   r.PostFormValue("content"),
			Published: shared.Atob(r.PostFormValue("published")),
		}

		if err := page.Update(); err != nil {
			session.AddFlash(err.Error())
			session.Save(r, w)
			http.Redirect(w, r, r.RequestURI, 303)
			return
		}
		http.Redirect(w, r, "/admin/pages", 303)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}

//Search handles POST /search route
func Search(w http.ResponseWriter, r *http.Request) {
	tmpl := shared.Template(r)
	data := shared.DefaultData(r)
	if r.Method == "POST" {

		query := r.PostFormValue("query")
		//full text search by name & description. Btw you can extend search to multi-table scenario with rankings, etc
		//fts index and SearchPosts assume language is english
		posts, _ := models.SearchPosts(query)
		data["Title"] = fmt.Sprintf("%s %q", "Search results for", query)
		data["Posts"] = posts
		tmpl.Lookup("search/results").Execute(w, data)

	} else {
		err := fmt.Errorf("Method %q not allowed", r.Method)
		log.Printf("ERROR: %s\n", err)
		w.WriteHeader(405)
		tmpl.Lookup("errors/405").Execute(w, shared.ErrorData(err))
	}
}