website/pkg/controller/forum/thread.go
Noah aa8d719fc4 Comment Thread Subscriptions
* Add ability to (un)subscribe from comment threads on Forums and Photos.
* Creating a forum post, replying to a post or adding a comment to a photo
  automatically subscribes you to be notified when somebody else adds a
  comment to the thing later.
* At the top of each comment thread is a link to disable or re-enable your
  subscription. You can join a subscription without even needing to comment.
  If you click to disable notifications, they stay disabled even if you
  add another comment later.
2022-08-27 11:42:48 -07:00

93 lines
2.4 KiB
Go

package forum
import (
"net/http"
"regexp"
"strconv"
"code.nonshy.com/nonshy/website/pkg/config"
"code.nonshy.com/nonshy/website/pkg/log"
"code.nonshy.com/nonshy/website/pkg/models"
"code.nonshy.com/nonshy/website/pkg/session"
"code.nonshy.com/nonshy/website/pkg/templates"
)
var ThreadPathRegexp = regexp.MustCompile(`^/forum/thread/(\d+)$`)
// Thread view for a specific board index.
func Thread() http.HandlerFunc {
tmpl := templates.Must("forum/thread.html")
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Parse the path parameters
var (
forum *models.Forum
thread *models.Thread
)
if m := ThreadPathRegexp.FindStringSubmatch(r.URL.Path); m == nil {
log.Error("Regexp failed to parse: %s", r.URL.Path)
templates.NotFoundPage(w, r)
return
} else {
if threadID, err := strconv.Atoi(m[1]); err != nil {
session.FlashError(w, r, "Invalid thread ID in the address bar.")
templates.Redirect(w, "/forum")
return
} else {
// Load the thread.
if found, err := models.GetThread(uint64(threadID)); err != nil {
session.FlashError(w, r, "That thread does not exist.")
templates.Redirect(w, "/forum")
return
} else {
thread = found
forum = &thread.Forum
}
}
}
// Get the current user.
currentUser, err := session.CurrentUser(r)
if err != nil {
session.FlashError(w, r, "Couldn't get current user: %s", err)
templates.Redirect(w, "/")
return
}
// Ping the view count on this thread.
if err := thread.View(); err != nil {
log.Error("Couldn't ping view count on thread %d: %s", thread.ID, err)
}
// Paginate the comments on this thread.
var pager = &models.Pagination{
Page: 1,
PerPage: config.PageSizeThreadList,
Sort: "created_at asc",
}
pager.ParsePage(r)
comments, err := models.PaginateComments(currentUser, "threads", thread.ID, pager)
if err != nil {
session.FlashError(w, r, "Couldn't paginate comments: %s", err)
templates.Redirect(w, "/")
return
}
// Is the current user subscribed to notifications on this thread?
_, isSubscribed := models.IsSubscribed(currentUser, "threads", thread.ID)
var vars = map[string]interface{}{
"Forum": forum,
"Thread": thread,
"Comments": comments,
"Pager": pager,
"IsSubscribed": isSubscribed,
}
if err := tmpl.Execute(w, r, vars); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
})
}