website/pkg/controller/forum/browse.go

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package forum
import (
"net/http"
"code.nonshy.com/nonshy/website/pkg/config"
"code.nonshy.com/nonshy/website/pkg/models"
"code.nonshy.com/nonshy/website/pkg/session"
"code.nonshy.com/nonshy/website/pkg/templates"
)
// Explore all existing forums.
func Explore() http.HandlerFunc {
// This page shares a template with the board index (Categories) page.
tmpl := templates.Must("forum/index.html")
// Whitelist for ordering options.
var sortWhitelist = []string{
"created_at desc",
"created_at asc",
"title asc",
"title desc",
// Special sort handlers.
// See PaginateForums for expanded handlers for these.
"by_followers",
"by_latest",
"by_threads",
"by_posts",
"by_users",
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var (
searchTerm = r.FormValue("q")
search = models.ParseSearchString(searchTerm)
show = r.FormValue("show")
categories = []string{}
subscribed = r.FormValue("show") == "followed"
sort = r.FormValue("sort")
sortOK bool
)
// Sort options.
for _, v := range sortWhitelist {
if sort == v {
sortOK = true
break
}
}
if !sortOK {
sort = sortWhitelist[0]
}
// Set of forum categories to filter for.
switch show {
case "official":
categories = config.ForumCategories
case "community":
categories = []string{""}
}
// 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
}
var pager = &models.Pagination{
Page: 1,
PerPage: config.PageSizeBrowseForums,
Sort: sort,
}
pager.ParsePage(r)
// Browse all forums (no category filter for official)
forums, err := models.PaginateForums(currentUser, categories, search, subscribed, pager)
if err != nil {
session.FlashError(w, r, "Couldn't paginate forums: %s", err)
templates.Redirect(w, "/")
return
}
// Bucket the forums into their categories for easy front-end.
categorized := models.CategorizeForums(forums, nil)
// Map statistics for these forums.
forumMap := models.MapForumStatistics(forums)
followMap := models.MapForumMemberships(currentUser, forums)
var vars = map[string]interface{}{
"CurrentForumTab": "explore",
"IsExploreTab": true,
"Pager": pager,
"Categories": categorized,
"ForumMap": forumMap,
"FollowMap": followMap,
"FollowersMap": models.MapForumFollowers(forums),
// Search filters
"SearchTerm": searchTerm,
"Show": show,
"Sort": sort,
// Current viewer's forum quota.
"ForumQuota": models.ComputeForumQuota(currentUser),
}
if err := tmpl.Execute(w, r, vars); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
})
}