Add basic html/rss support for book lists

lib/list.go

@@ -0,0 +1,86 @@
+package trantor
+
+import (
+	"net/http"
+	"strings"
+
+	"gitlab.com/trantor/trantor/lib/database"
+
+	log "github.com/cihub/seelog"
+	"github.com/gorilla/mux"
+)
+
+func listHandler(h handler) {
+	listID := mux.Vars(h.r)["listID"]
+	list, err := h.db.GetBookList(listID)
+	if err != nil {
+		log.Error("Error loading list ", listID, ": ", err)
+		h.sess.Notify("Something went wrong!", "Could not load the list list", "error")
+		http.Redirect(h.w, h.r, h.r.Referer(), http.StatusFound)
+		return
+	}
+	if list == nil {
+		notFound(h)
+		return
+	}
+
+	var data listData
+	data.S = GetStatus(h)
+	data.S.Title = list.Title + " -- " + data.S.Title
+	data.List = list
+	h.load("list", data)
+}
+
+type listData struct {
+	S    Status
+	List *database.BookList
+}
+
+func listPostHandler(h handler) {
+	if h.sess.User == "" {
+		notFound(h)
+		return
+	}
+
+	listTitle := h.r.FormValue("list")
+	bookID := h.r.FormValue("book_id")
+	userLists, err := h.db.GetListsByUser(h.sess.User)
+	if err != nil {
+		log.Error("Error loading user (", h.sess.User, ") lists: ", err)
+		h.sess.Notify("Something went wrong!", "Could not add book to the list", "error")
+		http.Redirect(h.w, h.r, h.r.Referer(), http.StatusFound)
+		return
+	}
+
+	var list *database.BookList
+	for _, l := range userLists {
+		if strings.ToLower(l.Title) == strings.ToLower(listTitle) {
+			list = &l
+			break
+		}
+	}
+
+	var listID string
+	if list == nil {
+		listID = genID()
+		err = h.db.NewBookList(listID, listTitle, h.sess.User, []string{})
+		if err != nil {
+			log.Error("Error creating list ", listTitle, " by user ", h.sess.User, ": ", err)
+			h.sess.Notify("Something went wrong!", "Could not add book to the list", "error")
+			http.Redirect(h.w, h.r, h.r.Referer(), http.StatusFound)
+			return
+		}
+	} else {
+		listID = list.ListID
+	}
+
+	err = h.db.AddBookToList(listID, bookID)
+	if err != nil {
+		log.Error("Error adding book ", bookID, " to list ", listTitle, "(", listID, "): ", err)
+		h.sess.Notify("Something went wrong!", "Could not add book to the list", "error")
+		http.Redirect(h.w, h.r, h.r.Referer(), http.StatusFound)
+		return
+	}
+
+	http.Redirect(h.w, h.r, "/list/"+listID, http.StatusFound)
+}