Generic handler for object history

utils/history/history.go

@@ -0,0 +1,30 @@
+package history
+
+import (
+	"net/http"
+
+	"github.com/aerogo/aero"
+	"github.com/animenotifier/arn"
+	"github.com/animenotifier/notify.moe/utils"
+)
+
+// Handler returns a function that renders the history of any object.
+func Handler(render func(interface{}, []*arn.EditLogEntry, *arn.User) string, typeNames ...string) func(ctx *aero.Context) string {
+	return func(ctx *aero.Context) string {
+		id := ctx.Get("id")
+		user := utils.GetUser(ctx)
+		obj, err := arn.DB.Get(typeNames[0], id)
+
+		if err != nil {
+			return ctx.Error(http.StatusNotFound, typeNames[0]+" not found", err)
+		}
+
+		entries := arn.FilterEditLogEntries(func(entry *arn.EditLogEntry) bool {
+			return entry.ObjectID == id && arn.Contains(typeNames, entry.ObjectType)
+		})
+
+		arn.SortEditLogEntriesLatestFirst(entries)
+
+		return ctx.HTML(render(obj, entries, user))
+	}
+}