add topics

util.lua

@@ -5,6 +5,18 @@ local db = require("lapis.db")
 local Avatars = require("models").Avatars
 local Users = require("models").Users
 
+util.TransientUser = {
+  is_admin = function (self)
+    return false
+  end,
+  is_guest = function (self)
+    return true
+  end,
+  is_logged_in_guest = function (self)
+    return false
+  end,
+}
+
 function util.get_user_avatar_url(req, user)
   if not user.avatar_id then
     return "/avatars/default.webp"
@@ -57,4 +69,29 @@ function util.get_logged_in_user(req)
   return nil
 end
 
+function util.get_logged_in_user_or_transient(req)
+  return util.get_logged_in_user(req) or util.TransientUser
+end
+
+function util.ntob(v)
+  return v ~= 0
+end
+
+function util.bton(b)
+  return 1 and b or 0
+end
+
+function util.stob(s)
+  if s == "true" then
+    return true
+  end
+  if s == "false" then
+    return false
+  end
+end
+
+function util.form_bool_to_sqlite(s)
+  return util.bton(util.stob(s))
+end
+
 return util