New structure (#7)

pkg/models/list_users_rights.go

@@ -0,0 +1,38 @@
+package models
+
+import (
+	"code.vikunja.io/api/pkg/log"
+)
+
+// CanCreate checks if the user can create a new user <-> list relation
+func (lu *ListUser) CanCreate(doer *User) bool {
+	// Get the list and check if the user has write access on it
+	l := List{ID: lu.ListID}
+	if err := l.GetSimpleByID(); err != nil {
+		log.Log.Error("Error occurred during CanCreate for ListUser: %s", err)
+		return false
+	}
+	return l.CanWrite(doer)
+}
+
+// CanDelete checks if the user can delete a user <-> list relation
+func (lu *ListUser) CanDelete(doer *User) bool {
+	// Get the list and check if the user has write access on it
+	l := List{ID: lu.ListID}
+	if err := l.GetSimpleByID(); err != nil {
+		log.Log.Error("Error occurred during CanDelete for ListUser: %s", err)
+		return false
+	}
+	return l.CanWrite(doer)
+}
+
+// CanUpdate checks if the user can update a user <-> list relation
+func (lu *ListUser) CanUpdate(doer *User) bool {
+	// Get the list and check if the user has write access on it
+	l := List{ID: lu.ListID}
+	if err := l.GetSimpleByID(); err != nil {
+		log.Log.Error("Error occurred during CanUpdate for ListUser: %s", err)
+		return false
+	}
+	return l.CanWrite(doer)
+}