diff --git a/src/prep/prep.cpp b/src/prep/prep.cpp
index 52253dc..c389448 100644
--- a/src/prep/prep.cpp
+++ b/src/prep/prep.cpp
@@ -18,16 +18,10 @@ bool Action::operator==(const Action &other) const {
     return this->name == other.name;
 }
 
-Role::Role(std::initializer_list<Action> actions) {
-    for (auto &a : actions) {
-        this->actions.push_back(a);
-    }
+Role::Role(std::initializer_list<Action> actions): Role(std::vector<Action>(actions)) {
 }
 
-Role::Role(std::vector<Action> actions) {
-    for (auto &a : actions) {
-        this->actions.push_back(a);
-    }
+Role::Role(std::vector<Action> actions): actions(actions) {
 }
 
 Player::Player(uint32_t id, std::string username, Role role, PlayerStatus playerStatus):
@@ -68,14 +62,10 @@ Event::Event(std::string title,
     title(title),
     utcTimestampCreatedAt(createUTCTimestamp(utcTimestampCreatedAt)),
     numberNight(numberNight),
-    isVisible(isVisible) {
+    isVisible(isVisible),
+    prohibits(prohibits),
+    allows(allows) {
     this->utcTimestampCreatedAt = createUTCTimestamp(utcTimestampCreatedAt);
-    for (auto &a : prohibits) {
-        this->prohibits.push_back(a);
-    }
-    for (auto &a : allows) {
-        this->allows.push_back(a);
-    }
 }
 
 Event::Event(std::string title,