Added some models

User
Item
Department
Categorie
AssignmentLog
Room

app/models/room.rb

@@ -0,0 +1,11 @@
+class Room < ApplicationRecord
+  has_many :items, dependent: :nullify
+  has_many :assignment_logs, dependent: :destroy
+  
+  validates :name, presence: true, uniqueness: true
+
+  # Für das Raum-Auswahlfeld im Formular
+  def name_with_building
+    building.present? ? "#{name} (Gebäude #{building})" : name
+  end
+end