Added user model and fixed reference in migration

db/migrate/20240727101347_create_jobs.rb

@@ -1,8 +1,8 @@
 class CreateJobs < ActiveRecord::Migration[7.1]
   def change
     create_table :jobs do |t|
-      t.references :operator_id, null: false, foreign_key: true
-      t.references :costumer_id, null: false, foreign_key: true
+      t.references :operator, null: true
+      t.references :costumer, null: true
       t.string :operator_firstname
       t.string :operator_lastname
       t.string :costumer_firstname

db/migrate/20240730214152_create_users.rb

@@ -0,0 +1,13 @@
+class CreateUsers < ActiveRecord::Migration[7.1]
+  def change
+    create_table :users do |t|
+      t.string :firstname
+      t.string :lastname
+
+      t.timestamps
+    end
+
+    add_foreign_key :jobs, :users, column: :operator_id
+    add_foreign_key :jobs, :users, column: :costumer_id
+  end
+end