phase002 complete

app/models/fuel_entry.rb

@@ -0,0 +1,18 @@
+class FuelEntry < ApplicationRecord
+  belongs_to :vehicle
+  belongs_to :updated_by_user, class_name: "User"
+
+  validates :odometer, presence: true, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
+  validates :gallons_pumped, presence: true, numericality: { greater_than: 0 }
+  validates :price_paid, presence: true, numericality: { greater_than: 0 }
+  validates :date, presence: true
+  validate :date_cannot_be_in_the_future
+
+  private
+
+  def date_cannot_be_in_the_future
+    return if date.blank? || date <= Date.current
+
+    errors.add(:date, "can't be in the future")
+  end
+end