Finished phase005

app/controllers/maintenance_entries_controller.rb

@@ -0,0 +1,61 @@
+class MaintenanceEntriesController < ApplicationController
+  ODOMETER_WARNING_THRESHOLD = 500
+
+  def create
+    @vehicle = Vehicle.find(params[:vehicle_id])
+    original_odometer = @vehicle.current_odometer
+    @maintenance_entry = @vehicle.maintenance_entries.build(maintenance_entry_params)
+    @maintenance_entry.updated_by_user = Current.user
+
+    if save_maintenance_entry
+      set_old_odometer_warning(original_odometer)
+      redirect_to @vehicle, notice: "Maintenance entry recorded."
+    else
+      prepare_vehicle_show
+      render "vehicles/show", status: :unprocessable_entity
+    end
+  end
+
+  private
+
+  def maintenance_entry_params
+    params.require(:maintenance_entry).permit(:name, :notes, :odometer, :cost, :date)
+  end
+
+  def save_maintenance_entry
+    saved = false
+
+    MaintenanceEntry.transaction do
+      if @maintenance_entry.save
+        update_vehicle_odometer(@maintenance_entry.odometer)
+        saved = true
+      end
+    end
+
+    saved
+  end
+
+  def update_vehicle_odometer(odometer)
+    return unless odometer > @vehicle.current_odometer
+
+    @vehicle.update!(current_odometer: odometer)
+  end
+
+  def set_old_odometer_warning(original_odometer)
+    return unless @maintenance_entry.odometer < original_odometer - ODOMETER_WARNING_THRESHOLD
+
+    message = "Maintenance odometer is more than 500 miles behind the current vehicle odometer."
+    flash[:warning] = message
+    Rails.logger.warn(
+      "#{message} vehicle_id=#{@vehicle.id} maintenance_entry_id=#{@maintenance_entry.id} " \
+        "entry_odometer=#{@maintenance_entry.odometer} vehicle_odometer=#{original_odometer}"
+    )
+  end
+
+  def prepare_vehicle_show
+    @maintenance_schedules = @vehicle.maintenance_schedules.order(:maintenance_type)
+    @fuel_entries = @vehicle.fuel_entries.includes(:updated_by_user).order(date: :desc, created_at: :desc)
+    @maintenance_entries = @vehicle.maintenance_entries.includes(:updated_by_user).order(date: :desc, created_at: :desc)
+    @fuel_entry = @vehicle.fuel_entries.build(date: Date.current)
+  end
+end