Add Job#load to load info from DB

lib/crono/job.rb

@@ -35,6 +35,10 @@ module Crono
       model.update(last_performed_at: last_performed_at)
     end
 
+    def load
+      self.last_performed_at = model.last_performed_at
+    end
+
   private
     def model
       @model ||= Crono::CronoJob.find_or_create_by(job_id: job_id)

spec/job_spec.rb

@@ -40,4 +40,17 @@ describe Crono::Job do
       expect(@crono_job.last_performed_at).to be_eql(job.last_performed_at)
     end
   end
+
+  describe "#load" do
+    before do
+      @saved_last_performed_at = job.last_performed_at = Time.now
+      job.save
+    end
+
+    it "should load info from DB" do
+      @job = Crono::Job.new(TestJob, period)
+      @job.load
+      expect(@job.last_performed_at).to be_eql @saved_last_performed_at
+    end
+  end
 end