Add GeoPushEvent model

app/models/geo_push_event.rb

+class GeoPushEvent < ActiveRecord::Base
+  belongs_to :project
+
+  validates :project, presence: true
+
+  enum event_type: { repository_updated: 0, wiki_updated: 1 }
+end

spec/models/geo_push_event_spec.rb

+require 'rails_helper'
+
+RSpec.describe GeoPushEvent, type: :model do
+  describe 'relationships' do
+    it { is_expected.to belong_to(:project) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:project) }
+  end
+
+  describe '#event_type' do
+    it { is_expected.to define_enum_for(:event_type).with([:repository_updated, :wiki_updated]) }
+  end
+end