add indexes on payment transactions model (#4830)

app/models/payment_transaction.rb

@@ -2,7 +2,7 @@ class PaymentTransaction
   include Mongoid::Document
   include Mongoid::Timestamps
 
-  belongs_to :family
+  belongs_to :family, index: true
 
   field :payment_transaction_id, type: String
   field :carrier_id, type: BSON::ObjectId
@@ -13,6 +13,12 @@ class PaymentTransaction
   field :submitted_at, type: DateTime
   field :source, type: String
 
+  index({ status: 1 })
+  index({ enrollment_id: 1 })
+  index({ enrollment_effective_date: 1 })
+  index({ payment_transaction_id: 1 })
+  index({ carrier_id: 1 })
+
   before_save :generate_payment_transaction_id, :set_submitted_at
 
   def generate_payment_transaction_id

spec/models/payment_transaction_spec.rb

@@ -39,4 +39,15 @@
       expect(subject.source).to eq source
     end
   end
+
+  context "payment transactions" do
+    it 'should have the indexes' do
+      PaymentTransaction.create_indexes
+      indexes = PaymentTransaction.collection.indexes.map { |index| index['key'] }
+      expect(indexes).to include({:family_id => 1})
+      expect(indexes).to include({:status => 1})
+      expect(indexes).to include({:enrollment_id => 1})
+      expect(indexes).to include({:payment_transaction_id => 1})
+    end
+  end
 end