if no start is passed, default to year end review (#259)

* if no start is passed, default to year end review

* update snapshot

src/rock/models/finances/__tests__/__snapshots__/mutations.js.snap

@@ -40,6 +40,10 @@ Array [
     accountName: String
     gateway: String = \"NMI Gateway\",
   ): SavePaymentMutationResponse",
+  "updateSavedPayment(
+    entityId: Int
+    name: String!
+  ): SavePaymentMutationResponse",
   "cancelSchedule(
     id: ID
     entityId: Int

src/rock/models/finances/__tests__/resolver.js

@@ -1,3 +1,4 @@
+import moment from "moment";
 import resolver from "../resolver";
 
 import render from "../util/statement";
@@ -391,7 +392,10 @@ describe("Mutation", () => {
         null, { people: [1,2], start: "", end: "" }, { models, person }
       )
 
-      expect(models.Transaction.getStatement).toBeCalledWith({ start: "", end: "", "givingGroupId": 1, "people": [1, 2] });
+
+
+      const defaultStart = moment().startOf("year");
+      expect(models.Transaction.getStatement).toBeCalledWith({ start: defaultStart, end: "", "givingGroupId": 1, "people": [1, 2] });
       expect(models.Person.getHomesFromId).toBeCalledWith(1);
       expect(render).toBeCalledWith({home: 1, person: person, total: 0, transactions: []});
     });

src/rock/models/finances/resolver.js

@@ -1,4 +1,5 @@
 import { flatten } from "lodash";
+import moment from "moment";
 
 import { createGlobalId } from "../../../util";
 import renderStatement from "./util/statement";
@@ -132,6 +133,10 @@ export default {
     transactionStatement: async (_, { people, start, end }, { models, person }) => {
       if (!person) return ({ success: false, error: "You must be logged in" });
 
+      // default to start of current year if not passed
+      // eslint-disable-next-line
+      if (!start) start = moment().startOf("year");
+
       const homeLookup = models.Person.getHomesFromId(person.Id).then(x => x[0]);
 
       const transactionLookup = models.Transaction.getStatement({