Change createPayment to newPayment and add multi-payment put

docs/Payments.md

@@ -16,9 +16,10 @@ The entity helper that has been created for the payments functions exists in the
 
 This helper contains the following functions:
 
-* `createPayment(data[, options])`
+* `newPayment(data[, options])`
 * `getPayments([options])`
 * `getPayment(id[, modifiedAfter])`
+* `savePayments(data[, options])`
 
 ### Creating a new payment
 
@@ -148,3 +149,35 @@ xeroClient.core.payments.getPayment(somePaymentID)
          })
    });
 ```
+
+### Creating multiple payments in one go
+
+You can use the helper function `savePayments` to save an array of payments in one go.
+
+The following code provides guidance on how to set this up:
+
+```javascript
+
+var samplePayment1 = {
+  //some item...
+};
+
+var samplePayment2 = {
+  //some item...
+};
+
+var payments = [];
+
+payments.push(xeroClient.core.payments.newPayment(samplePayment1));
+payments.push(xeroClient.core.payments.newPayment(samplePayment));
+
+xeroClient.core.items.savePayments(payments)
+    .then(function(payments) {
+        //Payments have been created
+        var payment1 = payments.entities[0];
+        var payment2 = payments.entities[1];
+    })
+    .catch(function(err) {
+        //Some error occurred
+    });
+```

lib/entities/accounting/payment.js

@@ -27,7 +27,7 @@ var Payment = Entity.extend(PaymentSchema, {
         return this.application.putOrPostEntity(method, path, xml, {
             entityPath: 'Payments.Payment',
             entityConstructor: function(data) {
-                return self.application.core.payments.createPayment(data);
+                return self.application.core.payments.newPayment(data);
             }
         });
     }

lib/entity_helpers/accounting/payments.js

@@ -8,7 +8,7 @@ var Payments = EntityHelper.extend({
     constructor: function(application, options) {
         EntityHelper.call(this, application, Object.assign({ entityName: 'Payment', entityPlural: 'Payments' }, options));
     },
-    createPayment: function(data, options) {
+    newPayment: function(data, options) {
         return new Payment(this.application, data, options);
     },
     getPayment: function(id, modifiedAfter) {
@@ -17,11 +17,21 @@ var Payments = EntityHelper.extend({
                 return _.first(payments);
             })
     },
+    savePayments: function(payments, options) {
+        return this.saveEntities(payments, this.setUpOptions(options));
+    },
     getPayments: function(options) {
         var self = this;
         var clonedOptions = _.clone(options || {});
-        clonedOptions.entityConstructor = function(data) { return self.createPayment(data) };
+        clonedOptions.entityConstructor = function(data) { return self.newPayment(data) };
         return this.getEntities(clonedOptions)
+    },
+    setUpOptions: function(options) {
+        var self = this;
+        var clonedOptions = _.clone(options || {});
+        clonedOptions.entityPath = 'Payments.Payment';
+        clonedOptions.entityConstructor = function(data) { return self.newPayment(data) };
+        return clonedOptions;
     }
 })