Add revrec attributes to plans

Tests/Recurly/Plan_Test.php

@@ -45,6 +45,12 @@ public function testGetPlan() {
     $this->assertTrue($plan->tax_exempt);
     $this->assertEquals('1234abcd', $plan->dunning_campaign_id);
     $this->assertEquals('fixed', $plan->pricing_model);
+    $this->assertEquals('twrbsq39zvo5', $plan->liability_gl_account_id);
+    $this->assertEquals('bwrks63lznoi', $plan->revenue_gl_account_id);
+    $this->assertEquals('rkslzn', $plan->performance_obligation_id);
+    $this->assertEquals('twrisqjjzvo5', $plan->setup_fee_liability_gl_account_id);
+    $this->assertEquals('dlrk123lzabc', $plan->setup_fee_revenue_gl_account_id);
+    $this->assertEquals('bks6noi', $plan->setup_fee_performance_obligation_id);
   }
 
   public function testGetPlanWithRamps() {

Tests/fixtures/plans/show-200.xml

@@ -34,6 +34,12 @@ Content-Type: application/xml; charset=utf-8
     <EUR type="integer">400</EUR>
   </setup_fee_in_cents>
   <dunning_campaign_id>1234abcd</dunning_campaign_id>
+  <liability_gl_account_id>twrbsq39zvo5</liability_gl_account_id>
+  <revenue_gl_account_id>bwrks63lznoi</revenue_gl_account_id>
+  <performance_obligation_id>rkslzn</performance_obligation_id>
+  <setup_fee_liability_gl_account_id>twrisqjjzvo5</setup_fee_liability_gl_account_id>
+  <setup_fee_revenue_gl_account_id>dlrk123lzabc</setup_fee_revenue_gl_account_id>
+  <setup_fee_performance_obligation_id>bks6noi</setup_fee_performance_obligation_id>
   <pricing_model>fixed</pricing_model>
   <custom_fields type="array">
     <custom_field>

lib/recurly/plan.php

@@ -36,6 +36,12 @@
  * @property boolean $auto_renew Determines whether subscriptions to this plan should auto-renew term at the end of the current term or expire. Defaults to true.
  * @property boolean $allow_any_item_on_subscriptions Used to determine whether items can be assigned as add-ons to individual subscriptions. If `true`, items can be assigned as add-ons to individual subscription add-ons. If `false`, only plan add-ons can be used.
  * @property string $dunning_campaign_id Unique ID to identify the dunning campaign used when dunning the invoice.
+ * @property string $liability_gl_account_id The ID of the liability general ledger account associated with the plan.
+ * @property string $revenue_gl_account_id The ID of the revenue general ledger account associated with the plan.
+ * @property string $setup_fee_liability_gl_account_id The ID of the liability general ledger account associated with the plan setup fee.
+ * @property string $setup_fee_revenue_gl_account_id The ID of the revenue general ledger account associated with the plan setup fee.
+ * @property string $performance_obligation_id The ID of the performance obligation associated with the plan.
+ * @property string $setup_fee_performance_obligation_id The ID of the performance obligation associated with the plan setup fee.
  */
 class Recurly_Plan extends Recurly_Resource
 {
@@ -125,16 +131,22 @@ protected function getWriteableAttributes() {
       'display_phone_number',
       'display_quantity',
       'dunning_campaign_id',
+      'liability_gl_account_id',
       'name',
       'payment_page_tos_link',
+      'performance_obligation_id',
       'plan_code',
       'plan_interval_length',
       'plan_interval_unit',
       'pricing_model',
       'ramp_intervals',
+      'revenue_gl_account_id',
       'revenue_schedule_type',
       'setup_fee_accounting_code',
       'setup_fee_in_cents',
+      'setup_fee_liability_gl_account_id',
+      'setup_fee_performance_obligation_id',
+      'setup_fee_revenue_gl_account_id',
       'setup_fee_revenue_schedule_type',
       'success_url',
       'tax_code',