add primary email address to Bookkeeping extra report

CRM/Additionalreports/Form/Report/BookkeepingExtra.php

@@ -154,6 +154,21 @@ class CRM_Additionalreports_Form_Report_BookkeepingExtra extends CRM_Report_Form
           ),
         ),
       ),
+      'civicrm_email' => array(
+        'dao' => 'CRM_Core_DAO_Email',
+        'fields' => array(
+          'email' => array(
+            'title' => ts('Email'),
+            'no_repeat' => TRUE,
+          ),
+        ),
+        'grouping' => 'contact-fields',
+        'order_bys' => array(
+          'email' => array(
+            'title' => ts('Email'),
+          ),
+        ),
+      ),
       'civicrm_membership' => array(
         'dao' => 'CRM_Member_DAO_Membership',
         'fields' => array(
@@ -452,6 +467,12 @@ class CRM_Additionalreports_Form_Report_BookkeepingExtra extends CRM_Report_Form
               LEFT JOIN civicrm_batch batch
                     ON  ent_batch.batch_id = batch.id";
     }
+    if ($this->isTableSelected('civicrm_email')) {
+      $this->_from .= "
+            LEFT JOIN  civicrm_email {$this->_aliases['civicrm_email']}
+                   ON ({$this->_aliases['civicrm_contact']}.id = {$this->_aliases['civicrm_email']}.contact_id AND
+                      {$this->_aliases['civicrm_email']}.is_primary = 1) ";
+    }
 
     $this->getPermissionedFTQuery($this, "civicrm_line_item_1");
   }