From: Pradeep Nayak <pradpnayak@gmail.com>
Date: Thu, 22 Dec 2016 15:24:04 +0000 (+0530)
Subject: CRM-19585, created unction to calculate financial item amount when contribution is... 
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=d9553c2ef6336c9d42a249696546d154ed1bcadb;p=civicrm-core.git

CRM-19585, created unction to calculate financial item amount when contribution is updated
Added test

----------------------------------------
* CRM-19585: Sales tax issue
  https://issues.civicrm.org/jira/browse/CRM-19585
---

diff --git a/CRM/Contribute/BAO/Contribution.php b/CRM/Contribute/BAO/Contribution.php
index d1cbe5b895..bb4e453faf 100644
--- a/CRM/Contribute/BAO/Contribution.php
+++ b/CRM/Contribute/BAO/Contribution.php
@@ -5336,4 +5336,35 @@ LEFT JOIN  civicrm_contribution on (civicrm_contribution.contact_id = civicrm_co
     $trxnParams['from_financial_account_id'] = $params['to_financial_account_id'];
   }
 
+  /**
+   * Calculate financial item amount when contribution is updated.
+   *
+   * @param array $params
+   *   contribution params
+   * @param array $amountParams
+   *
+   * @param string $context
+   *
+   * @return float
+   */
+  public static function calculateFinancialItemAmount($params, $amountParams, $context) {
+    if (!empty($params['is_quick_config'])) {
+      $amount = $amountParams['item_amount'];
+      if (!$amount) {
+        $amount = $params['total_amount'];
+        if ($context === NULL) {
+          $amount -= CRM_Utils_Array::value('tax_amount', $params, 0);
+        }
+      }
+    }
+    else {
+      $amount = $amountParams['line_total'];
+      if ($context == 'changedAmount') {
+        $amount -= $amountParams['previous_line_total'];
+      }
+      $amount *= $amountParams['diff'];
+    }
+    return $amount;
+  }
+
 }
diff --git a/tests/phpunit/CRM/Contribute/BAO/ContributionTest.php b/tests/phpunit/CRM/Contribute/BAO/ContributionTest.php
index 532cb98af6..b03ab25496 100644
--- a/tests/phpunit/CRM/Contribute/BAO/ContributionTest.php
+++ b/tests/phpunit/CRM/Contribute/BAO/ContributionTest.php
@@ -937,4 +937,72 @@ WHERE eft.entity_id = %1 AND ft.to_financial_account_id <> %2";
     $this->assertFalse($allowUpdate);
   }
 
+  /**
+   * Test calculateFinancialItemAmount().
+   */
+  public function testcalculateFinancialItemAmount() {
+    $testParams = array(
+      array(
+        'params' => array(),
+        'amountParams' => array(
+          'line_total' => 100,
+          'previous_line_total' => 300,
+          'diff' => 1,
+        ),
+        'context' => 'changedAmount',
+        'expectedItemAmount' => -200,
+      ),
+      array(
+        'params' => array(),
+        'amountParams' => array(
+          'line_total' => 100,
+          'previous_line_total' => 100,
+          'diff' => -1,
+        ),
+        'context' => 'changePaymentInstrument',
+        'expectedItemAmount' => -100,
+      ),
+      array(
+        'params' => array(
+          'is_quick_config' => TRUE,
+          'total_amount' => 110,
+          'tax_amount' => 10,
+        ),
+        'amountParams' => array(
+          'item_amount' => 100,
+        ),
+        'context' => 'changedAmount',
+        'expectedItemAmount' => 100,
+      ),
+      array(
+        'params' => array(
+          'is_quick_config' => TRUE,
+          'total_amount' => 110,
+          'tax_amount' => 10,
+        ),
+        'amountParams' => array(
+          'item_amount' => NULL,
+        ),
+        'context' => 'changedAmount',
+        'expectedItemAmount' => 110,
+      ),
+      array(
+        'params' => array(
+          'is_quick_config' => TRUE,
+          'total_amount' => 110,
+          'tax_amount' => 10,
+        ),
+        'amountParams' => array(
+          'item_amount' => NULL,
+        ),
+        'context' => NULL,
+        'expectedItemAmount' => 100,
+      ),
+    );
+    foreach ($testParams as $params) {
+      $itemAmount = CRM_Contribute_BAO_Contribution::calculateFinancialItemAmount($params['params'], $params['amountParams'], $params['context']);
+      $this->assertEquals($itemAmount, $params['expectedItemAmount'], 'Invalid Financial Item amount.');
+    }
+  }
+
 }