added page and function

CRM/Grant/BAO/GrantBudget.php

@@ -3,7 +3,54 @@
 class CRM_Grant_BAO_GrantBudget extends CRM_Grant_DAO_GrantBudget {
 
   public static function getFiscalyear() {
-    return [2018=>2018];
+    return [2018 => 2018];
+  }
+
+  public static function getGrantBudget($params) {
+    $fiscalYear = $params['fiscal_year'];
+    if (empty($fiscalYear)) {
+      $fiscalYear = date('Y');
+    }
+    $grantBudget = [];
+    $paidStatusID = 4;
+    // TODO fix hardcoded values
+    $qParams = [
+      1 => [$fiscalYear, 'String'],
+      2 => ['2018-01-01', 'String'],
+      3 => ['2018-12-31', 'String'],
+      4 => [$paidStatusID, 'Integer'],
+    ];
+
+    $where = '';
+    if (!empty($params['financial_type_id'])) {
+      $where = 'WHERE cft.id = %5';
+      $qParams[5] = [$params['financial_type_id'], 'Integer'];
+    }
+    $grantBudgetTableName = CRM_Grant_DAO_GrantBudget::getTableName();
+    $sql = "SELECT gs.id, cft.name, IFNULL(cgb.budget, 0) AS budget,
+        SUM(IFNULL(cg.amount_granted, 0)) as total_amount_granted
+      FROM civicrm_financial_type cft
+        INNER JOIN " . GRANT_SCHOLARSHIP_CUSTOM_TABLE_NAME . " gs
+          ON gs.entity_id = cft.id AND gs." . GRANT_SCHOLARSHIP_CUSTOM_FIELD . " = 1
+        LEFT JOIN " . $grantBudgetTableName . " cgb
+          ON cgb.financial_type_id = cft.id AND cgb.fiscal_year = %1
+        LEFT JOIN civicrm_grant cg
+          ON cg.financial_type_id = cft.id AND cg.status_id IN (%4)
+          AND cg.decision_date >= %2 AND cg.decision_date <= %3
+      $where
+      GROUP BY cft.id
+      ORDER BY cft.name";
+    $result = CRM_Core_DAO::executeQuery($sql, $qParams);
+
+    while ($result->fetch()) {
+      $grantBudget[$result->id] = [
+        'name' => $result->name,
+        'budget' => $result->budget,
+        'total_amount_granted' => $result->total_amount_granted,
+        'balance_amount' => ($result->budget - $result->total_amount_granted),
+      ];
+    }
+    return $grantBudget;
   }
 
 }