allow to search for balance for a account ID via transaction class, added template changes

public/include/classes/transaction.class.php

@@ -7,12 +7,12 @@ if (!defined('SECURITY'))
 class Transaction {
   private $sError = '';
   private $table = 'transactions';
-  // This defines each block
+  private $tableBlocks = 'blocks';
-  public $account_id;
 
-  public function __construct($debug, $mysqli) {
+  public function __construct($debug, $mysqli, $config) {
     $this->debug = $debug;
     $this->mysqli = $mysqli;
+    $this->config = $config;
     $this->debug->append("Instantiated Ledger class", 2);
   }
 
@@ -90,6 +90,36 @@ class Transaction {
     }
     return true;
   }
+
+  public function getBalance($account_id) {
+    $stmt = $this->mysqli->prepare("
+      SELECT IFNULL(c.credit - d.debit, 0) AS balance
+      FROM (
+        SELECT account_id, sum(t.amount) AS credit
+        FROM $this->table AS t
+        LEFT JOIN $this->tableBlocks AS b ON t.block_id = b.id
+        WHERE type = 'Credit'
+        AND b.confirmations > ?
+        AND account_id = ? ) AS c
+      LEFT JOIN (
+        SELECT account_id, sum(amount) AS debit
+        FROM $this->table
+        WHERE type IN ('Debit_MP','Debit_AP')
+        AND account_id = ? ) AS d
+      ON c.account_id = d.account_id
+      ");
+    if ($this->checkStmt($stmt)) {
+      $stmt->bind_param("iii", $this->config['confirmations'], $account_id, $account_id);
+      if (!$stmt->execute()) {
+        $this->debug->append("Unable to execute statement: " . $stmt->error);
+        $this->setErrorMessage("Fetching balance failed");
+      }
+      $result = $stmt->get_result();
+      $stmt->close();
+      return $result->fetch_object()->balance;
+    }
+    return false;
+  }
 }
 
-$transaction = new Transaction($debug, $mysqli);
+$transaction = new Transaction($debug, $mysqli, $config);

public/include/config/global.inc.dist.php

@@ -23,6 +23,7 @@ define('SALT', 'LJKEHFuhgu7%&¤Hg783tr7gf¤%¤fyegfredfoGHYFGYe(%/(&%6');
 $config = array(
   'difficulty' => '31',         // Target difficulty for this pool
   'reward' => '50',             // Reward for finding blocks
+  'confirmations' => '120',     // Confirmations per block found to credit transactions
   'wallet' => array(
     'type' => 'http',            // http or https are supported
     'host' => 'localhost:9332',

public/include/smarty_globals.inc.php

@@ -6,6 +6,7 @@ if (!defined('SECURITY'))
 
 // Globally available variables
 $debug->append('Global smarty variables', 3);
+
 $aGlobal = array(
   'userdata' => $_SESSION['USERDATA']['id'] ? $user->getUserData($_SESSION['USERDATA']['id']) : array(),
   'slogan' => $settings->getValue('slogan'),
@@ -17,6 +18,10 @@ $aGlobal = array(
   'statstime' => $settings->getValue('statstime'),
   'motd' => $settings->getValue('motd')
 );
+// Append additional user information not from user table
+$aGlobal['userdata']['balance'] = $transaction->getBalance($_SESSION['USERDATA']['id']);
+
+// Make it available in Smarty
 $smarty->assign('PATH', 'site_assets/' . THEME);
 $smarty->assign('GLOBAL', $aGlobal);
 ?>

public/index.php

@@ -73,13 +73,13 @@ if (!empty($action)) {
 $smarty->assign("PAGE", $page);
 $smarty->assign("ACTION", $action);
 
+// Now with all loaded and processed, setup some globals we need for smarty templates
+require_once(INCLUDE_DIR . '/smarty_globals.inc.php');
+
 // Debguger 
 $debug->append("Loading debug information into template", 4);
 $smarty->assign('DebuggerInfo', $debug->getDebugInfo());
 
-// Now with all loaded and processed, setup some globals we need for smarty templates
-require_once(INCLUDE_DIR . '/smarty_globals.inc.php');
-
 // Display our page
 if (!@$supress_master)
   $smarty->display("master.tpl", md5(serialize($_REQUEST)));