X-Git-Url: https://delta.frontaccounting.com/gitweb/?a=blobdiff_plain;f=includes%2Fdb%2Fsql_functions.inc;h=66a781d25d868c21286076411c8f559df3394ff4;hb=f2b14f25ac2539890c9ce6fc490c8be80a935b9c;hp=febc3af824e4f1246be0f9659a7a6aced26616ab;hpb=ad0fdc78ec8ae2b67ef1b3a6d4f3393dba242310;p=fa-stable.git

diff --git a/includes/db/sql_functions.inc b/includes/db/sql_functions.inc
index febc3af8..66a781d2 100644
--- a/includes/db/sql_functions.inc
+++ b/includes/db/sql_functions.inc
@@ -15,10 +15,11 @@
 //-------------------------------------------------------------------
 // Multilevel transaction control.
 //
+$transaction_level = 0;
 
 function begin_transaction()
 {
-	global $transaction_level; // set in set_global_connection()
+	global $transaction_level;
 
 	if (!$transaction_level) {
 		db_query("BEGIN", "could not start a transaction");
@@ -48,6 +49,7 @@ function cancel_transaction()
 	if ($transaction_level) {
 		db_query("ROLLBACK", "could not cancel a transaction");	
 	}
+	$transaction_level = 0;
 }
 
 //-----------------------------------------------------------------------------
@@ -59,4 +61,21 @@ function update_record_status($id, $status, $table, $key) {
 		
   	db_query($sql, "Can't update record status");
 }
-?>
+//-----------------------------------------------------------------------------
+//
+//	Helper for sql subquery returning running totals from delta tables like stock_moves or bank_trans
+//
+//	$table - table name with optional WHERE clause
+//  $column - delta column
+//	$index  - comma delimited list of columns for total grouping and order
+//  Returns running totals with respective index column
+//
+function running_total_sql($table, $column, $index)
+{
+
+	return "SELECT daily.$index, daily.$column, (@total:=@total+daily.$column) total 
+		FROM
+			(SELECT $index, sum($column) $column FROM $table GROUP BY $index ORDER BY $index) daily,
+			(SELECT @total:=0) total_var";
+}
+