X-Git-Url: https://delta.frontaccounting.com/gitweb/?a=blobdiff_plain;f=includes%2Freferences.inc;h=671db9346e2a3b4267a71041ed958d798863a301;hb=d2a8ca44be9bac1e147ae2a9de0db693ce0fcb08;hp=d4b26f962c0a28f41dc7b1f4a4de3705370acded;hpb=a7b452fd6eb392f916992c9858caf35eaa6477bb;p=fa-stable.git

diff --git a/includes/references.inc b/includes/references.inc
index d4b26f96..671db934 100644
--- a/includes/references.inc
+++ b/includes/references.inc
@@ -34,8 +34,10 @@ class references
 	function update($type, $id, $reference) 
 	{
 	    update_reference($type, $id, $reference);
+		if ($reference != 'auto')
+			$this->save_last($reference, $type);
 	}
-	
+	// check if reference is used for any non voided transaction (used for ST_JOURNALENTRY type)
 	function exists($type, $reference) 
 	{
 		return (find_reference($type, $reference) != null);
@@ -51,6 +53,17 @@ class references
 	{
 		return get_next_reference($type);
 	}
+	//
+	//	Restore previous reference if voided trans ref was the last one.
+	//
+	function restore_last($type, $id) 
+	{
+		$reference = $this->get($type, $id);
+		$last = $this->increment($this->get_next($type), true); //decrement
+		if ($reference==$last) {
+			save_next_reference($type, $last);
+		}
+	}
 	
 	//------------------------------------
 
@@ -58,25 +71,30 @@ class references
 	{
 		return strlen(trim($reference)) > 0;
 	}
-	
-	function increment($reference) 
+	//
+	//	Increments (or decrements if $back==true) reference template
+	//
+	function increment($reference, $back=false) 
 	{
 		// New method done by Pete. So f.i. WA036 will increment to WA037 and so on.
-       	// If $reference is trailed by digits, and digits only,
-        // extract them and add 1, then put the alpha prefix back on
+       	// If $reference contains at least one group of digits,
+        // extract first didgits group and add 1, then put all together.
         // NB. preg_match returns 1 if the regex matches completely 
         // also $result[0] holds entire string, 1 the first captured, 2 the 2nd etc.
-        if (preg_match('/^(.*?)(\d+)$/', $reference, $result) == 1) 
+        //
+        if (preg_match('/^(\D*?)(\d+)(.*)/', $reference, $result) == 1) 
         {
-            $dig_count = strlen($result[2]); // How many digits? eg. 0003 = 4
-            $fmt = '%0' . $dig_count . 'd'; // Make a format string - leading zeroes
-            $nextval =  $result[1] . sprintf($fmt, intval($result[2] + 1)); // Add one on, and put prefix back on
-            return $nextval;
+			list($all, $prefix, $number, $postfix) = $result;
+			$dig_count = strlen($number); // How many digits? eg. 0003 = 4
+			$fmt = '%0' . $dig_count . 'd'; // Make a format string - leading zeroes
+			$val = intval($number + ($back ? ($number<1 ? 0 : -1) : 1));
+			$nextval =  sprintf($fmt, $val); // Add one on, and put prefix back on
+
+			return $prefix.$nextval.$postfix;
         }
         else 
             return $reference;
 	}
-	
 	//------------------------------------
 }