Inventory Adjustment: removed movement type, cleanups.

[fa-stable.git] / includes / db / references_db.inc

diff --git a/includes/db/references_db.inc b/includes/db/references_db.inc
index 71314463339be1294347e99fa546e718c371e5e4..4933d8dbad0174814707b4bb792c0b8ce77a2013 100644 (file)
--- a/includes/db/references_db.inc
+++ b/includes/db/references_db.inc
@@ -20,23 +20,12 @@ function get_reference($type, $id)
     return $row['reference'];
 }
 
-//--------------------------------------------------------------------------------------------------
-
-function add_reference($type, $id, $reference)
-{
-       $sql = "INSERT INTO ".TB_PREF."refs (type, id, reference)
-               VALUES (".db_escape($type).", ".db_escape($id).", "
-                       . db_escape(trim($reference)) . ")";
-
-       db_query($sql, "could not add reference entry");
-}
-
 //--------------------------------------------------------------------------------------------------
  
 function update_reference($type, $id, $reference)
 {
-    $sql = "UPDATE ".TB_PREF."refs SET reference=".db_escape($reference)
-                       ." WHERE type=".db_escape($type)." AND id=".db_escape($id);
+    $sql = "REPLACE ".TB_PREF."refs SET reference=".db_escape($reference)
+                       .", type=".db_escape($type).", id=".db_escape($id);
     db_query($sql, "could not update reference entry");
 }
 
@@ -44,7 +33,7 @@ function update_reference($type, $id, $reference)
 
 function delete_reference($type, $id)
 {
-       $sql = "DELETE FROM ".TB_PREF."refs WHERE type=$type AND id=".db_escape($id);
+       $sql = "DELETE FROM ".TB_PREF."refs WHERE type=".db_escape($type)." AND id=".db_escape($id);
 
        return db_query($sql, "could not delete from reference table");
 }
@@ -87,4 +76,47 @@ function get_next_reference($type)
     return $row[0];
 }
 
-?>
\ No newline at end of file
+//----------------------------------------------------------------------------
+//
+//     Check if reference was not used so far (for other transaction than $trans_no)
+//
+function is_new_reference($ref, $type, $trans_no=0)
+{
+       $db_info = get_systype_db_info($type);
+       $db_name = $db_info[0];
+       $db_type = $db_info[1];
+       $db_trans = $db_info[2];
+       $db_ref = $db_info[3];
+       
+       $ref = db_escape(trim($ref));
+       $type = db_escape($type);
+       
+       if ($db_ref == null) { // journal or bank trans store references in refs table
+               $db_name = TB_PREF."refs";
+               $db_type = 'type';
+               $db_trans = 'id';
+               $db_ref = 'reference';
+       }
+
+       if ($db_type != null) {
+               $sql = "SELECT $db_ref FROM $db_name tbl
+                       LEFT JOIN ".TB_PREF."voided v ON 
+                               tbl.$db_type=v.type AND tbl.$db_trans=v.id
+                       WHERE $db_ref=$ref AND ISNULL(v.id)
+                               AND tbl.$db_type=$type";
+       } else {
+               $sql = "SELECT $db_ref ref FROM $db_name tbl
+                       LEFT JOIN ".TB_PREF."voided v ON 
+                               v.type=$type AND tbl.$db_trans=v.id
+                       WHERE $db_ref=$ref AND ISNULL(v.id)";
+       }
+       if ($trans_no)
+                       $sql .= " AND tbl.`$db_trans` != ".db_escape($trans_no);
+
+       $result = db_query($sql, "could not test for unique reference");
+
+       return (db_num_rows($result) == 0);
+
+}
+
+