Don't create invoice when Duplicate invoice dialog is cancelled

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23398 57a11ea4-9604-0410-9ed3-97b8803252fd

src/business/business-gnome/dialog-invoice.c

@@ -463,8 +463,10 @@ gnc_invoice_window_destroy_cb (GtkWidget *widget, gpointer data)
 
     gnc_suspend_gui_refresh ();
 
-    if (iw->dialog_type == NEW_INVOICE && invoice != NULL)
+    if ((iw->dialog_type == NEW_INVOICE || iw->dialog_type == DUP_INVOICE)
+         && invoice != NULL)
     {
+        gncInvoiceRemoveEntries (invoice);
         gncInvoiceBeginEdit (invoice);
         gncInvoiceDestroy (invoice);
         iw->invoice_guid = *guid_null ();

src/engine/gncInvoice.c

@@ -691,6 +691,43 @@ void gncInvoiceSortEntries (GncInvoice *invoice)
     gncInvoiceCommitEdit (invoice);
 }
 
+void gncInvoiceRemoveEntries (GncInvoice *invoice)
+{
+    GList *node;
+
+    if (!invoice) return;
+
+    for (node = invoice->entries; node; node = node->next)
+    {
+        GncEntry *entry = node->data;
+
+        switch (gncInvoiceGetOwnerType (invoice))
+        {
+        case GNC_OWNER_VENDOR:
+        case GNC_OWNER_EMPLOYEE:
+            // this is a vendor bill, or an expense voucher
+            gncBillRemoveEntry (invoice, entry);
+            break;
+        case GNC_OWNER_CUSTOMER:
+        default:
+            // this is an invoice
+            gncInvoiceRemoveEntry (invoice, entry);
+            break;
+        }
+
+        /* If the entry is no longer referenced by any document,
+         * remove it.
+         */
+        if (!(gncEntryGetInvoice (entry) ||
+              gncEntryGetBill (entry) ||
+              gncEntryGetOrder (entry)))
+        {
+            gncEntryBeginEdit (entry);
+            gncEntryDestroy (entry);
+        }
+    }
+}
+
 /* ================================================================== */
 /* Get Functions */
 

src/engine/gncInvoice.h

@@ -127,6 +127,11 @@ void gncBillRemoveEntry (GncInvoice *bill, GncEntry *entry);
 */
 void gncInvoiceSortEntries (GncInvoice *invoice);
 
+/** Remove all entries from an invoice. To be called before
+ *  destroying an invoice.
+*/
+void gncInvoiceRemoveEntries (GncInvoice *invoice);
+
 /** @name Get Functions
  @{ */
 const char * gncInvoiceGetID (const GncInvoice *invoice);