Improve data file handling for file batches.

Leverages a FormAlchemy "extension" of sorts.

tailbone/views/vendors/catalogs.py

@@ -114,10 +114,9 @@ class VendorCatalogCrud(FileBatchCrud):
         fs.configure(
             include=[
                 fs.vendor,
-                fs.data_file.label("Catalog File"),
+                fs.filename.label("Catalog File"),
                 fs.parser_key.label("File Type"),
                 fs.effective,
-                fs.filename,
                 fs.created,
                 fs.created_by,
                 fs.executed,

tailbone/views/vendors/invoices.py

@@ -114,9 +114,8 @@ class VendorInvoiceCrud(FileBatchCrud):
         fs.configure(
             include=[
                 fs.vendor.readonly(),
-                fs.data_file.label("Invoice File"),
+                fs.filename.label("Invoice File"),
                 fs.parser_key.label("File Type"),
-                fs.filename,
                 fs.purchase_order_number.label(self.handler.po_number_title),
                 fs.invoice_date.readonly(),
                 fs.created,