From f0277a802a9b7a6fcb944e78ab90e32578bebae7 Mon Sep 17 00:00:00 2001
From: "Karl O. Pinc" <kop@karlpinc.com>
Date: Mon, 18 Jan 2021 14:51:20 -0600
Subject: [PATCH] Class to test for too few columns in param substition

---
 src/pgwui_core/core.py       | 16 ++++++++++++++++
 src/pgwui_core/exceptions.py |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/src/pgwui_core/core.py b/src/pgwui_core/core.py
index 6779c76..32c9510 100644
--- a/src/pgwui_core/core.py
+++ b/src/pgwui_core/core.py
@@ -980,6 +980,22 @@ class UploadData(DBData):
         return seq + ['' for i in range(len(seq) + 1, self.cols)]
 
 
+@attr.s
+class ParameterExecutor():
+    '''Execute a parameterized pscopg2 statement
+    '''
+    def param_execute(self, insert_stmt, udl):
+        try:
+            self.cur.execute(insert_stmt, udl.tuples)
+        except IndexError as exp:
+            raise core_ex.TooFewColsError(
+                udl.lineno,
+                'Line has too few columns',
+                'Fewer columns than column headings',
+                f'The IndexError from psycopg2 is: ({exp})',
+                data=udl.raw)
+
+
 class DataLineProcessor(object):
     '''
     A processor supplied uploaded lines (UploadDataLine instances)
diff --git a/src/pgwui_core/exceptions.py b/src/pgwui_core/exceptions.py
index 22cb2a6..25b564b 100644
--- a/src/pgwui_core/exceptions.py
+++ b/src/pgwui_core/exceptions.py
@@ -238,3 +238,8 @@ class DataLineError(UploadError):
 class TooManyColsError(DataLineError):
     def __init__(self, lineno, e, descr='', detail='', data=''):
         super(TooManyColsError, self).__init__(lineno, e, descr, detail, data)
+
+
+class TooFewColsError(DataLineError):
+    def __init__(self, lineno, e, descr='', detail='', data=''):
+        super().__init__(lineno, e, descr, detail, data)
-- 
2.34.1