From 5468031600a7c408a3004dfcbd3386b3736a2f9f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Victor=20Frans=20Pondaco=20Winandy?=
 <jvfpw18@inf.ufpr.br>
Date: Thu, 14 May 2020 10:55:55 -0300
Subject: [PATCH] Fix insertion for tables without primary_key

---
 database/database_table.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/database/database_table.py b/database/database_table.py
index db3555f..8025b13 100644
--- a/database/database_table.py
+++ b/database/database_table.py
@@ -201,11 +201,13 @@ class DatabaseTable(Table):
             bind = self.metadata.bind
 
         pks = get_primary_keys(self)
-        primary_keys = (ttable.columns.get(pk.name) for pk in pks)
 
-        new_pk = PrimaryKeyConstraint(*primary_keys)
-        query = AddConstraint(new_pk)
-        bind.execute(query)
+        if len(pks) > 0:
+            primary_keys = (ttable.columns.get(pk.name) for pk in pks)
+
+            new_pk = PrimaryKeyConstraint(*primary_keys)
+            query = AddConstraint(new_pk)
+            bind.execute(query)
 
     def populate_temporary(self, ttable, in_file, header, year, delimiters=[';', '\\n', '"'],
                            null='', offset=2, bind=None):
-- 
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