Add grid filter type for BigInteger columns

so we can filter by larger values

tailbone/grids/core.py

@@ -689,6 +689,8 @@ class Grid(object):
                 factory = gridfilters.AlchemyStringFilter
             elif isinstance(column.type, sa.Numeric):
                 factory = gridfilters.AlchemyNumericFilter
+            elif isinstance(column.type, sa.BigInteger):
+                factory = gridfilters.AlchemyBigIntegerFilter
             elif isinstance(column.type, sa.Integer):
                 factory = gridfilters.AlchemyIntegerFilter
             elif isinstance(column.type, sa.Boolean):

tailbone/grids/filters.py

@@ -659,6 +659,7 @@ class AlchemyIntegerFilter(AlchemyNumericFilter):
     """
     Integer filter for SQLAlchemy.
     """
+    bigint = False
 
     def value_invalid(self, value):
         if value:
@@ -666,9 +667,10 @@ class AlchemyIntegerFilter(AlchemyNumericFilter):
                 return True
             if not value.isdigit():
                 return True
-            # TODO: this one is to avoid DataError from PG, but perhaps that
-            # isn't a good enough reason to make this global logic?
-            if int(value) > 2147483647:
+            # normal Integer columns have a max value, beyond which PG
+            # will throw an error if we try to query for larger values
+            # TODO: this seems hacky, how to better handle it?
+            if not self.bigint and int(value) > 2147483647:
                 return True
         return False
 
@@ -678,6 +680,13 @@ class AlchemyIntegerFilter(AlchemyNumericFilter):
         return int(value)
 
 
+class AlchemyBigIntegerFilter(AlchemyIntegerFilter):
+    """
+    BigInteger filter for SQLAlchemy.
+    """
+    bigint = True
+
+
 class AlchemyBooleanFilter(AlchemyGridFilter):
     """
     Boolean filter for SQLAlchemy.