From 14f67746bf0d71ee6cfeb73bd0710ed9543ff931 Mon Sep 17 00:00:00 2001
From: Lance Edgar <lance@edbob.org>
Date: Wed, 18 Oct 2017 12:54:57 -0700
Subject: [PATCH] Allow passing `None` to `Grid.set_joiner()`

doing so will remove the joiner
---
 tailbone/grids/core.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tailbone/grids/core.py b/tailbone/grids/core.py
index 63ea83bd..4f79587b 100644
--- a/tailbone/grids/core.py
+++ b/tailbone/grids/core.py
@@ -115,7 +115,10 @@ class Grid(object):
             self.columns.remove(key)
 
     def set_joiner(self, key, joiner):
-        self.joiners[key] = joiner
+        if joiner is None:
+            self.joiners.pop(key, None)
+        else:
+            self.joiners[key] = joiner
 
     def set_sorter(self, key, *args, **kwargs):
         self.sorters[key] = self.make_sorter(*args, **kwargs)