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changeset 22:2748dac8195b

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new Patch.simplify Ignore-this: b90097ef6566dccc0040eefbf5c6cca0
author drewp@bigasterisk.com
date Wed, 17 Apr 2019 09:24:50 +0000
parents ad6b5804deb1
children 92dea84af97a
files rdfdb/patch.py
diffstat 1 files changed, 8 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/rdfdb/patch.py	Wed Apr 17 09:23:34 2019 +0000
+++ b/rdfdb/patch.py	Wed Apr 17 09:24:50 2019 +0000
@@ -128,6 +128,14 @@
         d.update(extraAttrs)
         return json.dumps(d)
 
+    def simplify(self):
+        adds = set(self.addQuads)
+        dels = set(self.delQuads)
+        both = adds.intersection(dels)
+        if not both:
+            return self
+        return Patch(addQuads=adds - both, delQuads=dels - both)
+        
     def concat(self, more):
         """
         new Patch with the result of applying this patch and the