Merge pull request #41 from fogfish/fix-encode

fix encode of empty objects
fogfish · Sep 25, 2021 · 4832827 · 4832827
2 parents d9195bd + da8f3d0
commit 4832827
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Showing 2 changed files with 17 additions and 0 deletions.
diff --git a/id.go b/id.go
@@ -96,6 +96,9 @@ func Encode(av *dynamodb.AttributeValue, id curie.IRI, val interface{}) error {
 		return err
 	}
 
+	if gen.M == nil {
+		gen.M = make(map[string]*dynamodb.AttributeValue)
+	}
 	gen.M["id"] = uid
 
 	*av = *gen

diff --git a/id_test.go b/id_test.go
@@ -42,3 +42,17 @@ func TestEncodeDecode(t *testing.T) {
 		IfTrue(curie.Eq(core.ID, some.ID)).
 		IfTrue(*core.Link == *some.Link)
 }
+
+func TestEncodeDecodeKeyOnly(t *testing.T) {
+	core := MyType{ID: curie.New("test:a/b")}
+
+	av, err := dynamodbattribute.Marshal(core)
+	it.Ok(t).IfNil(err)
+
+	var some MyType
+	err = dynamodbattribute.Unmarshal(av, &some)
+	it.Ok(t).IfNil(err)
+
+	it.Ok(t).
+		IfTrue(curie.Eq(core.ID, some.ID))
+}