Compatibilty with JSON tags (#143)

internal/encoding.go

@@ -173,10 +173,27 @@ func createRenameMap(rv reflect.Value) map[string]string {
 	for i := 0; i < rv.NumField(); i++ {
 		fieldType := rv.Type().Field(i)
 
+		renameTo := fieldType.Name
+		renameFrom := fieldType.Name
+
+		jsonTagStr, found := fieldType.Tag.Lookup("json")
+		if found {
+			name, _ := processStructTag(jsonTagStr)
+			if name != "" {
+				renameTo = name
+			}
+		}
+
 		tagStr, found := fieldType.Tag.Lookup("clover")
 		if found {
 			name, _ := processStructTag(tagStr)
-			renameMap[name] = fieldType.Name
+			if name != "" {
+				renameFrom = name
+			}
+		}
+
+		if renameFrom != renameTo {
+			renameMap[renameFrom] = renameTo
 		}
 	}
 	return renameMap

internal/encoding_test.go

@@ -26,6 +26,17 @@ type TestStruct struct {
 	Data        []byte                 `clover:",omitempty"`
 }
 
+type TestStruct2 struct {
+	BaseModel
+	IntField    int  `clover:"int_field,omitempty"`
+	UintField   uint `clover:"uint,omitempty" json:"uint_field"`
+	StringField string
+	FloatField  float32   `clover:",omitempty" json:"float_field"`
+	BoolField   bool      `clover:"bool_field,omitempty" json:"bool_field"`
+	TimeField   time.Time `clover:",omitempty"`
+	Data        []byte    `clover:",omitempty"`
+}
+
 func TestNormalize(t *testing.T) {
 	date := time.Date(2020, 01, 1, 0, 0, 0, 0, time.UTC)
 
@@ -132,3 +143,29 @@ func TestEncodeDecode(t *testing.T) {
 
 	require.Equal(t, m, norm)
 }
+
+func TestJsonTag(t *testing.T) {
+	date := time.Date(2020, 01, 1, 0, 0, 0, 0, time.UTC)
+
+	s := &TestStruct2{
+		TimeField:   date,
+		UintField:   100,
+		IntField:    200,
+		FloatField:  300,
+		StringField: "json",
+		BoolField:   true,
+	}
+
+	normalized, err := Normalize(s)
+	require.NoError(t, err)
+
+	require.IsType(t, normalized, map[string]interface{}{})
+	fields, _ := normalized.(map[string]interface{})
+	require.NotNil(t, fields)
+
+	var ns TestStruct2
+	err = Convert(fields, &ns)
+	require.NoError(t, err)
+
+	require.Equal(t, s, &ns)
+}