fix(BUX-000): isNilCondition to isEmptyCondition with unit tests

engine/datastore/where_builder.go

@@ -103,7 +103,7 @@ func (builder *whereBuilder) applyJSONArrayContains(tx customWhereInterface, key
 
 // applyJSONCondition will apply condition on JSON Object field - client.GetObjectFields()
 func (builder *whereBuilder) applyJSONCondition(tx customWhereInterface, key string, condition interface{}) {
-	if isNilCondition(condition) {
+	if isEmptyCondition(condition) {
 		return
 	}
 
@@ -228,14 +228,17 @@ func convertToDict(object interface{}) map[string]interface{} {
 	return converted
 }
 
-func isNilCondition(condition interface{}) bool {
+func isEmptyCondition(condition interface{}) bool {
 	val := reflect.ValueOf(condition)
-	if val.IsNil() {
-		return true
+	for ; val.Kind() == reflect.Ptr; val = val.Elem() {
+		if val.IsNil() {
+			return true
+		}
 	}
-	if val.Kind() == reflect.Ptr {
-		val = val.Elem()
-		return val.IsNil()
+	kind := val.Kind()
+	if kind == reflect.Map || kind == reflect.Slice {
+		return val.Len() == 0
 	}
+
 	return false
 }

engine/datastore/where_test.go

@@ -572,3 +572,64 @@ func Test_sqlInjectionSafety(t *testing.T) {
 		assert.Contains(t, raw, `'{"1=1; DELETE FROM users":"field_value"}'`)
 	})
 }
+
+func Test_isEmptyCondition(t *testing.T) {
+	t.Parallel()
+
+	t.Run("nil ptr to map", func(t *testing.T) {
+		var condition *map[string]interface{}
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not-nil ptr to nil-map", func(t *testing.T) {
+		var theMap map[string]interface{}
+		condition := &theMap
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not-nil ptr to empty map", func(t *testing.T) {
+		theMap := map[string]interface{}{}
+		condition := &theMap
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not-nil ptr to not-empty map", func(t *testing.T) {
+		theMap := map[string]interface{}{
+			"key": 123,
+		}
+		condition := &theMap
+		assert.False(t, isEmptyCondition(condition))
+	})
+
+	t.Run("nil ptr to int", func(t *testing.T) {
+		var condition *int
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not nil ptr to int", func(t *testing.T) {
+		theInt := 123
+		condition := &theInt
+		assert.False(t, isEmptyCondition(condition))
+	})
+
+	t.Run("just int", func(t *testing.T) {
+		assert.False(t, isEmptyCondition(123))
+	})
+
+	t.Run("nil ptr to slice", func(t *testing.T) {
+		var condition *[]interface{} = nil
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not-nil ptr to nil-slice", func(t *testing.T) {
+		var theSlice []interface{} = nil
+		var condition *[]interface{} = &theSlice
+		assert.True(t, isEmptyCondition(condition))
+	})
+
+	t.Run("not-nil ptr to empty slice", func(t *testing.T) {
+		theSlice := []interface{}{}
+		condition := &theSlice
+		assert.True(t, isEmptyCondition(condition))
+	})
+}