fix(datastore): return null for list field in nested model (#843)

HuiSF · web-flow · commit a78e82811b69 · 2021-08-27T11:30:56.000-07:00
diff --git a/packages/amplify_datastore/ios/Classes/types/model/FlutterSerializedModel.swift b/packages/amplify_datastore/ios/Classes/types/model/FlutterSerializedModel.swift
@@ -176,7 +176,7 @@ struct FlutterSerializedModel: Model, JSONValueHolder {
             if case .object(let deserializedValue) = value {
                 // If a field that has many models
                 if (deserializedValue["associatedField"] != nil && deserializedValue["associatedId"] != nil) {
-                    result[key] = Array<Any>();
+                    result[key] = nil
                 }
                 // If a field that has one or belongs to a model
                 else if case .string(let modelId) = deserializedValue["id"],

Original file line number	Diff line number	Diff line change
`@@ -176,7 +176,7 @@ struct FlutterSerializedModel: Model, JSONValueHolder {`
`176`	`176`	`if case .object(let deserializedValue) = value {`
`177`	`177`	`// If a field that has many models`
`178`	`178`	`if (deserializedValue["associatedField"] != nil && deserializedValue["associatedId"] != nil) {`
`179`		`- result[key] = Array<Any>();`
	`179`	`+ result[key] = nil`
`180`	`180`	`}`
`181`	`181`	`// If a field that has one or belongs to a model`
`182`	`182`	`else if case .string(let modelId) = deserializedValue["id"],`