79 lines
2.1 KiB
Swift
79 lines
2.1 KiB
Swift
//
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// Copyright Amazon.com Inc. or its affiliates.
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// All Rights Reserved.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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import Amplify
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import Foundation
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struct DynamicModel: Model, JSONValueHolder {
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public let id: String
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public let values: [String: JSONValue]
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public init(id: String = UUID().uuidString, map: [String: JSONValue]) {
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self.id = id
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self.values = map
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}
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public init(from decoder: Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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id = try container.decode(String.self, forKey: .id)
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let json = try JSONValue(from: decoder)
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if case .object(let jsonValues) = json {
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values = jsonValues
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} else {
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self.values = [:]
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}
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}
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public func encode(to encoder: Encoder) throws {
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var unkeyedContainer = encoder.unkeyedContainer()
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try unkeyedContainer.encode(values)
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}
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public func jsonValue(for key: String) -> Any?? {
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if key == "id" {
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return id
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}
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switch values[key] {
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case .some(.array(let deserializedValue)):
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return deserializedValue
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case .some(.boolean(let deserializedValue)):
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return deserializedValue
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case .some(.number(let deserializedValue)):
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return deserializedValue
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case .some(.object(let deserializedValue)):
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return deserializedValue
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case .some(.string(let deserializedValue)):
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return deserializedValue
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case .some(.null):
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return nil
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case .none:
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return nil
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}
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}
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public func jsonValue(for key: String, modelSchema: ModelSchema) -> Any?? {
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let field = modelSchema.field(withName: key)
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if case .int = field?.type,
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case .some(.number(let deserializedValue)) = values[key] {
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return Int(deserializedValue)
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}
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return jsonValue(for: key)
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}
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}
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extension DynamicModel {
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public enum CodingKeys: String, ModelKey {
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case id
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case values
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}
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public static let keys = CodingKeys.self
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}
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