由于我的突变，无法在Hasura/GraphQL中插入数组关系

Question

我正在使用Apollo iOS客户端连接到我们的Hasura/postgress docker环境。

我正在尝试创建一个对象并填充它的关系数组。然而，我在switch result语句中收到一条错误消息，告诉我：

variable subtasks of type [SubtaskReport_insert_input]! is used in position expecting SubtaskReport_arr_rel_insert_input

我已经尝试将类型从SubtaskReport_insert_input更改为SubtaskReport_arr_rel_insert_input，但代码生成器没有生成SubtaskReport_arr_rel_insert_input类型。

如何创建这个数组以便成功执行突变？

我的突变graphql如下：

mutation addTaskReport($category: String!, $duration: Int!, $interval: Int!, $ppgs: String!, $status: String!, $taskDescription: String!, $task_id: uuid!, $zone_name: String!, $subtasks: [SubtaskReport_insert_input]!) {
insert_TaskReport(
objects: {
category: $category,
duration: $duration,
interval: $interval,
ppgs: $ppgs,
status: $status,
taskDescription: $taskDescription,
task_id: $task_id,
zone_name: $zone_name
subtasks: $subtasks
}) {
returning {
id
}
}
}

我用来构建和发送突变的iOS代码：

func addTaskReport(for task: Task) {
guard
let category = task.category,
let duration = task.duration,
let interval = task.interval,
let ppgsSet = task.ppgs,
let zoneName = task.zoneOfTask?.name,
let taskDescription = task.summary
else {
return
}
let taskReportId = UUID().uuidString.lowercased()
var subtaskReports = [SubtaskReport_arr_rel_insert_input]()
for subtask in task.subtasks as! Set<Subtask> {
let subtaskReportId = UUID().uuidString.lowercased()
let subtaskReport = SubtaskReport_insert_input(id: subtaskReportId, status: false, taskReportId: taskReportId, title: subtask.title)
subtaskReports.append(subtaskReport)
}
let ppgs = ppgsSet as Set<PersonalProtectionGear>
let ppgsStringArray = ppgs.compactMap({$0.name})
let ppgsString = Array(ppgsStringArray).joined(separator:" ")
self.apollo.perform(mutation: AddTaskReportMutation(
category: category,
duration: Int(duration),
interval: Int(interval),
ppgs: ppgsString,
status: "open",
taskDescription: taskDescription,
task_id: taskReportId,
zone_name: zoneName,
subtasks: subtaskReports)
) { (result) in
switch result {
case .success(let graphQLResult):
print("Simon Says graphQLResult (graphQLResult)")//TODO: Remove
break
case .failure(let error):
print("Simon Says error (error)")//TODO: Remove
break
}
print("Simon Says BreakHere")//TODO: Remove
}
}

Answer 1

在相关资源(subtasks(前面添加data键应该可以！此外，建议：也使用[SubtaskReport_insert_input!]!。这是*_array_rel_input的预期类型。

更新查询如下：

+   mutation addTaskReport($category: String!, $duration: Int!, $interval: Int!, $ppgs: String!, $status: String!, $taskDescription: String!, $task_id: uuid!, $zone_name: String!, $subtasks: [SubtaskReport_insert_input!]!) {
insert_TaskReport(
objects: {
category: $category,
duration: $duration,
interval: $interval,
ppgs: $ppgs,
status: $status,
taskDescription: $taskDescription,
task_id: $task_id,
zone_name: $zone_name
+         subtasks: {
+          data: $subtasks
+         }
}) {
returning {
id
}
}
}

相关文件：https://hasura.io/docs/1.0/graphql/manual/mutations/insert.html#insert-通过关系的对象及其相关对象

我绝对建议使用GraphiQL接口来调试查询(相对于您的代码(，因为它提供了GraphiQL类型的建议和检查，可以通过访问http://localhost:9695/api-explorer或http://localhost:8080/api-探险家。