KeystoneJS 'resolveInput' 字段挂钩：从字段挂钩返回 'resolvedData' 会产生 GraphQL 转换错误

Question

我正在尝试修改 KeystoneJS 5 中特定字段的保存数据。resolveInput field hook 似乎是执行此操作的好方法。这是上面文档中给出的示例：

const resolveInput = ({
  operation,
  existingItem,
  originalInput,
  resolvedData,
  context,
  actions,
}) => {
  // Input resolution logic
  // Object returned is used in place of resolvedData
  return resolvedData;
};

The return of resolveInput can be a Promise or an Object. It should resolve to the same structure as the resolvedData. The result is passed to the next function in the execution order.

因此，我列表中字段的定义是

text: {
                type: Wysiwyg,
                hooks: {
                    async resolveInput({ originalInput,resolvedData }) {
                        console.log('resolvedData');
                        console.log(resolvedData);
                        return resolvedData;
                    }
                }

开始，我只是 returning 传入的 resolvedData 参数，根据文档，它是

resolvedData    Object  The data received by the GraphQL mutation plus defaults values

但是，我每次都得到以下错误

GraphQLError
Cast to string failed for value "{ text: '<p><img src="static/blop.jpg" alt="" width="580" height="388" /><img src="static/blop.jpg" alt="" /></p>' }" at path "text"

我不确定问题是什么或如何解决它 -- 我只是 returning 传入的相同数据。当我删除挂钩时，一切正常。

编辑

我相信答案是不 return 整个 resolvedData 对象，而是字段在你所在的那个对象上。因此，在下面的例子中，一个人会 return resolvedData.text （或 resolvedData.title）。我相信文档可以改进，因为看起来 return 是整个 resolvedData 对象。

Answer 1

你是对的：根据@keystonejs/keystone/lib/List/index.js 中的代码，应该 return 从 resolveInput 挂钩 field 对象而不是整个 resolvedData 对象：

    // Run the schema-level field hooks, passing in the results from the field
// type hooks
resolvedData = {
  ...resolvedData,
  ...(await this._mapToFields(
    this.fields.filter(field => field.hooks.resolveInput),
    field => field.hooks.resolveInput({ ...args, resolvedData })
  )),
};

returning 值分配给 field 元素 resolvedData 定义 resolveInput 挂钩的对象。

KeystoneJS 'resolveInput' 字段挂钩：从字段挂钩返回 'resolvedData' 会产生 GraphQL 转换错误

KeystoneJS 'resolveInput' field hook: returning 'resolvedData' from field hook produces GraphQL cast error

graphql

keystonejs

编辑