使用Apollo Client GraphQL查询和变异表单 [英] Querying and Mutating a Form with Apollo Client GraphQL
问题描述
整个GraphQL范式对我来说是新的,通常与React Redux一起使用.我的要求是:
The whole GraphQL paradigm is new to me, usually working with React Redux. My requirements are:
-
用户单击带有UID的行项目
User clicks a Row Item w/ UID
我们打开一个表单来编辑此数据(预先填充了先前保存的信息)
We open a form to edit this data (with previously saved information pre-populated)
我们然后编辑此数据并保存
We then edit this data and save
我认为(2)& (3)将由<Query><Mutation/><Query>
类型的结构处理,但是它不起作用,主要是因为在Query中设置状态将使textinputs控制输入...由<Query>
控制,并且我无法再对其进行编辑
I would think (2) & (3) would be handled by a <Query><Mutation/><Query>
type of structure but it doesn't work, mainly because setting state in the Query will make the textinputs controlled inputs... controlled by <Query>
, and I can no longer edit it.
除此之外,我已经读到GraphQL消除了对Redux等的需求?因此,我不愿意将查询保留在中间件中并推广到Redux.
Besides this, I've read that GraphQL removes the need for Redux, etc? So I'm reluctant to go around sticking this query in a middleware and propogating to Redux.
有什么想法吗?这必须是一个普遍的要求.其他人想出了什么?
Any thoughts? This must be a common requirement. What have others came up with?
推荐答案
您的数据应作为道具传递给将实际呈现表单的任何组件.然后,在该组件的构造函数中,根据道具设置初始状态.粗略的例子:
Your data should be passed down as a prop to whatever component will actually render the form. Inside that component's constructor, you then set the initial state based on the props. A rough example:
class FormComponent extends React.Component {
constructor () {
this.state = this.props.initialState
}
render () {
// Render form using this.state and this.props.update
}
}
<Mutation mutation={SOME_MUTATION}>
{(mutate) => (
<Query query={SOME_QUERY}/>
{({ data, loading, error }) => {
if (loading) return <LoadingIndicator/>
if (error) return <ErrorComponent/>
if (data) return <FormComponent initialValues={data.someQuery} update={mutate}/>
}}
</Query>
)}
</Mutation>
该变异可以在查询内部,也可以在FormComponent本身内部-一点都不重要.在没有数据之前,我们不会渲染FormComponent,因此初始值将始终反映查询的结果.
The mutation could go inside the Query, or inside the FormComponent itself -- that bit doesn't really matter. We're not rendering the FormComponent until we have data, so the initial values will always reflect the results of the query.
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