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问题描述
我在项目上有一个问题，我在互联网上找不到任何解决方案.这是情况.
- 我有2种类型的联合(DataResult)(Teaser&Program)
- 我有一个Zone带有data字段(阵列DataResult) 的类型
- Teaser&Program具有相同的title字段，具有不同的类型(String vs String!)
这是Zone，Teaser和Program模式的零件:
type Program {
title: String
}
type Teaser {
title: String!
}
union DataResult = Teaser | Program
type Zone {
(...)
data: [DataResult!]
}
当我尝试如下查询部分中所述查询区域数据时，我从GraphQl中出现了一个错误.
zones {
...zoneFieldsWithoutData
data {
... on Program {
...programFields
}
... on Teaser {
...teaserFields
}
}
}
这是错误:
Error: GraphQL error: Fields \"title\" conflict because they return conflicting types String and String!. Use different aliases on the fields to fetch both if this was intentional
我不能使用别名，因为规格需要所有"数据库"实体的属性名称.我该怎么办?
此外，即使我为title设置了相同的类型，我也有很多警告在控制台中"缺少字段" ....
ps:我将香草apollo用作graphql客户端(在服务器端)
推荐答案
我知道您不能使用别名，但是对于其他可以(包括我在内)的人:
从 github "> github 使用现场别名:
zones {
... on Program {
programTitle: title
}
... on Teaser {
teaserTitle: title
}
}
其他推荐答案
使用 interface 为我解决了这个问题，包括"丢失"字段" - 错误(尽管这意味着我认为字段必须是相同类型的).
的线
interface DataResult {
title: String!
}
type Program implements DataResult {
// Not sure if this can be empty?
}
type Teaser implements DataResult {
// Not sure if this can be empty?
}
type Zone {
(...)
data: [DataResult!]
}
其他推荐答案
它是根据规范实施的: 请参阅3.a，网址: http://face.githbook.github.io/graphql/draft/#sameresponseshape()
请参阅 js/essess/1361#issuecomment-393489320 有关更多详细信息.
问题描述
I've got an issue on my project and I can't find any solution on the internet. Here is the situation.
- I've an Union (DataResult) of 2 types (Teaser & Program)
- I've a Zone type with a data field (an array DataResult)
- Teaser & Program have the same title field with a different type (String vs String!)
Here is parts from Zone, Teaser and Program schemas:
type Program {
title: String
}
type Teaser {
title: String!
}
union DataResult = Teaser | Program
type Zone {
(...)
data: [DataResult!]
}
When I tried to query zone data as described in the query part below, I've got an error from GraphQL.
zones {
...zoneFieldsWithoutData
data {
... on Program {
...programFields
}
... on Teaser {
...teaserFields
}
}
}
Here is the error:
Error: GraphQL error: Fields \"title\" conflict because they return conflicting types String and String!. Use different aliases on the fields to fetch both if this was intentional
I can't use an alias because the specs needs the same attribute name for all "DataResult" entities. What can I do ?
Moreover, even if I set the same Type for title, I've a lot of warning about "missing fields" in the console....
PS: I use Vanilla Apollo as GraphQL client (on the server side)
推荐答案
I know that you cannot use an alias, but for everyone else who can (including me):
The simple answer taken from github is to use field aliases:
zones {
... on Program {
programTitle: title
}
... on Teaser {
teaserTitle: title
}
}
其他推荐答案
Using an interface solved this problem for me, including the "missing field" - errors (although this means the fields have to be of the same type I think).
Something along the lines of
interface DataResult {
title: String!
}
type Program implements DataResult {
// Not sure if this can be empty?
}
type Teaser implements DataResult {
// Not sure if this can be empty?
}
type Zone {
(...)
data: [DataResult!]
}
其他推荐答案
It's implemented according to the specification: See 3.a at: http://facebook.github.io/graphql/draft/#SameResponseShape()
See https://github.com/graphql/graphql-js/issues/1361#issuecomment-393489320 for more details.
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