【发布时间】:2017-09-18 17:22:48
【问题描述】:
我正在使用GraphQL js。我想在其中实现一对多关联。我有两种类型user和Office。一个用户有很多办公室.
用户类型:
var graphql = require('graphql');
const userType = new graphql.GraphQLObjectType({
name: 'user',
fields :()=>{
var officeType=require('./officeSchema');
return {
_id: {
type: graphql.GraphQLID
},
name: {
type: graphql.GraphQLString
},
age: {
type: graphql.GraphQLString
},
office:{
type:officeType
}
};
}
});
module.exports=userType;
officeSchema:
const officeType = new graphql.GraphQLObjectType({
name: 'office',
fields:()=> {
var userType = require('./userSchema');
return {
_id: {
type: graphql.GraphQLID
},
room: {
type: graphql.GraphQLString
},
location: {
type: graphql.GraphQLString
},
users: {
type: new graphql.GraphQLList(userType),
resolve: (obj,{_id}) => {
fetch('http://0.0.0.0:8082/office/user/'+obj._id, {
method: "GET",
headers: {
'Content-Type': 'application/json'
}
})
.then(function(res) {return res});
}
}
};
}
});
现在变异代码如下:
const Adduser = {
type: userType,
args: {
name: {
type: graphql.GraphQLString
},
age: {
type: graphql.GraphQLString
}
},
resolve: (obj, {
input
}) => {
}
};
const Addoffice = {
type: OfficeType,
args: {
room: {
type: graphql.GraphQLString
},
location: {
type: graphql.GraphQLString
},
users: {
type: new graphql.GraphQLList(userInputType)
}
},
resolve: (obj, {
input
}) => {
}
};
const Rootmutation = new graphql.GraphQLObjectType({
name: 'Rootmutation',
fields: {
Adduser: Adduser,
Addoffice: Addoffice
}
});
此代码抛出错误
Rootmutation.Addoffice(users:) 参数类型必须是 Input Type 但得到:[user]。
我想在数据库中添加实际字段以及关联表的字段,但无法解决问题。
更新:
1-新增 GraphQLInputObjectType:
const officeInputType = new graphql.GraphQLInputObjectType({
name: 'officeinput',
fields: () => {
return {
room: {
type: graphql.GraphQLString
},
location: {
type: graphql.GraphQLString
}
}
}
});
const userInputType = new graphql.GraphQLInputObjectType({
name: 'userinput',
fields: () => {
return {
name: {
type: graphql.GraphQLString
},
age: {
type: graphql.GraphQLString
}
}
}
});
2-在 AddOffice 中添加了 userinputtype 而不是 usertype。
现在错误是
Rootmutation.Addoffice(user:) argument type must be Input Type but got: userinput.
【问题讨论】:
标签: ecmascript-6 graphql graphql-js