Neo4j 带有@cypher schema指令的自定义解析器不接受日期作为输入-GRANDStack
我正在尝试将自定义解析程序添加到我的grand stack应用程序中。在那里,我将DateInput传递给我的变体时出错 这是我的模式:Neo4j 带有@cypher schema指令的自定义解析器不接受日期作为输入-GRANDStack,neo4j,graphql,grandstack,neo4j-graphql-js,Neo4j,Graphql,Grandstack,Neo4j Graphql Js,我正在尝试将自定义解析程序添加到我的grand stack应用程序中。在那里,我将DateInput传递给我的变体时出错 这是我的模式: type Registration @hasRole(roles: [admin]) { registrationId: ID! startDate: Date! endDate: Date } type Mutation { CreateRegistration(startDate: Date!, endDate: Date): Registra
type Registration @hasRole(roles: [admin]) {
registrationId: ID!
startDate: Date!
endDate: Date
}
type Mutation {
CreateRegistration(startDate: Date!, endDate: Date): Registration
@cypher(
statement: """
CREATE (registration: Registration {
registrationId: apoc.create.uuid(),
startDate: $startDate,
endDate: $endDate
})
RETURN registration
"""
)
}
这是我的变种,我在GraphQL游乐场中使用:
mutation CreateRegistration {
CreateRegistration(
startDate: { year: 2020, month: 3, day: 22 }
endDate: { year: 2020, month: 4, day: 12 }
) {
registrationId
startDate {
formatted
}
}
}
这是由neo4j-graphql
包自动生成的突变:
20:49:51 api | 2020-11-29T19:49:51.949Z neo4j-graphql-js CALL apoc.cypher.doIt("CREATE (registration: Registration {registrationId: apoc.create.uuid(), startDate: $startDate, endDate: $endDate})
20:49:51 api | RETURN registration", {startDate:$startDate, endDate:$endDate, first:$first, offset:$offset}) YIELD value
20:49:51 api | WITH apoc.map.values(value, [keys(value)[0]])[0] AS `registration`
20:49:51 api | RETURN `registration` { .registrationId ,startDate: { formatted: toString(`registration`.startDate) }} AS `registration`
20:49:51 api | 2020-11-29T19:49:51.949Z neo4j-graphql-js {
20:49:51 api | "startDate": {
20:49:51 api | "year": 2020,
20:49:51 api | "month": 3,
20:49:51 api | "day": 22
20:49:51 api | },
20:49:51 api | "endDate": {
20:49:51 api | "year": 2020,
20:49:51 api | "month": 4,
20:49:51 api | "day": 12
20:49:51 api | },
20:49:51 api | "first": -1,
20:49:51 api | "offset": 0
20:49:51 api | }
这是我得到的错误回复:
{
"errors": [
{
"message": "Failed to invoke procedure `apoc.cypher.doIt`: Caused by: org.neo4j.exceptions.CypherTypeException: Property values can only be of primitive types or arrays thereof",
当我只使用不带@cypher的自动生成解析器时,它可以完美地工作
我的日期对象的输入值似乎有问题。当我完全删除日期时,它也会起作用
有人有什么建议吗,我做错了什么
THX问题在于,您正在将对象作为neo4j不支持的
startDate
和endDate
属性的值传递
例如,您可以使用该函数将对象转换为合适的类型:
type Mutation {
CreateRegistration(startDate: Date!, endDate: Date): Registration
@cypher(
statement: """
CREATE (registration: Registration {
registrationId: apoc.create.uuid(),
startDate: date($startDate),
endDate: date($endDate)
})
RETURN registration
"""
)
}
当我使用“格式化”版本时,它会起作用:
如果突变必须是:
mutation CreateRegistration {
CreateRegistration(
startDate: { formatted: "2020-3-22" }
endDate: { formatted: "2020-6-22" }
) {
registrationId
startDate {
formatted
}
}
}
我也尝试过这个解决方案,但不幸的是,它并没有解决问题。当我使用您的方法时,我得到以下错误:
“errors”:[{“message”:“调用过程apoc.cypher.doIt失败:原因:java.lang.IllegalArgumentException:year必须是整数值,但却是一个DoubleValue”,
mutation CreateRegistration {
CreateRegistration(
startDate: { formatted: "2020-3-22" }
endDate: { formatted: "2020-6-22" }
) {
registrationId
startDate {
formatted
}
}
}