相关数据没有从Apollo返回给客户?

时间:2017-06-04 00:19:54

标签: postgresql sequelize.js graphql apollo apollo-client

这是相关的Apollo代码。 (省略了许多数据库字段,使其更快/更容易阅读这篇文章。)

连接器

const userAccountsDataModel = db.define('userAccountsData', {
    id: {type: Sequelize.STRING, primaryKey: true},
    picture_medium: {type: Sequelize.STRING}
});


const associatesDataModel =  db.define('associatesData', {
    _id: {type: Sequelize.STRING, primaryKey: true},
    first_name: {type: Sequelize.STRING},
    last_name: {type: Sequelize.STRING},
    userID: {type: Sequelize.STRING},
});

associatesDataModel.belongsTo(userAccountsDataModel, {foreignKey: 'userID'});

SCHEMA

type userAccountsData {
    id: String
    picture_medium: String
}

type associatesData {
    _id: String
    first_name: String
    last_name: String
    userID: String
    userAccountsData: [userAccountsData]
}

QUERY

const GETONEASSOCIATE_QUERY = gql`
query getOneAssociate($_id: String!) {
  getOneAssociate(_id: $_id) {
    _id
    first_name
    last_name
    userID 
    accountsData{
        id
        picture_medium
      }
  }
} `;

RESOLVER

getOneAssociate(_, args)  {
    console.log('in getOneAssociate');
    var ret = connectors.associatesData.findAll({
        where: args,
        include: [connectors.userAccountsData],
        logging: console.log
    }).then((res) => res.map((item) => item.dataValues));

    return ret;
},

通过Sequelize,解析器生成以下SQL:

SELECT "associatesData"."_id", 
       "associatesData"."first_name", 
       "associatesData"."last_name", 
       "associatesData"."userID", 
       "userAccountsDatum"."id" AS "userAccountsDatum.id", 
       "userAccountsDatum"."picture_medium" AS "userAccountsDatum.picture_medium" 
FROM "associatesDatas" AS "associatesData" 
   LEFT OUTER JOIN "userAccountsData" AS "userAccountsDatum" 
                ON "associatesData"."userID" = "userAccountsDatum"."id" 
WHERE "associatesData"."_id" = '35';

当我在SQL客户端中运行上述SQL时,我可以看到所有要搜索的数据都被返回,包括来自相关“userAccountsData”表的数据。

但是,当数据到达我在javascript浏览器中运行的客户端代码时,相关表中的数据将丢失 - 应该包含它的对象为null。

我错过了什么?

提前致谢所有信息!

1 个答案:

答案 0 :(得分:0)

Sequize自动复制表名,结果证明这是一个异常现象。

默认情况下,Sequelize会自动复数表名。应该可以通过使用Sequelize的freezeTableName属性来关闭此行为。但是,根据this Sequelize issue post,有些情况下,Sequelize会忽略freezeTableName属性并且无论如何都会复数(有时会单一化)表名。

在发现这个之后,我能够通过复制相关的表名并通过我的所有Apollo代码来更新对该表的引用来解决异常,以便它们也是多元化的。