我有两个集合categorytypes
和categories
,每个类别类型都有多个类别。在获取类别的每个索引中的所有类别详细信息时,应该有一个category_type字段,其中提供了category_type的所有详细信息。
我的代码是:
exports.findAllWithParentChild = (req, res) => {
let resData = [];
Models.Category.find()
.then(data => {
var results = [];
async.each(data,function(cat,callback) {
console.log(cat.categorytype_id)
Models.CategoryType.findOne({'_id' : mongoose.Types.ObjectId(cat.categorytype_id)},function(err,catType) {
var obj = cat.toObject();
obj.category_type = catType;
results.push(obj);
callback(err);
});
},
function(err) {
if (err) throw err;
res.send({
response: true,
message: "Category deleted successfully.",
data : results
});
});
});
};
以及我需要的格式:
{
"_id": "5cb78c44ede6452278d13fbe",
"title": "fhhghgf",
"description": "hgfhgf",
"slug": "hgfhgfhgf",
"categorytype_id": "5cb78ba8ede6452278d13fb6",
"user_id": "hgfhgfh",
"status": true,
"created_at": "2019-04-17T20:27:48.821Z",
"updated_at": "2019-04-17T20:27:48.821Z",
"__v": 0,
"category_type": {
"_id": "5cb78ba8ede6452278d13fb6",
"title": "asde",
"description": "asde",
"slug": "asde",
"user_id": "asde",
"status": true,
"created_at": "2019-04-17T20:25:12.863Z",
"updated_at": "2019-04-17T20:25:12.863Z",
"__v": 0
}
},
还有什么更好的方法吗?感谢您的协助。
答案 0 :(得分:0)
用下面的代码更改代码并检查输出
exports.findAllWithParentChild = (req, res) => {
Models.Category.find({}).
populate('categorytypes').
exec(function (err, data) {
if (err) return handleError(err);
console.log('Success', data);
});
};