mongodb - How to get element property from array in Mongoose?

Question

I have document structure like this in my schools collection

I am searching school by its code from array of codes School.findOne({ 'codes.code': '12345678' }) and I am getting my school but I also want to get code.type property from code object where my code is 12345678. Should i use javascript Array.find?

标签： mongodbmongoose

Answer 1

你可以做的是选择匹配的数组元素

School.find({ 'codes.code': '12345678' }, {"codes.$":1})

否则，是的，您需要在数组中找到元素：

var myschool = School.find({ 'codes.code': '12345678' })[0]
myschool.codes.find(c => c.code == '12345678')