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[英]How to write an asynchronous for-each loop in Express.js and mongoose?
[英]How to write condtion for select data using mongoose(express.js)?
例如我給了5個對象,即移動賣家列表。我只想選擇誰都在賣品牌:諾基亞,型號名稱:Lumia,子模型:Lumia 735 TS,Lumia 510我該如何在快遞中寫條件,如果用戶選擇品牌:諾基亞,型號名稱:Lumia,子型號:Lumia 735 TS我如何在快遞中寫條件,我已給我的控制器請幫助我在最近3天內努力工作。 在mongodb中存儲的賣方列表
object 1
{
"_id": {
"$oid": "56a63a968411612f36ab4b5d"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "7500",
"name": "Lumia 735 TS"
},
{
"price": "1000",
"name": "Lumia 510"
}
],
"name": "Lumia"
}
],
"brandname": "Nokia",
"id": "986745"
}
],
"Storename": "Poorvika Mobiles",
"__v": 0
}
object 2:
{
"_id": {
"$oid": "56a63b418411612f36ab4b5e"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "7500",
"name": "Lumia 735 TS"
},
{
"price": "8500",
"name": "Lumia 830"
}
],
"name": "Lumia"
}
],
"brandname": "Nokia",
"id": "986745"
}
],
"Storename": "Nokia Store",
"__v": 0
}
object 3:
{
"_id": {
"$oid": "56a63b738411612f36ab4b5f"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "7500",
"name": "Lumia 735 TS"
},
{
"price": "8500",
"name": "Lumia 830"
}
],
"name": "Lumia"
},
{
"submodel": [
{
"price": "12000",
"name": "Asha Asn01"
},
{
"price": "5000",
"name": "Nokia Asha Dual sim"
}
],
"name": "Asha"
}
],
"brandname": "Nokia",
"id": "986745"
}
],
"Storename": "Sun Mobiles",
"__v": 0
}
object 4:
{
"_id": {
"$oid": "56a63b7d8411612f36ab4b60"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "7500",
"name": "Lumia 735 TS"
},
{
"price": "1000",
"name": "Lumia 510"
}
],
"name": "Lumia"
},
{
"submodel": [
{
"price": "12000",
"name": "Asha Asn01"
},
{
"price": "5000",
"name": "Nokia Asha Dual sim"
}
],
"name": "Asha"
}
],
"brandname": "Nokia",
"id": "986745"
}
],
"Storename": "Mobile Corner",
"__v": 0
}
object 5:
{
"_id": {
"$oid": "56a63b948411612f36ab4b61"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "8500",
"name": "Trend 840"
},
{
"price": "10000",
"name": "Galaxy Note Duos"
}
],
"name": "Galaxy"
}
],
"brandname": "Samsung",
"id": "144745"
}
],
"Storename": "Asath Mobile Center",
"__v": 0
}
object 6:
{
"_id": {
"$oid": "56a63ba48411612f36ab4b62"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "8500",
"name": "Trend 840"
},
{
"price": "10000",
"name": "Galaxy Note Duos"
}
],
"name": "Galaxy"
},
{
"submodel": [
{
"price": "6700",
"name": "Asha 230"
},
{
"price": "8500",
"name": "Asha Asn01"
}
],
"name": "Asha"
}
],
"brandname": "Samsung",
"id": "144745"
}
],
"Storename": "Zigzag Mobiles",
"__v": 0
}
object 7:
{
"_id": {
"$oid": "56a63baf8411612f36ab4b63"
},
"default": [],
"Categories": [
{
"models": [
{
"submodel": [
{
"price": "7500",
"name": "Lumia 735 TS"
},
{
"price": "1000",
"name": "Lumia 510"
}
],
"name": "Lumia"
},
{
"submodel": [
{
"price": "12000",
"name": "Asha Asn01"
},
{
"price": "5000",
"name": "Nokia Asha Dual sim"
}
],
"name": "Asha"
}
],
"brandname": "Nokia",
"id": "986745"
},
{
"models": [
{
"submodel": [
{
"price": "8500",
"name": "Trend 840"
},
{
"price": "10000",
"name": "Galaxy Note Duos"
}
],
"name": "Galaxy"
},
{
"submodel": [
{
"price": "6700",
"name": "Asha 230"
},
{
"price": "8500",
"name": "Asha Asn01"
}
],
"name": "Asha"
}
],
"brandname": "Samsung",
"id": "144745"
}
],
"Storename": "Mobile Bazar",
"__v": 0
}
控制器:
exports.shopByPhone = function(req, res) {
Shop.find().sort('-created').populate('user', 'displayName').exec(function(err, shops) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.jsonp(shops);
}
});
};
條件1:我想過濾僅銷售商品的數據
品牌:諾基亞
型號:Lumia
子型號:Lumia 735 TS,Lumia 510
如果符合上述條件,則應顯示這3個賣家
1,Poorvika手機
2.移動角落
3.流動市場
這3家店鋪只賣
品牌:諾基亞
型號:Lumia
子型號:Lumia 735 TS,Lumia 510
條件2:
我想過濾僅銷售商品的數據
品牌:諾基亞
型號:Lumia
子型號:Lumia 735 TS
如果符合上述條件,則應顯示這3個賣家
1,Poorvika手機
2.移動角落
3.流動市場
這3家店鋪只賣
品牌:諾基亞
型號:Lumia
子型號:Lumia 735 TS,Lumia 510
嘗試
find({
'Categories.brandname':'Nokia',
'Categories.models.name':'Lumia',
'Categories.models.submodel.name':
{'$all':['Lumia 510', 'Lumia 735 TS']}
})
$all
將為您提供同時出售Lumia 510 和 Lumia 735的商店。如果您需要選擇這些模型之一的查詢,請改用$in
。
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