正如标题所说，我试图根据子文档字段在mongoose上创建一个复合索引，这就是我的架构的样子。
pricingSchema = new Schema({
retail:{ //normal retail price
type:Number
},
retailOnDiscount:{ //retail during solde
type:Number
},
savings:{ //price which will be saved by the customer
type:Number
},
pct_savings:{ //saving percentage
type:Number
}
});
ar ProductSchema = new Schema({
sku: {
type: Number
},
kind: {
type: String
},
title: {
type: String
},
shipping:shippingSchema,
pricing:pricingSchema,
details:detailSchema,
description: {
type: String
},
imageUrl: {
type: Array
}
});
我已尝试过以下命令
ProductSchema.index({pricing.pct_savings:1,type:-1});
但是我收到了这个错误：
/Users/willy/workspace/dev/le-beau-cheveu/dev/backend-v2/server/api/product/productModel.js:111
ProductSchema.index({pricing.pct_savings:1,type:-1});//compound index at the schema level
^
SyntaxError: Unexpected token .
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:387:25)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (/Users/willy/workspace/dev/le-beau-cheveu/dev/backend-v2/server/api/product/productController.js:1:77)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (/Users/willy/workspace/dev/le-beau-cheveu/dev/backend-v2/server/api/product/productRoutes.js:3:18)
at Module._compile (module.js:413:34)
任何人都可以帮助我，提前谢谢你。
答案 0 :(得分：0)
它只是错误的JSON属性语法，您需要将键定义为字符串。密钥名称中不接受.，除非使用引号
ProductSchema.index({'pricing.pct_savings':1,type:-1});