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[英]Having problems exporting model functions (Express and Mongoose)
[英]Problems exporting model functions with Mongoose
我正在努力为Mongoose模型创建模型函数。 我在这里定义一个方法:
Schema.listingSchema.method('applyPrice', function() {
this.price = priceFromString(this.title);
});
我在这里访问它:
var listing = new Listing();
// assign all relevant data
listing.title = title;
...
// pull the price out of the title and description
listing.applyPrice(listing);
哪里
Listing = mongoose.model('Listing', Schema.listingSchema);
我收到错误:
TypeError: Object #<model> has no method 'applyPrice'
谁能看到这个问题?
您如何定义架构? 通常,您会执行以下操作:
var listingSchema = new mongoose.Schema({
title: String
});
listingSchema.method('applyPrice', function() {
this.price = priceFromString(this.title);
});
mongoose.model('Listing', listingSchema);
var Listing = mongoose.model('Listing');
var listing = new Listing({ title: 'Title' });
listing.applyPrice();
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