[英]Problems exporting model functions with Mongoose
I'm struggling with creating model functions for Mongoose models. 我正在努力为Mongoose模型创建模型函数。 I define a method here:
我在这里定义一个方法:
Schema.listingSchema.method('applyPrice', function() {
this.price = priceFromString(this.title);
});
and I access it here: 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);
where 哪里
Listing = mongoose.model('Listing', Schema.listingSchema);
and I receive the error: 我收到错误:
TypeError: Object #<model> has no method 'applyPrice'
Can anyone see the issue? 谁能看到这个问题?
How are you defining your schema? 您如何定义架构? Usually you would do something like this:
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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