G. *_*ard 4 mongoose mongodb node.js mongoose-schema
我想念什么?Mongoose的文档说mongoose.plugin()为所有模式注册了一个插件。这是行不通的。我可以在每个架构上注册我的插件。
我的插件:
module.exports = function (schema, options) {
schema.set('toObject',{
transform: function (doc, ret, options) {
return {
test: 'It worked!'
};
}
});
};
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我的架构:
var testPlugin = require('test-plugin.js');
var personSchema = mongoose.Schema({
_id : { type: String, default: $.uuid.init },
ssn : { type: String, required: true, trim: true },
first : { type: String, required: true, trim: true },
middle : { type: String, required: true, trim: true },
last : { type: String, required: true, trim: true }
});
personSchema.plugin(testPlugin);
var model = mongoose.model('Person', personSchema);
module.exports = model;
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不幸的是,上面的代码有效。但是,以下代码不会:
var personSchema = mongoose.Schema({
_id : { type: String, default: $.uuid.init },
ssn : { type: String, required: true, trim: true },
first : { type: String, required: true, trim: true },
middle : { type: String, required: true, trim: true },
last : { type: String, required: true, trim: true }
});
var model = mongoose.model('Person', personSchema);
module.exports = model;
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我的测试应用程序:
var testPlugin = require('test-plugin.js');
mongoose.plugin(testPlugin);
mongoose.Promise = global.Promise;
mongoose.connect(config.db);
mongoose.connection.on('error', function (err) {
if (err) { throw err; }
});
mongoose.connection.once('open', function (err) {
if (err) { throw err; }
seeds.doSeed(function(err){
if (err) { return process.exit(1); }
models.Person.find({}, function(err, people){
if (err) { throw err; }
var person = people[0];
var oPerson = person.toObject();
console.log(JSON.stringify(oPerson));
});
});
});
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我已经试过移动mongoose.plugin(testPlugin)遍布app.js文件...后连接,等等......并没有奏效。
可能未注册插件,mongoose.plugin(myMongoosePlugin)因为在全局注册插件之前创建了猫鼬模型。
expressjs路线:在app.js (server.js)注册/创建expressjs路由(使用猫鼬模型与数据库进行通信)之前,请确保您正在注册猫鼬插件。
例:
在 app.js
const express = require(express);
const mongoose = require('mongoose');
const myMongoosePlugin = require('<Mongoose Plugin file path>');
mongoose.plugin(myMongoosePlugin);
let app = express();
//register expressjs routes
require('<Express routes file path>')(app, express.Router());
// or create expressjs routes
app.post('/person', (req, res, next) => {
//where someMethod is using person mongoose model
this.someController.someMethod(someArguments)
.then((user) => {
res.json(user);
}).catch((error) => {
next(error);
});
});
// ... Some other code ...
mongoose.connect(<databaseConnectionString>);
app.listen(<Port>);
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