我正在尝试在快速项目中使用mongoose自动增量插件，但由于某种原因我无法连接。
这就是我的app.js文件中的内容
//dependencies
var config = require('./config'),
express = require('express'),
session = require('express-session'),
mongoStore = require('connect-mongo')(session),
http = require('http'),
path = require('path'),
passport = require('passport'),
mongoose = require('mongoose'),
autoIncrement = require('mongoose-auto-increment'),
helmet = require('helmet');
var stripe = require("stripe")("sk_test_nEgbqClEavLcf8zGIj4GtaOy");
//create express app
var app = express();
//keep reference to config
app.config = config;
//setup the web server
app.server = http.createServer(app);
//setup mongoose
app.db = mongoose.createConnection(config.mongodb.uri);
app.db.on('error', console.error.bind(console, 'mongoose connection error: '));
app.db.once('open', function () {
//and... we have a data store
});
//add plugin for autoincrement
autoIncrement.initialize("mongodb://localhost:27017/prwrite");
当我运行应用程序时，我收到以下错误
/home/kseguy/node_projects/prwrite/node_modules/mongoose-auto-increment/index.js:27
throw ex;
^
TypeError: Object mongodb://localhost:27017/prwrite has no method 'model'
at Object.exports.initialize (/home/kseguy/node_projects/prwrite/node_modules/mongoose-auto-increment/index.js:10:38)
at Object.<anonymous> (/home/kseguy/node_projects/prwrite/app.js:36:15)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
这是我在console.log my app.db
时得到的 { base:
{ connections: [ [Object], [Circular] ],
plugins: [],
models: {},
modelSchemas: {},
options: { pluralization: true } },
collections: {},
models: {},
replica: false,
hosts: null,
host: 'localhost',
port: 27017,
user: undefined,
pass: undefined,
name: 'prwrite',
options:
{ db: { read_preference: 'primary', forceServerObjectId: false, w: 1 },
auth: {},
server: { socketOptions: [Object], auto_reconnect: true },
replset: { socketOptions: {} } },
otherDbs: [],
_readyState: 2,
_closeCalled: false,
_hasOpened: false,
_listening: false,
_events:
{ error: [Function],
open: { [Function: g] listener: [Function] } },
db:
{ domain: null,
_events: {},
_maxListeners: 10,
databaseName: 'prwrite',
serverConfig:
{ domain: null,
_events: {},
_maxListeners: 10,
_callBackStore: [Object],
_commandsStore: [Object],
auth: [Object],
_dbStore: [Object],
host: 'localhost',
port: 27017,
options: [Object],
internalMaster: false,
connected: false,
poolSize: 5,
disableDriverBSONSizeCheck: false,
_used: true,
replicasetInstance: null,
emitOpen: true,
ssl: false,
sslValidate: false,
sslCA: null,
sslCert: undefined,
sslKey: undefined,
sslPass: undefined,
serverCapabilities: null,
name: 'localhost:27017',
socketOptions: [Object],
logger: [Object],
eventHandlers: [Object],
_serverState: 'connecting',
_state: [Object],
recordQueryStats: false,
socketTimeoutMS: [Getter/Setter],
db: [Circular],
dbInstances: [Object],
connectionPool: [Object] },
options: { read_preference: 'primary', forceServerObjectId: false, w: 1 },
_applicationClosed: false,
slaveOk: false,
bufferMaxEntries: -1,
native_parser: undefined,
bsonLib:
{ Code: [Function: Code],
Symbol: [Function: Symbol],
BSON: [Object],
DBRef: [Function: DBRef],
Binary: [Object],
ObjectID: [Object],
Long: [Object],
Timestamp: [Object],
Double: [Function: Double],
MinKey: [Function: MinKey],
MaxKey: [Function: MaxKey],
promoteLongs: true },
bson: { promoteLongs: true },
bson_deserializer:
{ Code: [Function: Code],
Symbol: [Function: Symbol],
BSON: [Object],
DBRef: [Function: DBRef],
Binary: [Object],
ObjectID: [Object],
Long: [Object],
Timestamp: [Object],
Double: [Function: Double],
MinKey: [Function: MinKey],
MaxKey: [Function: MaxKey],
promoteLongs: true },
bson_serializer:
{ Code: [Function: Code],
Symbol: [Function: Symbol],
BSON: [Object],
DBRef: [Function: DBRef],
Binary: [Object],
ObjectID: [Object],
Long: [Object],
Timestamp: [Object],
Double: [Function: Double],
MinKey: [Function: MinKey],
MaxKey: [Function: MaxKey],
promoteLongs: true },
_state: 'connecting',
pkFactory:
{ [Function: ObjectID]
index: 7803230,
createPk: [Function: createPk],
createFromTime: [Function: createFromTime],
createFromHexString: [Function: createFromHexString],
isValid: [Function: isValid] },
forceServerObjectId: false,
safe: false,
notReplied: {},
isInitializing: true,
openCalled: true,
commands: [],
logger: { error: [Function], log: [Function], debug: [Function] },
tag: 1409765208948,
eventHandlers:
{ error: [],
parseError: [],
poolReady: [],
message: [],
close: [] },
serializeFunctions: false,
raw: false,
recordQueryStats: false,
retryMiliSeconds: 1000,
numberOfRetries: 60,
readPreference: undefined } }
如果我不包含该插件，该程序工作正常。任何帮助将非常感激。
答案 0 :(得分：1)
我有同样的问题并修复它。
您将连接作为参数传递给方法＆＃34;初始化＆＃34;不需要。在具有Express或MEAN Stack（我的情况）的Node.js下，Mongoose保持自身实例化并与MongoDB连接。您不需要在 app.js 或 server.js 文件中放置任何内容，只能在 model.js 文件中。
在插件的文件 ... / node_modules / mongoose-auto-increment / index.js 上，我修改了＆＃34; initialize＆＃34;方法。代码如下：
// Module Scope
var mongoose = require('mongoose'),
extend = require('extend'),
Schema = mongoose.Schema,
counterSchema,
IdentityCounter;
// Initialize plugin by creating counter collection in database.
exports.initialize = function () {
try {
IdentityCounter = mongoose.model('IdentityCounter');
} catch (ex) {
if (ex.name === 'MissingSchemaError') {
// Create new counter schema.
counterSchema = new Schema({
model: { type: String, require: true },
field: { type: String, require: true },
count: { type: Number, default: 0 }
});
// Create a unique index using the "field" and "model" fields.
counterSchema.index({ field: 1, model: 1 }, { unique: true, required: true, index: -1 });
// Create model using new schema.
IdentityCounter = mongoose.model('IdentityCounter', counterSchema);
}
else
throw ex;
}
};
现在您可以使用文件 contact.server.model.js 的此代码示例：
'use strict';
/**
* Module dependencies.
*/
var mongoose = require('mongoose'),
Schema = mongoose.Schema,
autoIncrement = require('mongoose-auto-increment');
autoIncrement.initialize();
/**
* Contact Schema
*/
var ContactSchema = new Schema({
name: {
type: String,
default: '',
required: 'Please fill Contact name',
trim: true
},
created: {
type: Date,
default: Date.now
},
user: {
type: Number,
ref: 'User'
}
});
ContactSchema.plugin(autoIncrement.plugin, {
model: 'Contact',
field: '_id',
startAt: 1,
incrementBy: 1
});
mongoose.model('Contact', ContactSchema);
现在它对我来说非常好用！
答案 1 :(得分：0)
//add plugin for autoincrement
autoIncrement.initialize("mongodb://localhost:27017/prwrite");
应该是：
app.db = mongoose.createConnection(config.mongodb.uri);
// ...
//add plugin for autoincrement
autoIncrement.initialize(app.db);