我的节点路由如下
SELECT poverty, E.country
FROM(
SELECT COUNT(language) as langnum, country
FROM "Language"
GROUP BY country) AS conto
JOIN "Economy" AS E
ON E.country=conto.country
JOIN (
SELECT COUNT(language) as langnum, country
FROM "Language"
GROUP BY country ORDER BY 1 DESC LIMIT 1
) AS maxlang ON maxlang.langnum = conto.langnum
ORDER BY conto.langnum DESC
我的模特是
// BASE SETUP
// =============================================================================
// call the packages we need
var express = require('express'); // call express
var app = express(); // define our app using express
var bodyParser = require('body-parser');
//var morgan = require('morgan'); // log requests to the console (express4)
//var bodyParser = require('body-parser'); // pull information from HTML POST (express4)
var methodOverride = require('method-override');
var fs = require('fs');
// configure app to use bodyParser()
// this will let us get the data from a POST
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var port = process.env.PORT || 8080; // set our port
// ROUTES FOR OUR API
// =============================================================================
var router = express.Router(); // get an instance of the express Router
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');
var User = require('./models/users');
var Dummy = require('./models/dummycar');
//app.use(express.static(__dirname + '/')); // set the static files location /public/img will be /img for users
//app.use(morgan('dev')); // log every request to the console
app.use(bodyParser.urlencoded({'extended':'true'})); // parse application/x-www-form-urlencoded
app.use(bodyParser.json()); // parse application/json
app.use(bodyParser.json({ type: 'application/vnd.api+json' })); // parse application/vnd.api+json as json
app.use(methodOverride());
// get users list
app.get('/api/users',function(req, res) {
User.find(function(err, users) {
if (err)
res.send(err);
res.json(users);
});
});
//create users
app.post('/api/users', function(req, res) {
var user = new User();
user.username = req.body.username;
user.password = req.body.password;
user.save(function(err) {
if (err)
res.send(err);
User.find(function(err, users) {
if (err)
res.send(err);
res.json(users);
});
});
});
//create cars
app.post('/api/cars', function(req, res) {
var dummy = new Dummy();
dummy.name = req.body.name;
dummy.brand = req.body.brand;
dummy.class = req.body.class;
dummy.price = req.body.price;
dummy.available = req.body.available;
dummy.save(function(err) {
if (err)
res.send(err);
res.send("sucess");
});
});
//list cars
app.get('/api/cars',function(req, res) {
Dummy.find(function(err, dummys) {
if (err)
res.send(err);
res.json(dummys);
});
});
//list cars by available
app.get('/api/cars/available',function(req, res) {
Dummy.find({available:'true'},function(err, dummys) {
if (err)
res.send(err);
res.json(dummys);
});
});
// list cars by class
app.get('/api/cars/:classtype',function(req, res) {
Dummy.find({class:req.params.classtype}, function(err,dummys) {
if (err)
res.send(err);
res.json(dummys);
});
});
// list cars by price
app.get('/api/cars/price/:startvalue/:endvalue',function(req, res) {
Dummy.find({price:{$gte:req.params.startvalue,$lte:req.params.endvalue}}, function(err,dummys) {
if (err)
res.send(err);
res.json(dummys);
});
});
// booking option by sending date and name
app.get('/api/cars/book/:nametype',function(req, res) {
Dummy.findOne({name:req.params.nametype}, function(err, dummy) {
if (err)
res.send(err);
dummy.available = false;
dummy.save(function(err) {
if (err)
res.send(err);
res.send("updated");
});
});
});
// user authentication
app.get('/api/users/:usernametype/:passwordtype',function(req, res) {
User.findOne({$and:[{username:req.params.usernametype},{password:req.params.passwordtype}]}, function(err, user) {
if (err)
res.send(err);
else {
if (user == null)
res.send(false);
else
res.send(true);
}
});
});
// REGISTER OUR ROUTES -------------------------------
// all of our routes will be prefixed with /api
//app.use('/api', router);
// application -------------------------------------------------------------
app.get('*', function(req, res) {
res.sendfile('./view/intro.html'); // load the single view file (angular will handle the page changes on the front-end)
});
// START THE SERVER
// =============================================================================
app.listen(port);
console.log('server running on ' + port);
但我不知道如何从angular.js中调用它们
我的intro.html如下所示
//dummycar.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var dummySchema = new Schema({
name: {
type: String,
required: true
},
brand: {
type: String
},
class: {
type: String,
required: true
},
price: {
type: Number,
required: true
},
available: {
type: Boolean,
required: true
},
dateavailable: {
type: Date,
default:Date.now }
});
module.exports = mongoose.model('Dummy', dummySchema);
//user.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
username: {
type: String,
required: true
},
password: {
type: String,
required: true
}
});
module.exports = mongoose.model('User', userSchema);
我想在用户点击每个链接时给他们打电话。如果有人可以帮我开发angularjs服务。
答案 0 :(得分：0)
最好是创建服务，但你可以在ctrl aswell
中完成// users.service.js
var userService = angular.module('app.userService', ['ngResource'])
.factory('users', function ($http, $q) {
var that = this;
this.data = {};
var url = '';
var factory = {
get: get
};
function get() {
url = '/api/users';
var defer = $q.defer();
$http.get(url).
success(function (data, status, headers, config) {
defer.resolve(data);
}).
error(function (data, status, headers, config) {
defer.reject(data);
});
return defer.promise;
};
});
// some.controller.js
angular.module('app.somectrl', ['app.userService'])
.controller(someController);
function someController(userService) {
userService.get().then(function (res) {
// do sth
}, function (err) {
// handle error
});
}