我希望我可以用我在Stack Overflow上发布的第一个问题来解释自己。
我正在使用MEAN堆栈构建一个小型测试应用程序。
应用程序根据我创建的Express Route从Mongoose接收可变数据。
例如,网址为:localhost:3000 / cities / test / Paris
根据城市的名称,回复会给我城市的名称和描述。我知道如何在.ejs模板中获取这些数据 但那不是我想要的。我想在ngRepeat中使用这些数据。
也许这不是正确的方法,但也许你可以帮我解决这个问题。
我想要这样做的原因是因为我不想要单个页面应用程序而是一个Angular模板,它可以反复使用每个城市,并且只使用从mongoose find()结果中获取的数据而不是整个城市阵列。
app.js:
var cityRoutes = require('./routes/cities');
app.use('/cities', cityRoutes);
app.set('views', './views'); // specify the views directory
app.set('view engine', 'ejs'); // register the template engine
./ routes / cities / cities.js:
var express = require('express');
var citiesList = require('../server/controllers/cities-controller');
var bodyParser = require('body-parser');
var urlencode = bodyParser.urlencoded({ extended: false });
var router = express.Router();
// because this file is a fallback for the route /cities inside app.js
// the route will become localhost:3000/cities/test/:name
// not to be confused by its name in this file.
router.route('/test/:name')
.get(citiesList.viewTest)
module.exports = router;
../ server / controllers / cities-controller.js:
var City = require('../models/cities');
module.exports.viewTest = function(request, responce){
City.find({ stad: request.params.name }, function(err, results){
if (err) return console.error(err);
if (!results.length) {
responce.json( "404" );
} else {
responce.render('angular.ejs', { messages:results });
// through this point everything works fine
// the angular.ejs template gets rendered correctly
// Now my problem is how tho get the results from the
// response.render inside the Angular directive
// so I can use the data in a $scope
}
});
};
../模型/ cities.js
var mongoose = require('mongoose');
module.exports = mongoose.model('City', {
stad: { type: String, required: true },
omschrijving: String
});
AngularJS指令:
// This is where I would like to use the messages result data
// so I can create a $scope that handles data that can be different
// for each url
// so basically I am using this directive as a template
app.directive('bestelFormulier', function () {
return {
restrict: 'E',
templateUrl: '/partials/bestel-formulier.html',
controller: ['$scope', '$http', '$resource', '$cookieStore',
function($scope, $http, $resource, $cookieStore){
// at this point it would be nice that the $scope gets the
// url based results. But I don't now how to do that..
// at this point the var "Cities" gets the REST API with
// all the cities...
var Cities = $resource('/cities');
// get cities from mongodb
Cities.query(function(results){
$scope.cities = results;
//console.log($scope.products);
});
$scope.cities = {};
}],
controllerAs: 'productsCtrl'
}
});
数据库存储如下:
[
{
stad: 'Paris',
omschrijving: 'description Paris',
},
{
stad: 'Amsterdam',
omschrijving: 'description Amsterdam',
}
]
我希望这些文件可以帮助解释我的问题。
提前感谢您帮助我
答案 0 :(得分:0)
我找到了办法......
我的代码的以下更改修复了我的问题。
app.js中的
var cityRoutes = require('./routes/cities');
app.use('/', cityRoutes);
// removed the name cities
./ routes / cities / cities.js:
router.route('/cities/test/:name')
.get(citiesList.viewTest)
// added this route to use as an API
router.route('/api/cities/test/:name')
.get(citiesList.viewStad)
../ server / controllers / cities-controller.js:
// added this callback so that a request to this url
// only responses with the data I need
module.exports.viewStad = function(request, responce){
City.find({ stad: request.params.name }, function(err, results){
if (err) return console.error(err);
if (!results.length) {
responce.json( "404" );
} else {
responce.json( results );
}
});
};
在我的AngularJS应用程序中,我添加了$ locationDirective并将我的Angular指令中的以下内容更改为:
var url = $location.url();
var Cities = $resource('/api' + url);
// now when my .ejs template gets loaded the Angular part looks at
// the current url puts /api in front of it and uses it to get the
// correct resource
这就是我在$ scope中使用它的方式,并使用了可爱的Angular功能: - )
希望我可以帮助其他人...最终这是一个简单的解决方案,也许有人在那里知道更好的方法。对我而言,它现在有效。