text: 'use strict';
  
  /**
   * Module dependencies.
   */
  var mongoose = require('mongoose'),
    errorHandler = require('./errors.server.controller'),
    Article = mongoose.model('Article'),
    _ = require('lodash');
  
  /**
   * Create a article
   */
  exports.create = function (req, res) {
    var article = new Article(req.body);
    article.user = req.user;
  
    article.save(function (err) {
      if (err) {
        return res.status(400).send({
          message : errorHandler.getErrorMessage(err)
        });
      } else {
        res.json(article);
      }
    });
  };
  
  /**
   * Show the current article
   */
  exports.read = function (req, res) {
    res.json(req.article);
  };
  
  /**
   * Update a article
   */
  exports.update = function (req, res) {
    var article = req.article;
  
    article = _.extend(article, req.body);
  
    article.save(function (err) {
      if (err) {
        return res.status(400).send({
          message : errorHandler.getErrorMessage(err)
        });
      } else {
        res.json(article);
      }
    });
  };
  
  /**
   * Delete an article
   */
  exports.delete = function (req, res) {
    var article = req.article;
  
    article.remove(function (err) {
      if (err) {
        return res.status(400).send({
          message : errorHandler.getErrorMessage(err)
        });
      } else {
        res.json(article);
      }
    });
  };
  
  /**
   * List of Articles
   */
  exports.list = function (req, res) {
    Article.find().sort('-created').populate('user', 'displayName').exec(function (err, articles) {
      if (err) {
        return res.status(400).send({
          message : errorHandler.getErrorMessage(err)
        });
      } else {
        res.json(articles);
      }
    });
  };
  
  /**
   * Article middleware
   */
  exports.articleByID = function (req, res, next, id) {
    Article.findById(id).populate('user', 'displayName').exec(function (err, article) {
      if (err) return next(err);
      if (!article) return next(new Error('Failed to load article ' + id));
      req.article = article;
      next();
    });
  };
  
  /**
   * Article authorization middleware
   */
  exports.hasAuthorization = function (req, res, next) {
    if (req.article.user.id !== req.user.id) {
      return res.status(403).send({
        message : 'User is not authorized'
      });
    }
    next();
  };
  