gistfile1.js

//
// # Simple Mongo Collection API Endpoint
//
var ObjectID = mongo.ObjectID;
(exports = module.exports = function(house, options){
    
    // This endpoint requires a data source
    var ds = options.ds;
    var col = options.collection;
    
    var handleReq = function(req, res, next) {
        /*if(!req.session.data.user) {
                res.writeHead(403);
                res.end('{}');
                return;
            }*/
        var path = req.hasOwnProperty('urlRouted') ? req.urlRouted : req.url;
        
        var findQuery = function(query) {
            // accept "id" (backbone.js) but convert it to mongo object _id's
            if(query.id) {
                query._id = query.id;
                delete query.id;
            }
            if(query.hasOwnProperty('_id') && typeof query._id == 'string') {
                try {
                    query._id = new ObjectID(query._id);
                } catch(e) {
                    console.log('bad object id');
                }
            }
            // query mongo id's
            if(query.hasOwnProperty('id')) {
                query._id = new ObjectID(query.id);
                delete query.id;
            }
            ds.find(col, query, function(err, data){
                if(err) {
                    house.log.err(err);
                } else if(data) {
                    res.data(data);
                } else {
                    house.log.err(new Error('no data from mongo'));
                }
            });
        }
        
        var docId;
        if(path.length > 1 && path.indexOf('/') === 0) {
            docId = new ObjectID(path.substr(1));
        }
        if(req.method == 'GET') {
            var query = {};
            if(docId) {
                query._id = docId;
                findQuery(query);
            } else {
                if(req.query) {
                    query = req.query;
                    findQuery(query);
                }
            }
        } else if(req.method == 'HEAD') {
            var query = {};
            if(docId) {
                query._id = docId;
                findQuery(query);
            } else {
                if(req.query) {
                    query = req.query;
                }
                ds.count(col, query, function(err, data){
                    if(err) {
                        house.log.err(err);
                    } else {
                        res.setHeader('X-Count', data);
                        res.data({});
                    }
                });
            }
        } else if(req.method == 'POST') {
            if(path == '') {
                ds.insert(col, req.fields, function(err, data){
                    ds.find(col, {_id: data.id}, function(err, docs) {
                        if (err) {
                            house.log.err(err);
                        } else {
                            res.data(_.first(docs));
                        }
                    });
                });
            }
        } else if(req.method == 'PUT') {
            var query = {};
            if(docId) {
                query._id = docId;
                var putDoc = req.fields;
                ds.update(col, query, putDoc, function(err, data){
                    if(err) {
                        house.log.err(err);
                        res.end('error');
                    } else {
                        ds.find(col, query, function(err, data) {
                            res.data(_.first(data));
                        });
                    }
                });
            }
        } else if(req.method == 'DELETE') {
            var query = {};
            if(docId) {
                query._id = docId;
                ds.find(col, query, function(err, data) {
                    var doc = _.first(data);
                    ds.remove(col, query, function(err, data){
                        if(err) {
                            house.log.err(err);
                            res.end('error');
                        } else {
                            res.data(data);
                        }
                    });
                });
                
            }
        } else if(req.method == 'OPTIONS') {
            
        }
    }
    return handleReq;
});