db.collection('system.namespaces').find().toArray(function(err, items) {}) db.collection('system.namespaces').find().toArray(function(err, items) {}) db.collection('system.namespaces').find().toArray(function(err, items) {}) db.collection('system.namespaces').find().toArray(function(err, items) {}) I need to check if a collection exists on a certain database and create it if it doesn't. I know that
db.createCollection(collName, {strict:true}, function(error, collection))
checks for existance of collection collName before creating it and sets error object. but I need an independent function to check that.
Salam (means Hello) :)
I need to check if a collection exists on a certain database and create it if it doesn't. I know that
db.createCollection(collName, {strict:true}, function(error, collection))
checks for existance of collection collName before creating it and sets error object. but I need an independent function to check that.
Salam (means hello) :)
I'm running mongodb 2.4.8 and Mongo DB Native NodeJS Driver. when I use the following function, only first document that matched query updates. how can I update all matching documents?
function update(coll, query, update, callback){
var options = options || {};
MongoClient.connect('mongodb://127.0.0.1:27017/dbName', function(error, db) {
if(error){
return console.dir(error);
}
db.collection(coll).update(query, update, {w:1}, function(error, result) {
callback(error, result);
});
});
}
I installed my mongodb driver via npm install mongodb command, which installs version 1.3.23, does this driver version support multi update? if not, how can I install a newer version of driver supports multi update?
Salam (means hello) :)
I'm running mongodb 2.4.8 and Mongo DB Native NodeJS Driver. when I use the following function, only first document that matched query updates. how can I update all matching documents?
function update(coll, query, update, callback){
var options = options || {};
MongoClient.connect('mongodb://127.0.0.1:27017/dbName', function(error, db) {
if(error){
return console.dir(error);
}
db.collection(coll).update(query, update, {w:1}, function(error, result) {
callback(error, result);
});
});
}
I installed my mongodb driver via npm install mongodb command, which installs version 1.3.23, does this driver version support multi update? if not, how can I install a newer version of driver supports multi update?
Salam (means Hello) :)
I'm developing a static file server that must support data-encoding: gzip, the example in zlib documentation is working fine for me, but I need to save zipped files to disk, to avoid re-compressing for future requests. here is my code, which doesn't work:
http.createServer(function(request, response) {
var url = my_normalizer(request.url);
var acceptEncoding = request.headers['accept-encoding'] || '';
if(acceptEncoding.match(/\bgzip\b/)){
try{
var zipped = fs.createReadStream(url +'.gz');
}catch(e){
var inp = fs.createReadStream(url);
var out = fs.createWriteStream(url+'.gz');
inp.pipe(zlib.createGzip()).pipe(out);
var zipped = fs.createReadStream(url +'.gz');
}
response.writeHead(200, { 'content-encoding': 'gzip' });
zipped.pipe(response);
}
}).listen(80);
and this is the result in firefox:
Content Encoding Error
The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.
for what it's worth, a .gz version of the requested file is correctly generated and saved to disk.