將刮圖像的位置保存到數據庫節點/ MEAN

Question

刮圖像後，我可以使用請求下載到文件夾。我想將此圖片的位置傳遞給我的Mongoose收藏。

在回調中，我認爲應該有一種方法來保存位置，以便在保存模型對象時可以傳遞此信息。

exports.createLook = function(req, res) { 
    var url = req.body.image; 
    var randomizer = '123456'; 

    var download = function(url, filename, callback) { 

    request(url) 
     .pipe(fs.createWriteStream(filename)) 
     .on('close', callback); 
    }; 

    download(url, '../client/assets/images/' + randomizer + '.jpg', function() { 
    console.log('done'); 
    // do something? 
    }); 

    // now get model details to save 
    var newLook = new Look(); 
    newLook.title = req.body.title; 
    newLook.image =  // image location 

    newLook.save(function(err, look) { 
    if(err) return res.send(500); 
    } else { 
    res.send(item); 
    } 
} 

Answer 1

假設「隨機」，會產生，我會做：

exports.createLook = function(req, res) { 
    var url = req.body.image; 
    var randomizer = getSomthingRandom(); 

    var download = function(url, filename, callback) { 

    request(url) 
     .pipe(fs.createWriteStream(filename)) 
     .on('close', callback(filename); 
    }; 

    download(url, '../client/assets/images/' + randomizer + '.jpg', function(filename) { 
    console.log('done'); 
    // now get model details to save 
    var newLook = new Look(); 
    newLook.title = req.body.title; 
    newLook.image = filename; 
    .... 
    });