Databases
StackOverflow2013
Postsdbo
POBinding Mongoose models save method inside async.auto (NodeJs)
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POBinding Mongoose models save method inside async.auto (NodeJs)
    primarykey
    data
    text
    <p>Right now I'm working with both mongoose 3.1.1 and async 0.1.22. But when I tried to save Mongoose models instance inside <code>async.auto</code> it just stopped working.</p> <p>See the following example and try it by yourself:</p> <pre><code>mongoose = require 'mongoose' async = require 'async' Schema = mongoose.Schema ObjectId = Schema.ObjectId mongoose.connect "mongodb://localhost:27017/async-test" SmthSchema = new Schema data : type: String mongoose.model 'Smth', SmthSchema Smth = mongoose.model 'Smth' test1 = (next) -&gt; console.log ' test 1' smth = new Smth data: 'some data' async.auto first: (callback) -&gt; smth.save callback second: ['first', (callback) -&gt; console.log ' it works!' callback()] next test2 = (next) -&gt; console.log ' test 2' smth = new Smth data: 'some data' async.series [ smth.save.bind smth (callback) -&gt; console.log ' it works!' callback() ], next test3 = (next) -&gt; console.log ' test 3' context = save: (callback) -&gt; callback null async.auto first: context.save.bind context second: ['first', (callback) -&gt; console.log ' it works!' callback()] next test4 = (next) -&gt; console.log ' test 4' smth = new Smth data: 'some data' async.auto first: smth.save.bind smth second: ['first', (callback) -&gt; console.log ' it works!' callback()] next console.log 'running all tests' async.series [test1, test2, test3, test4], (err) -&gt; console.log err || 'all works!' </code></pre> <p>Resulting output:</p> <pre><code>running all tests test 1 it works! test 2 it works! test 3 it works! test 4 </code></pre> <p><code>smth.save.bind smth</code> binds save function to the object it shall save. It works great in <code>async.series</code> and <code>async.parallel</code>, but not in <code>async.auto</code>.</p> <p><code>async.auto</code> saves the object to database, but it looses callback and processing stops. But does anybody have any idea <strong>why it happens?</strong></p> <p>The strangest thing is than i never had any problems neither with binding anything else inside of <code>async.auto</code> nor with binding <code>Mongoose</code> save method in any other context.</p> <p>I already looked into <code>async</code> code, but I still have no idea what's wrong. Now I'm planning to write an issue about it on github.</p> <p><strong>Added 20.09.12:</strong> I replaced <code>save</code> function with <code>validate</code> function and all worked great:</p> <pre><code>running all tests test 1 it works! test 2 it works! test 3 it works! test 4 it works! all works! </code></pre> <p>So the problem deeply connected to mongoose <code>save</code> function.</p> <p>It looks like <code>async.auto</code> breaks somewhere when it works with Mongoose method <code>save</code>. But I can't understand where and why.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USLeonid Beschastny
    1. USLeonid Beschastny
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POBinding Mongoose models save method inside async.auto (NodeJs)
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POBinding Mongoose models save method inside async.auto (NodeJs)
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POBinding Mongoose models save method inside async.auto (NodeJs)
      1. This table or related slice is empty.
      1. VTUpMod
    1. COCode looks OK to me. Did you check the generated JavaScript to see if it might be a CoffeeScript issue?
      singulars
      1. POBinding Mongoose models save method inside async.auto (NodeJs)
      1. USJohnnyHK
    2. COI did. It looks OK too.
      singulars
      1. POBinding Mongoose models save method inside async.auto (NodeJs)
      1. USLeonid Beschastny
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload