ArangoError 3103: failed to invoke module

[Gareth Cox]

Hi All

I'm trying to add a model to my Foxx App, namely 'PropertyTypes'.
I've created propertytype.js with a simple schema.
I've created a simple PropertyTypes.js in repositories.
I'm now trying to get the controllers working, but running into a weird problem.
(Also, I think the code may be wrong, but its copy/paste from my other app which works).
The collection does exist.
ArangoDB 2.6.2 on Mac OS X.
Controllers code bellow results in:

ArangoError 3103: failed to invoke module

'use strict';
var _ = require('underscore');
var joi = require('joi');
var Foxx = require('org/arangodb/foxx');
var ArangoError = require('org/arangodb').ArangoError;
var PropertyTypes = require('repositories/propertytypes');
var PropertyType = require('models/propertytype');
var controller = new Foxx.Controller(applicationContext);
var db = require('org/arangodb').db;

var PropertyTypeIdSchema = joi.string().required()
.description('The id of the Property Type')
.meta({allowMultiple: false});

/**
* Something wrong here 
* Deleting the code below allows the Foxx app to work.
* Also, looks weird, PropertyTypes = new PropertyTypes???
**/
var PropertyTypes = new PropertyTypes(
  applicationContext.collection('PropertyTypes'),
  {model: PropertyType}
);

/** Creates a new item.
 *
 * Creates a Property Type
 */
controller.post('/', function (req, res) {
        var aType = req.parameters.PropertyType;
        var newType = PropertyTypes.createOrSavePropertyType( aType.forClient() );
        res.json(newType);
})
.bodyParam('PropertyType', {
  description: 'The Property Type you want to create',
  type: PropertyType
})
.errorResponse(ArangoError, 404, 'The PropertyType could not be created');

/** Lists of all Attribute Types.
 *
 * This function simply returns the list of all Property Types.
 */
controller.get('/', function (req, res) {
  res.json(_.map(PropertyTypes.all(), function (model) {
    return model.forClient();
  }));
});

[Jan]

Hi,

"failed to invoke module" is normally thrown when a `require()` operation fails for whatever reason.
Can you try setting to application to dev mode in the web interface? That may bring up a stack trace when accessing a URL of the application.
Apart from that, the following part of the code looks suspicious, because you're redefining variable `PropertyTypes`:

var PropertyTypes = new PropertyTypes(
  applicationContext.collection('PropertyTypes'),
  {model: PropertyType}
);

Can yon try renaming the assigned variable to some other name, e.g. `propertyTypes` (with lower-case).
Furthermore, the assigned variable `PropertyTypes` is not used in the above controller code, so it may be even better to delete that section of code.

Finally, I think error reporting for Foxx apps has been somewhat improved in later versions of ArangoDB, so using 2.6.7 may provide better diagnostic information in development mode.

Best regards
Jan

[Gareth Cox]

Hi Jan

That suspicious code is automatically generated when I create a new Foxx application.
Perhaps we should look at the code generator when creating a new Foxx app?
In the mean time I will change it.
As for the full stack:

[ArangoError 3103: failed to invoke module
File: /usr/local/var/lib/arangodb-apps/_db/EVADB/eva/APP/controllers/PropertyTypes.js]
  at [object Object].Module.run (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/common/bootstrap/modules.js:1420:20)
  at ArangoApp.loadAppScript (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/arangoApp.js:452:24)
  at mountController (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:661:7)
  at /usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:630:9
  at Array.forEach (native)
  at routeApp (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:629:32)
  at Object.routes (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/manager.js:268:10)
  at foxxRouting (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:1054:74)
  at execute (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:1308:7)
  at Object.routeRequest (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:1329:3)
  at Function.actions.defineHttp.callback (/usr/local/Cellar/arangodb/2.6.2/share/arangodb/js/actions/api-system.js:58:15)

[Jan]

Hi Gareth,

I see. I remember there was some issue having to do with the Foxx code generator, and I think was fixed in an ArangoDB version later than 2.6.2.
Maybe it's worth updating to 2.6.7 then.

Best regards
Jan

...

[Gareth Cox]

Thanks Jan

I'm upgrading as we speak.
I will get back to you should my problem persist.

Regards
Dusty

[Gareth Cox]

Hi again Jan

I did the upgrade and you're correct. The error report was far more helpful, object is not a function and then syntax error in another file.
All fixed up and working!
Keep up the awesome work and thanks!

Kind Regards

Dusty

On Monday, 7 September 2015 14:12:44 UTC+2, Jan wrote: