Passing an object into data property causes an error.

[gearboxdesign]

Hi all,

According to the docs you are able to pass in an object directly into the data attribute, each time I try I seem to get the error:

Warning: undefined is not a function...

Snippet:

data: {
    test: {
        foo: 'bar'
    }
}

Whilst usually I would just pass in a data file in, I have a very specific case in which I need to pass in an object on this occasion.

Any help would be much appreciated...

[doowb]

Hi @gearboxdesign, which version of grunt-assemble are you using?

[jonschlinkert]

also, is that data object in a json file? or is it in the grunt config? if it's in a file, what is the name of the file? If you're using it in data.json, then you might be loading that object onto data.data.test etc...

[gearboxdesign]

Hi guys thanks for the responses, I am currently using 0.4.0, it is in the grunt config, ok so a more complete example, do let me know if I'm going about this a ridiculous way!

So I need to generate a series of index pages which contain links to each files / directories which sit underneath them in a site structure, essentially exactly what a standard server generated index would do.

So I have already written something which, once the initial assemble process has ran to create the static site, scans the output directly creating a tree of paths, so now I recursively run through the tree creating a assemble subtask on the fly in which I want to pass a very specific data object, i.e. the current tree object which pertains to that index... i.e.

'use strict';

var getDirs = require('./getDirs.js'),
    path = require('path'),
    _ = require('lodash');

module.exports = function(grunt) {

    grunt.registerMultiTask('indexer', '.', function() {

        var options = this.options({
            baseDir: null,
            assembleOptions: null
        });

        if(!this.files.length) {
            grunt.log.warn('No files found.');
        }

        this.files.map(function (file) {
            return getDirs(file.src, options);
        }).forEach(_.partial(writeFiles, options));
    });

    function writeFiles (options, content) {

        if (content.paths) {

            grunt.config.set('assemble.indexer-' + content.id, {
                options: _.extend({
                    data: content
                }, options.assembleOptions),
                src: options.template,
                dest: path.join(options.baseDir, content.url, 'index.html')
            });

            grunt.task.run('assemble:indexer-' + content.id);

            content.paths.forEach(_.partial(writeFiles, options));
        }
    }
};

I do wonder a little if all this is necessary, but I was unable to achieve what I wanted with the pages option i.e. gathering a nested structure without extraneous use of helpers, for the above you can assume content.id is a unique id for the task.

the content argument is an object, but even if I try something simple in its place such as an empty object literal or one with test properties such as foo:'bar' I get the same error.

For reference the original default assemble config options are:

options: {
    deploy: grunt.option('deploy'),
    layoutdir: '<%= project.dirs.views.layouts %>',
    partials: [
        '<%= project.dirs.views.elements %>/**/*.hbs',
        '<%= project.dirs.views.components %>/**/*.hbs'
    ]),
    helpers: ['handlebars-helpers'],
    data: '<%= project.dirs.views.data %>/**/*.json'
}

Thanks...

[gearboxdesign]

Digging a little deeper it would seem that lib/assemble.js line 43 forces any data passed into an array which by the time it reaches tasks/assemble.js line 55 it is assumed the contents are file globs and passing the object through file.expand seems to cause the error... am I trying to do something it simply can't do here?

[burtyish]

I ran into the same problem.
@jonschlinkert, I think the problem is that we were both using version 0.4.0 (the latest version on npm), where this feature was added only in v0.4.14:

v0.4.14:
date: "2013-10-21"
changes:
- Adds support for plugins running once, before and after (thanks @adjohnson916).
- Adds pagination!
- Thanks to @xzyfer, options.data can now also directly accept an object of data.

See https://github.com/assemble/grunt-assemble/blob/master/CHANGELOG#L28

That's weird. Version 0.4.0 contains changelog for version 0.4.41? how can I get version 0.4.41?

[burtyish]

Oh, so 0.4.41 refers to a release of the original assemble library, right? I'm confused 😕

[jonschlinkert]

The changelog is wrong. this library is grunt-assemble. if you do npm install grunt-assemble, that will give you the latest version.

[burtyish]

Thanks for clearing that up

[jonschlinkert]

no prob sorry for the confusion