andreypopp/backbone.projections

backbone.projections is a set of projections for Backbone.Collection

backbone.projections's Issues

Add an Optional Offset to Capped Projections

It would be helpful if the capped projection could also take an additional option specifying how far to offset before returning items. This option would of course default to zero if not provided.

As an example, setting "cap" to 5 and not setting "skip" would have a projection that shows indices 0 - 4, inclusive. Setting "cap" to 5 and "skip" to 2 would show indices 2 - 6, inclusive.

It could be "skip", "offset", or whatever makes the most sense.

Thanks again.

Add Support For Environments Without `require()`

I like the idea behind your library, but the user must have require() defined with how it is currently written. There is a pattern for being able to support CommonJS, AMD, and plain-old globals called UMD, or Universal Module Definition. I'd submit a pull request, but I don't know CoffeeScript.

The UMD pattern with the broadest environment support:
https://github.com/umdjs/umd/blob/master/commonjsStrict.js

Override underlying functions for CRUD

Hello, I'm sorry if this doesn't make sense for this project or I am asking for a stupidity.

In my use case, I have some views that use a FooCollection or a Filtered FooCollection, the views doesn't know if it is filtered or if it is not.

So since my collections are passed around and as I said they don't know if is FooCollection or the filtered one, when I try to add a model to the collection and the collection is the filtered one, the model will be added to the filtered but not in the underlying.

Could be possible to override "add" for example so when you add a model to the filtered it will just pass the message to the underlying?

Or maybe I'm using this project wrong and if so, is it possible to have a filtered collection but actually filtering nothing? So I can change all my CRUD relying in col.underlying.

On the other hand, thanks for "global" versions and thanks for amazing work.