Adding a provider

Provider requirements

• initialize should call its BaseProvider's method via BaseProvider.prototype.initialize.apply(this, arguments)
• To use a custom [fields collection](fields collections), create a class that extends basefields.js and set the fieldsCollection property to it in the provider
• url should handle URL construction based on the state of the collection (current filters, sorting, etc.)
• exportUrl should return the downloadable (CSV) version of the url
• getRecordCount should return a deferredpromise that passes the total number of records that exist when resolved
• getFields should return a promise that passes a collection (of instance BaseFields) when resolved

getFields should leverage this.fieldsCache, a hash of datasets and fields collections, to share fields collections between provider collections of the same dataset. To access the relevant fields collection, use this.fieldsCache[this.config.dataset].

Beyond that, you can use any other configuration options of Backbone Collections such as parse.

Installation

1. Add your provider to providers.js
2. Specify its use using the provider option in a card's config object