javascript - Backbone Sub-Collections & Resources -

i'm trying figure out collection/model system can handle retrieving data given context it's asked from, example:

available "root" resources:

/api/accounts /api/datacenters /api/networks /api/servers /api/volumes 

available "sub" resources:

/api/accounts/:id /api/accounts/:id/datacenters /api/accounts/:id/datacenters/:id/networks /api/accounts/:id/datacenters/:id/networks/:id/servers /api/accounts/:id/datacenters/:id/networks/:id/servers/:id/volumes /api/accounts/:id/networks /api/accounts/:id/networks/:id/servers /api/accounts/:id/networks/:id/servers/:id/volumes /api/accounts/:id/servers /api/accounts/:id/servers/:id/volumes /api/accounts/:id/volumes 

then, given collection/model system, able things like:

// first account var account = accountcollection.fetch().first()  // datacenters associated account account.get('datacenters')  // servers associated first datacenter's first network account.get('datacenters').first().get('networks').first().get('servers') 

not sure if makes sense, let me know if need clarify anything.

the biggest kicker why want able this, if request being made (ie account.get('datacenters').first().get('networks')) hasn't made (the networks of datacenter aren't loaded on client) made (or can fetch()d perhaps?)

any can give appreciated!

you can pass options fetch translated querystring params.

for example:

// first account var account = accountcollection.fetch({data: {pagesize: 1, sort: "date_desc"}}); 

would translate to:

/api/accounts?pagesize=1&sort=date_desc 

it not quite fluent dsl expressive , efficient since transmits objects requested rather filtering post fetch.

edit:

you can lazy load sub collections , use same fetch params technique filter down list query string criteria:

var account = backbone.model.extend({   initialize: function() {     this.datacenters = new datacenters;     this.datacenters.url = "/api/account/" + this.id + '/datacenters';   }   }); 

then account instance:

account.datacenters.fetch({data: {...}}); 

backbone docs on fetching nested models , collections