Using dgrid/dstore's REST store with a filter

Question

I would like to extend dstore/Rest to take a parameter that is used to filter the store. This article suggests this is the desired method to alter the query of a dstore: http://www.sitepen.com/blog/2014/11/17/introducing-dstore/

Example:

new MyExtendedRestStore({color: 'red'});

I would like the internals of MyExtendedRestStore to alter the GET query so that color would now be set in the filter so any refresh calls would stick to adding color=red to the query. If I understand this correctly, it should also force the dstore/Trackable mixin to obey the filter.

Ken Franqueiro Ken Franqueiro · Accepted Answer · 2014-12-09T04:34:38

In dgrid 0.4, instances using OnDemandList or Pagination can accept any collection - whether it be a root store, or a collection generated as a result of performing operations on that store. filter is one such operation.

In your case you state you want the grid to always show only red items, so you could very easily pass the grid a filtered collection, and no custom extension of Rest is required:

var TrackableRestStore = declare([ Rest, Trackable ]);
var store = new TrackableRestStore({ target: '...' });
var filteredCollection = store.filter({ color: 'red' });
var grid = new OnDemandGrid({
    collection: filteredCollection,
    columns: ...
});

This is also discussed towards the end of dgrid's Grids and Stores tutorial.

Using dgrid/dstore's REST store with a filter

1 Answers