48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
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var Backbone = require('backbone');
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/**
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* Model representing the query string params for a "paged search" of a collection (matching the server-side APIs).
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*
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* @example usage
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* pagedSearch = new PaginationSearchModel({ … })
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* pagedSearch.fetch(collection) // => jqXHR, GET /collection/123?page=1&per_page20
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* pagedSearch.set({ page: 2, per_page: 10, q: 'test' });
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* pagedSearch.fetch(collection) // => GET /collection/123?page=2&per_page10&q=test
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*/
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module.exports = Backbone.Model.extend({
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defaults: {
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per_page: 20,
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page: 1,
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q: ''
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},
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initialize: function (attrs, opts) {
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if (!opts.collection) throw new Error('collection is required');
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if (!opts.collection.totalCount) throw new Error('collection requires to implement totalCount method');
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this.collection = opts.collection;
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this._initBinds();
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},
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_initBinds: function () {
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this.collection.on('sync', this._updateStateFetched, this);
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this.collection.on('error', this._updateStateError, this);
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},
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fetch: function () {
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this.trigger('fetching', this);
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return this.collection.fetch({
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data: this.attributes
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}, {reset: true});
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},
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_updateStateFetched: function () {
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this.trigger('fetched', this);
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},
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_updateStateError: function () {
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this.trigger('error', this);
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}
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});
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