127 lines
3.8 KiB
JavaScript
Executable File
127 lines
3.8 KiB
JavaScript
Executable File
jQuery(function($) {
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var qs = recline.View.parseQueryString(window.location.search);
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var dataest = null;
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if (qs.url) {
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dataset = new recline.Model.Dataset({
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id: 'my-dataset',
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url: qs.url,
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webstore_url: qs.url
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},
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qs.backend || 'elasticsearch'
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);
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} else {
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dataset = localDataset();
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}
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var app = new ExplorerApp({
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model: dataset,
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el: $('.recline-app')
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})
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Backbone.history.start();
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});
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var ExplorerApp = Backbone.View.extend({
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events: {
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'submit form.js-import-url': '_onImportURL',
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'submit .js-import-dialog-file form': '_onImportFile'
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},
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initialize: function() {
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this.explorer = null;
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this.explorerDiv = $('.data-explorer-here');
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this.createExplorer(this.model);
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},
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// make Explorer creation / initialization in a function so we can call it
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// again and again
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createExplorer: function(dataset) {
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// remove existing data explorer view
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var reload = false;
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if (this.dataExplorer) {
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this.dataExplorer.remove();
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reload = true;
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}
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this.dataExplorer = null;
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var $el = $('<div />');
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$el.appendTo(this.explorerDiv);
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this.dataExplorer = new recline.View.DataExplorer({
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el: $el
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, model: dataset
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});
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// HACK (a bit). Issue is that Backbone will not trigger the route
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// if you are already at that location so we have to make sure we genuinely switch
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if (reload) {
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this.dataExplorer.router.navigate('graph');
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this.dataExplorer.router.navigate('', true);
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}
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},
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// setup the loader menu in top bar
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setupLoader: function(callback) {
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// pre-populate webstore load form with an example url
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var demoUrl = 'http://thedatahub.org/api/data/b9aae52b-b082-4159-b46f-7bb9c158d013';
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$('form.js-import-url input[name="source"]').val(demoUrl);
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},
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_onImportURL: function(e) {
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e.preventDefault();
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$('.modal.js-import-dialog-url').modal('hide');
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var $form = $(e.target);
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var source = $form.find('input[name="source"]').val();
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var type = $form.find('select[name="backend_type"]').val();
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var dataset = new recline.Model.Dataset({
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id: 'my-dataset',
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url: source,
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webstore_url: source
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},
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type
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);
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this.createExplorer(dataset);
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},
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_onImportFile: function(e) {
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var self = this;
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e.preventDefault();
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var $form = $(e.target);
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$('.modal.js-import-dialog-file').modal('hide');
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var $file = $form.find('input[type="file"]')[0];
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var file = $file.files[0];
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var options = {
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separator : $form.find('input[name="separator"]').val(),
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encoding : $form.find('input[name="encoding"]').val()
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};
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recline.Backend.loadFromCSVFile(file, function(dataset) {
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self.createExplorer(dataset)
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},
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options
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);
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}
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});
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// provide a demonstration in memory dataset
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function localDataset() {
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var datasetId = 'test-dataset';
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var inData = {
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metadata: {
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title: 'My Test Dataset'
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, name: '1-my-test-dataset'
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, id: datasetId
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},
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fields: [{id: 'x'}, {id: 'y'}, {id: 'z'}, {id: 'country'}, {id: 'label'},{id: 'lat'},{id: 'lon'}],
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documents: [
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{id: 0, x: 1, y: 2, z: 3, country: 'DE', label: 'first', lat:52.56, lon:13.40}
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, {id: 1, x: 2, y: 4, z: 6, country: 'UK', label: 'second', lat:54.97, lon:-1.60}
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, {id: 2, x: 3, y: 6, z: 9, country: 'US', label: 'third', lat:40.00, lon:-75.5}
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, {id: 3, x: 4, y: 8, z: 12, country: 'UK', label: 'fourth', lat:57.27, lon:-6.20}
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, {id: 4, x: 5, y: 10, z: 15, country: 'UK', label: 'fifth', lat:51.58, lon:0}
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, {id: 5, x: 6, y: 12, z: 18, country: 'DE', label: 'sixth', lat:51.04, lon:7.9}
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]
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};
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var backend = new recline.Backend.Memory();
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backend.addDataset(inData);
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var dataset = new recline.Model.Dataset({id: datasetId}, backend);
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dataset.queryState.addFacet('country');
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return dataset;
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}
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