/
preview_recline.js
147 lines (127 loc) · 4.68 KB
/
preview_recline.js
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// recline preview module
this.ckan.module('reclinepreview', function (jQuery, _) {
return {
options: {
i18n: {
errorLoadingPreview: "Could not load view",
errorDataProxy: "DataProxy returned an error",
errorDataStore: "DataStore returned an error",
previewNotAvailableForDataType: "View not available for data type: "
},
site_url: "",
controlsClassName: "controls"
},
initialize: function () {
jQuery.proxyAll(this, /_on/);
this.options.resource = JSON.parse(this.options.resource);
this.options.resourceView = JSON.parse(this.options.resourceView);
this.el.ready(this._onReady);
// hack to make leaflet use a particular location to look for images
L.Icon.Default.imagePath = this.options.site_url + 'vendor/leaflet/0.4.4/images';
},
_onReady: function() {
var resourceData = this.options.resource,
resourceView = this.options.resourceView;
this.loadView(resourceData, resourceView);
},
loadView: function (resourceData, reclineView) {
var self = this;
function showError(msg){
msg = msg || _('error loading preview');
window.parent.ckan.pubsub.publish('data-viewer-error', msg);
}
resourceData.url = this.normalizeUrl(resourceData.url);
if (resourceData.formatNormalized === '') {
var tmp = resourceData.url.split('/');
tmp = tmp[tmp.length - 1];
tmp = tmp.split('?'); // query strings
tmp = tmp[0];
var ext = tmp.split('.');
if (ext.length > 1) {
resourceData.formatNormalized = ext[ext.length-1];
}
}
var errorMsg, dataset;
resourceData.backend = 'ckan';
resourceData.endpoint = jQuery('body').data('site-root') + 'api';
dataset = new recline.Model.Dataset(resourceData);
var query = new recline.Model.Query();
query.set({ size: reclineView.limit || 100 });
query.set({ from: reclineView.offset || 0 });
if (window.parent.ckan.views && window.parent.ckan.views.viewhelpers) {
$.each(window.parent.ckan.views.viewhelpers.filters.get(), function (field,values) {
query.addFilter({type: 'term', field: field, term: values});
});
}
dataset.query(query);
errorMsg = this.options.i18n.errorLoadingPreview + ': ' + this.options.i18n.errorDataStore;
dataset.fetch()
.done(function(dataset){
self.initializeView(dataset, reclineView);
})
.fail(function(error){
if (error.message) errorMsg += ' (' + error.message + ')';
showError(errorMsg);
});
},
initializeView: function (dataset, reclineView) {
var view,
state,
controls = [];
if(reclineView.view_type === "recline_graph") {
state = {
"graphType": reclineView.graph_type,
"group": reclineView.group,
"series": [reclineView.series]
};
view = new recline.View.Graph({model: dataset, state: state});
} else if(reclineView.view_type === "recline_map") {
state = {
geomField: null,
latField: null,
lonField: null,
autoZoom: Boolean(reclineView.auto_zoom),
cluster: Boolean(reclineView.cluster_markers)
};
if(reclineView.map_field_type === "geojson") {
state.geomField = reclineView.geojson_field;
} else {
state.latField = reclineView.latitude_field;
state.lonField = reclineView.longitude_field;
}
view = new recline.View.Map({model: dataset, state: state});
} else {
// default to Grid
view = new recline.View.SlickGrid({model: dataset});
controls = [
new recline.View.Pager({model: view.model.queryState}),
new recline.View.RecordCount({model: dataset}),
new recline.View.QueryEditor({model: view.model.queryState})
];
}
var newElements = $('<div />');
this._renderControls(newElements, controls, this.options.controlsClassName);
newElements.append(view.el);
$(this.el).html(newElements);
view.visible = true;
view.render();
if(reclineView.view_type === "recline_graph") {
view.redraw();
}
},
normalizeUrl: function (url) {
if (url.indexOf('https') === 0) {
return 'http' + url.slice(5);
} else {
return url;
}
},
_renderControls: function (el, controls, className) {
var controlsEl = $("<div class=\"clearfix " + className + "\" />");
for (var i = 0; i < controls.length; i++) {
controlsEl.append(controls[i].el);
}
$(el).append(controlsEl);
}
};
});