1681 lines
53 KiB
JavaScript
1681 lines
53 KiB
JavaScript
// # Recline Backends
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//
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// Backends are connectors to backend data sources and stores
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//
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// Backends are implemented as Backbone models but this is just a
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// convenience (they do not save or load themselves from any remote
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// source)
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this.recline = this.recline || {};
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this.recline.Model = this.recline.Model || {};
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(function($, my) {
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my.backends = {};
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// ## Backbone.sync
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//
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// Override Backbone.sync to hand off to sync function in relevant backend
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Backbone.sync = function(method, model, options) {
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return my.backends[model.backendConfig.type].sync(method, model, options);
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}
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// ## wrapInTimeout
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//
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// Crude way to catch backend errors
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// Many of backends use JSONP and so will not get error messages and this is
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// a crude way to catch those errors.
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function wrapInTimeout(ourFunction) {
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var dfd = $.Deferred();
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var timeout = 5000;
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var timer = setTimeout(function() {
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dfd.reject({
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message: 'Request Error: Backend did not respond after ' + (timeout / 1000) + ' seconds'
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});
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}, timeout);
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ourFunction.done(function(arguments) {
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clearTimeout(timer);
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dfd.resolve(arguments);
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})
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.fail(function(arguments) {
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clearTimeout(timer);
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dfd.reject(arguments);
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})
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;
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return dfd.promise();
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}
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// ## BackendMemory - uses in-memory data
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//
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// To use you should:
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//
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// A. provide metadata as model data to the Dataset
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//
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// B. Set backendConfig on your dataset with attributes:
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//
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// - type: 'memory'
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// - data: hash with 2 keys:
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//
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// * headers: list of header names/labels
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// * rows: list of hashes, each hash being one row. A row *must* have an id attribute which is unique.
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//
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// Example of data:
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//
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// <pre>
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// {
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// headers: ['x', 'y', 'z']
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// , rows: [
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// {id: 0, x: 1, y: 2, z: 3}
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// , {id: 1, x: 2, y: 4, z: 6}
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// ]
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// };
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// </pre>
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my.BackendMemory = Backbone.Model.extend({
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sync: function(method, model, options) {
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var self = this;
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if (method === "read") {
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var dfd = $.Deferred();
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if (model.__type__ == 'Dataset') {
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var dataset = model;
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dataset.set({
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headers: dataset.backendConfig.data.headers
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});
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dataset.docCount = dataset.backendConfig.data.rows.length;
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dfd.resolve(dataset);
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}
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return dfd.promise();
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} else if (method === 'update') {
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var dfd = $.Deferred();
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if (model.__type__ == 'Document') {
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_.each(model.backendConfig.data.rows, function(row, idx) {
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if(row.id === model.id) {
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model.backendConfig.data.rows[idx] = model.toJSON();
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}
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});
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dfd.resolve(model);
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}
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return dfd.promise();
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} else if (method === 'delete') {
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var dfd = $.Deferred();
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if (model.__type__ == 'Document') {
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model.backendConfig.data.rows = _.reject(model.backendConfig.data.rows, function(row) {
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return (row.id === model.id);
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});
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dfd.resolve(model);
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}
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return dfd.promise();
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} else {
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alert('Not supported: sync on BackendMemory with method ' + method + ' and model ' + model);
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}
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},
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query: function(model, queryObj) {
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var numRows = queryObj.size;
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var start = queryObj.offset;
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var dfd = $.Deferred();
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results = model.backendConfig.data.rows;
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// not complete sorting!
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_.each(queryObj.sort, function(item) {
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results = _.sortBy(results, function(row) {
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var _out = row[item[0]];
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return (item[1] == 'asc') ? _out : -1*_out;
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});
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});
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var results = results.slice(start, start+numRows);
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dfd.resolve(results);
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return dfd.promise();
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}
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});
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my.backends['memory'] = new my.BackendMemory();
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// ## BackendWebstore
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//
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// Connecting to [Webstores](http://github.com/okfn/webstore)
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//
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// To use this backend set backendConfig on your Dataset as:
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//
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// <pre>
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// {
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// 'type': 'webstore',
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// 'url': url to relevant Webstore table
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// }
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// </pre>
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my.BackendWebstore = Backbone.Model.extend({
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sync: function(method, model, options) {
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if (method === "read") {
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if (model.__type__ == 'Dataset') {
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var dataset = model;
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var base = dataset.backendConfig.url;
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var schemaUrl = base + '/schema.json';
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var jqxhr = $.ajax({
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url: schemaUrl,
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dataType: 'jsonp',
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jsonp: '_callback'
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});
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var dfd = $.Deferred();
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wrapInTimeout(jqxhr).done(function(schema) {
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headers = _.map(schema.data, function(item) {
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return item.name;
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});
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dataset.set({
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headers: headers
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});
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dataset.docCount = schema.count;
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dfd.resolve(dataset, jqxhr);
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})
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.fail(function(arguments) {
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dfd.reject(arguments);
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});
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return dfd.promise();
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}
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}
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},
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query: function(model, queryObj) {
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var base = model.backendConfig.url;
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var data = {
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_limit: queryObj.size
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, _offset: queryObj.offset
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};
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var jqxhr = $.ajax({
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url: base + '.json',
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data: data,
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dataType: 'jsonp',
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jsonp: '_callback',
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cache: true
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});
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var dfd = $.Deferred();
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jqxhr.done(function(results) {
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dfd.resolve(results.data);
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});
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return dfd.promise();
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}
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});
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my.backends['webstore'] = new my.BackendWebstore();
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// ## BackendDataProxy
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//
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// For connecting to [DataProxy-s](http://github.com/okfn/dataproxy).
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//
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// Set a Dataset to use this backend:
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//
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// dataset.backendConfig = {
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// // required
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// url: {url-of-data-to-proxy},
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// format: csv | xls,
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// }
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//
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// When initializing the DataProxy backend you can set the following attributes:
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//
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// * dataproxy: {url-to-proxy} (optional). Defaults to http://jsonpdataproxy.appspot.com
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//
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// Note that this is a **read-only** backend.
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my.BackendDataProxy = Backbone.Model.extend({
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defaults: {
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dataproxy: 'http://jsonpdataproxy.appspot.com'
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},
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sync: function(method, model, options) {
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if (method === "read") {
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if (model.__type__ == 'Dataset') {
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var dataset = model;
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var base = my.backends['dataproxy'].get('dataproxy');
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// TODO: should we cache for extra efficiency
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var data = {
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url: dataset.backendConfig.url
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, 'max-results': 1
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, type: dataset.backendConfig.format
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};
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var jqxhr = $.ajax({
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url: base
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, data: data
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, dataType: 'jsonp'
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});
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var dfd = $.Deferred();
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wrapInTimeout(jqxhr).done(function(results) {
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dataset.set({
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headers: results.fields
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});
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dfd.resolve(dataset, jqxhr);
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})
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.fail(function(arguments) {
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dfd.reject(arguments);
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});
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return dfd.promise();
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}
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} else {
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alert('This backend only supports read operations');
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}
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},
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query: function(dataset, queryObj) {
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var base = my.backends['dataproxy'].get('dataproxy');
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var data = {
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url: dataset.backendConfig.url
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, 'max-results': queryObj.size
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, type: dataset.backendConfig.format
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};
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var jqxhr = $.ajax({
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url: base
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, data: data
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, dataType: 'jsonp'
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});
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var dfd = $.Deferred();
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jqxhr.done(function(results) {
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var _out = _.map(results.data, function(row) {
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var tmp = {};
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_.each(results.fields, function(key, idx) {
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tmp[key] = row[idx];
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});
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return tmp;
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});
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dfd.resolve(_out);
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});
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return dfd.promise();
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}
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});
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my.backends['dataproxy'] = new my.BackendDataProxy();
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// ## Google spreadsheet backend
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//
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// Connect to Google Docs spreadsheet. For write operations
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my.BackendGDoc = Backbone.Model.extend({
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sync: function(method, model, options) {
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if (method === "read") {
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var dfd = $.Deferred();
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var dataset = model;
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$.getJSON(model.backendConfig.url, function(d) {
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result = my.backends['gdocs'].gdocsToJavascript(d);
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model.set({'headers': result.header});
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// cache data onto dataset (we have loaded whole gdoc it seems!)
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model._dataCache = result.data;
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dfd.resolve(model);
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})
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return dfd.promise(); }
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},
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query: function(dataset, queryObj) {
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var dfd = $.Deferred();
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var fields = dataset.get('headers');
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// zip the field headers with the data rows to produce js objs
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// TODO: factor this out as a common method with other backends
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var objs = _.map(dataset._dataCache, function (d) {
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var obj = {};
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_.each(_.zip(fields, d), function (x) { obj[x[0]] = x[1]; })
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return obj;
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});
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dfd.resolve(objs);
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return dfd;
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},
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gdocsToJavascript: function(gdocsSpreadsheet) {
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/*
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:options: (optional) optional argument dictionary:
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columnsToUse: list of columns to use (specified by header names)
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colTypes: dictionary (with column names as keys) specifying types (e.g. range, percent for use in conversion).
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:return: tabular data object (hash with keys: header and data).
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Issues: seems google docs return columns in rows in random order and not even sure whether consistent across rows.
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*/
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var options = {};
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if (arguments.length > 1) {
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options = arguments[1];
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}
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var results = {
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'header': [],
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'data': []
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};
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// default is no special info on type of columns
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var colTypes = {};
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if (options.colTypes) {
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colTypes = options.colTypes;
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}
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// either extract column headings from spreadsheet directly, or used supplied ones
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if (options.columnsToUse) {
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// columns set to subset supplied
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results.header = options.columnsToUse;
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} else {
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// set columns to use to be all available
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if (gdocsSpreadsheet.feed.entry.length > 0) {
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for (var k in gdocsSpreadsheet.feed.entry[0]) {
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if (k.substr(0, 3) == 'gsx') {
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var col = k.substr(4)
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results.header.push(col);
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}
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}
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}
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}
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// converts non numberical values that should be numerical (22.3%[string] -> 0.223[float])
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var rep = /^([\d\.\-]+)\%$/;
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$.each(gdocsSpreadsheet.feed.entry, function (i, entry) {
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var row = [];
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for (var k in results.header) {
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var col = results.header[k];
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var _keyname = 'gsx$' + col;
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var value = entry[_keyname]['$t'];
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// if labelled as % and value contains %, convert
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if (colTypes[col] == 'percent') {
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if (rep.test(value)) {
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var value2 = rep.exec(value);
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var value3 = parseFloat(value2);
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value = value3 / 100;
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}
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}
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row.push(value);
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}
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results.data.push(row);
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});
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return results;
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}
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});
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my.backends['gdocs'] = new my.BackendGDoc();
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}(jQuery, this.recline.Model));
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// importScripts('lib/underscore.js');
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onmessage = function(message) {
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function parseCSV(rawCSV) {
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var patterns = new RegExp((
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// Delimiters.
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"(\\,|\\r?\\n|\\r|^)" +
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// Quoted fields.
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"(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
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// Standard fields.
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"([^\"\\,\\r\\n]*))"
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), "gi");
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var rows = [[]], matches = null;
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while (matches = patterns.exec(rawCSV)) {
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var delimiter = matches[1];
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if (delimiter.length && (delimiter !== ",")) rows.push([]);
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if (matches[2]) {
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var value = matches[2].replace(new RegExp("\"\"", "g"), "\"");
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} else {
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var value = matches[3];
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}
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rows[rows.length - 1].push(value);
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}
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if(_.isEqual(rows[rows.length -1], [""])) rows.pop();
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var docs = [];
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var headers = _.first(rows);
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_.each(_.rest(rows), function(row, rowIDX) {
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var doc = {};
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_.each(row, function(cell, idx) {
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doc[headers[idx]] = cell;
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})
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docs.push(doc);
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})
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return docs;
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}
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var docs = parseCSV(message.data.data);
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var req = new XMLHttpRequest();
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req.onprogress = req.upload.onprogress = function(e) {
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if(e.lengthComputable) postMessage({ percent: (e.loaded / e.total) * 100 });
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};
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req.onreadystatechange = function() { if (req.readyState == 4) postMessage({done: true, response: req.responseText}) };
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req.open('POST', message.data.url);
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req.setRequestHeader('Content-Type', 'application/json');
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req.send(JSON.stringify({docs: docs}));
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};
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// adapted from https://github.com/harthur/costco. heather rules
|
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var costco = function() {
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function evalFunction(funcString) {
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try {
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eval("var editFunc = " + funcString);
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} catch(e) {
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return {errorMessage: e+""};
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}
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return editFunc;
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}
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function previewTransform(docs, editFunc, currentColumn) {
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var preview = [];
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var updated = mapDocs($.extend(true, {}, docs), editFunc);
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for (var i = 0; i < updated.docs.length; i++) {
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var before = docs[i]
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, after = updated.docs[i]
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;
|
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if (!after) after = {};
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if (currentColumn) {
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preview.push({before: JSON.stringify(before[currentColumn]), after: JSON.stringify(after[currentColumn])});
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} else {
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preview.push({before: JSON.stringify(before), after: JSON.stringify(after)});
|
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}
|
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}
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return preview;
|
||
}
|
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function mapDocs(docs, editFunc) {
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var edited = []
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, deleted = []
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, failed = []
|
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;
|
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|
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var updatedDocs = _.map(docs, function(doc) {
|
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try {
|
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var updated = editFunc(_.clone(doc));
|
||
} catch(e) {
|
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failed.push(doc);
|
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return;
|
||
}
|
||
if(updated === null) {
|
||
updated = {_deleted: true};
|
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edited.push(updated);
|
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deleted.push(doc);
|
||
}
|
||
else if(updated && !_.isEqual(updated, doc)) {
|
||
edited.push(updated);
|
||
}
|
||
return updated;
|
||
});
|
||
|
||
return {
|
||
edited: edited,
|
||
docs: updatedDocs,
|
||
deleted: deleted,
|
||
failed: failed
|
||
};
|
||
}
|
||
|
||
return {
|
||
evalFunction: evalFunction,
|
||
previewTransform: previewTransform,
|
||
mapDocs: mapDocs
|
||
};
|
||
}();
|
||
// # Recline Backbone Models
|
||
this.recline = this.recline || {};
|
||
this.recline.Model = this.recline.Model || {};
|
||
|
||
(function($, my) {
|
||
// ## A Dataset model
|
||
//
|
||
// Other than standard list of Backbone methods it has two important attributes:
|
||
//
|
||
// * currentDocuments: a DocumentList containing the Documents we have currently loaded for viewing (you update currentDocuments by calling getRows)
|
||
// * docCount: total number of documents in this dataset (obtained on a fetch for this Dataset)
|
||
my.Dataset = Backbone.Model.extend({
|
||
__type__: 'Dataset',
|
||
initialize: function(options) {
|
||
this.currentDocuments = new my.DocumentList();
|
||
this.docCount = null;
|
||
this.backend = null;
|
||
this.defaultQuery = {
|
||
size: 100
|
||
, offset: 0
|
||
};
|
||
// this.queryState = {};
|
||
},
|
||
|
||
// ### getDocuments
|
||
//
|
||
// AJAX method with promise API to get rows (documents) from the backend.
|
||
//
|
||
// Resulting DocumentList are used to reset this.currentDocuments and are
|
||
// also returned.
|
||
//
|
||
// :param numRows: passed onto backend getDocuments.
|
||
// :param start: passed onto backend getDocuments.
|
||
//
|
||
// this does not fit very well with Backbone setup. Backbone really expects you to know the ids of objects your are fetching (which you do in classic RESTful ajax-y world). But this paradigm does not fill well with data set up we have here.
|
||
// This also illustrates the limitations of separating the Dataset and the Backend
|
||
query: function(queryObj) {
|
||
var self = this;
|
||
var backend = my.backends[this.backendConfig.type];
|
||
this.queryState = queryObj || this.defaultQuery;
|
||
this.queryState = _.extend({size: 100, offset: 0}, this.queryState);
|
||
var dfd = $.Deferred();
|
||
backend.query(this, this.queryState).done(function(rows) {
|
||
var docs = _.map(rows, function(row) {
|
||
var _doc = new my.Document(row);
|
||
_doc.backendConfig = self.backendConfig;
|
||
_doc.backend = backend;
|
||
return _doc;
|
||
});
|
||
self.currentDocuments.reset(docs);
|
||
dfd.resolve(self.currentDocuments);
|
||
})
|
||
.fail(function(arguments) {
|
||
dfd.reject(arguments);
|
||
});
|
||
return dfd.promise();
|
||
},
|
||
|
||
toTemplateJSON: function() {
|
||
var data = this.toJSON();
|
||
data.docCount = this.docCount;
|
||
return data;
|
||
}
|
||
});
|
||
|
||
// ## A Document (aka Row)
|
||
//
|
||
// A single entry or row in the dataset
|
||
my.Document = Backbone.Model.extend({
|
||
__type__: 'Document'
|
||
});
|
||
|
||
// ## A Backbone collection of Documents
|
||
my.DocumentList = Backbone.Collection.extend({
|
||
__type__: 'DocumentList',
|
||
model: my.Document
|
||
});
|
||
}(jQuery, this.recline.Model));
|
||
|
||
var util = function() {
|
||
var templates = {
|
||
transformActions: '<li><a data-action="transform" class="menuAction" href="JavaScript:void(0);">Global transform...</a></li>'
|
||
, columnActions: ' \
|
||
<li class="write-op"><a data-action="bulkEdit" class="menuAction" href="JavaScript:void(0);">Transform...</a></li> \
|
||
<li class="write-op"><a data-action="deleteColumn" class="menuAction" href="JavaScript:void(0);">Delete this column</a></li> \
|
||
<li><a data-action="sortAsc" class="menuAction" href="JavaScript:void(0);">Sort ascending</a></li> \
|
||
<li><a data-action="sortDesc" class="menuAction" href="JavaScript:void(0);">Sort descending</a></li> \
|
||
<li><a data-action="hideColumn" class="menuAction" href="JavaScript:void(0);">Hide this column</a></li> \
|
||
'
|
||
, rowActions: '<li><a data-action="deleteRow" class="menuAction write-op" href="JavaScript:void(0);">Delete this row</a></li>'
|
||
, rootActions: ' \
|
||
{{#columns}} \
|
||
<li><a data-action="showColumn" data-column="{{.}}" class="menuAction" href="JavaScript:void(0);">Add column: {{.}}</a></li> \
|
||
{{/columns}}'
|
||
, cellEditor: ' \
|
||
<div class="menu-container data-table-cell-editor"> \
|
||
<textarea class="data-table-cell-editor-editor" bind="textarea">{{value}}</textarea> \
|
||
<div id="data-table-cell-editor-actions"> \
|
||
<div class="data-table-cell-editor-action"> \
|
||
<button class="okButton btn primary">Update</button> \
|
||
<button class="cancelButton btn danger">Cancel</button> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
'
|
||
, editPreview: ' \
|
||
<div class="expression-preview-table-wrapper"> \
|
||
<table> \
|
||
<thead> \
|
||
<tr> \
|
||
<th class="expression-preview-heading"> \
|
||
before \
|
||
</th> \
|
||
<th class="expression-preview-heading"> \
|
||
after \
|
||
</th> \
|
||
</tr> \
|
||
</thead> \
|
||
<tbody> \
|
||
{{#rows}} \
|
||
<tr> \
|
||
<td class="expression-preview-value"> \
|
||
{{before}} \
|
||
</td> \
|
||
<td class="expression-preview-value"> \
|
||
{{after}} \
|
||
</td> \
|
||
</tr> \
|
||
{{/rows}} \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
'
|
||
};
|
||
|
||
$.fn.serializeObject = function() {
|
||
var o = {};
|
||
var a = this.serializeArray();
|
||
$.each(a, function() {
|
||
if (o[this.name]) {
|
||
if (!o[this.name].push) {
|
||
o[this.name] = [o[this.name]];
|
||
}
|
||
o[this.name].push(this.value || '');
|
||
} else {
|
||
o[this.name] = this.value || '';
|
||
}
|
||
});
|
||
return o;
|
||
};
|
||
|
||
function registerEmitter() {
|
||
var Emitter = function(obj) {
|
||
this.emit = function(obj, channel) {
|
||
if (!channel) var channel = 'data';
|
||
this.trigger(channel, obj);
|
||
};
|
||
};
|
||
MicroEvent.mixin(Emitter);
|
||
return new Emitter();
|
||
}
|
||
|
||
function listenFor(keys) {
|
||
var shortcuts = { // from jquery.hotkeys.js
|
||
8: "backspace", 9: "tab", 13: "return", 16: "shift", 17: "ctrl", 18: "alt", 19: "pause",
|
||
20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34: "pagedown", 35: "end", 36: "home",
|
||
37: "left", 38: "up", 39: "right", 40: "down", 45: "insert", 46: "del",
|
||
96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5", 102: "6", 103: "7",
|
||
104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: ".", 111 : "/",
|
||
112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 117: "f6", 118: "f7", 119: "f8",
|
||
120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 191: "/", 224: "meta"
|
||
}
|
||
window.addEventListener("keyup", function(e) {
|
||
var pressed = shortcuts[e.keyCode];
|
||
if(_.include(keys, pressed)) app.emitter.emit("keyup", pressed);
|
||
}, false);
|
||
}
|
||
|
||
function observeExit(elem, callback) {
|
||
var cancelButton = elem.find('.cancelButton');
|
||
// TODO: remove (commented out as part of Backbon-i-fication
|
||
// app.emitter.on('esc', function() {
|
||
// cancelButton.click();
|
||
// app.emitter.clear('esc');
|
||
// });
|
||
cancelButton.click(callback);
|
||
}
|
||
|
||
function show( thing ) {
|
||
$('.' + thing ).show();
|
||
$('.' + thing + '-overlay').show();
|
||
}
|
||
|
||
function hide( thing ) {
|
||
$('.' + thing ).hide();
|
||
$('.' + thing + '-overlay').hide();
|
||
// TODO: remove or replace (commented out as part of Backbon-i-fication
|
||
// if (thing === "dialog") app.emitter.clear('esc'); // todo more elegant solution
|
||
}
|
||
|
||
function position( thing, elem, offset ) {
|
||
var position = $(elem.target).position();
|
||
if (offset) {
|
||
if (offset.top) position.top += offset.top;
|
||
if (offset.left) position.left += offset.left;
|
||
}
|
||
$('.' + thing + '-overlay').show().click(function(e) {
|
||
$(e.target).hide();
|
||
$('.' + thing).hide();
|
||
});
|
||
$('.' + thing).show().css({top: position.top + $(elem.target).height(), left: position.left});
|
||
}
|
||
|
||
function render( template, target, options ) {
|
||
if ( !options ) options = {data: {}};
|
||
if ( !options.data ) options = {data: options};
|
||
var html = $.mustache( templates[template], options.data );
|
||
if (target instanceof jQuery) {
|
||
var targetDom = target;
|
||
} else {
|
||
var targetDom = $( "." + target + ":first" );
|
||
}
|
||
if( options.append ) {
|
||
targetDom.append( html );
|
||
} else {
|
||
targetDom.html( html );
|
||
}
|
||
// TODO: remove (commented out as part of Backbon-i-fication
|
||
// if (template in app.after) app.after[template]();
|
||
}
|
||
|
||
return {
|
||
registerEmitter: registerEmitter,
|
||
listenFor: listenFor,
|
||
show: show,
|
||
hide: hide,
|
||
position: position,
|
||
render: render,
|
||
observeExit: observeExit
|
||
};
|
||
}();
|
||
this.recline = this.recline || {};
|
||
|
||
// Views module following classic module pattern
|
||
recline.View = function($) {
|
||
|
||
var my = {};
|
||
|
||
// Parse a URL query string (?xyz=abc...) into a dictionary.
|
||
function parseQueryString(q) {
|
||
var urlParams = {},
|
||
e, d = function (s) {
|
||
return unescape(s.replace(/\+/g, " "));
|
||
},
|
||
r = /([^&=]+)=?([^&]*)/g;
|
||
|
||
if (q && q.length && q[0] === '?') {
|
||
q = q.slice(1);
|
||
}
|
||
while (e = r.exec(q)) {
|
||
// TODO: have values be array as query string allow repetition of keys
|
||
urlParams[d(e[1])] = d(e[2]);
|
||
}
|
||
return urlParams;
|
||
}
|
||
|
||
// ## notify
|
||
//
|
||
// Create a notification (a div.alert-message in div.alert-messsages) using provide messages and options. Options are:
|
||
//
|
||
// * category: warning (default), success, error
|
||
// * persist: if true alert is persistent, o/w hidden after 3s (default = false)
|
||
// * loader: if true show loading spinner
|
||
my.notify = function(message, options) {
|
||
if (!options) var options = {};
|
||
var tmplData = _.extend({
|
||
msg: message,
|
||
category: 'warning'
|
||
},
|
||
options);
|
||
var _template = ' \
|
||
<div class="alert-message {{category}} fade in" data-alert="alert"><a class="close" href="#">×</a> \
|
||
<p>{{msg}} \
|
||
{{#loader}} \
|
||
<img src="images/small-spinner.gif" class="notification-loader"> \
|
||
{{/loader}} \
|
||
</p> \
|
||
</div>';
|
||
var _templated = $.mustache(_template, tmplData);
|
||
_templated = $(_templated).appendTo($('.data-explorer .alert-messages'));
|
||
if (!options.persist) {
|
||
setTimeout(function() {
|
||
$(_templated).fadeOut(1000, function() {
|
||
$(this).remove();
|
||
});
|
||
}, 1000);
|
||
}
|
||
}
|
||
|
||
// ## clearNotifications
|
||
//
|
||
// Clear all existing notifications
|
||
my.clearNotifications = function() {
|
||
var $notifications = $('.data-explorer .alert-message');
|
||
$notifications.remove();
|
||
}
|
||
|
||
// The primary view for the entire application.
|
||
//
|
||
// It should be initialized with a recline.Model.Dataset object and an existing
|
||
// dom element to attach to (the existing DOM element is important for
|
||
// rendering of FlotGraph subview).
|
||
//
|
||
// To pass in configuration options use the config key in initialization hash
|
||
// e.g.
|
||
//
|
||
// var explorer = new DataExplorer({
|
||
// config: {...}
|
||
// })
|
||
//
|
||
// Config options:
|
||
//
|
||
// * displayCount: how many documents to display initially (default: 10)
|
||
// * readOnly: true/false (default: false) value indicating whether to
|
||
// operate in read-only mode (hiding all editing options).
|
||
//
|
||
// All other views as contained in this one.
|
||
my.DataExplorer = Backbone.View.extend({
|
||
template: ' \
|
||
<div class="data-explorer"> \
|
||
<div class="alert-messages"></div> \
|
||
\
|
||
<div class="header"> \
|
||
<ul class="navigation"> \
|
||
<li class="active"><a href="#grid" class="btn">Grid</a> \
|
||
<li><a href="#graph" class="btn">Graph</a></li> \
|
||
</ul> \
|
||
<div class="pagination"> \
|
||
<form class="display-count"> \
|
||
Showing 0 to <input name="displayCount" type="text" value="{{displayCount}}" title="Edit and hit enter to change the number of rows displayed" /> of <span class="doc-count">{{docCount}}</span> \
|
||
</form> \
|
||
</div> \
|
||
</div> \
|
||
<div class="data-view-container"></div> \
|
||
<div class="dialog-overlay" style="display: none; z-index: 101; "> </div> \
|
||
<div class="dialog ui-draggable" style="display: none; z-index: 102; top: 101px; "> \
|
||
<div class="dialog-frame" style="width: 700px; visibility: visible; "> \
|
||
<div class="dialog-content dialog-border"></div> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
',
|
||
|
||
events: {
|
||
'submit form.display-count': 'onDisplayCountUpdate'
|
||
},
|
||
|
||
initialize: function(options) {
|
||
var self = this;
|
||
this.el = $(this.el);
|
||
this.config = _.extend({
|
||
displayCount: 50
|
||
, readOnly: false
|
||
},
|
||
options.config);
|
||
if (this.config.readOnly) {
|
||
this.setReadOnly();
|
||
}
|
||
// Hash of 'page' views (i.e. those for whole page) keyed by page name
|
||
this.pageViews = {
|
||
grid: new my.DataTable({
|
||
model: this.model
|
||
})
|
||
, graph: new my.FlotGraph({
|
||
model: this.model
|
||
})
|
||
};
|
||
// this must be called after pageViews are created
|
||
this.render();
|
||
|
||
this.router = new Backbone.Router();
|
||
this.setupRouting();
|
||
|
||
// retrieve basic data like headers etc
|
||
// note this.model and dataset returned are the same
|
||
this.model.fetch()
|
||
.done(function(dataset) {
|
||
self.el.find('.doc-count').text(self.model.docCount || 'Unknown');
|
||
self.query();
|
||
})
|
||
.fail(function(error) {
|
||
my.notify(error.message, {category: 'error', persist: true});
|
||
});
|
||
},
|
||
|
||
query: function() {
|
||
this.config.displayCount = parseInt(this.el.find('input[name="displayCount"]').val());
|
||
var queryObj = {
|
||
size: this.config.displayCount
|
||
};
|
||
my.notify('Loading data', {loader: true});
|
||
this.model.query(queryObj)
|
||
.done(function() {
|
||
my.clearNotifications();
|
||
my.notify('Data loaded', {category: 'success'});
|
||
})
|
||
.fail(function(error) {
|
||
my.clearNotifications();
|
||
my.notify(error.message, {category: 'error', persist: true});
|
||
});
|
||
},
|
||
|
||
onDisplayCountUpdate: function(e) {
|
||
e.preventDefault();
|
||
this.query();
|
||
},
|
||
|
||
setReadOnly: function() {
|
||
this.el.addClass('read-only');
|
||
},
|
||
|
||
render: function() {
|
||
var tmplData = this.model.toTemplateJSON();
|
||
tmplData.displayCount = this.config.displayCount;
|
||
var template = $.mustache(this.template, tmplData);
|
||
$(this.el).html(template);
|
||
var $dataViewContainer = this.el.find('.data-view-container');
|
||
_.each(this.pageViews, function(view, pageName) {
|
||
$dataViewContainer.append(view.el)
|
||
});
|
||
},
|
||
|
||
setupRouting: function() {
|
||
var self = this;
|
||
this.router.route('', 'grid', function() {
|
||
self.updateNav('grid');
|
||
});
|
||
this.router.route(/grid(\?.*)?/, 'view', function(queryString) {
|
||
self.updateNav('grid', queryString);
|
||
});
|
||
this.router.route(/graph(\?.*)?/, 'graph', function(queryString) {
|
||
self.updateNav('graph', queryString);
|
||
// we have to call here due to fact plot may not have been able to draw
|
||
// if it was hidden until now - see comments in FlotGraph.redraw
|
||
qsParsed = parseQueryString(queryString);
|
||
if ('graph' in qsParsed) {
|
||
var chartConfig = JSON.parse(qsParsed['graph']);
|
||
_.extend(self.pageViews['graph'].chartConfig, chartConfig);
|
||
}
|
||
self.pageViews['graph'].redraw();
|
||
});
|
||
},
|
||
|
||
updateNav: function(pageName, queryString) {
|
||
this.el.find('.navigation li').removeClass('active');
|
||
var $el = this.el.find('.navigation li a[href=#' + pageName + ']');
|
||
$el.parent().addClass('active');
|
||
// show the specific page
|
||
_.each(this.pageViews, function(view, pageViewName) {
|
||
if (pageViewName === pageName) {
|
||
view.el.show();
|
||
} else {
|
||
view.el.hide();
|
||
}
|
||
});
|
||
}
|
||
});
|
||
|
||
// DataTable provides a tabular view on a Dataset.
|
||
//
|
||
// Initialize it with a recline.Dataset object.
|
||
my.DataTable = Backbone.View.extend({
|
||
tagName: "div",
|
||
className: "data-table-container",
|
||
|
||
initialize: function() {
|
||
var self = this;
|
||
this.el = $(this.el);
|
||
_.bindAll(this, 'render');
|
||
this.model.currentDocuments.bind('add', this.render);
|
||
this.model.currentDocuments.bind('reset', this.render);
|
||
this.model.currentDocuments.bind('remove', this.render);
|
||
this.state = {};
|
||
this.hiddenHeaders = [];
|
||
},
|
||
|
||
events: {
|
||
'click .column-header-menu': 'onColumnHeaderClick'
|
||
, 'click .row-header-menu': 'onRowHeaderClick'
|
||
, 'click .root-header-menu': 'onRootHeaderClick'
|
||
, 'click .data-table-menu li a': 'onMenuClick'
|
||
},
|
||
|
||
// TODO: delete or re-enable (currently this code is not used from anywhere except deprecated or disabled methods (see above)).
|
||
// showDialog: function(template, data) {
|
||
// if (!data) data = {};
|
||
// util.show('dialog');
|
||
// util.render(template, 'dialog-content', data);
|
||
// util.observeExit($('.dialog-content'), function() {
|
||
// util.hide('dialog');
|
||
// })
|
||
// $('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
|
||
// },
|
||
|
||
|
||
// ======================================================
|
||
// Column and row menus
|
||
|
||
onColumnHeaderClick: function(e) {
|
||
this.state.currentColumn = $(e.target).siblings().text();
|
||
util.position('data-table-menu', e);
|
||
util.render('columnActions', 'data-table-menu');
|
||
},
|
||
|
||
onRowHeaderClick: function(e) {
|
||
this.state.currentRow = $(e.target).parents('tr:first').attr('data-id');
|
||
util.position('data-table-menu', e);
|
||
util.render('rowActions', 'data-table-menu');
|
||
},
|
||
|
||
onRootHeaderClick: function(e) {
|
||
util.position('data-table-menu', e);
|
||
util.render('rootActions', 'data-table-menu', {'columns': this.hiddenHeaders});
|
||
},
|
||
|
||
onMenuClick: function(e) {
|
||
var self = this;
|
||
e.preventDefault();
|
||
var actions = {
|
||
bulkEdit: function() { self.showTransformColumnDialog('bulkEdit', {name: self.state.currentColumn}) },
|
||
transform: function() { self.showTransformDialog('transform') },
|
||
sortAsc: function() { self.setColumnSort('asc') },
|
||
sortDesc: function() { self.setColumnSort('desc') },
|
||
hideColumn: function() { self.hideColumn() },
|
||
showColumn: function() { self.showColumn(e) },
|
||
// TODO: Delete or re-implement ...
|
||
csv: function() { window.location.href = app.csvUrl },
|
||
json: function() { window.location.href = "_rewrite/api/json" },
|
||
urlImport: function() { showDialog('urlImport') },
|
||
pasteImport: function() { showDialog('pasteImport') },
|
||
uploadImport: function() { showDialog('uploadImport') },
|
||
// END TODO
|
||
deleteColumn: function() {
|
||
var msg = "Are you sure? This will delete '" + self.state.currentColumn + "' from all documents.";
|
||
// TODO:
|
||
alert('This function needs to be re-implemented');
|
||
return;
|
||
if (confirm(msg)) costco.deleteColumn(self.state.currentColumn);
|
||
},
|
||
deleteRow: function() {
|
||
var doc = _.find(self.model.currentDocuments.models, function(doc) {
|
||
// important this is == as the currentRow will be string (as comes
|
||
// from DOM) while id may be int
|
||
return doc.id == self.state.currentRow
|
||
});
|
||
doc.destroy().then(function() {
|
||
self.model.currentDocuments.remove(doc);
|
||
my.notify("Row deleted successfully");
|
||
})
|
||
.fail(function(err) {
|
||
my.notify("Errorz! " + err)
|
||
})
|
||
}
|
||
}
|
||
util.hide('data-table-menu');
|
||
actions[$(e.target).attr('data-action')]();
|
||
},
|
||
|
||
showTransformColumnDialog: function() {
|
||
var $el = $('.dialog-content');
|
||
util.show('dialog');
|
||
var view = new my.ColumnTransform({
|
||
model: this.model
|
||
});
|
||
view.state = this.state;
|
||
view.render();
|
||
$el.empty();
|
||
$el.append(view.el);
|
||
util.observeExit($el, function() {
|
||
util.hide('dialog');
|
||
})
|
||
$('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
|
||
},
|
||
|
||
showTransformDialog: function() {
|
||
var $el = $('.dialog-content');
|
||
util.show('dialog');
|
||
var view = new my.DataTransform({
|
||
});
|
||
view.render();
|
||
$el.empty();
|
||
$el.append(view.el);
|
||
util.observeExit($el, function() {
|
||
util.hide('dialog');
|
||
})
|
||
$('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
|
||
},
|
||
|
||
setColumnSort: function(order) {
|
||
var query = _.extend(this.model.queryState, {sort: [[this.state.currentColumn, order]]});
|
||
this.model.query(query);
|
||
},
|
||
|
||
hideColumn: function() {
|
||
this.hiddenHeaders.push(this.state.currentColumn);
|
||
this.render();
|
||
},
|
||
|
||
showColumn: function(e) {
|
||
this.hiddenHeaders = _.without(this.hiddenHeaders, $(e.target).data('column'));
|
||
this.render();
|
||
},
|
||
|
||
// ======================================================
|
||
// Core Templating
|
||
template: ' \
|
||
<div class="data-table-menu-overlay" style="display: none; z-index: 101; "> </div> \
|
||
<ul class="data-table-menu"></ul> \
|
||
<table class="data-table" cellspacing="0"> \
|
||
<thead> \
|
||
<tr> \
|
||
{{#notEmpty}} \
|
||
<th class="column-header"> \
|
||
<div class="column-header-title"> \
|
||
<a class="root-header-menu"></a> \
|
||
<span class="column-header-name"></span> \
|
||
</div> \
|
||
</th> \
|
||
{{/notEmpty}} \
|
||
{{#headers}} \
|
||
<th class="column-header"> \
|
||
<div class="column-header-title"> \
|
||
<a class="column-header-menu"></a> \
|
||
<span class="column-header-name">{{.}}</span> \
|
||
</div> \
|
||
</div> \
|
||
</th> \
|
||
{{/headers}} \
|
||
</tr> \
|
||
</thead> \
|
||
<tbody></tbody> \
|
||
</table> \
|
||
',
|
||
|
||
toTemplateJSON: function() {
|
||
var modelData = this.model.toJSON()
|
||
modelData.notEmpty = ( this.headers.length > 0 )
|
||
modelData.headers = this.headers;
|
||
return modelData;
|
||
},
|
||
render: function() {
|
||
var self = this;
|
||
this.headers = _.filter(this.model.get('headers'), function(header) {
|
||
return _.indexOf(self.hiddenHeaders, header) == -1;
|
||
});
|
||
var htmls = $.mustache(this.template, this.toTemplateJSON());
|
||
this.el.html(htmls);
|
||
this.model.currentDocuments.forEach(function(doc) {
|
||
var tr = $('<tr />');
|
||
self.el.find('tbody').append(tr);
|
||
var newView = new my.DataTableRow({
|
||
model: doc,
|
||
el: tr,
|
||
headers: self.headers,
|
||
});
|
||
newView.render();
|
||
});
|
||
$(".root-header-menu").toggle((self.hiddenHeaders.length > 0));
|
||
return this;
|
||
}
|
||
});
|
||
|
||
// DataTableRow View for rendering an individual document.
|
||
//
|
||
// Since we want this to update in place it is up to creator to provider the element to attach to.
|
||
// In addition you must pass in a headers in the constructor options. This should be list of headers for the DataTable.
|
||
my.DataTableRow = Backbone.View.extend({
|
||
initialize: function(options) {
|
||
_.bindAll(this, 'render');
|
||
this._headers = options.headers;
|
||
this.el = $(this.el);
|
||
this.model.bind('change', this.render);
|
||
},
|
||
|
||
template: ' \
|
||
<td><a class="row-header-menu"></a></td> \
|
||
{{#cells}} \
|
||
<td data-header="{{header}}"> \
|
||
<div class="data-table-cell-content"> \
|
||
<a href="javascript:{}" class="data-table-cell-edit" title="Edit this cell"> </a> \
|
||
<div class="data-table-cell-value">{{value}}</div> \
|
||
</div> \
|
||
</td> \
|
||
{{/cells}} \
|
||
',
|
||
events: {
|
||
'click .data-table-cell-edit': 'onEditClick',
|
||
// cell editor
|
||
'click .data-table-cell-editor .okButton': 'onEditorOK',
|
||
'click .data-table-cell-editor .cancelButton': 'onEditorCancel'
|
||
},
|
||
|
||
toTemplateJSON: function() {
|
||
var doc = this.model;
|
||
var cellData = _.map(this._headers, function(header) {
|
||
return {header: header, value: doc.get(header)}
|
||
})
|
||
return { id: this.id, cells: cellData }
|
||
},
|
||
|
||
render: function() {
|
||
this.el.attr('data-id', this.model.id);
|
||
var html = $.mustache(this.template, this.toTemplateJSON());
|
||
$(this.el).html(html);
|
||
return this;
|
||
},
|
||
|
||
// ======================================================
|
||
// Cell Editor
|
||
|
||
onEditClick: function(e) {
|
||
var editing = this.el.find('.data-table-cell-editor-editor');
|
||
if (editing.length > 0) {
|
||
editing.parents('.data-table-cell-value').html(editing.text()).siblings('.data-table-cell-edit').removeClass("hidden");
|
||
}
|
||
$(e.target).addClass("hidden");
|
||
var cell = $(e.target).siblings('.data-table-cell-value');
|
||
cell.data("previousContents", cell.text());
|
||
util.render('cellEditor', cell, {value: cell.text()});
|
||
},
|
||
|
||
onEditorOK: function(e) {
|
||
var cell = $(e.target);
|
||
var rowId = cell.parents('tr').attr('data-id');
|
||
var header = cell.parents('td').attr('data-header');
|
||
var newValue = cell.parents('.data-table-cell-editor').find('.data-table-cell-editor-editor').val();
|
||
var newData = {};
|
||
newData[header] = newValue;
|
||
this.model.set(newData);
|
||
my.notify("Updating row...", {loader: true});
|
||
this.model.save().then(function(response) {
|
||
my.notify("Row updated successfully", {category: 'success'});
|
||
})
|
||
.fail(function() {
|
||
my.notify('Error saving row', {
|
||
category: 'error',
|
||
persist: true
|
||
});
|
||
});
|
||
},
|
||
|
||
onEditorCancel: function(e) {
|
||
var cell = $(e.target).parents('.data-table-cell-value');
|
||
cell.html(cell.data('previousContents')).siblings('.data-table-cell-edit').removeClass("hidden");
|
||
}
|
||
});
|
||
|
||
|
||
// View (Dialog) for doing data transformations (on columns of data).
|
||
my.ColumnTransform = Backbone.View.extend({
|
||
className: 'transform-column-view',
|
||
template: ' \
|
||
<div class="dialog-header"> \
|
||
Functional transform on column {{name}} \
|
||
</div> \
|
||
<div class="dialog-body"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table> \
|
||
<tbody> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table rows="4" cols="4"> \
|
||
<tbody> \
|
||
<tr style="vertical-align: bottom;"> \
|
||
<td colspan="4"> \
|
||
Expression \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="3"> \
|
||
<div class="input-container"> \
|
||
<textarea class="expression-preview-code"></textarea> \
|
||
</div> \
|
||
</td> \
|
||
<td class="expression-preview-parsing-status" width="150" style="vertical-align: top;"> \
|
||
No syntax error. \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div id="expression-preview-tabs" class="refine-tabs ui-tabs ui-widget ui-widget-content ui-corner-all"> \
|
||
<span>Preview</span> \
|
||
<div id="expression-preview-tabs-preview" class="ui-tabs-panel ui-widget-content ui-corner-bottom"> \
|
||
<div class="expression-preview-container" style="width: 652px; "> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</div> \
|
||
<div class="dialog-footer"> \
|
||
<button class="okButton btn primary"> Update All </button> \
|
||
<button class="cancelButton btn danger">Cancel</button> \
|
||
</div> \
|
||
',
|
||
|
||
events: {
|
||
'click .okButton': 'onSubmit'
|
||
, 'keydown .expression-preview-code': 'onEditorKeydown'
|
||
},
|
||
|
||
initialize: function() {
|
||
this.el = $(this.el);
|
||
},
|
||
|
||
render: function() {
|
||
var htmls = $.mustache(this.template,
|
||
{name: this.state.currentColumn}
|
||
)
|
||
this.el.html(htmls);
|
||
// Put in the basic (identity) transform script
|
||
// TODO: put this into the template?
|
||
var editor = this.el.find('.expression-preview-code');
|
||
editor.val("function(doc) {\n doc['"+ this.state.currentColumn+"'] = doc['"+ this.state.currentColumn+"'];\n return doc;\n}");
|
||
editor.focus().get(0).setSelectionRange(18, 18);
|
||
editor.keydown();
|
||
},
|
||
|
||
onSubmit: function(e) {
|
||
var self = this;
|
||
var funcText = this.el.find('.expression-preview-code').val();
|
||
var editFunc = costco.evalFunction(funcText);
|
||
if (editFunc.errorMessage) {
|
||
my.notify("Error with function! " + editFunc.errorMessage);
|
||
return;
|
||
}
|
||
util.hide('dialog');
|
||
my.notify("Updating all visible docs. This could take a while...", {persist: true, loader: true});
|
||
var docs = self.model.currentDocuments.map(function(doc) {
|
||
return doc.toJSON();
|
||
});
|
||
// TODO: notify about failed docs?
|
||
var toUpdate = costco.mapDocs(docs, editFunc).edited;
|
||
var totalToUpdate = toUpdate.length;
|
||
function onCompletedUpdate() {
|
||
totalToUpdate += -1;
|
||
if (totalToUpdate === 0) {
|
||
my.notify(toUpdate.length + " documents updated successfully");
|
||
alert('WARNING: We have only updated the docs in this view. (Updating of all docs not yet implemented!)');
|
||
self.remove();
|
||
}
|
||
}
|
||
// TODO: Very inefficient as we search through all docs every time!
|
||
_.each(toUpdate, function(editedDoc) {
|
||
var realDoc = self.model.currentDocuments.get(editedDoc.id);
|
||
realDoc.set(editedDoc);
|
||
realDoc.save().then(onCompletedUpdate).fail(onCompletedUpdate)
|
||
});
|
||
},
|
||
|
||
onEditorKeydown: function(e) {
|
||
var self = this;
|
||
// if you don't setTimeout it won't grab the latest character if you call e.target.value
|
||
window.setTimeout( function() {
|
||
var errors = self.el.find('.expression-preview-parsing-status');
|
||
var editFunc = costco.evalFunction(e.target.value);
|
||
if (!editFunc.errorMessage) {
|
||
errors.text('No syntax error.');
|
||
var docs = self.model.currentDocuments.map(function(doc) {
|
||
return doc.toJSON();
|
||
});
|
||
var previewData = costco.previewTransform(docs, editFunc, self.state.currentColumn);
|
||
util.render('editPreview', 'expression-preview-container', {rows: previewData});
|
||
} else {
|
||
errors.text(editFunc.errorMessage);
|
||
}
|
||
}, 1, true);
|
||
}
|
||
});
|
||
|
||
// View (Dialog) for doing data transformations on whole dataset.
|
||
my.DataTransform = Backbone.View.extend({
|
||
className: 'transform-view',
|
||
template: ' \
|
||
<div class="dialog-header"> \
|
||
Recursive transform on all rows \
|
||
</div> \
|
||
<div class="dialog-body"> \
|
||
<div class="grid-layout layout-full"> \
|
||
<p class="info">Traverse and transform objects by visiting every node on a recursive walk using <a href="https://github.com/substack/js-traverse">js-traverse</a>.</p> \
|
||
<table> \
|
||
<tbody> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table rows="4" cols="4"> \
|
||
<tbody> \
|
||
<tr style="vertical-align: bottom;"> \
|
||
<td colspan="4"> \
|
||
Expression \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="3"> \
|
||
<div class="input-container"> \
|
||
<textarea class="expression-preview-code"></textarea> \
|
||
</div> \
|
||
</td> \
|
||
<td class="expression-preview-parsing-status" width="150" style="vertical-align: top;"> \
|
||
No syntax error. \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div id="expression-preview-tabs" class="refine-tabs ui-tabs ui-widget ui-widget-content ui-corner-all"> \
|
||
<span>Preview</span> \
|
||
<div id="expression-preview-tabs-preview" class="ui-tabs-panel ui-widget-content ui-corner-bottom"> \
|
||
<div class="expression-preview-container" style="width: 652px; "> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</div> \
|
||
<div class="dialog-footer"> \
|
||
<button class="okButton button"> Update All </button> \
|
||
<button class="cancelButton button">Cancel</button> \
|
||
</div> \
|
||
',
|
||
|
||
initialize: function() {
|
||
this.el = $(this.el);
|
||
},
|
||
|
||
render: function() {
|
||
this.el.html(this.template);
|
||
}
|
||
});
|
||
|
||
|
||
// Graph view for a Dataset using Flot graphing library.
|
||
//
|
||
// Initialization arguments:
|
||
//
|
||
// * model: recline.Model.Dataset
|
||
// * config: (optional) graph configuration hash of form:
|
||
//
|
||
// {
|
||
// group: {column name for x-axis},
|
||
// series: [{column name for series A}, {column name series B}, ... ],
|
||
// graphType: 'line'
|
||
// }
|
||
//
|
||
// NB: should *not* provide an el argument to the view but must let the view
|
||
// generate the element itself (you can then append view.el to the DOM.
|
||
my.FlotGraph = Backbone.View.extend({
|
||
|
||
tagName: "div",
|
||
className: "data-graph-container",
|
||
|
||
template: ' \
|
||
<div class="editor"> \
|
||
<div class="editor-info editor-hide-info"> \
|
||
<h3 class="action-toggle-help">Help »</h3> \
|
||
<p>To create a chart select a column (group) to use as the x-axis \
|
||
then another column (Series A) to plot against it.</p> \
|
||
<p>You can add add \
|
||
additional series by clicking the "Add series" button</p> \
|
||
</div> \
|
||
<form class="form-stacked"> \
|
||
<div class="clearfix"> \
|
||
<label>Graph Type</label> \
|
||
<div class="input editor-type"> \
|
||
<select> \
|
||
<option value="line">Line</option> \
|
||
</select> \
|
||
</div> \
|
||
<label>Group Column (x-axis)</label> \
|
||
<div class="input editor-group"> \
|
||
<select> \
|
||
{{#headers}} \
|
||
<option value="{{.}}">{{.}}</option> \
|
||
{{/headers}} \
|
||
</select> \
|
||
</div> \
|
||
<div class="editor-series-group"> \
|
||
<div class="editor-series"> \
|
||
<label>Series <span>A (y-axis)</span></label> \
|
||
<div class="input"> \
|
||
<select> \
|
||
{{#headers}} \
|
||
<option value="{{.}}">{{.}}</option> \
|
||
{{/headers}} \
|
||
</select> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
<div class="editor-buttons"> \
|
||
<button class="btn editor-add">Add Series</button> \
|
||
</div> \
|
||
<div class="editor-buttons editor-submit" comment="hidden temporarily" style="display: none;"> \
|
||
<button class="editor-save">Save</button> \
|
||
<input type="hidden" class="editor-id" value="chart-1" /> \
|
||
</div> \
|
||
</form> \
|
||
</div> \
|
||
<div class="panel graph"></div> \
|
||
</div> \
|
||
',
|
||
|
||
events: {
|
||
'change form select': 'onEditorSubmit'
|
||
, 'click .editor-add': 'addSeries'
|
||
, 'click .action-remove-series': 'removeSeries'
|
||
, 'click .action-toggle-help': 'toggleHelp'
|
||
},
|
||
|
||
initialize: function(options, config) {
|
||
var self = this;
|
||
this.el = $(this.el);
|
||
_.bindAll(this, 'render', 'redraw');
|
||
// we need the model.headers to render properly
|
||
this.model.bind('change', this.render);
|
||
this.model.currentDocuments.bind('add', this.redraw);
|
||
this.model.currentDocuments.bind('reset', this.redraw);
|
||
this.chartConfig = _.extend({
|
||
group: null,
|
||
series: [],
|
||
graphType: 'line'
|
||
},
|
||
config)
|
||
this.render();
|
||
},
|
||
|
||
toTemplateJSON: function() {
|
||
return this.model.toJSON();
|
||
},
|
||
|
||
render: function() {
|
||
htmls = $.mustache(this.template, this.toTemplateJSON());
|
||
$(this.el).html(htmls);
|
||
// now set a load of stuff up
|
||
this.$graph = this.el.find('.panel.graph');
|
||
// for use later when adding additional series
|
||
// could be simpler just to have a common template!
|
||
this.$seriesClone = this.el.find('.editor-series').clone();
|
||
this._updateSeries();
|
||
return this;
|
||
},
|
||
|
||
onEditorSubmit: function(e) {
|
||
var select = this.el.find('.editor-group select');
|
||
this._getEditorData();
|
||
// update navigation
|
||
// TODO: make this less invasive (e.g. preserve other keys in query string)
|
||
window.location.hash = window.location.hash.split('?')[0] +
|
||
'?graph=' + JSON.stringify(this.chartConfig);
|
||
this.redraw();
|
||
},
|
||
|
||
redraw: function() {
|
||
// There appear to be issues generating a Flot graph if either:
|
||
|
||
// * The relevant div that graph attaches to his hidden at the moment of creating the plot -- Flot will complain with
|
||
//
|
||
// Uncaught Invalid dimensions for plot, width = 0, height = 0
|
||
// * There is no data for the plot -- either same error or may have issues later with errors like 'non-existent node-value'
|
||
var areWeVisible = !jQuery.expr.filters.hidden(this.el[0]);
|
||
if (!this.plot && (!areWeVisible || this.model.currentDocuments.length == 0)) {
|
||
return
|
||
}
|
||
// create this.plot and cache it
|
||
if (!this.plot) {
|
||
// only lines for the present
|
||
options = {
|
||
id: 'line',
|
||
name: 'Line Chart'
|
||
};
|
||
this.plot = $.plot(this.$graph, this.createSeries(), options);
|
||
}
|
||
this.plot.setData(this.createSeries());
|
||
this.plot.resize();
|
||
this.plot.setupGrid();
|
||
this.plot.draw();
|
||
},
|
||
|
||
_getEditorData: function() {
|
||
$editor = this
|
||
var series = this.$series.map(function () {
|
||
return $(this).val();
|
||
});
|
||
this.chartConfig.series = $.makeArray(series)
|
||
this.chartConfig.group = this.el.find('.editor-group select').val();
|
||
},
|
||
|
||
createSeries: function () {
|
||
var self = this;
|
||
var series = [];
|
||
if (this.chartConfig) {
|
||
$.each(this.chartConfig.series, function (seriesIndex, field) {
|
||
var points = [];
|
||
$.each(self.model.currentDocuments.models, function (index, doc) {
|
||
var x = doc.get(self.chartConfig.group);
|
||
var y = doc.get(field);
|
||
if (typeof x === 'string') {
|
||
x = index;
|
||
}
|
||
points.push([x, y]);
|
||
});
|
||
series.push({data: points, label: field});
|
||
});
|
||
}
|
||
return series;
|
||
},
|
||
|
||
// Public: Adds a new empty series select box to the editor.
|
||
//
|
||
// All but the first select box will have a remove button that allows them
|
||
// to be removed.
|
||
//
|
||
// Returns itself.
|
||
addSeries: function (e) {
|
||
e.preventDefault();
|
||
var element = this.$seriesClone.clone(),
|
||
label = element.find('label'),
|
||
index = this.$series.length;
|
||
|
||
this.el.find('.editor-series-group').append(element);
|
||
this._updateSeries();
|
||
label.append(' [<a href="#remove" class="action-remove-series">Remove</a>]');
|
||
label.find('span').text(String.fromCharCode(this.$series.length + 64));
|
||
return this;
|
||
},
|
||
|
||
// Public: Removes a series list item from the editor.
|
||
//
|
||
// Also updates the labels of the remaining series elements.
|
||
removeSeries: function (e) {
|
||
e.preventDefault();
|
||
var $el = $(e.target);
|
||
$el.parent().parent().remove();
|
||
this._updateSeries();
|
||
this.$series.each(function (index) {
|
||
if (index > 0) {
|
||
var labelSpan = $(this).prev().find('span');
|
||
labelSpan.text(String.fromCharCode(index + 65));
|
||
}
|
||
});
|
||
this.onEditorSubmit();
|
||
},
|
||
|
||
toggleHelp: function() {
|
||
this.el.find('.editor-info').toggleClass('editor-hide-info');
|
||
},
|
||
|
||
// Private: Resets the series property to reference the select elements.
|
||
//
|
||
// Returns itself.
|
||
_updateSeries: function () {
|
||
this.$series = this.el.find('.editor-series select');
|
||
}
|
||
});
|
||
|
||
return my;
|
||
|
||
}(jQuery);
|
||
|