103 lines
2.8 KiB
JavaScript
103 lines
2.8 KiB
JavaScript
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const _ = require('underscore');
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const CartoTableData = require('dashboard/data/table/carto-table-data');
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const checkAndBuildOpts = require('builder/helpers/required-opts');
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const REQUIRED_OPTS = [
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'configModel'
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];
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/**
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* contains data for a sql view
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* var s = new cdb.admin.SQLViewData({ sql : "select...." });
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* s.fetch();
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*/
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module.exports = CartoTableData.extend({
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UNDEFINED_TYPE_COLUMN: 'undefined',
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initialize: function (models, options) {
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checkAndBuildOpts(options, REQUIRED_OPTS, this);
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this.model.prototype.idAttribute = 'cartodb_id';
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CartoTableData.prototype.initialize.call(this, models, options);
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this.bind('error', function () {
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this.reset([]);
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});
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// this.initOptions();
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if (options && options.sql) {
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this.setSQL(options.sql);
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}
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},
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_parseSQL: function (sql) {
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sql = sql.replace(/([^\\]){x}/g, '$10').replace(/\\{x}/g, '{x}');
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sql = sql.replace(/([^\\]){y}/g, '$10').replace(/\\{y}/g, '{y}');
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sql = sql.replace(/([^\\]){z}/g, '$10').replace(/\\{z}/g, '{z}');
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// Substitute mapnik tokens
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// resolution at zoom level 0
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var res = '156543.03515625';
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// full webmercator extent
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var ext = 'ST_MakeEnvelope(-20037508.5,-20037508.5,20037508.5,20037508.5,3857)';
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sql = sql.replace('!bbox!', ext)
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.replace('!pixel_width!', res)
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.replace('!pixel_height!', res);
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return sql;
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},
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sqlSource: function () {
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return this.options.get('sql_source');
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},
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setSQL: function (sql, opts) {
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opts = opts || {};
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// reset options whiout changing raising a new fetchs
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this.options.set({
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page: 0,
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sort_order: 'asc',
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order_by: '',
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filter_column: '',
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filter_value: '',
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sql_source: opts.sql_source || null
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}, { silent: true });
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var silent = opts.silent;
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opts.silent = true;
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this.options.set({ sql: sql ? this._parseSQL(sql) : '' }, opts);
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if (!silent) {
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this.options.trigger('change:sql', this.options, sql);
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}
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},
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getSQL: function () {
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return this.options.get('sql');
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},
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url: function () {
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return this.sqlApiUrl();
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},
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isReadOnly: function () {
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return this.sqlSource() !== 'filters';
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},
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quartiles: function (nslots, column, callback, error) {
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var tmpl = _.template('SELECT quartile, max(<%= column %>) as maxAmount FROM (SELECT <%= column %>, ntile(<%= slots %>) over (order by <%= column %>) as quartile FROM (<%= sql %>) as _rambo WHERE <%= column %> IS NOT NULL) x GROUP BY quartile ORDER BY quartile');
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this._sqlQuery(tmpl({
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slots: nslots,
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sql: this.options.get('sql'),
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column: column
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}),
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function (data) {
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callback(_(data.rows).pluck('maxamount'));
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},
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error);
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},
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// returns if the query contains geo data
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isGeoreferenced: function () {
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return this.getGeometryTypes().length > 0;
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}
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});
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