Initial commit

lib/assets/javascripts/dashboard/data/table/sqlviewdata-model.js

@@ -0,0 +1,102 @@
+const _ = require('underscore');
+const CartoTableData = require('dashboard/data/table/carto-table-data');
+const checkAndBuildOpts = require('builder/helpers/required-opts');
+
+const REQUIRED_OPTS = [
+  'configModel'
+];
+
+/**
+ * contains data for a sql view
+ * var s = new cdb.admin.SQLViewData({ sql : "select...." });
+ * s.fetch();
+ */
+module.exports = CartoTableData.extend({
+
+  UNDEFINED_TYPE_COLUMN: 'undefined',
+
+  initialize: function (models, options) {
+    checkAndBuildOpts(options, REQUIRED_OPTS, this);
+    this.model.prototype.idAttribute = 'cartodb_id';
+    CartoTableData.prototype.initialize.call(this, models, options);
+
+    this.bind('error', function () {
+      this.reset([]);
+    });
+    // this.initOptions();
+    if (options && options.sql) {
+      this.setSQL(options.sql);
+    }
+  },
+
+  _parseSQL: function (sql) {
+    sql = sql.replace(/([^\\]){x}/g, '$10').replace(/\\{x}/g, '{x}');
+    sql = sql.replace(/([^\\]){y}/g, '$10').replace(/\\{y}/g, '{y}');
+    sql = sql.replace(/([^\\]){z}/g, '$10').replace(/\\{z}/g, '{z}');
+
+    // Substitute mapnik tokens
+    // resolution at zoom level 0
+    var res = '156543.03515625';
+    // full webmercator extent
+    var ext = 'ST_MakeEnvelope(-20037508.5,-20037508.5,20037508.5,20037508.5,3857)';
+    sql = sql.replace('!bbox!', ext)
+      .replace('!pixel_width!', res)
+      .replace('!pixel_height!', res);
+
+    return sql;
+  },
+
+  sqlSource: function () {
+    return this.options.get('sql_source');
+  },
+
+  setSQL: function (sql, opts) {
+    opts = opts || {};
+    // reset options whiout changing raising a new fetchs
+    this.options.set({
+      page: 0,
+      sort_order: 'asc',
+      order_by: '',
+      filter_column: '',
+      filter_value: '',
+      sql_source: opts.sql_source || null
+    }, { silent: true });
+
+    var silent = opts.silent;
+    opts.silent = true;
+    this.options.set({ sql: sql ? this._parseSQL(sql) : '' }, opts);
+    if (!silent) {
+      this.options.trigger('change:sql', this.options, sql);
+    }
+  },
+
+  getSQL: function () {
+    return this.options.get('sql');
+  },
+
+  url: function () {
+    return this.sqlApiUrl();
+  },
+
+  isReadOnly: function () {
+    return this.sqlSource() !== 'filters';
+  },
+
+  quartiles: function (nslots, column, callback, error) {
+    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');
+    this._sqlQuery(tmpl({
+      slots: nslots,
+      sql: this.options.get('sql'),
+      column: column
+    }),
+    function (data) {
+      callback(_(data.rows).pluck('maxamount'));
+    },
+    error);
+  },
+
+  // returns if the query contains geo data
+  isGeoreferenced: function () {
+    return this.getGeometryTypes().length > 0;
+  }
+});