75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
var _ = require('underscore');
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var $ = require('jquery');
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var cdb = require('internal-carto.js');
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var errorParse = require('builder/helpers/error-parser');
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var checkAndBuildOpts = require('builder/helpers/required-opts');
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var REQUIRED_OPTS = [
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'configModel',
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'nodeDefModel'
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];
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var OBS_META_QUERY = 'SELECT OBS_GetMeta((SELECT ST_SetSRID(ST_Extent(the_geom), 4326) FROM ({{{ query }}}) q), {{{ metadata }}})';
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var ColumnName = function (options) {
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checkAndBuildOpts(options, REQUIRED_OPTS, this);
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this._querySchemaModel = this._nodeDefModel.querySchemaModel;
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this.isFetching = false;
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var configModel = options.configModel;
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this.SQL = new cdb.SQL({
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user: configModel.get('user_name'),
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sql_api_template: configModel.get('sql_api_template'),
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api_key: configModel.get('api_key')
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});
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};
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ColumnName.prototype = {
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buildQuery: function () {
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return OBS_META_QUERY;
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},
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buildQueryOptions: function (options) {
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return {
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metadata: "'[" + JSON.stringify(options) + "]'",
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query: this._querySchemaModel.get('query')
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};
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},
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fetch: function (options) {
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if (!options.numer_id) {
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return;
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}
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this._success = options && options.success;
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this._error = options && options.error;
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var deferred = $.Deferred();
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var queryOptions = this.buildQueryOptions(_.omit(options, 'sucess', 'error'));
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var sqlQuery = this.buildQuery();
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if (!this.isFetching) {
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this.isFetching = true;
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this.SQL.execute(sqlQuery, queryOptions, {
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success: function (data) {
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this.isFetching = false;
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this._success && this._success(data);
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deferred.resolve();
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}.bind(this),
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error: function (err) {
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this.isFetching = false;
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this._error && this._error(errorParse(err));
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deferred.reject();
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}.bind(this)
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});
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} else {
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deferred.reject();
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}
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return deferred.promise();
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}
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};
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module.exports = ColumnName;
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