29 lines
863 B
JavaScript
29 lines
863 B
JavaScript
var queryUtils = require('../../utils/query-utils');
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function MapnikLayerStats () {
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this._types = {
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mapnik: true,
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cartodb: true
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};
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}
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MapnikLayerStats.prototype.is = function (type) {
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return this._types[type] ? this._types[type] : false;
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};
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MapnikLayerStats.prototype.getStats =
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function (layer, dbConnection, callback) {
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var queryRowCountSql = queryUtils.getQueryRowCount(layer.options.sql);
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// This query would gather stats for postgresql table if not exists
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dbConnection.query(queryRowCountSql, function (err, res) {
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if (err) {
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return callback(null, {estimatedFeatureCount: -1});
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} else {
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// We decided that the relation is 1 row == 1 feature
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return callback(null, {estimatedFeatureCount: res.rows[0].rows});
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}
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});
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};
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module.exports = MapnikLayerStats;
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