Windshaft-cartodb/lib/models/mapconfig/adapter/dataviews-widgets-adapter.js
2019-10-21 19:07:24 +02:00

100 lines
3.0 KiB
JavaScript

'use strict';
function DataviewsWidgetsMapConfigAdapter () {
}
module.exports = DataviewsWidgetsMapConfigAdapter;
DataviewsWidgetsMapConfigAdapter.prototype.getMapConfig = function (user, requestMapConfig, params, context, callback) {
if (!shouldAdapt(requestMapConfig)) {
return callback(null, requestMapConfig);
}
// prepare placeholders for new dataviews created from widgets
requestMapConfig.analyses = requestMapConfig.analyses || [];
requestMapConfig.dataviews = requestMapConfig.dataviews || {};
requestMapConfig.layers.forEach(function (layer, index) {
var layerSourceId = getLayerSourceId(layer);
if (!layer.options.widgets) {
return;
}
if (!layerSourceId && !layer.options.sql) {
return;
}
var dataviewSourceId = layerSourceId || 'cdb-layer-source-' + index;
// Append a new analysis if layer has no source id but sql.
if (!layerSourceId) {
requestMapConfig.analyses.push(
{
id: dataviewSourceId,
type: 'source',
params: {
query: layer.options.sql
}
}
);
}
var source = { id: dataviewSourceId };
var layerWidgets = layer.options.widgets || {};
Object.keys(layerWidgets).forEach(function (widgetId) {
var dataview = layerWidgets[widgetId];
requestMapConfig.dataviews[widgetId] = {
source: source,
type: dataview.type,
options: dataview.options
};
});
layer.options.source = source;
delete layer.options.sql;
// don't delete widgets for now as it might be useful for old clients
// delete layer.options.widgets;
});
// filters have to be rewritten also
var filters = getFilters(params);
var layersFilters = filters.layers || [];
filters.dataviews = filters.dataviews || {};
layersFilters.forEach(function (layerFilters) {
Object.keys(layerFilters).forEach(function (filterName) {
if (!filters.dataviews.hasOwnProperty(filterName)) {
filters.dataviews[filterName] = layerFilters[filterName];
}
});
});
delete filters.layers;
params.filters = JSON.stringify(filters);
return callback(null, requestMapConfig);
};
function shouldAdapt (requestMapConfig) {
return Array.isArray(requestMapConfig.layers) && requestMapConfig.layers.some(function hasWidgets (layer) {
return layer.options && layer.options.widgets && Object.keys(layer.options.widgets).length > 0;
});
}
function getLayerSourceId (layer) {
return layer.options.source && layer.options.source.id;
}
function getFilters (params) {
var filters = {};
if (params.filters) {
try {
filters = JSON.parse(params.filters);
} catch (e) {
// ignore
}
}
return filters;
}