Initial commit

lib/assets/javascripts/builder/node-geometry-tracker.js

@@ -0,0 +1,27 @@
+/*
+ *  Track geometry changes that happens in any Node definition model
+ */
+
+module.exports = {
+  track: function (params) {
+    if (!params) throw new Error('several parameters required');
+    if (!params.layerDefinitionsCollection) throw new Error('layerDefinitionsCollection is required');
+    if (!params.analysisDefinitionNodesCollection) throw new Error('analysisDefinitionNodesCollection is required');
+    if (!params.analysisDefinitionsCollection) throw new Error('analysisDefinitionsCollection is required');
+
+    this._layerDefinitionsCollection = params.layerDefinitionsCollection;
+    this._analysisDefinitionsCollection = params.analysisDefinitionsCollection;
+
+    params.analysisDefinitionNodesCollection.bind('change:simple_geom', this._onNodeGeometryChange, this);
+  },
+
+  _onNodeGeometryChange: function (nodeDefModel) {
+    if (nodeDefModel.get('table_name')) { // If it is a source node, no save
+      return;
+    }
+    var layerDefModel = this._layerDefinitionsCollection.findWhere({ source: nodeDefModel.get('id') });
+    if (layerDefModel) {
+      this._analysisDefinitionsCollection.saveAnalysisForLayer(layerDefModel);
+    }
+  }
+};