Merge pull request #69 from slim01/master

fix problem in edge compability (#50)

Author: m-mohr

src/components/blocks/blocks.js

@@ -708,7 +708,6 @@ Blocks.prototype.addEdge = function(blockOut, fieldOut, blockIn, fieldIn, isData
     if (!this.areTypesCompatible(fieldIn, fieldOut)) {
         throw 'Types are not compatible';
     }
-
     // Check whether the data type allows multiple input edges
     if (fieldIn.getEdgeCount() > 0 && !fieldIn.allowsMultipleEdges()) {
         throw 'Parameter accepts only one input';
@@ -837,8 +836,8 @@ Blocks.prototype.importProcessGraph = function(processGraph, registry) {
 
     // Import edges
     var nodes = pg.getNodes();
-    for(let i in nodes) {
-        var node = nodes[i];
+    // iterating using for in loop causes error in edge
+    Object.values(nodes).forEach(node => {
 
         var args = node.getArgumentNames();
         for(let i in args) {
@@ -867,7 +866,7 @@ Blocks.prototype.importProcessGraph = function(processGraph, registry) {
                     break;
             }
         }
-    }
+    });
 },
 
 Blocks.prototype.importNodesFromProcessGraph = function(nodes, x = 0, y = 0) {

src/components/blocks/field.js

@@ -141,7 +141,7 @@ class Field extends ProcessSchema {
             else {
                 var errorMsg = "Can't determine which object property this input should be assigned to. Please specify manually in Process Graph mode.";
                 console.warn(errorMsg);
-                this.block.blocks.showError(errorMsg);
+                throw errorMsg;
                 // ToDo: It is not quite clear what to do when multiple refs are available.
             }
         }