fix(Graph): edit GetRelationalEdgeBaseNode method and add NodeHasNotE…

…dgesException. (#117)

AnalysisData/AnalysisData/Exception/GraphException/NodeException/NodeHasNotEdgesException.cs

@@ -0,0 +1,9 @@
+namespace AnalysisData.Exception.GraphException.NodeException;
+
+public class NodeHasNotEdgesException : ServiceException
+{
+    public NodeHasNotEdgesException() : base(Resources.NodeHasNotEdgesException,
+        StatusCodes.Status404NotFound)
+    {
+    }
+}

AnalysisData/AnalysisData/Resources.resx

@@ -102,4 +102,8 @@
     <data name="FileProcessingException" xml:space="preserve">
         <value>failed to processing file ! </value>
     </data>
+    <data name="NodeHasNotEdgesException" xml:space="preserve">
+        <value>no edges found for this node ! </value>
+    </data>
+
 </root>

AnalysisData/AnalysisData/Services/GraphService/GraphServices/Relationship/GraphRelationService.cs

@@ -48,11 +48,16 @@ public GraphRelationService(IEntityNodeRepository entityNodeRepository, IEntityE
             throw new NodeNotAccessibleForUserException();
         }
 
-        if (!result.nodes.Any() && !result.edges.Any())
+        if (!result.nodes.Any())
         {
             throw new NodeNotFoundException();
         }
 
+        if (!result.edges.Any())
+        {
+            throw new NodeHasNotEdgesException();
+        }
+
         return result;
     }
 
@@ -72,7 +77,7 @@ public GraphRelationService(IEntityNodeRepository entityNodeRepository, IEntityE
             { From = x.EntityIDSource, To = x.EntityIDTarget, Id = x.Id });
         return (nodeDto, edgeDto);
     }
-    
+
     private async Task<List<EntityNode>> GetEntityNodesByIdsAsync(IEnumerable<Guid> nodeIdes)
     {
         var entityNodes = new List<EntityNode>();
@@ -84,6 +89,7 @@ private async Task<List<EntityNode>> GetEntityNodesByIdsAsync(IEnumerable<Guid>
                 entityNodes.Add(node);
             }
         }
+
         return entityNodes;
     }
 }