Handling comparison not available for DGE table.

Author: scastlara

NetExplorer/static/css/style.css

@@ -2041,6 +2041,15 @@ kbd {
     background-color: #FDD4D4;  
 }
 
+#dge-table-notfound {
+    display: none; 
+    margin: auto;
+    font-size: 18px;
+    padding: 8px;
+    width: 700px; 
+    background-color: #FDD4D4;  
+}
+
 #expression-plot-loading {
     display: none;
     position: absolute;

NetExplorer/static/js/planexp.js

@@ -209,9 +209,15 @@ var PlanExp = (function() {
                 'csrfmiddlewaretoken': '{{ csrf_token }}'
             },
             success: function(data) {
-                targetDiv.html(data);
-                targetDiv.hide();
-                targetDiv.show(250);
+                if (jQuery.isEmptyObject(data)) {
+                    targetDiv.hide();
+                    $("#dge-table-notfound").show(250);
+                } else {
+                    $("#dge-table-notfound").hide();
+                    targetDiv.html(data);
+                    targetDiv.hide();
+                    targetDiv.show(250);
+                }
             }
         });
     }

NetExplorer/templates/NetExplorer/planexp.html

@@ -80,6 +80,10 @@ <h4>Select conditions to compare</h4>
                     </select>
 
                 </div>
+                <div id="dge-table-notfound">
+                    <span class="glyphicon glyphicon-warning-sign"></span>
+                    Condition comparison not available.
+                </div>
                 <div id="planexp-dge-table">
                 </div>
             </div> <!-- Differential expression table -->

NetExplorer/views/experiment_dge_table.py

@@ -13,12 +13,19 @@ def experiment_dge_table(request):
         dataset = Dataset.objects.get(name=dataset_name)
         condition1 = Condition.objects.get(name=c1_name, experiment=experiment)
         condition2 = Condition.objects.get(name=c2_name, experiment=experiment)
-        expression = ExpressionRelative.objects.filter(experiment=experiment, dataset=dataset, condition1=condition1, condition2=condition2).order_by('-fold_change')[:500]
+        expression = ExpressionRelative.objects.filter(
+            experiment=experiment, dataset=dataset, 
+            condition1=condition1, condition2=condition2).order_by('-fold_change')[:500]
         if not expression:
             # In case condition1 and condition2 are reversed in Database
             expression = ExpressionRelative.objects.filter(
                 experiment=experiment, dataset=dataset, 
-                condition1=condition2, condition2=condition1).order_by('-fold_change')[:100]
-        return render(request, 'NetExplorer/experiment_dge_table.html', { 'expressions' : expression, 'database': dataset })
+                condition1=condition2, condition2=condition1).order_by('-fold_change')[:500]
+        if not expression:
+            response = {}
+            return HttpResponse(json.dumps(response), content_type="application/json")
+        else:
+            response = { 'expressions' : expression, 'database': dataset }
+            return render(request, 'NetExplorer/experiment_dge_table.html', response)
     else:
         return render(request, 'NetExplorer/404.html')