[FEAT] no link for Graph page if Workflow not finished yet.

gargantext_web/views.py

@@ -495,12 +495,18 @@ def corpus(request, project_id, corpus_id):
         print(chart)
     except Exception as error:
         print(error)
-       
+    
+    try:
+        processing = corpus.metadata['Processing']
+    except:
+        processing = 0
+
     html = t.render(Context({\
             'user': user,\
             'date': date,\
             'project': project,\
             'corpus' : corpus,\
+            'processing' : processing,\
 #            'documents': documents,\
             'number' : number,\
             'dates' : chart,\

node/models.py

@@ -237,12 +237,16 @@ class Node(CTENode):
     @current_app.task(filter=task_method)
     def workflow(self, keys=None, ngramsextractorscache=None, ngramscaches=None, verbose=False):
         print("In workflow() START")
+        self.metadata['Processing'] = 1
+        self.save()
         self.parse_resources()
         type_document   = NodeType.objects.get(name='Document')
         self.children.filter(type_id=type_document.pk).extract_ngrams(keys=['title',])
         from analysis.functions import do_tfidf
         do_tfidf(self)
         print("In workflow() END")
+        self.metadata['Processing'] = 0
+        self.save()
 
 class Node_Metadata(models.Model):
     node        = models.ForeignKey(Node, on_delete=models.CASCADE)

templates/corpus.html

@@ -131,7 +131,11 @@
 
 				<div class="col-md-4">
 						<div class="jumbotron">
-						<h3><a href="/project/{{project.id}}/corpus/{{ corpus.id }}/explorer">Graph</a></h3>
+                {% if processing == "0" %}
+								<h3><a href="/project/{{project.id}}/corpus/{{ corpus.id }}/explorer">Graph</a></h3>
+                {% else %}
+                <h3> <img width="20px" src="{% static "js/libs/img2/loading-bar.gif" %}"></img> Graph (later)</h3>
+                {% endif %}
 						<ol>
 								<li>Visualize</li>
 								<li>Explore</li>