[FEAT] GRAPH REST API with start=YEAR & end=YEAR filter. More precise date can be computed next.

analysis/cooccurrences.py

@@ -8,6 +8,7 @@ from gargantext_web.db import Node, Ngram, NodeNgram, NodeNgramNgram, \
 from gargantext_web.db import session, cache, get_or_create_node, bulk_insert
 from analysis.lists import WeightedMatrix, UnweightedList, Translations
 import inspect
+import datetime
 
 def do_cooc(corpus=None
          , field1='ngrams', field2='ngrams'
@@ -116,22 +117,31 @@ def do_cooc(corpus=None
 
     # Cooc between the dates start and end
     if start is not None:
+        #date_start = datetime.datetime.strptime ("2001-2-3 10:11:12", "%Y-%m-%d %H:%M:%S")
+        # TODO : more complexe date format here.
+        date_start = datetime.datetime.strptime (str(start), "%Y")
+        date_start_utc = date_start.strftime("%Y-%m-%d %H:%M:%S")
+        
         Start=aliased(NodeHyperdata)
         StartFormat = aliased(Hyperdata)
         cooc_query = (cooc_query.join(Start, Start.node_id == Node.id)
                                 .join(StartFormat, StartFormat.id == Start.hyperdata_id)
-                                .filter(StartFormat.name == 'datetime')
-                                .filter(Start.value_datetime >= start)
+                                .filter(StartFormat.name == 'publication_date')
+                                .filter(Start.value_datetime >= date_start_utc)
                       )
 
 
     if end is not None:
+        # TODO : more complexe date format here.
+        date_end = datetime.datetime.strptime (str(end), "%Y")
+        date_end_utc = date_end.strftime("%Y-%m-%d %H:%M:%S")
+        
         End=aliased(NodeHyperdata)
         EndFormat = aliased(Hyperdata)
         cooc_query = (cooc_query.join(End, End.node_id == Node.id)
                                 .join(EndFormat, EndFormat.id == End.hyperdata_id)
-                                .filter(EndFormat.name == 'datetime')
-                                .filter(End.value_datetime <= end)
+                                .filter(EndFormat.name == 'publication_date')
+                                .filter(End.value_datetime <= date_end_utc)
                       )
 
 

analysis/functions.py

@@ -139,7 +139,9 @@ def get_cooc(request=None, corpus=None
     #cooc_id = get_or_create_node(nodetype='Cooccurrence', corpus=corpus).id
     cooc_id = do_cooc(corpus=corpus, field1=field1, field2=field2
             , miam_id=miam_id, group_id=group_id, stop_id=stop_id, limit=size
-            , isMonopartite=isMonopartite)
+            , isMonopartite=isMonopartite
+            , start=start
+            , end = end)
     
     G, partition, ids, weight = do_distance(cooc_id, field1=field1, field2=field2, isMonopartite=isMonopartite)
 

rest_v1_0/graph.py

@@ -11,9 +11,14 @@ class Graph(APIView):
         Graph.get :: Get graph data as REST api.
         Get all the parameters first
         graph?field1=ngrams&field2=ngrams&
+        graph?field1=ngrams&field2=ngrams&start=''&end=''
         '''
         field1 = request.GET.get('field1', 'ngrams')
         field2 = request.GET.get('field2', 'ngrams')
+        
+        start  = request.GET.get('start', None)
+        end    = request.GET.get('end'  , None)
+        
         format_   =  request.GET.get('format', 'json')
         type_    = request.GET.get('type', 'node_link')
         
@@ -25,6 +30,9 @@ class Graph(APIView):
         
         if field1 in accepted_field1 :
             if field2 in accepted_field2 :
+                if start is not None and end is not None :
+                    data = get_cooc(corpus=corpus,field1=field1, field2=field2, start=start, end=end)
+                else:
                     data = get_cooc(corpus=corpus,field1=field1, field2=field2)
                 if format_ == 'json':
                     return JsonHttpResponse(data)