added meta data. dataset name and download date are still missing

wheat_production/serializers.py

@@ -9,12 +9,17 @@ from rest_framework.serializers import BaseSerializer
 # helper functions
 
 def get_provenance(obj):
-    """construct provenance information on population density dataset"""
+    """construct provenance information on wheat production dataset"""
     prov = OrderedDict([
         ('dataset_name', '?'),
-        ('dataset_description', """Wheat production ?"""),
-        ('data_source', """?"""),
-        ('datacenter_url', '?'),
+        ('dataset_description', """Wheat production values for the globe at 5 arc minute resolution. The data are in 
+        units of production (irrigated + non-irrigated) in thousand tonnes. \nThe data were downloaded from the GAEZ 
+        data portal ( http://gaez.fao.org/Main.html# ) and then output to ascii text format by:\nDr Katrina Sharps\n
+        Centre for Ecology & Hydrology, Environment Centre Wales, UK\nTel. + 44 (0)1248 374518 (direct)\n
+        Tel. + 44 (0)1248 374500 (reception)\nE-mail: katshar@ceh.ac.uk"""),
+        ('data_source', """Dr Katrina Sharps\nCentre for Ecology & Hydrology, Environment Centre Wales, UK\n
+        Tel. + 44 (0)1248 374518 (direct)\nTel. + 44 (0)1248 374500 (reception)\nE-mail: katshar@ceh.ac.uk"""),
+        ('datacenter_url', 'http://gaez.fao.org/Main.html'),
         ('download_date', '?'),
         ('timestamp', dt.datetime.now().isoformat())
     ])
@@ -45,7 +50,7 @@ class AggSerializer(BaseSerializer):
                 (agg_function, OrderedDict([
                     (d, v) for d, v in zip(obj['direction'], val)
                 ])),
-                ('units', 'km-2'),
+                ('units', 'kt'),
                 ('radius', obj['radius']),
             ])
             if obj['direction'] is None:
@@ -55,7 +60,7 @@ class AggSerializer(BaseSerializer):
                 ('agg_function', agg_function),
                 ('many', False),
                 (agg_function, val),
-                ('units', 'km-2'),
+                ('units', 'kt'),
                 ('radius', obj['radius']),
                 ('direction', obj['direction']),
             ])