Merge pull request #121 from noi-techpark/issue-115

Issue 115

source/howto/mobility/getstarted.rst

@@ -199,12 +199,3 @@ of values, respectively:
 * :literal:`where=smetadata.capacity.gt.100,smetadata.municipality.eq."Bolzano -
   Bozen"` same as previous query, but only parking lots in Bolzano are shown.
 
-
-Null values
-~~~~~~~~~~~
-
-There is currently no mechanism to distinguish whether a JSON field
-contains a :literal:`null` value or if the field is
-non-existent. However, within a :literal:`WHERE` clause is possible to
-filter elements that have :literal:`null` values set by adding to the
-query the special parameter :literal:`shownull=true`.

source/howto/mobility/tips.rst

@@ -0,0 +1,30 @@
+
+
+.. _tips_mobility:
+
+Quick and (not-so) Dirty Tips for Tourism (AKA Mini-howtos)
+-----------------------------------------------------------
+
+This section contains various tips and tricks to improve and tweak the
+queries sent to the mobility datasets, allowing more precise results to
+be retrieved.
+
+
+.. note:: All the examples in this section will use the :strong:`flat`
+   representation type.
+
+
+Example Calls
+~~~~~~~~~~~~~
+
+
+Tips and Tricks
+~~~~~~~~~~~~~~~
+
+
+.. _mobi_tt1:
+
+.. rubric:: TT1: How do I retrieve :literal:`null` values?
+
+   In order to show `null` values in the output of a query, add
+   :literal:`shownull=true` ad the end of your query.