Add missed fields to bulk extract query, docs

docs/adding-new-fields.md

@@ -20,6 +20,7 @@ The second section would be required when adding a new category or when changing
 
 #### In data extracts
 1. Add the field to the select list in the COPY query in `maintenance/extract_data/export_attributes.sql` 
+2. Add a description of the field to the `README.txt` file
 
 ### Adding an attribute which is used to colour the map
 

maintenance/extract_data/README.txt

@@ -41,7 +41,11 @@ This is the main table, containing almost all data collected by Colouring London
 - `location_postcode`: postcode
 - `location_latitude`: latitude
 - `location_longitude`: longitude
+- `current_landuse_class`: current land use class
+- `current_landuse_group`: current land use group
+- `current_landuse_order`: current land use order
 - `building_attachment_form`: building attachment form
+- `date_change_building_use`: year of last building use change
 - `date_year`: year built
 - `date_lower`: lower bound on year built
 - `date_upper`: upper bound on year built

maintenance/extract_data/export_attributes.sql

@@ -11,7 +11,11 @@ COPY (SELECT
     location_postcode,
     location_latitude,
     location_longitude,
+    current_landuse_class,
+    current_landuse_group,
+    current_landuse_order,
     building_attachment_form,
+    date_change_building_use,
     date_year,
     date_lower,
     date_upper,