Merge branch 'release_v1_api_functions' into release_v1_api_functions_add_boundary_functions

src/pg/sql/42_observatory_exploration.sql

@@ -1,4 +1,3 @@
-
 -- return a table that contains a string match based on input
 -- TODO: implement search for timespan
 
@@ -42,3 +41,79 @@ BEGIN
 
 END;
 $$ LANGUAGE plpgsql IMMUTABLE;
+
+-- Functions used to search the observatory for measures
+--------------------------------------------------------------------------------
+-- TODO allow the user to specify the boundary to search for measures
+--
+
+CREATE OR REPLACE FUNCTION cdb_observatory.OBS_Search(
+  search_term text,
+  relevant_boundary text DEFAULT null
+)
+RETURNS TABLE(id text, description text, name text, aggregate text, source text)  as $$
+DECLARE
+  boundary_term text;
+BEGIN
+  IF relevant_boundary then
+    boundary_term = '';
+  else
+    boundary_term = '';
+  END IF;
+
+  RETURN QUERY
+  EXECUTE format($string$
+              SELECT id, description,
+                name,
+                  aggregate,
+                  replace(split_part(id,'".', 1),'"', '') source
+                  FROM observatory.OBS_column
+                  where name ilike     '%%' || %L || '%%'
+                  or description ilike '%%' || %L || '%%'
+                  %s
+                $string$, search_term, search_term,boundary_term);
+  RETURN;
+END
+$$ LANGUAGE plpgsql;
+
+
+-- Functions to return the geometry levels that a point is part of
+--------------------------------------------------------------------------------
+-- TODO add test response
+
+CREATE OR REPLACE FUNCTION OBS_GetAvailableBoundaries(
+  geom geometry,
+  timespan text DEFAULT null)
+RETURNS TABLE(boundary_id text, description text, time_span text, tablename text)  as $$
+DECLARE
+  timespan_query TEXT DEFAULT '';
+BEGIN
+
+  IF time_span != null THEN
+    timespan_query = format('AND timespan = %L', time_span);
+  END IF;
+
+  RETURN QUERY
+  EXECUTE
+  $string$
+      select
+        column_id,
+        obs_column.description,
+        timespan,
+        tablename
+      FROM
+        observatory.OBS_table,
+        observatory.OBS_column_table,
+        observatory.OBS_column
+      WHERE
+        observatory.OBS_column_table.column_id = observatory.obs_column.id AND
+        observatory.OBS_column_table.table_id = observatory.obs_table.id
+      AND
+        observatory.OBS_column.type='Geometry'
+      AND
+        $1 && bounds::box2d
+  $string$ || timespan_query
+  USING geom
+  RETURN;
+END
+$$ LANGUAGE plpgsql;