Coalesce get organization members results (#1397)

Signed-off-by: Sergio Castaño Arteaga <tegioz@icloud.com>

database/migrations/functions/organizations/get_organization_members.sql

@@ -20,12 +20,12 @@ begin
         where o.name = p_org_name
     )
     select
-        json_agg(json_strip_nulls(json_build_object(
+        coalesce(json_agg(json_strip_nulls(json_build_object(
             'alias', alias,
             'first_name', first_name,
             'last_name', last_name,
             'confirmed', confirmed
-        ))),
+        ))), '[]'),
         (select count(*) from organization_members)
     from (
         select *

database/tests/functions/organizations/get_organization_members.sql

@@ -1,6 +1,6 @@
 -- Start transaction and plan tests
 begin;
-select plan(3);
+select plan(4);
 
 -- Declare some variables
 \set user1ID '00000000-0000-0000-0000-000000000001'
@@ -67,6 +67,16 @@ select results_eq(
     $$,
     'Limit and offset of 1 used, member user2 returned'
 );
+select results_eq(
+    $$
+        select data::jsonb, total_count::integer
+        from get_organization_members('00000000-0000-0000-0000-000000000001', 'org1', 0, 2)
+    $$,
+    $$
+        values ('[]'::jsonb, 2)
+    $$,
+    'No members expected when using an offset of 2'
+);
 select throws_ok(
     $$ select * from get_organization_members('00000000-0000-0000-0000-000000000001', 'org2', 0, 0) $$,
     42501,