chore: update existing analytics_logs allow_list_answers to be an object

- Convert from an array of objects to a single object
- Currently we have no records in prod where the [allow_list_answers is longer than 1](https://metabase.editor.planx.uk/question/354-number-of-analytics-logs-with-allow-list-answers-greater-than-1) so we can use this to convert
- Update the `analytics_summary` db view to handle the change to the data structure

hasura.planx.uk/migrations/1711643574155_update_analytics_logs_allow_list_answers_array_to_object/down.sql

@@ -0,0 +1,72 @@
+-- Update the data structure of allow_list_answers to revert it to an array of objects
+
+UPDATE public.analytics_logs
+SET allow_list_answers = jsonb_build_array(allow_list_answers)
+WHERE jsonb_typeof(allow_list_answers) != 'array';
+
+-- Previous instance of view from hasura.planx.uk/migrations/1711457331702_alter_view_public_analytics_summary_split_allow_list_answers_into_columns/up.sql
+DROP VIEW public.analytics_summary;
+
+CREATE
+OR REPLACE VIEW public.analytics_summary AS
+select
+	a.id as analytics_id,
+	al.id as analytics_log_id,
+	f.slug as service_slug,
+	t.slug as team_slug,
+	a.type as analytics_type,
+	al.created_at as analytics_log_created_at,
+	a.created_at as analytics_created_at,
+	(user_agent -> 'os' ->> 'name') :: text AS operating_system,
+	(user_agent -> 'browser' ->> 'name') :: text AS browser,
+	(user_agent -> 'platform' ->> 'type') :: text AS platform,
+	referrer,
+	flow_direction,
+	metadata ->> 'change' as change_metadata,
+	metadata ->> 'back' as back_metadata,
+	metadata ->> 'selectedUrls' as selected_urls,
+	metadata ->> 'flag' as result_flag,
+	metadata -> 'flagSet' as result_flagset,
+	metadata -> 'displayText' ->> 'heading' as result_heading,
+	metadata -> 'displayText' ->> 'description' as result_description,
+	case
+		when has_clicked_help then metadata
+		else null
+	end as help_metadata,
+	al.user_exit as is_user_exit,
+	node_type,
+	node_title,
+	has_clicked_help,
+	input_errors,
+	CAST(
+		EXTRACT(
+			EPOCH
+			FROM
+				(al.next_log_created_at - al.created_at)
+		) as numeric (10, 1)
+	) as time_spent_on_node_seconds,
+	a.ended_at as analytics_ended_at,
+	CAST(
+		EXTRACT(
+			EPOCH
+			FROM
+				(a.ended_at - a.created_at)
+		) / 60 as numeric (10, 1)
+	) as time_spent_on_analytics_session_minutes,
+	node_id,
+	al.allow_list_answers as allow_list_answers,
+    allow_list_answer_elements->>'proposal.projectType' AS proposal_project_type,
+    allow_list_answer_elements->>'application.declaration.connection' AS application_declaration_connection,
+    allow_list_answer_elements->>'property.type' AS property_type,
+    allow_list_answer_elements->>'drawBoundary.action' AS draw_boundary_action,
+    allow_list_answer_elements->>'user.role' AS user_role,
+    allow_list_answer_elements->>'property.constraints.planning' AS property_constraints_planning
+from
+	analytics a
+	left join analytics_logs al on a.id = al.analytics_id
+	left join flows f on a.flow_id = f.id
+	left join teams t on t.id = f.team_id
+    left join lateral jsonb_array_elements(al.allow_list_answers) AS allow_list_answer_elements ON true;
+
+--  After recreating the view grant Metabase access to it
+GRANT SELECT ON public.analytics_summary TO metabase_read_only;

hasura.planx.uk/migrations/1711643574155_update_analytics_logs_allow_list_answers_array_to_object/up.sql

@@ -0,0 +1,74 @@
+-- Update the data structure of allow_list_answers to be an object rather than array of objects
+
+UPDATE public.analytics_logs
+SET allow_list_answers = allow_list_answers->0
+WHERE jsonb_typeof(allow_list_answers) = 'array' AND jsonb_array_length(allow_list_answers) = 1;
+
+-- Update the analytics_summary to handle the change to the data structure
+
+DROP VIEW public.analytics_summary;
+
+CREATE
+OR REPLACE VIEW public.analytics_summary AS
+select
+	a.id as analytics_id,
+	al.id as analytics_log_id,
+	f.slug as service_slug,
+	t.slug as team_slug,
+	a.type as analytics_type,
+	al.created_at as analytics_log_created_at,
+	a.created_at as analytics_created_at,
+	(user_agent -> 'os' ->> 'name') :: text AS operating_system,
+	(user_agent -> 'browser' ->> 'name') :: text AS browser,
+	(user_agent -> 'platform' ->> 'type') :: text AS platform,
+	referrer,
+	flow_direction,
+	metadata ->> 'change' as change_metadata,
+	metadata ->> 'back' as back_metadata,
+	metadata ->> 'selectedUrls' as selected_urls,
+	metadata ->> 'flag' as result_flag,
+	metadata -> 'flagSet' as result_flagset,
+	metadata -> 'displayText' ->> 'heading' as result_heading,
+	metadata -> 'displayText' ->> 'description' as result_description,
+	case
+		when has_clicked_help then metadata
+		else null
+	end as help_metadata,
+	al.user_exit as is_user_exit,
+	node_type,
+	node_title,
+	has_clicked_help,
+	input_errors,
+	CAST(
+		EXTRACT(
+			EPOCH
+			FROM
+				(al.next_log_created_at - al.created_at)
+		) as numeric (10, 1)
+	) as time_spent_on_node_seconds,
+	a.ended_at as analytics_ended_at,
+	CAST(
+		EXTRACT(
+			EPOCH
+			FROM
+				(a.ended_at - a.created_at)
+		) / 60 as numeric (10, 1)
+	) as time_spent_on_analytics_session_minutes,
+	node_id,
+	al.allow_list_answers as allow_list_answers,
+    al.allow_list_answers -> 'proposal.projectType' as proposal_project_type,
+    al.allow_list_answers -> 'application.declaration.connection' as application_declaration_connection,
+    al.allow_list_answers -> 'property.type' as property_type,
+    al.allow_list_answers -> 'drawBoundary.action' as draw_boundary_action,
+    al.allow_list_answers -> 'user.role' as user_role,
+    al.allow_list_answers -> 'property.constraints.planning' as property_constraints_planning
+from
+	analytics a
+	left join analytics_logs al on a.id = al.analytics_id
+	left join flows f on a.flow_id = f.id
+	left join teams t on t.id = f.team_id;
+
+--  After recreating the view grant Metabase access to it
+GRANT SELECT ON public.analytics_summary TO metabase_read_only;
+
+