IO-1914 Added inventory page.

hasura/migrations/1654023641223_run_sql_migration/up.sql

@@ -0,0 +1,35 @@
+CREATE OR REPLACE FUNCTION public.search_inventory (search text)
+	RETURNS SETOF inventory
+	LANGUAGE plpgsql
+	STABLE
+	AS $function$
+BEGIN
+	IF search = '' THEN
+		RETURN query
+		SELECT
+			*
+		FROM
+			inventory;
+	ELSE
+		RETURN query
+		SELECT
+			inventory.*
+		FROM
+			inventory  inner JOIN billlines ON inventory.billlineid = billlines.id
+			inner JOIN bills ON billlines.billid = bills.id
+			inner JOIN vendors ON bills.vendorid = vendors.id
+	
+		WHERE
+			 inventory.line_desc ILIKE '%' || search || '%'
+			OR bills.invoice_number ILIKE '%' || search || '%'
+			OR vendors.name ILIKE '%' || search || '%'
+		ORDER BY
+			inventory.line_desc ILIKE '%' || search || '%'
+			OR NULL,
+			bills.invoice_number ILIKE '%' || search || '%'
+			OR NULL,
+			vendors.name ILIKE '%' || search || '%'
+			OR NULL;
+	END IF;
+END
+$function$;