How to register model? dynamically after dva upgrades router

after dva upgrade, how to dynamically register model? if you write routes where you need to switch components and are no longer concentrated in one file

Apr.09,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-49bf133-1d03f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-49bf133-1d03f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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