PG::ReadOnlySqlTransaction: 错误：无法在只读事务中执行 SELECT

[bts (Brendan Schlagel)]

我还没用过它，但如果是为了运行直接的 SQL 查询，我相信这就是你要找的！ —

New official direct SQL access API for Discourse (mini_sql)

I just finished “officializing” and “extracting” our direct DB access helpers in Discourse. I would like to cover what was done and what this means to plugin authors and core contributors. From the very first version of Discourse, @eviltrout introduced some helpers internally for safely executing direct SQL in Discourse. It looked like this. ActiveRecord::Base.exec_sql("select * from topics where id = :id", id: 1) # or Topic.exec_sql("select * from topics where id = :id", id: 1) This is a p…