Ruby on rails 在ActiveRecord中使用SQL函数和_Ruby On Rails_Ruby_Postgresql_Activerecord

Ruby on rails 在ActiveRecord中使用SQL函数和

ruby-on-rails ruby postgresql activerecord

Ruby on rails 在ActiveRecord中使用SQL函数和,ruby-on-rails,ruby,postgresql,activerecord,Ruby On Rails,Ruby,Postgresql,Activerecord,我正试着做类似的事情 SELECT * FROM workers w WHERE lower(w.name) IN ('david', 'will', 'tom') 我将ActiveRecord和postgresDB与ruby（v2+）和rails（v4+）一起使用我试着： Worker.select("lower(trim(name)) as n").where({ n: ['david', 'will', 'tom'] }).all 而且 Worker.where("lower(tri

我正试着做类似的事情

SELECT *
FROM workers w
WHERE lower(w.name) IN ('david', 'will', 'tom')

我将ActiveRecord和postgresDB与ruby（v2+）和rails（v4+）一起使用我试着：

Worker.select("lower(trim(name)) as n").where({ n: ['david', 'will', 'tom'] }).all

而且

Worker.where("lower(trim(name))=:name", { name: ['david', 'will', 'tom'] }).all

但似乎什么都不管用。有什么帮助吗？谢谢

这样试试

Worker.where("lower(trim(name)) IN (?)", ['david', 'will', 'tom'])

这样试试

Worker.where("lower(trim(name)) IN (?)", ['david', 'will', 'tom'])