Is there a way to pass params to postgres raw query in rails?

问题

I have a complex raw query where I want to pass params instead of interpolating them

Ex:

query = 
  "SELECT id, abbr as code, name
   FROM states
   WHERE name IN ('#{params[:state].join("','")}')"

ActiveRecord::Base.connection.execute(query)

Is there any way to pass params like the ActiveRecord does

State.where(name: ['Alabama', 'Alaska'])

回答1:

Try find_by_sql:

Post.find_by_sql(["SELECT title FROM posts WHERE author = ? AND created > ?", author_id, start_date])

[#<Post:0x36bff9c @attributes={"title"=>"The Cheap Man Buys Twice"}>, ...]

来源：https://stackoverflow.com/questions/38975247/is-there-a-way-to-pass-params-to-postgres-raw-query-in-rails