How can I make an 'OR' statement in ActiveRecord?

Question

I am trying to create an \'OR\' sql statement in ActiveRecord 3, I tried all kinds of variations but can\'t figure it out...

For example I want this query to include

Answer 1

Try this:

Post.where("posts.user = ? OR posts.channel_id IN (?)", "mike", ids)

Answer 2

Use the Arel methods to do this:

t = Post.arel_table
ids = [1,2,3]

Post.where(
  t[:user].eq("mike").or(t[:channel_id].in(ids))
)