How do I escape Ruby string interpolation?

Question

Given this code:

has_many :foos, :finder_sql = <<-SQL
  select * from foos where bars = #{id}
SQL

The #{id} part is being prematurely interpolated.

How do I escape it?

Answer 1

Put single quotes around the delimiter:

has_many :foos, :finder_sql = <<-'SQL'
  select * from foos where bars = #{id}
SQL