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?

@streetparade: Not true. HereDocs do not have comments... in fact, their entire purpoase is so that you can ignore formatting. However, they act like double-quoted strings (So #{code} is executed). mckeed's method tells ruby to treat the HereDoc like a single-quoted string. — Myrddin Emrys
– Myrddin Emrys, Commented Jan 12, 2010 at 23:34
see also railsblaster.wordpress.com/2007/08/27/has_many-finder_sql — Mike Woodhouse
– Mike Woodhouse, Commented Jan 13, 2010 at 9:58

mckeed · Accepted Answer · 2010-01-12 21:58:12Z

12

Put single quotes around the delimiter:

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

answered Jan 12, 2010 at 21:58

mckeed

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