method

to_fs

v7.1.3.2 - Show latest stable - 0 notes - Class: Array

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0 (0)
7.1.3.2 (38)
7.1.3.4 (0)
What's this?

to_fs(format = :default) public

Extends Array#to_s to convert a collection of elements into a comma separated id list if :db argument is given as the format.

This method is aliased to to_formatted_s.

Blog.all.to_fs(:db)  # => "1,2,3"
Blog.none.to_fs(:db) # => "null"
[1,2].to_fs          # => "[1, 2]"

Show source

# File activesupport/lib/active_support/core_ext/array/conversions.rb, line 94
  def to_fs(format = :default)
    case format
    when :db
      if empty?
        "null"
      else
        collect(&:id).join(",")
      end
    else
      to_s
    end
  end

to_fs

Related methods