instance method `to_param`

Ruby on Rails 3.0.20

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

to_param(namespace = nil)

Converts a hash into a string suitable for use as a URL query string. An optional namespace can be passed to enclose the param names (see example below). The string pairs “key=value” that conform the query string are sorted lexicographically in ascending order.

Examples

{ :name => 'David', :nationality => 'Danish' }.to_param # => "name=David&nationality=Danish"

{ :name => 'David', :nationality => 'Danish' }.to_param('user') # => "user[name]=David&user[nationality]=Danish"

Parameters

namespace opt = nil

Source

# File activesupport/lib/active_support/core_ext/object/to_param.rb, line 45
  def to_param(namespace = nil)
    collect do |key, value|
      value.to_query(namespace ? "#{namespace}[#{key}]" : key)
    end.sort * '&'
  end

Defined in activesupport/lib/active_support/core_ext/object/to_param.rb line 45 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

Signature

Examples

Parameters