Method: Puppet::Type.title_patterns

Defined in:
lib/puppet/type.rb

.title_patterns ⇒ Array<Array<Regexp, Array<Array <Symbol, Proc>>>>?

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Note:

Advanced: some logic requires this mapping to be done differently, using a different validation/pattern, breaking up the title into several parts assigning each to an individual attribute, or even use a composite identity where all namevars are seen as part of the unique identity (such computation is done by the #uniqueness method. These advanced options are rarely used (only one of the built in puppet types use this, and then only a small part of the available functionality), and the support for these advanced mappings is not implemented in a straight forward way. For these reasons, this method has been marked as private).

Returns a mapping from the title string to setting of attribute values. This default implementation provides a mapping of title to the one and only namevar present in the type’s definition.

Returns:

  • (Array<Array<Regexp, Array<Array <Symbol, Proc>>>>, nil) —

    a structure with a regexp and the first key_attribute ???

Raises:

  • (Puppet::DevError) —

    if there is no title pattern and there are two or more key attributes



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# File 'lib/puppet/type.rb', line 430

def self.title_patterns
  case key_attributes.length
  when 0; []
  when 1;
    [[/(.*)/m, [[key_attributes.first]]]]
  else
    raise Puppet::DevError, _("you must specify title patterns when there are two or more key attributes")
  end
end