Module: Glassfrog::Graph

Defined in:
lib/glassfrog/utils/graph.rb

Overview

Encapsulates utilities for building a circle hierarchy based on supporting roles/supported circles.

Class Method Summary collapse

Class Method Details

.hierarchy(client, circles = nil, roles = nil) ⇒ Glassfrog::Circle

Populates each circle’s sub_circles array with its respective sub circles. This done by finding all of the supporting roles and the circle to which they belong.

Parameters:

  • client (Glassfrog::Client) —

    Client used to make the get requests (unless circles and roles are provided).

  • circles=nil (Array<Glassfrog::Circle>) —

    Array of circle objects (used instead of a get request).

  • roles=nil (Array<Glassfrog::Role>) —

    Array of role objects (used instead of a get request).

Returns:



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# File 'lib/glassfrog/utils/graph.rb', line 25

def self.hierarchy(client, circles=nil, roles=nil)
  circles ||= client.get(:circles)
  roles ||= client.get(:roles)
  circle_hash, role_hash = Hash[circles.map { |circle| [circle.id, circle] }], Hash[client.get(:roles).map { |role| [role.id, role] }]
  sub_circles = circles.select { |circle| circle.links[:supported_role].is_a? Fixnum }
  sub_circles_hash = Hash[sub_circles.map { |circle| [circle, circle_hash[role_hash[circle.links[:supported_role]].links[:circle]]] }]
  sub_circles_hash.each do |sub_circle, parent_circle| 
      (parent_circle.sub_circles ? parent_circle.sub_circles.push(sub_circle) : parent_circle.sub_circles = [sub_circle]) if parent_circle
  end
  root(circles, roles)
end

.root(circles, roles) ⇒ Glassfrog::Circle

Finds the root of the ‘circle tree’ by finding the role that does not belong to a circle.

Parameters:

  • circles (Array<Glassfrog::Circle>) —

    Array of circle objects (e.g. returned from GET or post-hierarchy build).

  • roles (Array<Glassfrog::Role>) —

    Array of role objects (e.g. returned from GET).

Returns:



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# File 'lib/glassfrog/utils/graph.rb', line 12

def self.root(circles, roles)
  root_role = roles.select { |role| role.links[:circle].nil? }.first
  circles.select { |circle| circle.id == root_role.links[:supporting_circle] }.first
end