Class: Parliament::Utils::Helpers::RoleGroupingHelper

Inherits:
Object
  • Object
show all
Extended by:
GroupingHelper
Defined in:
lib/parliament/utils/helpers/role_grouping_helper.rb

Defined Under Namespace

Classes: RoleGroupedObject

Class Method Summary collapse

Methods included from GroupingHelper

create_sorted_array, group, group_data

Class Method Details

.create_grouped_objects(data_hash, key) ⇒ Array

Creates new GroupingHelper::GroupedObject, for each set of Grom::Nodes that have been grouped (nodes) Each instance of GroupingHelper::GroupedObject is assigned properties of start_date, end_date, nodes and type Once object has been created, calls sort_grouped_nodes_by_date method to sort that object’s nodes by date

Parameters:

  • data_hash (Hash) —

    Keys identify grouping, with each value being an array of grouped, ungrouped and unknown Grom::Nodes

  • key (String) —

    Key identifies grouping of Grom::Nodes

Returns:

  • (Array) —

    with instances of GroupingHelper::GroupedObject



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# File 'lib/parliament/utils/helpers/role_grouping_helper.rb', line 23

def self.create_grouped_objects(data_hash, key)
  grouped = []

  grouped_object = RoleGroupingHelper::RoleGroupedObject.new
  grouped_object.nodes = data_hash[key]

  start_date = nil
  end_date = nil
  current_nodes = []

  grouped_object.nodes.each do |node|
    # Find nodes that represents current roles
    current_nodes << node if node.try(:end_date).nil? || node.end_date.nil?
    # Find earliest start date and latest end date
    start_date = node.start_date if start_date.nil? || node.start_date < start_date
    end_date = node.end_date if current_nodes.empty? && (end_date.nil? || node.end_date > end_date)
  end

  # Set properties of the object
  # TODO: Might need to adjust to allow for multiple roles roles and memberships of a committee
  grouped_object.type = grouped_object.nodes.first.type
  grouped_object.start_date = start_date
  grouped_object.end_date = current_nodes.empty? ? end_date : nil

  # Add sorted object to the array
  sort_grouped_nodes_by_date(grouped_object, current_nodes)
  grouped << grouped_object
end

.sort_grouped_nodes_by_date(grouped_object, current_nodes) ⇒ Instance object

Sorts an array of grouped Grom::Nodes by end date, placing the most current Grom::Node at the start of the array

Parameters:

  • grouped_object (Instance object) —

    Instance of GroupingHelper::GroupedObject

  • current_node (Grom::Node) —

    Grom::Node with no end date (representing current)

Returns:

  • (Instance object) —

    Returns the same instance, with nodes sorted by end date



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# File 'lib/parliament/utils/helpers/role_grouping_helper.rb', line 57

def self.sort_grouped_nodes_by_date(grouped_object, current_nodes)
  grouped_object.nodes -= current_nodes unless current_nodes.empty?
  grouped_object.nodes.sort_by!(&:end_date).reverse!
  grouped_object.nodes.unshift(current_nodes).flatten! unless current_nodes.empty?
end