Class: MetadataPresenter::Grid

Inherits:
Object
  • Object
show all
Defined in:
app/models/metadata_presenter/grid.rb

Constant Summary collapse

ROW_ZERO = 
0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(service, start_from: nil, main_flow: []) ⇒ Grid

Returns a new instance of Grid.



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# File 'app/models/metadata_presenter/grid.rb', line 17

def initialize(service, start_from: nil, main_flow: [])
  @service = service
  @start_from = start_from
  @main_flow = main_flow
  @ordered = []
  @routes = []
  @traversed = []
  @coordinates = setup_coordinates
end

Instance Attribute Details

#start_from ⇒ Object (readonly)

Returns the value of attribute start_from.



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# File 'app/models/metadata_presenter/grid.rb', line 15

def start_from
  @start_from
end

Instance Method Details

#build ⇒ Object 



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# File 'app/models/metadata_presenter/grid.rb', line 29

def build
  return @ordered unless @ordered.empty?

  @ordered = make_grid
  add_columns
  add_rows
  add_by_coordinates
  insert_expression_spacers
  trim_pointers unless main_flow.empty?
  trim_spacers

  @ordered = @ordered.reject(&:empty?)
end

#flow_uuids ⇒ Object 



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# File 'app/models/metadata_presenter/grid.rb', line 52

def flow_uuids
  ordered_flow.map(&:uuid)
end

#ordered_flow ⇒ Object 



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# File 'app/models/metadata_presenter/grid.rb', line 43

def ordered_flow
  @ordered_flow ||=
    build.flatten.reject { |obj| obj.is_a?(MetadataPresenter::Spacer) }
end

#ordered_pages ⇒ Object 



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# File 'app/models/metadata_presenter/grid.rb', line 48

def ordered_pages
  @ordered_pages ||= ordered_flow.reject(&:branch?)
end

#page_uuids ⇒ Object 



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# File 'app/models/metadata_presenter/grid.rb', line 56

def page_uuids
  ordered_pages.map(&:uuid)
end