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Contents
module Martyr
module Runtime
class PivotAxis
include ActiveModel::Model
attr_accessor :grain_elements
attr_reader :values
def inspect
grain_elements.inspect
end
def ids
grain_elements.map(&:id)
end
# = CSV
# Run on column axis only
def add_header_column_cells_to_csv(csv, row_axis)
grain_elements.each do |grain|
prev_value = nil
column_values = values.map do |x|
# #chomp is just a trick to avoid removing consecutive (total)
prev_value.try(:chomp, PivotCell::TOTAL_VALUE) == x[grain.id] ? nil : prev_value = x[grain.id]
end
csv << row_axis.csv_empty_row_axis_cells + column_values
end
end
# Run on row axis only
def csv_empty_row_axis_cells
[nil] * grain_elements.length
end
# @return [Array<Hash>] where each hash is of format {level_id_1 => value_1, ... }
def load_values(cells, reset: false)
@values = nil if reset
@values ||= cells.map { |cell| hash_grain_value_for(cell) }.uniq
end
def index_values_lookup
@index_values_lookup ||= Hash[values.each_with_index.map{|value_hash, i| [value_hash, i]}]
end
def sort_cells_by_values(cells)
cells.sort_by{|cell| index_values_lookup[hash_grain_value_for(cell)]}
end
def flat_values_nil_hash
Hash[values.map{|hash| [hash.values.join(' : '), nil]}]
end
def hash_values_nil_hash
Hash[values.map{|x| [x, nil]}]
end
def flat_grain_value_for(cell)
grain_elements.map{ |grain| grain.cell_value(cell) }.join(' : ')
end
def hash_grain_value_for(cell)
Hash[grain_elements.map{ |grain| [grain.id, grain.cell_value(cell)] }]
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems