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Versions: 9
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Stored size: 1.9 KB
Contents
# frozen_string_literal: true
require 'csv'
require 'active_support/core_ext/hash/indifferent_access'
require_relative '../base_adapter'
require_relative '../base_processor'
class ActiveSet
class TransformProcessor < BaseProcessor
class CSVAdapter < BaseAdapter
def process
return_set(transformed_set)
end
private
def transformed_set
::CSV.generate do |output|
output << column_keys_for(item: @set.first)
@set.each do |item|
output << column_values_for(item: item)
end
end
end
def column_keys_for(item:)
columns.map do |column|
ColumnInstruction.new(column, item).key
end
end
def column_values_for(item:)
columns.map do |column|
ColumnInstruction.new(column, item).value
end
end
def columns
@instruction.compact
end
class ColumnInstruction
def initialize(hash, item)
@hash = hash.with_indifferent_access
@item = item
end
def key
return @hash[:key] if @hash.key? :key
return attribute_model.human_attribute_name(instruction_entry.attribute) if attribute_model.respond_to? :human_attribute_name
instruction_entry.titleized
end
def value
return blank unless @hash.key?(:value)
return @hash[:value].call(@item) if @hash[:value]&.respond_to? :call
instruction_entry.value_for(item: @item)
end
private
def instruction_entry
Instructions::Entry.new(@hash[:value], nil)
end
def attribute_model
instruction_entry.associations_array
.reduce(@item) do |obj, assoc|
obj&.send(assoc)
end.class
end
def blank
'—'
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems