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# frozen_string_literal: true
module TailwindDsl
module Etl
# Base class for all ETL data objects that load/persist JSON data
class Element
# Get the value of an argument from a hash
#
# @param args [Hash] The hash of arguments
# @param key [String, Symbol] The key to look up
# @param guard [String] The error message to raise if the key is not found. Guards are optional.
# @param default [Object] The default value to return if the key is not found. Also optional, defaults to nil.
def grab_arg(args, key, guard: nil, default: nil)
value = args[key.to_sym] || args[key.to_s]
raise guard if value.nil? && guard
value || default
end
# Map data to a class
#
# @param klass [Class] The class to map to
# @param data [Hash, Class] The data to map can be hash, an instance of the class or nil
def map_to(klass, data)
return nil if data.nil?
return data if data.is_a?(klass)
return klass.new(**data) if data.is_a?(Hash)
puts "Data of type: #{data.class} cannot be converted to #{klass}"
nil
end
# Add data onto an array
#
# @param target_list [Array] The array to add to
# @param data [Hash, Class] The data to add can be hash or an instance of the class. Nil data will not be added
def add_to_list(klass, target_list, data)
item = map_to(klass, data)
return nil if item.nil?
target_list << item
item
end
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems