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Contents
require 'active_support'
class LHS::Collection < LHS::Proxy
# Handles pontentially (deep-)nested collections
# Examples:
# [ { name: 'Steve '} ]
# { items: [ { name: 'Steve' } ] }
# { response: { business: [ { name: 'Steve' } ] } }
module HandleNested
extend ActiveSupport::Concern
delegate :access, :nest, :concat, to: :class
module ClassMethods
# Access potentially nested collection of items
def access(input:, record: nil)
input.dig(*items_key(record))
end
# Initializes nested collection
def nest(input:, value: nil, record: nil)
input[items_key(record)] = value
end
# Concats existing nested collection of items
# with given items
def concat(input:, items:, record: nil)
input.dig(*items_key(record)).concat(items)
end
private
# Takes configured items key to access collection of items
# of falls back to the default key
def items_key(record)
record&.items_key || LHS::Record.items_key
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems