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Contents
module Datev
class Base
class << self
attr_accessor :fields, :default_attributes
def inherited(subclass)
subclass.fields = self.fields
subclass.default_attributes = self.default_attributes
end
end
def self.field(name, type, options={}, &block)
self.fields ||= []
# Check if there is already a field with the same name
if field_by_name(name)
raise ArgumentError.new("Field '#{name}' already exists")
end
field_class = const_get("Datev::#{type.to_s.capitalize}Field")
self.fields << field_class.new(name, options, &block)
end
def self.field_by_name(name)
self.fields.find { |f| f.name == name }
end
def initialize(attributes)
raise ArgumentError.new('Hash required') unless attributes.is_a?(Hash)
@attributes = self.class.default_attributes || {}
# Check existing names and set value (if valid)
attributes.each_pair do |name,value|
unless field = self.class.field_by_name(name)
raise ArgumentError.new("Field '#{name}' not found")
end
field.validate!(value)
@attributes[name] = value
end
# Check for missing values
self.class.fields.select(&:required?).each do |field|
if @attributes[field.name].nil?
raise ArgumentError.new("Value for field '#{field.name}' is required but missing")
end
end
end
def [](name)
field = self.class.field_by_name(name)
raise ArgumentError.new("Field '#{name}' not found") unless field
@attributes[field.name]
end
def output(context=nil)
self.class.fields.map do |field|
value = @attributes[field.name]
field.output(value, context)
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems