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form.rb
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form.rb
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require 'active_support'
require 'active_support/time_with_zone'
module Formulaic
class Form
ATTRIBUTE_INPUT_MAP = {
ActiveSupport::TimeWithZone => Formulaic::Inputs::DateInput,
Date => Formulaic::Inputs::DateInput,
DateTime => Formulaic::Inputs::DateTimeInput,
Array => Formulaic::Inputs::ArrayInput,
String => Formulaic::Inputs::StringInput,
Symbol => Formulaic::Inputs::StringInput,
1.class => Formulaic::Inputs::StringInput,
Float => Formulaic::Inputs::StringInput,
TrueClass => Formulaic::Inputs::BooleanInput,
FalseClass => Formulaic::Inputs::BooleanInput,
File => Formulaic::Inputs::FileInput,
Rack::Multipart::UploadedFile => Formulaic::Inputs::FileInput
}.freeze
def initialize(model_name, action, attributes)
@action = action
@inputs = build_inputs(model_name, attributes)
end
def fill
@inputs.each { |input| input.fill }
end
private
attr_reader :model_name, :inputs, :action
def build_inputs(model_name, attributes)
attributes.map do |field, value|
build_input(model_name, field, value)
end
end
def build_input(model_name, field, value)
label = Label.new(model_name, field, action)
input_class_for(value).new(label, value)
end
def input_class_for(value)
ATTRIBUTE_INPUT_MAP.fetch(value.class) do
raise InvalidAttributeTypeError.new("Formulaic does not know how to fill in a #{value.class} value")
end
end
class InvalidAttributeTypeError < StandardError; end
end
end