Class: Plutonium::Wizard::AttachmentData

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/plutonium/wizard/attachment_data.rb

Overview

Decorates a step's typed data so ATTACHMENT fields READ as resolved, displayable attachments (Plutonium::Wizard::Attachments::Resolved) rather than the raw staged token string — so the step form's Uppy preview rehydrates on Back/resume (it calls .url/.signed_id/.filename, which a bare token string can't answer). Every other field delegates unchanged.

Read-only: the SUBMITTED value is still the token the hidden preview field re-posts (Resolved#signed_id == the original token), so staging is unaffected.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, attachment_fields) ⇒ AttachmentData

Returns a new instance of AttachmentData.



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# File 'lib/plutonium/wizard/attachment_data.rb', line 22

def initialize(data, attachment_fields)
  super(data)
  attachment_fields.each do |name, config|
    multiple = config.dig(:options, :multiple)
    define_singleton_method(name) do
      resolved = Attachments.resolve(__getobj__.public_send(name))
      multiple ? resolved : resolved.first
    end
  end
end

Class Method Details

.wrap(data, step) ⇒ Object

Wrap only when the step actually has an attachment field — otherwise return the data untouched, so the overwhelming majority of steps are unaffected.



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# File 'lib/plutonium/wizard/attachment_data.rb', line 17

def self.wrap(data, step)
  attachment_fields = step.inputs.select { |_name, config| Attachments.field?(config) }
  attachment_fields.any? ? new(data, attachment_fields) : data
end

Instance Method Details

#class ⇒ Object

Masquerade as the wrapped object's class so phlexi still infers field affordances (required marker, maxlength, …) from its validators — it reads object.class.validators_on(...), and a SimpleDelegator would otherwise report its own class and drop every marker on the step.



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# File 'lib/plutonium/wizard/attachment_data.rb', line 37

def class
  __getobj__.class
end