Module: CarrierWave::CardMount

Includes:
Mount
Defined in:
card-mod-carrierwave/lib/carrier_wave/card_mount.rb

Overview

adapt carrierwave mount to cards

Instance Method Summary collapse

Instance Method Details

#mount_uploader(column, uploader = nil, options = {}, &block) ⇒ Object



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# File 'card-mod-carrierwave/lib/carrier_wave/card_mount.rb', line 16

def mount_uploader column, uploader=nil, options={}, &block
  options[:mount_on] ||= :db_content
  super

  class_eval <<-RUBY, __FILE__, __LINE__ + 1
    event :store_#{column}_event, :finalize,
          on: :save, when: :store_#{column}_event? do
      store_#{column}!
    end

    # remove files only if card has no history
    event :remove_#{column}_event, :finalize,
          on: :delete, when: proc { |c| !c.history? } do
      remove_#{column}!
    end

    event :mark_remove_#{column}_false_event, :finalize,
          on: :update do
      mark_remove_#{column}_false
    end

    event :store_previous_changes_for_#{column}_event, :store,
          on: :update, when: proc { |c| !c.history? } do
      store_previous_changes_for_#{column}
    end

    event :remove_previously_stored_#{column}_event, :finalize,
          on: :update, when: proc { |c| !c.history?} do
      remove_previously_stored_#{column}
    end

    # don't attempt to store coded images unless ENV specifies it
    def store_#{column}_event?
      !coded? || ENV["STORE_CODED_FILES"]
    end

    def attachment
      #{column}
    end

    def store_attachment!
      store_#{column}!
    end

    def attachment_name
      "#{column}".to_sym
    end

    def read_uploader *args
      read_attribute *args
    end

    def write_uploader *args
      write_attribute *args
    end

    def #{column}=(new_file)
      return if new_file.blank?
      self.selected_action_id = Time.now.to_i unless history?
      assign_file(new_file) { super }
    end

    def remote_#{column}_url=(url)
      assign_file(url) { super }
    end

    def assign_file file
      db_column = _mounter(:#{column}).serialization_column
      send(:"\#{db_column}_will_change!") # unless attribute_is_changing? db_column
      if web?
        self.content = file
      else
        send(:"#{column}_will_change!")
        yield
      end
    end

    def remove_#{column}=(value)
      column = _mounter(:#{column}).serialization_column
      send(:"\#{column}_will_change!")
      super
    end

    def remove_#{column}!
      self.remove_#{column} = true
      write_#{column}_identifier
      self.remove_#{column} = false
      super
    end

    def #{column}_will_change!
      @#{column}_changed = true
      @#{column}_is_changing = true
    end

    def #{column}_is_changing?
      @#{column}_is_changing
    end

    def #{column}_changed?
      @#{column}_changed
    end

    def serializable_hash(options=nil)
      hash = {}

      except = options && options[:except] &&
               Array.wrap(options[:except]).map(&:to_s)
      only   = options && options[:only]   &&
               Array.wrap(options[:only]).map(&:to_s)

      self.class.uploaders.each do |column, uploader|
        if (!only && !except) || (only && only.include?(column.to_s)) ||
           (!only && except && !except.include?(column.to_s))
          hash[column.to_s] = _mounter(column).uploader.serializable_hash
        end
      end
      super(options).merge(hash)
    end
  RUBY
end

#uploader_optionsObject



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# File 'card-mod-carrierwave/lib/carrier_wave/card_mount.rb', line 12

def uploader_options
  Card.uploader_options ||= {}
end

#uploadersObject



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# File 'card-mod-carrierwave/lib/carrier_wave/card_mount.rb', line 8

def uploaders
  Card.uploaders ||= {}
end