Contents

module UploadColumn::UploadColumnHelper

  # Returns an input tag of the "file" type tailored for accessing an upload_column field
  # (identified by method) on an object assigned to the template (identified by object).
  # Additional options on the input tag can be passed as a hash with options.
  #
  # Example (call, result)
  #     upload_column_field( :user, :picture )
  #       <input id="user_picture_temp" name="user[picture_temp]" type="hidden" />
  #       <input id="user_picture" name="user[picture]" size="30" type="file" />
  #
  # Note: if you use file_field instead of upload_column_field, the file will not be
  # stored across form redisplays.
  def upload_column_field(object, method, options={})
    file_field(object, method, options) + hidden_field(object, method.to_s + '_temp')
  end

  # A helper method for creating a form tag to use with uploadng files,
  # it works exactly like Rails' form_tag, except that :multipart is always true
  def upload_form_tag(url_for_options = {}, options = {}, *parameters_for_url, &proc)
    options[:multipart] = true
    form_tag( url_for_options, options, *parameters_for_url, &proc )
  end

  # A helper method for creating a form tag to use with uploadng files,
  # it works exactly like Rails' form_for, except that :multipart is always true
  def upload_form_for(*args, &block)
    options = args.extract_options!
    options[:html] ||= {}
    options[:html][:multipart] = true
    args.push(options)
  
    form_for(*args, &block)
  end

end

class ActionView::Helpers::FormBuilder #:nodoc:
  self.field_helpers += ['upload_column_field']  
  def upload_column_field(method, options = {})
    @template.send(:upload_column_field, @object_name, method, options.merge(:object => @object))
  end
end

ActionView::Base.send(:include, UploadColumn::UploadColumnHelper)

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
uploadcolumn-0.3.4	lib/upload_column/rails/upload_column_helper.rb
uploadcolumn-0.3.3	lib/upload_column/rails/upload_column_helper.rb
uploadcolumn-0.3.2	lib/upload_column/rails/upload_column_helper.rb
uploadcolumn-0.3.1	lib/upload_column/rails/upload_column_helper.rb
uploadcolumn-0.3.0	lib/upload_column/rails/upload_column_helper.rb