Module: BootstrapRefile::AttachmentHelper

Defined in:
lib/bootstrap_refile/rails/attachment_helper.rb

Overview

Rails view helpers which aid in using Refile from views.

Defined Under Namespace

Modules: FormBuilder

Instance Method Summary collapse

Instance Method Details

#bootstrap_attachment_field(object_name, method, object:, **options) ⇒ ActiveSupport::SafeBuffer

Generates a form field which can be used with records which have attachments. This will generate both a file field as well as a hidden field which tracks the id of the file in the cache before it is permanently stored.

Options Hash (**options):

  • object (Object) —

    Set by the form builder, currently required for direct/presigned uploads to work.

  • direct (Boolean) —

    If set to true, adds the appropriate data attributes for direct uploads with refile.js.

  • presign (Boolean) —

    If set to true, adds the appropriate data attributes for presigned uploads with refile.js.



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# File 'lib/bootstrap_refile/rails/attachment_helper.rb', line 25

def bootstrap_attachment_field(object_name, method, object:, **options)
  file_icons = {
    'default' => 'fa-file-o',
    'pdf' => 'fa-file-pdf-o',
    'xls' => 'fa-file-excel-o',
    'xlsx' => 'fa-file-excel-o',
    'csv' => 'fa-file-excel-o',
    'doc' => 'fa-file-word-o',
    'docx' => 'fa-file-word-o',
    'jpg' => 'fa-file-image-o',
    'jpeg' => 'fa-file-image-o',
    'png' => 'fa-file-image-o',
    'gif' => 'fa-file-image-o'
  }

  options[:remove_class] ||= 'btn-primary'
  options[:select_class] ||= 'btn-primary'
  options[:progress_class] ||= ''

  options[:data] ||= {}

  attachment_name = method.to_s.humanize

  file_exists = (!object["#{method}_id"].nil?)
  file_extension = (file_exists)? File.extname(object["#{method}_filename"].to_s).gsub(/\./, '') : ''
  file_name = (file_exists && !object["#{method}_filename"].to_s.blank?)? object["#{method}_filename"].to_s : 'No file selected'

  image_url = (file_exists)? attachment_url(object, method.to_sym, :fit, 300, 300) : "http://placehold.it/300x200&text=#{attachment_name}"
  image_tag = image_tag(image_url, class: 'preview img-responsive')

  remove_attachment = check_box(object_name, "remove_#{method}".to_sym, { class: 'btn btn-primary' })
  attacher = object.send(:"#{method}_attacher")
  options[:accept] = attacher.accept

  if options[:direct]
    host = options[:host] || Refile.host || request.base_url
    backend_name = Refile.backends.key(attacher.cache)

    url = ::File.join(host, main_app.refile_app_path, backend_name)
    options[:data].merge!(direct: true, as: "file", url: url)
  end

  if options[:presigned] and attacher.cache.respond_to?(:presign)
    options[:data].merge!(direct: true).merge!(attacher.cache.presign.as_json)
  end

  attachment_field = hidden_field(object_name, method, value: attacher.data.to_json, object: object, id: nil)
  attachment_field += file_field(object_name, method, options)

  attachment_icon = (file_exists && file_icons[file_extension])? file_icons[file_extension] : file_icons['default']

  result = "  <div class=\"refile-upload \#{(file_exists)? 'filled' : ''} \#{(!file_extension.blank?)? \"filled-type-\#{file_extension}\" : ''}\">\n    <h4>\#{attachment_name}</h4>\n    <div class=\"row\">\n      <div class=\"col-sm-5\">\n        <span class=\"thumbnail\">\#{image_tag}</span>\n      </div>\n      <div class=\"col-sm-7\">\n        <div class=\"progress\">\n          <div class=\"progress-bar \#{options[:progress_class]}\" role=\"progressbar\" aria-valuenow=\"0\" aria-valuemin=\"0\" aria-valuemax=\"100\">\n            <span class=\"sr-only\">0% Complete</span>\n          </div>\n        </div>\n        <div class=\"file-info\"><i class=\"fa \#{attachment_icon}\"></i> \#{file_name}</div>\n        <span class=\"btn-group btn-remove\" data-toggle=\"buttons\">\n          <label class=\"btn \#{options[:remove_class]}\">\n            Remove \#{attachment_name}\n            \#{remove_attachment}\n          </label>\n        </span>\n        <span class=\"btn \#{options[:select_class]} btn-file\">\n          Select \#{attachment_name}\n          \#{attachment_field}\n        </span>\n      </div>\n    </div>\n  </div>\n"
  return result.html_safe
end