класс ActionText::Content
Контент Action Text
Класс ActionText::Content оборачивает фрагмент HTML для добавления поддержки парсинга, рендеринга и сериализации. Он может использоваться для извлечения ссылок и вложений, преобразования фрагмента в обычный текст или сериализации фрагмента в базу данных.
Запись ActionText::RichText сериализует атрибут `body` как ActionText::Content.
class Message < ActiveRecord::Base has_rich_text :content end message = Message.create!(content: "<h1>Funny times!</h1>") body = message.content.body # => #<ActionText::Content "<div class=\"trix-conte..."> body.to_s # => "<h1>Funny times!</h1>" body.to_plain_text # => "Funny times!"
Атрибуты
fragment[R]
Публичные методы класса
# File actiontext/lib/action_text/content.rb, line 30 def fragment_by_canonicalizing_content(content) fragment = ActionText::Attachment.fragment_by_canonicalizing_attachments(content) fragment = ActionText::AttachmentGallery.fragment_by_canonicalizing_attachment_galleries(fragment) fragment end
# File actiontext/lib/action_text/content.rb, line 37
def initialize(content = nil, options = {})
options.with_defaults! canonicalize: true
if options[:canonicalize]
@fragment = self.class.fragment_by_canonicalizing_content(content)
else
@fragment = ActionText::Fragment.wrap(content)
end
end Общедоступные методы экземпляра
# File actiontext/lib/action_text/content.rb, line 145
def ==(other)
if self.class == other.class
to_html == other.to_html
elsif other.is_a?(self.class)
to_s == other.to_s
end
end # File actiontext/lib/action_text/content.rb, line 90
def append_attachables(attachables)
attachments = ActionText::Attachment.from_attachables(attachables)
self.class.new([self.to_s.presence, *attachments].compact.join("\n"))
end # File actiontext/lib/action_text/content.rb, line 137 def as_json(*) to_html end
# File actiontext/lib/action_text/content.rb, line 84
def attachables
@attachables ||= attachment_nodes.map do |node|
ActionText::Attachable.from_node(node)
end
end Извлекает +ActionText::Attachable+ из фрагмента HTML:
attachable = ActiveStorage::Blob.first
html = %Q(<action-text-attachment sgid="#{attachable.attachable_sgid}" caption="Captioned"></action-text-attachment>)
content = ActionText::Content.new(html)
content.attachables # => [attachable]
# File actiontext/lib/action_text/content.rb, line 68
def attachment_galleries
@attachment_galleries ||= attachment_gallery_nodes.map do |node|
attachment_gallery_for_node(node)
end
end # File actiontext/lib/action_text/content.rb, line 62
def attachments
@attachments ||= attachment_nodes.map do |node|
attachment_for_node(node)
end
end Извлекает +ActionText::Attachment+ из фрагмента HTML:
attachable = ActiveStorage::Blob.first
html = %Q(<action-text-attachment sgid="#{attachable.attachable_sgid}" caption="Captioned"></action-text-attachment>)
content = ActionText::Content.new(html)
content.attachments # => [#<ActionText::Attachment attachable=#<ActiveStorage::Blob...
# File actiontext/lib/action_text/content.rb, line 74 def gallery_attachments @gallery_attachments ||= attachment_galleries.flat_map(&:attachments) end
# File actiontext/lib/action_text/content.rb, line 141
def inspect
"#<#{self.class.name} #{to_html.truncate(25).inspect}>"
end # File actiontext/lib/action_text/content.rb, line 52
def links
@links ||= fragment.find_all("a[href]").map { |a| a["href"] }.uniq
end Извлекает ссылки из фрагмента HTML:
html = '<a href="http://example.com/">Example</a>' content = ActionText::Content.new(html) content.links # => ["http://example.com/"]
# File actiontext/lib/action_text/content.rb, line 102
def render_attachment_galleries(&block)
content = ActionText::AttachmentGallery.fragment_by_replacing_attachment_gallery_nodes(fragment) do |node|
block.call(attachment_gallery_for_node(node))
end
self.class.new(content, canonicalize: false)
end # File actiontext/lib/action_text/content.rb, line 95
def render_attachments(**options, &block)
content = fragment.replace(ActionText::Attachment.tag_name) do |node|
block.call(attachment_for_node(node, **options))
end
self.class.new(content, canonicalize: false)
end # File actiontext/lib/action_text/content.rb, line 121 def to_html fragment.to_html end
# File actiontext/lib/action_text/content.rb, line 129 def to_partial_path "action_text/contents/content" end
# File actiontext/lib/action_text/content.rb, line 113 def to_plain_text render_attachments(with_full_attributes: false, &:to_plain_text).fragment.to_plain_text end
Возвращает содержимое в виде простого текста со всеми тегами HTML, удалёнными.
content = ActionText::Content.new("<h1>Funny times!</h1>")
content.to_plain_text # => "Funny times!"
# File actiontext/lib/action_text/content.rb, line 125
def to_rendered_html_with_layout
render layout: "action_text/contents/content", partial: to_partial_path, formats: :html, locals: { content: self }
end # File actiontext/lib/action_text/content.rb, line 133 def to_s to_rendered_html_with_layout end
# File actiontext/lib/action_text/content.rb, line 117 def to_trix_html render_attachments(&:to_trix_attachment).to_html end
© 2004–2021 David Heinemeier Hansson
Licensed under the MIT License.