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Action Text Content

The ActionText::Content class wraps an HTML fragment to add support for parsing, rendering and serialization. It can be used to extract links and attachments, convert the fragment to plain text, or serialize the fragment to the database.

The ActionText::RichText record serializes the ‘body` attribute as 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!"
Methods
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Attributes

[R] fragment

Class Public methods

fragment_by_canonicalizing_content(content)

# File rails/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

new(content = nil, options = {})

# File rails/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

Instance Public methods

==(other)

# File rails/actiontext/lib/action_text/content.rb, line 146
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

append_attachables(attachables)

# File rails/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

as_json(*)

# File rails/actiontext/lib/action_text/content.rb, line 138
def as_json(*)
  to_html
end

attachables()

Extracts +ActionText::Attachable+s from the HTML fragment:

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 rails/actiontext/lib/action_text/content.rb, line 84
def attachables
  @attachables ||= attachment_nodes.map do |node|
    ActionText::Attachable.from_node(node)
  end
end

attachment_galleries()

# File rails/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

attachments()

Extracts +ActionText::Attachment+s from the HTML fragment:

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 rails/actiontext/lib/action_text/content.rb, line 62
def attachments
  @attachments ||= attachment_nodes.map do |node|
    attachment_for_node(node)
  end
end

inspect()

# File rails/actiontext/lib/action_text/content.rb, line 142
def inspect
  "#<#{self.class.name} #{to_html.truncate(25).inspect}>"
end

Extracts links from the HTML fragment:

html = '<a href="http://example.com/">Example</a>'
content = ActionText::Content.new(html)
content.links # => ["http://example.com/"]

render_attachment_galleries(&block)

# File rails/actiontext/lib/action_text/content.rb, line 103
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

render_attachments(**options, &block)

# File rails/actiontext/lib/action_text/content.rb, line 95
def render_attachments(**options, &block)
  content = fragment.replace(ActionText::Attachment.tag_name) do |node|
    node["content"] = sanitize_content_attachment(node["content"])
    block.call(attachment_for_node(node, **options))
  end
  self.class.new(content, canonicalize: false)
end

to_html()

# File rails/actiontext/lib/action_text/content.rb, line 122
def to_html
  fragment.to_html
end

to_partial_path()

# File rails/actiontext/lib/action_text/content.rb, line 130
def to_partial_path
  "action_text/contents/content"
end

to_plain_text()

Returns the content as plain text with all HTML tags removed.

content = ActionText::Content.new("<h1>Funny times!</h1>")
content.to_plain_text # => "Funny times!"
# File rails/actiontext/lib/action_text/content.rb, line 114
def to_plain_text
  render_attachments(with_full_attributes: false, &:to_plain_text).fragment.to_plain_text
end

to_rendered_html_with_layout()

# File rails/actiontext/lib/action_text/content.rb, line 126
def to_rendered_html_with_layout
  render layout: "action_text/contents/content", partial: to_partial_path, formats: :html, locals: { content: self }
end

to_s()

# File rails/actiontext/lib/action_text/content.rb, line 134
def to_s
  to_rendered_html_with_layout
end

to_trix_html()

# File rails/actiontext/lib/action_text/content.rb, line 118
def to_trix_html
  render_attachments(&:to_trix_attachment).to_html
end