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# frozen_string_literal: true
module Decidim
module ContentParsers
# A parser that searches user mentions in content.
#
# A word starting with `@` will be considered as a possible mention if
# they only contains letters, numbers or underscores.
#
# @see BaseParser Examples of how to use a content parser
class UserParser < TagParser
# Class used as a container for metadata
#
# @!attribute users
# @return [Array] an array of Decidim::User mentioned in content
Metadata = Struct.new(:users)
# Matches a nickname if contains letters, numbers or underscores.
MENTION_REGEX = /\B@(\w*)\b/
# (see BaseParser#metadata)
def metadata
Metadata.new(existing_mentionables)
end
private
def tag_data_type
"mention"
end
def replace_tags(text)
text.gsub(MENTION_REGEX) do |match|
mentionables[match[1..-1].downcase]&.to_global_id&.to_s || match
end
end
def scan_tags(text)
text.scan(MENTION_REGEX)
end
def mentionable_class
Decidim::User
end
def mentionables
@mentionables ||= existing_mentionables.index_by(&:nickname)
end
def existing_mentionables
@existing_mentionables ||= mentionable_class.where(
"decidim_organization_id = ? AND LOWER(nickname) IN (?)",
current_organization.id,
content_nicknames
)
end
def content_nicknames
@content_nicknames ||= content_tags.map(&:downcase)
end
def current_organization
@current_organization ||= context[:current_organization]
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems