article.rb
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class Article < ApplicationRecord
include SanitizeHelper
attr_accessible :name, :body, :abstract, :profile, :tag_list, :parent,
:allow_members_to_edit, :translation_of_id, :language,
:license_id, :parent_id, :display_posts_in_current_language,
:category_ids, :posts_per_page, :moderate_comments,
:accept_comments, :feed, :published, :source, :source_name,
:highlighted, :notify_comments, :display_hits, :slug,
:external_feed_builder, :display_versions, :external_link,
:image_builder, :show_to_followers, :archived,
:author, :display_preview, :published_at, :person_followers
extend ActsAsHavingImage::ClassMethods
acts_as_having_image
include Noosfero::Plugin::HotSpot
SEARCHABLE_FIELDS = {
:name => {:label => _('Name'), :weight => 10},
:abstract => {:label => _('Abstract'), :weight => 3},
:body => {:label => _('Content'), :weight => 2},
:slug => {:label => _('Slug'), :weight => 1},
:filename => {:label => _('Filename'), :weight => 1},
}
SEARCH_FILTERS = {
:order => %w[more_recent more_popular more_comments],
:display => %w[full]
}
N_('article')
def initialize(*params)
super
if params.present? && params.first.present?
if params.first.symbolize_keys.has_key?(:published)
self.published = params.first.symbolize_keys[:published]
elsif params.first[:profile].present? && !params.first[:profile].public_profile
self.published = false
end
end
end
def self.default_search_display
'full'
end
#FIXME This is necessary because html is being generated on the model...
include ActionView::Helpers::TagHelper
# use for internationalizable human type names in search facets
# reimplement on subclasses
def self.type_name
_('Content')
end
track_actions :create_article, :after_create, :keep_params => [:name, :url, :lead, :first_image], :if => Proc.new { |a| a.is_trackable? && !a.image? }
# xss_terminate plugin can't sanitize array fields
# sanitize_tag_list is used with SanitizeHelper
before_save :sanitize_tag_list
before_create do |article|
if article.author
article.author_name = article.author.name
end
end
belongs_to :profile
validates_presence_of :profile_id, :name
validates_presence_of :slug, :path, :if => lambda { |article| !article.name.blank? }
validates_length_of :name, :maximum => 150
validates_uniqueness_of :slug, :scope => ['profile_id', 'parent_id'], :message => N_('The title (article name) is already being used by another article, please use another title.'), :if => lambda { |article| !article.slug.blank? }
belongs_to :author, :class_name => 'Person'
belongs_to :last_changed_by, :class_name => 'Person', :foreign_key => 'last_changed_by_id'
belongs_to :created_by, :class_name => 'Person', :foreign_key => 'created_by_id'
has_many :comments, -> { order 'created_at asc' }, class_name: 'Comment', as: 'source', dependent: :destroy
has_many :article_followers, :dependent => :destroy
has_many :person_followers, :class_name => 'Person', :through => :article_followers, :source => :person
has_many :person_followers_emails, -> { select :email }, class_name: 'User', through: :person_followers, source: :user
has_many :article_categorizations, -> { where 'articles_categories.virtual = ?', false }
has_many :categories, :through => :article_categorizations
has_many :article_categorizations_including_virtual, :class_name => 'ArticleCategorization'
has_many :categories_including_virtual, :through => :article_categorizations_including_virtual, :source => :category
extend ActsAsHavingSettings::ClassMethods
acts_as_having_settings field: :setting
settings_items :display_hits, :type => :boolean, :default => true
settings_items :author_name, :type => :string, :default => ""
settings_items :allow_members_to_edit, :type => :boolean, :default => false
settings_items :moderate_comments, :type => :boolean, :default => false
has_and_belongs_to_many :article_privacy_exceptions, :class_name => 'Person', :join_table => 'article_privacy_exceptions'
belongs_to :reference_article, :class_name => "Article", :foreign_key => 'reference_article_id'
belongs_to :license
has_many :translations, :class_name => 'Article', :foreign_key => :translation_of_id
belongs_to :translation_of, :class_name => 'Article', :foreign_key => :translation_of_id
before_destroy :rotate_translations
acts_as_voteable
before_create do |article|
article.published_at ||= Time.now
if article.reference_article && !article.parent
parent = article.reference_article.parent
if parent && parent.blog? && article.profile.has_blog?
article.parent = article.profile.blog
end
end
if article.created_by
article.author_name = article.created_by.name
end
end
after_destroy :destroy_activity
def destroy_activity
self.activity.destroy if self.activity
end
after_destroy :destroy_link_article
def destroy_link_article
Article.where(:reference_article_id => self.id, :type => LinkArticle).destroy_all
end
xss_terminate :only => [ :name ], :on => 'validation', :with => 'white_list'
scope :in_category, -> category {
includes('categories_including_virtual').where('categories.id' => category.id)
}
include TimeScopes
scope :by_range, -> range {
where 'articles.published_at BETWEEN :start_date AND :end_date', { start_date: range.first, end_date: range.last }
}
URL_FORMAT = /\A(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(([0-9]{1,5})?\/.*)?\Z/ix
validates_format_of :external_link, :with => URL_FORMAT, :if => lambda { |article| !article.external_link.blank? }
validate :known_language
validate :used_translation
validate :native_translation_must_have_language
validate :translation_must_have_language
validate :no_self_reference
validate :no_cyclical_reference, :if => 'parent_id.present?'
validate :parent_archived?
def no_self_reference
errors.add(:parent_id, _('self-reference is not allowed.')) if id && parent_id == id
end
def no_cyclical_reference
current_parent = Article.find(parent_id)
while current_parent
if current_parent == self
errors.add(:parent_id, _('cyclical reference is not allowed.'))
break
end
current_parent = current_parent.parent
end
end
def is_trackable?
self.published? && self.notifiable? && self.advertise? && self.profile.public_profile
end
def external_link=(link)
if !link.blank? && link !~ /^[a-z]+:\/\//i
link = 'http://' + link
end
self[:external_link] = link
end
def action_tracker_target
self.profile
end
def self.human_attribute_name_with_customization(attrib, options={})
case attrib.to_sym
when :name
_('Title')
else
_(self.human_attribute_name_without_customization(attrib))
end
end
class << self
alias_method_chain :human_attribute_name, :customization
end
def css_class_list
[self.class.name.to_css_class]
end
def css_class_name
[css_class_list].flatten.compact.join(' ')
end
def pending_categorizations
@pending_categorizations ||= []
end
def add_category(c, reload=false)
if new_record?
pending_categorizations << c
else
ArticleCategorization.add_category_to_article(c, self)
self.categories(reload)
end
end
def category_ids=(ids)
ArticleCategorization.remove_all_for(self)
ids.uniq.each do |item|
add_category(Category.find(item)) unless item.to_i.zero?
end
self.categories(true)
end
after_create :create_pending_categorizations
def create_pending_categorizations
pending_categorizations.each do |item|
ArticleCategorization.add_category_to_article(item, self)
end
self.categories(true)
pending_categorizations.clear
end
acts_as_taggable
N_('Tag list')
extend ActsAsFilesystem::ActsMethods
acts_as_filesystem
acts_as_versioned
self.non_versioned_columns << 'setting'
def version_condition_met?
(['name', 'body', 'abstract', 'filename', 'start_date', 'end_date', 'image_id', 'license_id'] & changed).length > 0
end
def comment_data
comments.map {|item| [item.title, item.body].join(' ') }.join(' ')
end
before_update do |article|
article.advertise = true
end
before_save do |article|
article.parent = article.parent_id ? Article.find(article.parent_id) : nil
parent_path = article.parent ? article.parent.path : nil
article.path = [parent_path, article.slug].compact.join('/')
end
# retrieves all articles belonging to the given +profile+ that are not
# sub-articles of any other article.
scope :top_level_for, -> profile {
where 'parent_id is null and profile_id = ?', profile.id
}
scope :is_public, -> {
joins(:profile).
where("articles.advertise = ? AND articles.published = ? AND profiles.visible = ? AND profiles.public_profile = ?", true, true, true, true)
}
scope :more_recent, -> {
order('articles.published_at desc, articles.id desc')
.where("articles.advertise = ? AND articles.published = ? AND profiles.visible = ? AND profiles.public_profile = ? AND
((articles.type != ?) OR articles.type is NULL)",
true, true, true, true, 'RssFeed')
}
# retrives the most commented articles, sorted by the comment count (largest
# first)
def self.most_commented(limit)
order('comments_count DESC').paginate(page: 1, per_page: limit)
end
scope :more_popular, -> { order 'hits DESC' }
scope :relevant_as_recent, -> {
where "(articles.type != 'UploadedFile' and articles.type != 'RssFeed' and articles.type != 'Blog') OR articles.type is NULL"
}
def self.recent(limit = nil, extra_conditions = {}, pagination = true)
result = where(extra_conditions).
is_public.
relevant_as_recent.
limit(limit).
order(['articles.published_at desc', 'articles.id desc'])
pagination ? result.paginate({:page => 1, :per_page => limit}) : result
end
# produces the HTML code that is to be displayed as this article's contents.
#
# The implementation in this class just provides the +body+ attribute as the
# HTML. Other article types can override this method to provide customized
# views of themselves.
# (To override short format representation, override the lead method)
def to_html(options = {})
if options[:format] == 'short'
article = self
proc do
display_short_format(article)
end
else
body || ''
end
end
# returns the data of the article. Must be overriden in each subclass to
# provide the correct content for the article.
def data
body
end
# provides the icon name to be used for this article. In this class this
# method just returns 'text-html', but subclasses may (and should) override
# to return their specific icons.
#
# FIXME use mime_type and generate this name dinamically
def self.icon_name(article = nil)
'text-html'
end
# TODO Migrate the class method icon_name to instance methods.
def icon_name
self.class.icon_name(self)
end
def mime_type
'text/html'
end
def mime_type_description
_('HTML Text document')
end
def self.description
raise NotImplementedError, "#{self} does not implement #description"
end
def self.short_description
raise NotImplementedError, "#{self} does not implement #short_description"
end
def title
name
end
include ActionView::Helpers::TextHelper
def short_title
truncate self.title, :length => 15, :omission => '...'
end
def belongs_to_blog?
self.parent and self.parent.blog?
end
def belongs_to_forum?
self.parent and self.parent.forum?
end
def person_followers_email_list
person_followers_emails.map{|p|p.email}
end
def info_from_last_update
last_comment = comments.last
if last_comment
{:date => last_comment.created_at, :author_name => last_comment.author_name, :author_url => last_comment.author_url}
else
{:date => updated_at, :author_name => author_name, :author_url => author_url}
end
end
def full_path
profile.hostname.blank? ? "/#{profile.identifier}/#{path}" : "/#{path}"
end
def url
@url ||= self.profile.url.merge(:page => path.split('/'))
end
def view_url
@view_url ||= is_a?(UploadedFile) ? url.merge(:view => true) : url
end
def comment_url_structure(comment, action = :edit)
if comment.new_record?
profile.url.merge(:page => path.split("/"), :controller => :comment, :action => :create)
else
profile.url.merge(:page => path.split("/"), :controller => :comment, :action => action || :edit, :id => comment.id)
end
end
def allow_children?
true
end
def has_posts?
false
end
def download? view = nil
false
end
def is_followed_by?(user)
self.person_followers.include? user
end
def download_disposition
'inline'
end
def download_headers
{ :filename => filename, :type => mime_type, :disposition => download_disposition}
end
def alternate_languages
self.translations.map(&:language)
end
scope :native_translations, -> { where :translation_of_id => nil }
def translatable?
false
end
def native_translation
self.translation_of.nil? ? self : self.translation_of
end
def possible_translations
possibilities = environment.locales.keys - self.native_translation.translations(:select => :language).map(&:language) - [self.native_translation.language]
possibilities << self.language unless self.language_changed?
possibilities
end
def known_language
unless self.language.blank?
errors.add(:language, N_('Language not supported by the environment.')) unless environment.locales.key?(self.language)
end
end
def used_translation
unless self.language.blank? or self.translation_of.nil?
errors.add(:language, N_('Language is already used')) unless self.possible_translations.include?(self.language)
end
end
def translation_must_have_language
unless self.translation_of.nil?
errors.add(:language, N_('Language must be choosen')) if self.language.blank?
end
end
def native_translation_must_have_language
unless self.translation_of.nil?
errors.add(:base, N_('A language must be choosen for the native article')) if self.translation_of.language.blank?
end
end
def rotate_translations
unless self.translations.empty?
rotate = self.translations.to_a
root = rotate.shift
root.update_attribute(:translation_of_id, nil)
root.translations = rotate
end
end
def get_translation_to(locale)
if self.language.nil? || self.language.blank? || self.language == locale
self
elsif self.native_translation.language == locale
self.native_translation
else
self.native_translation.translations.where(:language => locale).first
end
end
def published?
if self.published
if self.parent && !self.parent.published?
return false
end
true
else
false
end
end
def archived?
(self.parent && self.parent.archived) || self.archived
end
def self.folder_types
['Folder', 'Blog', 'Forum', 'Gallery']
end
def self.text_article_types
['TextArticle', 'TextileArticle', 'TinyMceArticle']
end
scope :published, -> { where 'articles.published = ?', true }
scope :folders, -> profile { where 'articles.type IN (?)', profile.folder_types }
scope :no_folders, -> profile { where 'articles.type NOT IN (?)', profile.folder_types }
scope :galleries, -> { where "articles.type IN ('Gallery')" }
scope :images, -> { where :is_image => true }
scope :no_images, -> { where :is_image => false }
scope :text_articles, -> { where 'articles.type IN (?)', text_article_types }
scope :files, -> { where :type => 'UploadedFile' }
scope :with_types, -> types { where 'articles.type IN (?)', types }
scope :more_popular, -> { order 'hits DESC' }
scope :more_comments, -> { order "comments_count DESC" }
scope :more_recent, -> { order "created_at DESC" }
scope :display_filter, lambda {|user, profile|
return published if (user.nil? && profile && profile.public?)
return [] if user.nil? || (profile && !profile.public? && !profile.in_social_circle?(user))
where(
[
"published = ? OR last_changed_by_id = ? OR profile_id = ? OR ?
OR (show_to_followers = ? AND ? AND profile_id IN (?))", true, user.id, user.id,
profile.nil? ? false : user.has_permission?(:view_private_content, profile),
true, (profile.nil? ? true : profile.in_social_circle?(user)), ( profile.nil? ? (user.friends.select('profiles.id')) : [profile.id])
]
)
}
def display_unpublished_article_to?(user)
user == author || allow_view_private_content?(user) || user == profile ||
user.is_admin?(profile.environment) || user.is_admin?(profile) ||
article_privacy_exceptions.include?(user) ||
(self.show_to_followers && user.follows?(profile))
end
def display_to?(user = nil)
if published?
(profile.secret? || !profile.visible?) ? profile.display_info_to?(user) : true
else
if !user
false
else
display_unpublished_article_to?(user)
end
end
end
def allow_post_content?(user = nil)
return true if allow_edit_topic?(user)
user && (profile.allow_post_content?(user) || allow_publish_content?(user) && (user == author))
end
def allow_publish_content?(user = nil)
user && user.has_permission?('publish_content', profile)
end
def allow_view_private_content?(user = nil)
user && user.has_permission?('view_private_content', profile)
end
alias :allow_delete? :allow_post_content?
def allow_spread?(user = nil)
user && public?
end
def allow_create?(user)
allow_post_content?(user) || allow_publish_content?(user)
end
def allow_edit?(user)
return true if allow_edit_topic?(user)
allow_post_content?(user) || user && allow_members_to_edit && user.is_member_of?(profile)
end
def allow_edit_topic?(user)
self.belongs_to_forum? && (user == author) && user.present? && user.is_member_of?(profile)
end
def moderate_comments?
moderate_comments == true
end
def comments_updated
solr_save
end
def accept_category?(cat)
true
end
def public?
profile.visible? && profile.public? && published?
end
def copy_without_save(options = {})
attrs = attributes.reject! { |key, value| ATTRIBUTES_NOT_COPIED.include?(key.to_sym) }
attrs.merge!(options)
object = self.class.new
attrs.each do |key, value|
object.send(key.to_s+'=', value)
end
object
end
def copy(options = {})
object = copy_without_save(options)
object.save
object
end
def copy!(options = {})
object = copy_without_save(options)
object.save!
object
end
ATTRIBUTES_NOT_COPIED = [
:id,
:profile_id,
:parent_id,
:path,
:slug,
:updated_at,
:created_at,
:version,
:lock_version,
:type,
:children_count,
:comments_count,
:hits,
]
def self.find_by_old_path(old_path)
self.includes(:versions).where('article_versions.path = ?', old_path).order('article_versions.id DESC').first
end
def hit
if !archived?
self.class.connection.execute('update articles set hits = hits + 1 where id = %d' % self.id.to_i)
self.hits += 1
end
end
def self.hit(articles)
ids = []
articles.each do |article|
if !article.archived?
ids << article.id
article.hits += 1
end
end
Article.where(:id => ids).update_all('hits = hits + 1') if !ids.empty?
end
def can_display_hits?
true
end
def display_hits?
can_display_hits? && display_hits
end
def display_media_panel?
can_display_media_panel? && environment.enabled?('media_panel')
end
def can_display_media_panel?
false
end
settings_items :display_preview, :type => :boolean, :default => false
def display_preview?
false
end
def image?
false
end
def event?
false
end
def gallery?
false
end
def tiny_mce?
false
end
def folder?
false
end
def blog?
false
end
def forum?
false
end
def uploaded_file?
false
end
settings_items :display_versions, :type => :boolean, :default => false
def can_display_versions?
false
end
def display_versions?
can_display_versions? && display_versions
end
def get_version(version_number = nil)
if version_number then self.versions.order('version').offset(version_number - 1).first else self.versions.earliest end
end
def author_by_version(version_number = nil)
if version_number then profile.environment.people.where(id: get_version(version_number).author_id).first else author end
end
def author_name(version_number = nil)
person = author_by_version(version_number)
if version_number
person ? person.name : _('Unknown')
else
person ? person.name : (setting[:author_name] || _('Unknown'))
end
end
def author_url(version_number = nil)
person = author_by_version(version_number)
person ? person.url : nil
end
def author_id(version_number = nil)
person = author_by_version(version_number)
person ? person.id : nil
end
#FIXME make this test
def author_custom_image(size = :icon)
author ? author.profile_custom_image(size) : nil
end
def version_license(version_number = nil)
return license if version_number.nil?
profile.environment.licenses.find_by(id: get_version(version_number).license_id)
end
alias :active_record_cache_key :cache_key
def cache_key(params = {}, the_profile = nil, language = 'en')
active_record_cache_key+'-'+language +
(allow_post_content?(the_profile) ? "-owner" : '') +
(params[:npage] ? "-npage-#{params[:npage]}" : '') +
(params[:year] ? "-year-#{params[:year]}" : '') +
(params[:month] ? "-month-#{params[:month]}" : '') +
(params[:version] ? "-version-#{params[:version]}" : '')
end
def first_paragraph
paragraphs = Nokogiri::HTML.fragment(to_html).css('p')
paragraphs.empty? ? '' : paragraphs.first.to_html
end
def lead(length = nil)
content = abstract.blank? ? first_paragraph.html_safe : abstract.html_safe
length.present? ? content.truncate(length) : content
end
def short_lead
truncate sanitize_html(self.lead), :length => 170, :omission => '...'
end
def notifiable?
false
end
def accept_uploads?
self.parent && self.parent.accept_uploads?
end
def body_images_paths
paths = Nokogiri::HTML.fragment(self.body.to_s).css('img[src]').collect do |i|
src = i['src']
src = URI.escape src if self.new_record? # xss_terminate runs on save
(self.profile && self.profile.environment) ? URI.join(self.profile.environment.top_url, src).to_s : src
end
paths.unshift(URI.join(self.profile.environment.top_url, self.image.public_filename).to_s) if self.image.present?
paths
end
def more_comments_label
amount = self.comments_count
{
0 => _('no comments'),
1 => _('one comment')
}[amount] || _("%s comments") % amount
end
def more_popular_label
amount = self.hits
{
0 => _('no views'),
1 => _('one view')
}[amount] || _("%s views") % amount
end
def more_recent_label
_('Created at: ')
end
def activity
ActionTracker::Record.where(target_type: 'Article', target_id: self.id).first
end
def create_activity
if is_trackable? && !image?
save_action_for_verb 'create_article', [:name, :url, :lead, :first_image], Proc.new{}, :author
end
end
def first_image
img = ( image.present? && { 'src' => File.join([Noosfero.root, image.public_filename].join) } ) ||
Nokogiri::HTML.fragment(self.lead.to_s).css('img[src]').first ||
Nokogiri::HTML.fragment(self.body.to_s).search('img').first
img.nil? ? '' : img['src']
end
delegate :lat, :lng, :region, :region_id, :environment, :environment_id, :to => :profile, :allow_nil => true
def has_macro?
true
end
def to_liquid
HashWithIndifferentAccess.new :name => name, :abstract => abstract, :body => body, :id => id, :parent_id => parent_id, :author => author
end
def self.can_display_blocks?
true
end
private
def sanitize_tag_list
sanitizer = HTML::FullSanitizer.new
self.tag_list.map!{|i| strip_tag_name sanitizer.sanitize(i) }
end
def strip_tag_name(tag_name)
tag_name.gsub(/[<>]/, '')
end
def parent_archived?
if self.parent_id_changed? && self.parent && self.parent.archived?
errors.add(:parent_folder, N_('is archived!!'))
end
end
end