122 lines
3.6 KiB
Ruby
122 lines
3.6 KiB
Ruby
class Page < ActiveRecord::Base
|
|
belongs_to :web
|
|
has_many :revisions, :order => 'id'
|
|
has_many :wiki_references, :order => 'referenced_name'
|
|
has_one :current_revision, :class_name => 'Revision', :order => 'id DESC'
|
|
|
|
def revise(content, time, author, renderer)
|
|
revisions_size = new_record? ? 0 : revisions.size
|
|
if (revisions_size > 0) and content == current_revision.content
|
|
raise Instiki::ValidationError.new(
|
|
"You have tried to save page '#{name}' without changing its content")
|
|
end
|
|
|
|
author = Author.new(author.to_s) unless author.is_a?(Author)
|
|
|
|
# Try to render content to make sure that markup engine can take it,
|
|
renderer.revision = Revision.new(
|
|
:page => self, :content => content, :author => author, :revised_at => time)
|
|
renderer.display_content(update_references = true)
|
|
|
|
# A user may change a page, look at it and make some more changes - several times.
|
|
# Not to record every such iteration as a new revision, if the previous revision was done
|
|
# by the same author, not more than 30 minutes ago, then update the last revision instead of
|
|
# creating a new one
|
|
if (revisions_size > 0) && continous_revision?(time, author)
|
|
current_revision.update_attributes(:content => content, :revised_at => time)
|
|
else
|
|
revisions.build(:content => content, :author => author, :revised_at => time)
|
|
end
|
|
save
|
|
self
|
|
end
|
|
|
|
def rollback(revision_number, time, author_ip, renderer)
|
|
roll_back_revision = self.revisions[revision_number]
|
|
if roll_back_revision.nil?
|
|
raise Instiki::ValidationError.new("Revision #{revision_number} not found")
|
|
end
|
|
author = Author.new(roll_back_revision.author.name, author_ip)
|
|
revise(roll_back_revision.content, time, author, renderer)
|
|
end
|
|
|
|
def revisions?
|
|
revisions.size > 1
|
|
end
|
|
|
|
def previous_revision(revision)
|
|
revision_index = revisions.each_with_index do |rev, index|
|
|
if rev.id == revision.id
|
|
break index
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
if revision_index.nil? or revision_index == 0
|
|
nil
|
|
else
|
|
revisions[revision_index - 1]
|
|
end
|
|
end
|
|
|
|
def references
|
|
web.select.pages_that_reference(name)
|
|
end
|
|
|
|
def wiki_words
|
|
wiki_references.select { |ref| ref.wiki_word? }.map { |ref| ref.referenced_name }
|
|
end
|
|
|
|
def linked_from
|
|
web.select.pages_that_link_to(name)
|
|
end
|
|
|
|
def included_from
|
|
web.select.pages_that_include(name)
|
|
end
|
|
|
|
# Returns the original wiki-word name as separate words, so "MyPage" becomes "My Page".
|
|
def plain_name
|
|
web.brackets_only? ? CGI.escapeHTML(name) : CGI.escapeHTML(WikiWords.separate(name))
|
|
end
|
|
|
|
LOCKING_PERIOD = 30.minutes
|
|
|
|
def lock(time, locked_by)
|
|
update_attributes(:locked_at => time, :locked_by => locked_by)
|
|
end
|
|
|
|
def lock_duration(time)
|
|
((time - locked_at) / 60).to_i unless locked_at.nil?
|
|
end
|
|
|
|
def unlock
|
|
update_attribute(:locked_at, nil)
|
|
end
|
|
|
|
def locked?(comparison_time)
|
|
locked_at + LOCKING_PERIOD > comparison_time unless locked_at.nil?
|
|
end
|
|
|
|
def to_param
|
|
name
|
|
end
|
|
|
|
private
|
|
|
|
def continous_revision?(time, author)
|
|
(current_revision.author == author) && (revised_at + 30.minutes > time)
|
|
end
|
|
|
|
# Forward method calls to the current revision, so the page responds to all revision calls
|
|
def method_missing(method_id, *args, &block)
|
|
method_name = method_id.to_s
|
|
# Perform a hand-off to AR::Base#method_missing
|
|
if @attributes.include?(method_name) or md = /(=|\?|_before_type_cast)$/.match(method_name)
|
|
super(method_id, *args, &block)
|
|
else
|
|
current_revision.send(method_id)
|
|
end
|
|
end
|
|
end
|