121 lines
3.3 KiB
Ruby
121 lines
3.3 KiB
Ruby
require 'date'
|
|
require 'page_lock'
|
|
require 'revision'
|
|
require 'wiki_words'
|
|
require 'chunks/wiki'
|
|
|
|
class Page
|
|
include PageLock
|
|
|
|
attr_reader :name, :web
|
|
attr_accessor :revisions
|
|
|
|
def initialize(web, name)
|
|
raise 'nil web' if web.nil?
|
|
raise 'nil name' if name.nil?
|
|
@web, @name, @revisions = web, name, []
|
|
end
|
|
|
|
def revise(content, created_at, author)
|
|
|
|
if not @revisions.empty? and content == @revisions.last.content
|
|
raise Instiki::ValidationError.new(
|
|
"You have tried to save page '#{name}' without changing its content")
|
|
end
|
|
|
|
# Try to render content to make sure that markup engine can take it,
|
|
# before addin a revision to the page
|
|
Revision.new(self, @revisions.length, content, created_at, author).force_rendering
|
|
|
|
# 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.empty? && continous_revision?(created_at, author)
|
|
@revisions.last.created_at = created_at
|
|
@revisions.last.content = content
|
|
@revisions.last.clear_display_cache
|
|
else
|
|
@revisions << Revision.new(self, @revisions.length, content, created_at, author)
|
|
end
|
|
|
|
self.revisions.last.force_rendering
|
|
# at this point the page may not be inserted in the web yet, and therefore
|
|
# references to the page itself are rendered as "unresolved". Clearing the cache allows
|
|
# the page to re-render itself once again, hopefully _after_ it is inserted in the web
|
|
self.revisions.last.clear_display_cache
|
|
|
|
@web.refresh_pages_with_references(@name) if @revisions.length == 1
|
|
|
|
self
|
|
|
|
end
|
|
|
|
def rollback(revision_number, created_at, author_ip = nil)
|
|
roll_back_revision = @revisions[revision_number].dup
|
|
revise(roll_back_revision.content, created_at, Author.new(roll_back_revision.author, author_ip))
|
|
end
|
|
|
|
def revisions?
|
|
revisions.length > 1
|
|
end
|
|
|
|
def revised_on
|
|
created_on
|
|
end
|
|
|
|
def in_category?(cat)
|
|
cat.nil? || cat.empty? || categories.include?(cat)
|
|
end
|
|
|
|
def categories
|
|
display_content.find_chunks(Category).map { |cat| cat.list }.flatten
|
|
end
|
|
|
|
def authors
|
|
revisions.collect { |rev| rev.author }
|
|
end
|
|
|
|
def references
|
|
@web.select.pages_that_reference(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 ? name : WikiWords.separate(name)
|
|
end
|
|
|
|
# used to build chunk ids.
|
|
def id
|
|
@id ||= name.unpack('H*').first
|
|
end
|
|
|
|
def link(options = {})
|
|
@web.make_link(name, nil, options)
|
|
end
|
|
|
|
def author_link(options = {})
|
|
@web.make_link(author, nil, options)
|
|
end
|
|
|
|
private
|
|
|
|
def continous_revision?(created_at, author)
|
|
@revisions.last.author == author && @revisions.last.created_at + 30.minutes > created_at
|
|
end
|
|
|
|
# Forward method calls to the current revision, so the page responds to all revision calls
|
|
def method_missing(method_symbol)
|
|
revisions.last.send(method_symbol)
|
|
end
|
|
|
|
end
|