instiki/app/models/wiki_reference.rb
Jacques Distler 82e7aa52c7 Referring Pages for File List
For the file_list  action, include the pages which link to the given file(s).
This required rejiggering so that that information is actually retained in the database.
Unfortunately, you'll actually need to revise the page(s) in question, because that's the
only time this information is updated in the database.
2009-01-10 00:18:25 -06:00

101 lines
3.2 KiB
Ruby

class WikiReference < ActiveRecord::Base
LINKED_PAGE = 'L'
WANTED_PAGE = 'W'
INCLUDED_PAGE = 'I'
CATEGORY = 'C'
AUTHOR = 'A'
FILE = 'F'
WANTED_FILE = 'E'
belongs_to :page
validates_inclusion_of :link_type, :in => [LINKED_PAGE, WANTED_PAGE, INCLUDED_PAGE, CATEGORY, AUTHOR, FILE, WANTED_FILE]
def self.link_type(web, page_name)
web.has_page?(page_name) ? LINKED_PAGE : WANTED_PAGE
end
def self.pages_that_reference(web, page_name)
query = 'SELECT name FROM pages JOIN wiki_references ' +
'ON pages.id = wiki_references.page_id ' +
'WHERE wiki_references.referenced_name = ? ' +
"AND wiki_references.link_type in ('#{LINKED_PAGE}', '#{WANTED_PAGE}', '#{INCLUDED_PAGE}') " +
"AND pages.web_id = '#{web.id}'"
names = connection.select_all(sanitize_sql([query, page_name])).map { |row| row['name'] }
end
def self.pages_that_link_to(web, page_name)
query = 'SELECT name FROM pages JOIN wiki_references ' +
'ON pages.id = wiki_references.page_id ' +
'WHERE wiki_references.referenced_name = ? ' +
"AND wiki_references.link_type in ('#{LINKED_PAGE}','#{WANTED_PAGE}') " +
"AND pages.web_id = '#{web.id}'"
names = connection.select_all(sanitize_sql([query, page_name])).map { |row| row['name'] }
end
def self.pages_that_link_to_file(web, file_name)
query = 'SELECT name FROM pages JOIN wiki_references ' +
'ON pages.id = wiki_references.page_id ' +
'WHERE wiki_references.referenced_name = ? ' +
"AND wiki_references.link_type in ('#{FILE}') " +
"AND pages.web_id = '#{web.id}'"
names = connection.select_all(sanitize_sql([query, file_name])).map { |row| row['name'] }
end
def self.pages_that_include(web, page_name)
query = 'SELECT name FROM pages JOIN wiki_references ' +
'ON pages.id = wiki_references.page_id ' +
'WHERE wiki_references.referenced_name = ? ' +
"AND wiki_references.link_type = '#{INCLUDED_PAGE}' " +
"AND pages.web_id = '#{web.id}'"
names = connection.select_all(sanitize_sql([query, page_name])).map { |row| row['name'] }
end
def self.pages_in_category(web, category)
query =
"SELECT name FROM pages JOIN wiki_references " +
"ON pages.id = wiki_references.page_id " +
"WHERE wiki_references.referenced_name = ? " +
"AND wiki_references.link_type = '#{CATEGORY}' " +
"AND pages.web_id = '#{web.id}'"
names = connection.select_all(sanitize_sql([query, category])).map { |row| row['name'] }
end
def self.list_categories(web)
query = "SELECT DISTINCT wiki_references.referenced_name " +
"FROM wiki_references LEFT OUTER JOIN pages " +
"ON wiki_references.page_id = pages.id " +
"WHERE wiki_references.link_type = '#{CATEGORY}' " +
"AND pages.web_id = '#{web.id}'"
connection.select_all(query).map { |row| row['referenced_name'] }
end
def wiki_word?
linked_page? or wanted_page?
end
def wiki_link?
linked_page? or wanted_page? or file? or wanted_file?
end
def linked_page?
link_type == LINKED_PAGE
end
def wanted_page?
link_type == WANTED_PAGE
end
def included_page?
link_type == INCLUDED_PAGE
end
def file?
link_type == FILE
end
def wanted_file?
link_type == WANTED_FILE
end
end