require 'pg'
require 'common/davical_plugin'
-require 'rm/rm_plugin'
+require 'mv/mv_plugin'
+# Handle moving (renaming) DAViCal users in its database. DAViCal has
+# no concept of domains.
+#
class DavicalMv
- #
- # DAViCal only supports Postgres, so even if we ever are
- # database-agnostic, this plugin can't be.
- #
include DavicalPlugin
include MvPlugin
+ # Move the user *src* to *dst* within the DAViCal database. This
+ # should "rename" him in _every_ table where he is referenced.
+ # DAViCal uses foreign keys properly, so we let the ON UPDATE
+ # CASCADE trigger handle most of the work.
+ #
+ # This can fail is *src* does not exist, or if *dst* already exists
+ # before the move. It should also be an error if the destination
+ # domain doesn't exist. But DAViCal doesn't know about domains, so
+ # we let that slide.
+ #
+ # @param src [User] the source user to be moved.
+ #
+ # @param dst [User] the destination user being moved to.
+ #
def mv_user(src, dst)
- # Switch the given usernames. DAViCal uses foreign keys properly
- # and only supports postgres, so we let the ON UPDATE CASCADE
- # trigger handle most of the work.
-
- # It's obviously an error if the source user does not exist. It
- # would also be an error if the destination domain didn't exist;
- # however, DAViCal doesn't know about domains, so we let that slide.
raise NonexistentUserError.new(src.to_s()) if not user_exists(src)
-
- # And it's an error if the destination user exists already.
raise UserAlreadyExistsError.new(dst.to_s()) if user_exists(dst)
- sql_queries = ['UPDATE usr SET username = $1 WHERE username = $2']
+ sql_query = 'UPDATE usr SET username = $1 WHERE username = $2;'
- connection = PGconn.connect(@db_host, @db_port, @db_opts, @db_tty,
- @db_name, @db_user, @db_pass)
-
- sql_queries.each do |sql_query|
- connection.query(sql_query, [dst.to_s(), src.to_s()])
+ connection = PG::Connection.new(@db_hash)
+ begin
+ connection.sync_exec_params(sql_query, [dst.to_s(), src.to_s()])
+ ensure
+ # Make sure the connection gets closed even if the query explodes.
+ connection.close()
end
-
- connection.close()
end
end