Jorge Manrubia
46 lines
904 B
Ruby
46 lines
904 B
Ruby
# A composite of commands
|
|
class Command::Composite < Command
|
|
store_accessor :data, :title
|
|
|
|
has_many :commands, inverse_of: :parent, dependent: :destroy
|
|
|
|
def execute
|
|
commands.collect { it.execute }
|
|
end
|
|
|
|
def undo
|
|
undoable_commands.collect { it.undo }
|
|
end
|
|
|
|
def undoable?
|
|
undoable_commands.any?
|
|
end
|
|
|
|
def confirmation_prompt
|
|
confirmations = commands_excluding_redirections.collect(&:confirmation_prompt).collect { "- #{it}." }.join("\n")
|
|
|
|
<<~MD
|
|
You are about to:
|
|
|
|
#{confirmations}
|
|
MD
|
|
end
|
|
|
|
def needs_confirmation?
|
|
commands.any?(&:needs_confirmation?)
|
|
end
|
|
|
|
def error_messages
|
|
commands.flat_map(&:error_messages).uniq
|
|
end
|
|
|
|
private
|
|
def commands_excluding_redirections
|
|
commands.reject { it.is_a?(Command::VisitUrl) }
|
|
end
|
|
|
|
def undoable_commands
|
|
@undoable_commands ||= commands.filter(&:undoable?).reverse
|
|
end
|
|
end
|