discourse/lib/new_post_manager.rb

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require_dependency 'post_creator'
require_dependency 'new_post_result'
require_dependency 'post_enqueuer'
# Determines what actions should be taken with new posts.
#
# The default action is to create the post, but this can be extended
# with `NewPostManager.add_handler` to take other approaches depending
# on the user or input.
class NewPostManager
attr_reader :user, :args
def self.handlers
@handlers ||= Set.new
end
def self.add_handler(&block)
handlers << block
end
def initialize(user, args)
@user = user
@args = args
end
def perform
# Perform handlers until one returns a result
handled = NewPostManager.handlers.any? do |handler|
result = handler.call(self)
return result if result
false
end
perform_create_post unless handled
end
# Enqueue this post in a queue
def enqueue(queue)
result = NewPostResult.new(:enqueued)
enqueuer = PostEnqueuer.new(@user, queue)
post = enqueuer.enqueue(@args)
QueuedPost.publish_new! if post && post.errors.empty?
result.check_errors_from(enqueuer)
result
end
def perform_create_post
result = NewPostResult.new(:create_post)
creator = PostCreator.new(@user, @args)
post = creator.create
result.check_errors_from(creator)
if result.success?
result.post = post
else
@user.flag_linked_posts_as_spam if creator.spam?
end
result
end
end