discourse/lib/post_revisor.rb

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require 'edit_rate_limiter'
class PostRevisor
def initialize(post)
@post = post
end
def revise!(user, new_raw, opts = {})
@user, @new_raw, @opts = user, new_raw, opts
return false if not should_revise?
revise_post
post_process_post
true
end
private
def should_revise?
@post.raw != @new_raw
end
def revise_post
if should_create_new_version?
revise_and_create_new_version
else
revise_without_creating_a_new_version
end
end
def get_revised_at
@opts[:revised_at] || Time.now
end
def should_create_new_version?
(@post.last_editor_id != @user.id) or
((get_revised_at - @post.last_version_at) > SiteSetting.ninja_edit_window.to_i) or
@opts[:force_new_version] == true
end
def revise_and_create_new_version
Post.transaction do
@post.cached_version = @post.version + 1
@post.last_version_at = get_revised_at
update_post
EditRateLimiter.new(@post.user).performed! unless @opts[:bypass_rate_limiter] == true
bump_topic unless @opts[:bypass_bump]
end
end
def revise_without_creating_a_new_version
@post.skip_version do
update_post
end
end
def bump_topic
unless Post.where('post_number > ? and topic_id = ?', @post.post_number, @post.topic_id).exists?
@post.topic.update_column(:bumped_at, Time.now)
end
end
def update_post
@post.reset_cooked
@post.raw = @new_raw
@post.updated_by = @user
@post.last_editor_id = @user.id
if @post.hidden && @post.hidden_reason_id == Post::HiddenReason::FLAG_THRESHOLD_REACHED
@post.hidden = false
@post.hidden_reason_id = nil
@post.topic.update_attributes(visible: true)
PostAction.clear_flags!(@post, -1)
end
@post.save
end
def post_process_post
@post.invalidate_oneboxes = true
@post.trigger_post_process
end
end