mirror of
https://github.com/discourse/discourse.git
synced 2024-11-28 06:23:39 +08:00
99 lines
2.9 KiB
Ruby
99 lines
2.9 KiB
Ruby
# Responsible for creating posts and topics
|
|
#
|
|
require_dependency 'rate_limiter'
|
|
|
|
class PostCreator
|
|
|
|
# Errors when creating the post
|
|
attr_reader :errors
|
|
|
|
# Acceptable options:
|
|
#
|
|
# raw - raw text of post
|
|
# image_sizes - We can pass a list of the sizes of images in the post as a shortcut.
|
|
#
|
|
# When replying to a topic:
|
|
# topic_id - topic we're replying to
|
|
# reply_to_post_number - post number we're replying to
|
|
#
|
|
# When creating a topic:
|
|
# title - New topic title
|
|
# archetype - Topic archetype
|
|
# category - Category to assign to topic
|
|
# target_usernames - comma delimited list of usernames for membership (private message)
|
|
# meta_data - Topic meta data hash
|
|
def initialize(user, opts)
|
|
@user = user
|
|
@opts = opts
|
|
raise Discourse::InvalidParameters.new(:raw) if @opts[:raw].blank?
|
|
end
|
|
|
|
def guardian
|
|
@guardian ||= Guardian.new(@user)
|
|
end
|
|
|
|
def create
|
|
topic = nil
|
|
post = nil
|
|
|
|
Post.transaction do
|
|
if @opts[:topic_id].blank?
|
|
topic_params = {title: @opts[:title], user_id: @user.id, last_post_user_id: @user.id}
|
|
topic_params[:archetype] = @opts[:archetype] if @opts[:archetype].present?
|
|
|
|
guardian.ensure_can_create!(Topic)
|
|
|
|
category = Category.where(name: @opts[:category]).first
|
|
topic_params[:category_id] = category.id if category.present?
|
|
topic_params[:meta_data] = @opts[:meta_data] if @opts[:meta_data].present?
|
|
|
|
topic = Topic.new(topic_params)
|
|
|
|
if @opts[:archetype] == Archetype.private_message
|
|
|
|
usernames = @opts[:target_usernames].split(',')
|
|
User.where(:username => usernames).each do |u|
|
|
|
|
unless guardian.can_send_private_message?(u)
|
|
topic.errors.add(:archetype, :cant_send_pm)
|
|
@errors = topic.errors
|
|
raise ActiveRecord::Rollback.new
|
|
end
|
|
|
|
topic.topic_allowed_users.build(user_id: u.id)
|
|
end
|
|
topic.topic_allowed_users.build(user_id: @user.id)
|
|
end
|
|
|
|
unless topic.save
|
|
@errors = topic.errors
|
|
raise ActiveRecord::Rollback.new
|
|
end
|
|
else
|
|
topic = Topic.where(id: @opts[:topic_id]).first
|
|
guardian.ensure_can_create!(Post, topic)
|
|
end
|
|
|
|
post = topic.posts.new(raw: @opts[:raw],
|
|
user: @user,
|
|
reply_to_post_number: @opts[:reply_to_post_number])
|
|
post.image_sizes = @opts[:image_sizes] if @opts[:image_sizes].present?
|
|
unless post.save
|
|
@errors = post.errors
|
|
raise ActiveRecord::Rollback.new
|
|
end
|
|
|
|
# Extract links
|
|
TopicLink.extract_from(post)
|
|
end
|
|
|
|
post
|
|
end
|
|
|
|
# Shortcut
|
|
def self.create(user, opts)
|
|
PostCreator.new(user, opts).create
|
|
end
|
|
|
|
end
|