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