You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
3.4 KiB
88 lines
3.4 KiB
6 years ago
|
class Message < ApplicationRecord
|
||
|
|
attr_accessor :total_replies_count
|
||
|
|
|
||
|
|
belongs_to :board, counter_cache: true
|
||
|
|
belongs_to :author, class_name: "User", foreign_key: 'author_id'
|
||
|
|
belongs_to :parent, class_name: "Message", foreign_key: "parent_id", counter_cache: :replies_count, optional: true
|
||
|
|
has_one :message_detail, dependent: :destroy
|
||
|
|
accepts_nested_attributes_for :message_detail, update_only: true
|
||
|
|
|
||
|
|
has_many :children, -> { order(updated_on: :desc ) }, class_name: "Message", foreign_key: "parent_id", dependent: :destroy
|
||
|
|
has_many :praise_treads, as: :praise_tread_object, dependent: :destroy
|
||
|
|
has_many :tidings, as: :container, dependent: :destroy
|
||
|
|
has_many :attachments, as: :container, dependent: :destroy
|
||
|
|
has_many :course_acts, :class_name => 'CourseActivity',:as =>:course_act ,:dependent => :destroy # 课程动态
|
||
|
|
|
||
|
|
scope :root_nodes, -> { where("parent_id IS NULL") } #判断该信息是帖子还是回复。null为发布的帖子
|
||
|
|
scope :reply_nodes, -> { where("parent_id IS NOT NULL") }
|
||
|
|
scope :visible, -> { where(is_hidden: false)}
|
||
|
|
scope :by_user, ->(user) { visible if user.nil? || !user.admin? }
|
||
|
|
scope :preload_messages, -> { includes(:author, :message_detail) }
|
||
|
|
scope :short, -> { select(:id, :subject, :created_on, :replies_count, :visits, :sticky, :praises_count) }
|
||
|
|
scope :ordered, -> (opts={}) { reorder("created_on #{opts[:sort] == 1 ? 'asc': 'desc'}") }
|
||
|
|
scope :by_ids, lambda { |ids| where(id: ids) unless ids.blank? }
|
||
|
|
scope :find_by_boards, ->(ids) {where(board_id: ids)}
|
||
|
|
scope :by_keywords, lambda { |keywords|
|
||
|
|
where("subject LIKE ?", "%#{keywords.split(" ").join('|')}%") unless keywords.blank?
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#转发表
|
||
|
|
# has_many :forwards, as: :from, dependent: :destroy
|
||
|
|
|
||
|
|
validates :subject, length: { maximum: 255 }
|
||
|
|
|
||
|
|
def update_content(content)
|
||
|
|
message_detail.update_attributes(content: content)
|
||
|
|
end
|
||
|
|
|
||
|
|
def copy_attachments_to_new_message(new_message, user)
|
||
|
|
attachments.each do |attach|
|
||
|
|
new_message.attachments << Attachment.new(attach.attributes.except("id").merge(
|
||
|
|
quotes: 0,
|
||
|
|
downloads: 0,
|
||
|
|
author_id: user.id,
|
||
|
|
created_on: Time.now
|
||
|
|
))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
def self.bulk_move_to_other_board(message_ids, to_board_id, author_id)
|
||
|
|
message_ids.each do |id|
|
||
|
|
message = Message.find id
|
||
|
|
message.update_attributes(board_id: to_board_id, author_id: author_id) if message.parent_id.nil? # TODO 暂时只支持跟节点移动
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
# 包含二级回复的总点赞数
|
||
|
|
def total_praises_count
|
||
|
|
praises_count + children.includes(:children).reduce(0) { |count, filed|
|
||
|
|
sub_sum_count = filed.children.reduce(0) { |sub_count, sub_filed| sub_count += sub_filed.praises_count }
|
||
|
|
count += filed.praises_count
|
||
|
|
sub_sum_count += count
|
||
|
|
}
|
||
|
|
end
|
||
|
|
|
||
|
|
# 包含二级回复数的总回复数
|
||
|
|
def total_replies_count
|
||
|
|
replies_count + children.includes(:children).reduce(0) { |count, child|
|
||
|
|
sub_sum_count = child.children.reduce(0) { |sub_count, sub_child| sub_count += sub_child.replies_count }
|
||
|
|
count += child.replies_count
|
||
|
|
sub_sum_count += count
|
||
|
|
}
|
||
|
|
end
|
||
|
|
|
||
|
|
def has_replies
|
||
|
|
children.present?
|
||
|
|
end
|
||
|
|
|
||
|
|
#
|
||
|
|
def by_user_with_visible(user)
|
||
|
|
user.nil? || !user.admin? ? children.visible.limit(5) : children.limit(5)
|
||
|
|
end
|
||
|
|
|
||
|
|
def update_visits
|
||
|
|
update_attributes(:visits => visits + 1)
|
||
|
|
end
|
||
|
|
end
|