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1require 'active_record'
2
3require_relative 'user'
4
5class Post < ActiveRecord::Base
6 validates_presence_of :time, :data, :rkey
7 validates :text, length: { minimum: 0, allow_nil: false }
8
9 validates_length_of :rkey, is: 13
10 validates_length_of :text, maximum: 1000
11 validates_length_of :data, maximum: 10000
12
13 validate :check_null_bytes
14
15 belongs_to :user
16
17 has_many :likes, dependent: :delete_all
18 has_many :reposts, dependent: :delete_all
19 has_many :pins, dependent: :delete_all
20 has_many :quotes, dependent: :delete_all
21
22 def self.find_by_at_uri(uri)
23 uri = AT_URI(uri) unless uri.is_a?(AT_URI)
24 return nil unless uri.is_post?
25
26 Post.joins(:user).find_by(user: { did: uri.repo }, rkey: uri.rkey)
27 end
28
29 def at_uri
30 "at://#{user.did}/app.bsky.feed.post/#{rkey}"
31 end
32
33 def check_null_bytes
34 # Postgres doesn't allow null bytes in strings
35 errors.add(:text, 'must not contain a null byte') if text.include?("\u0000")
36 end
37end