52 lines
1.2 KiB
Ruby
52 lines
1.2 KiB
Ruby
class CreateMessageRecipients < ActiveRecord::Migration[4.2]
|
|
class Message < ActiveRecord::Base
|
|
has_many :message_recipients
|
|
end
|
|
|
|
class MessageRecipient < ActiveRecord::Base
|
|
end
|
|
|
|
def up
|
|
create_table :message_recipients do |t|
|
|
t.references :message, index: true, null: false
|
|
t.references :user, null: false
|
|
t.integer :email_state, default: 0, null: false
|
|
t.datetime :read_at
|
|
end
|
|
|
|
add_index :message_recipients, [:user_id, :read_at]
|
|
|
|
Message.all.each do |m|
|
|
recipients = YAML.load(m.recipients_ids).map do |r|
|
|
{
|
|
message_id: m.id,
|
|
user_id: r,
|
|
email_state: m.email_state
|
|
}
|
|
end
|
|
MessageRecipient.create! recipients
|
|
end
|
|
|
|
change_table :messages do |t|
|
|
t.remove :recipients_ids
|
|
t.remove :email_state
|
|
end
|
|
end
|
|
|
|
def down
|
|
change_table :messages do |t|
|
|
t.text :recipients_ids
|
|
t.integer :email_state, default: 0, null: false
|
|
end
|
|
|
|
messages = Message.all.includes(:message_recipients).map do |m|
|
|
recipients = m.message_recipients.map(&:user_id)
|
|
m.recipients_ids = recipients.to_yaml
|
|
m.email_state = m.email_state
|
|
m.save!
|
|
end
|
|
|
|
drop_table :message_recipients
|
|
end
|
|
end
|