The ActiveModel::UnknownAttributeError is not resolved in Rails.

ActiveModel::UnknownAttributeError in PostsController#create
unknown attribute 'visitor_id' for Notification.

Review results of model notification in railsc

irb(main): 001:0>Notification.new
(0.2ms) SELECT sqlite_version(*)
TRANSACTION(0.0ms) begin transaction=>#<Notification:0x0000562096ee9d98
id: nil,
visitor_id:nil, 
visited_id:nil,
post_id:nil,
reply_id —nil,
action: '' ,
checked: false,
created_at:nil,
updated_at:nil>

migrate/create_notifications.rb

class CreateNotifications <ActiveRecord::Migration [6.1]
  def change
    create_table —notifications do | t |
      t.interger:visitor_id, null:false
      t. integer:visited_id, null:false
      t.integer:post_id
      t. integer —reply_id
      t.string:action, default:', null:false
      t. boolean: checked, default: false, null: false

      t.timestamps
    end

    add_index:notifications,:visitor_id
    add_index:notifications,:visited_id
    add_index:notifications,:post_id
    add_index:notifications,:reply_id

  end
end

post_create.rb

class PostsController <ApplicationController
  before_action —Authenticate_user!


  def create
    @post=Post.new(post_params)
    @post.user_id=current_user.id
    @post.sender_id=current_user.id
    @receiver=User.where.not(id:current_user.id).order(:received_at).first
    @post.receiver_id=@r eceiver.id
    @post.save!

    @post.create_notification_by(current_user)
    response_to do | format |
      format.html {redirect_to request.reference}
      format.js
    end


    rescue ActiveRecord::RecordInvalid=>e
      ppe.record.errors

    @receiver.update!(received_at::Time.now)

    redirect_to posts_path
  end


    private
        def post_params
          param.require(:post).permit(:dear,:content,:from,:sender_id,:receiver_id,:user_id)
        end
end

model/post.rb

create_notification_by (current_user)
    notification=current_user.active_notifications.new(
      post_id: self.id,
      visited_id —self.receiver_id,
      action: "post"
    )
    notification.save if notification.valid?
  end