确保设计将在用户通过身份验证时更新模型上的.zip

# devise_last_seen This devise extension, will ensure that devise will update a flag/timestamp on the model whenever a user is set. With this kind of feature you could show in your views something like **last seen 3 weeks ago** or **last seen 2 minutes ago**. [](https://github.com/brunoocasali/devise_last_seen/actions/workflows/gem.yml) [](https://codeclimate.com/github/brunoocasali/devise_last_seen/test_coverage) [](https://codeclimate.com/github/brunoocasali/devise_last_seen/maintainability) ## Installation You know, add this line to your application's Gemfile: ```ruby gem 'devise_last_seen' ``` And then execute: $ bundle ## Usage In your model, add `:lastseenable` module as such: ```rb # app/models/user.rb class User < ApplicationRecord devise :database_authenticable, ..., :lastseenable end ``` Generate a rails migration to add the column to your devise model: ``` bundle exec rails g migration add_last_seen_to_users last_seen:datetime ``` ```rb class AddLastSeenToUsers < ActiveRecord::Migration[6.1] def change add_column :users, :last_seen, :datetime end end ``` ## Configuration Besides the column requirement you don't need customizations, but if you want to... ```rb # config/initializers/devise.rb Devise.setup do |config| ... # Interval (in seconds) to update the :last_seen_at_attribute attr # config.last_seen_at_interval = 5.minutes # Attribute who will be updated every time a user is set by the Warden's after_save callback # Remember to check if this column name is present on the devise model table. # config.last_seen_at_attribute = :last_seen end ``` ## Development After checking out the repo, run `bin/setup` to install dependencies. Then, run `bundle exec rspec` to run the tests. To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org). ## Contributing Bug reports and pull requests are welcome on GitHub at https://github.com/brunoocasali/devise_last_seen. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct. ## License The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT). ## Code of Conduct Everyone interacting in the `devise_last_seen` project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/devise_last_seen/blob/master/CODE_OF_CONDUCT.md). ## Hall of fame! This gem only could be done with help of other gems like: - @shenoudab [devise_traceable](https://github.com/shenoudab/devise_traceable) - @devise-security [devise-security](https://github.com/devise-security/devise-security) - @heartcombo [devise](https://github.com/heartcombo/devise) - @ctide [devise_lastseenable](https://github.com/ctide/devise_lastseenable) - @iplan [iplan-devise-lastseenable](https://github.com/iplan/iplan-devise-lastseenable)