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Josh Lin joshlin
tsiege
/ The Technical Interview Cheat Sheet.md
Last active
December 5, 2025 18:04
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.
I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
\
tinynumbers
/ _readme.md
Last active
December 13, 2021 14:17
This shows one technique for preserving filters on index pages for ActiveAdmin resources, without having to patch the ActiveAdmin core.
It restores any previously-used filters whenever the index page is rendered for a resource, unless the current request is an actual application of new filters. It also properly handles the clear-filters button (via a synchronous Ajax request that happens immediately before the normal filter form processing).
Yes, it's a bit of a hack, but it has worked well for me so far.
amolpujari
/ dashboard.rb
Last active
March 24, 2021 11:36
activeadmin dashboard with table rows count graph
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| ActiveAdmin.register_page "Dashboard" do | |
| menu :priority => 1, :label => proc{ I18n.t("active_admin.dashboard") } | |
| content :title => proc{ I18n.t("active_admin.dashboard") } do | |
| # div :class => "blank_slate_container", :id => "dashboard_default_message" do | |
| # span :class => "blank_slate" do | |
| # span "Welcome to Active Admin. This is the default dashboard page." | |
| # small "To add dashboard sections, checkout 'app/admin/dashboards.rb'" | |
| # end |
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| require 'yaml' | |
| require 'json' | |
| # require 'active_support/core_ext' | |
| #HashWithIndifferentAccess | |
watson
/ ability.rb
Created
October 5, 2011 09:50
Active Admin CanCan integration with shared front/backend User model and multi-level autherization
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| # app/models/ability.rb | |
| # All front end users are authorized using this class | |
| class Ability | |
| include CanCan::Ability | |
| def initialize(user) | |
| user ||= User.new | |
| can :read, :all |