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Pessimistic locking in Rails
https://dev.to/nodefiend/rails-pessimistic-locking-45ak Locking::Pessimistic provides support for row-level locking ruby Account.lock.find(1) Start a transaction and lock at the same time by calli...
Set up CORS on Amazon S3
https://docs.aws.amazon.com/AmazonS3/latest/user-guide/add-cors-configuration.html
Use different credit cards for different Heroku apps
https://help.heroku.com/T8Q2N4SV/how-do-i-manage-billing-multiple-clients-with-separate-apps
Convert local master into a branch
If you want to convert a local master branch (that is ahead of remote) into a branch bash git checkout master git branch experiment git reset --hard heroku/master git checkout experiment
Sidekiq
bash require 'sidekiq/api' https://stackoverflow.com/questions/12683222/are-there-console-commands-to-look-at-whats-in-the-queue-and-to-clear-the-queue ```yml :verbose: false :concurrency: 15 :max...
Create a random password in Rails
ruby SecureRandom.alphanumeric
Compared to Remote schooling
https://www.nytimes.com/2020/09/23/style/wild-and-free-home-school.html
Run a Rails server on https and localhost
openssl req -x509 -sha256 -nodes -newkey rsa:2048 -days 365 -keyout localhost.key -out localhost.crt then rails s -b 'ssl://localhost:3000?key=localhost.key&cert=localhost.crt' This will give y...
Foreign exchange accounting
https://www.accountingtools.com/articles/foreign-exchange-accounting.html
Modeling double entry accounting in a relational database
https://stackoverflow.com/questions/59432964/relational-data-model-for-double-entry-accounting https://medium.com/@RobertKhou/double-entry-accounting-in-a-relational-database-2b7838a5d7f8 https://c...
Rails Multi Environment Credentials
I ended up deleting master.key and credentials.yml.enc since I'd rather use development and production specific keys and credentials per below ```ruby rails credentials:show --environment=developme...
Pass persisted params in a Rails form
If the params you want to persist are state and order ruby <% request.params.slice('state', 'order').each do |key, value| %> <%= hidden_field_tag key, value %> <% end %>
Find a process and kill it in terminal
% ps aux | grep ruby lukeko 29806 0.0 0.0 4277500 696 s000 S+ 6:49PM 0:00.00 <process you don't want> % kill -9 29806
Actiontext
Go to https://guides.rubyonrails.org/actiontextoverview.html Only extra things left to do is @import "trix/dist/trix";
Add Stripe to a Rails app
https://courses.gorails.com/payments-with-rails-master-class https://rubygems.org/gems/stripe
Checkout one from from a previous commit
git checkout c96a579 app/assets/stylesheets/menu.scss
Override update_counters from counter_cache: true
```ruby class Post < ApplicationRecord belongsto :author, countercache: true end class Author < ApplicationRecord has_many :posts def self.updatecounters(id, counters) Author.find(id).dos...
Remove folder and all files inside it in Terminal
using rm can be very dangerous if you're not careful -- get in the habit of using mv instead do this mv .git ~/.Trash instead of rm -rf .git the first command is safer on many levels
Branch from a previous commit on master as though the branch was made before ...
remove the commits from master as though you had made the branch before those commits were made git checkout master git branch branch-name git reset --hard <sha1>
Create alias to stash untracked files with a message
git config --global alias.stush 'stash push -u -m' then instead of git stash push -u -m "helpful message" you can just do git stush 'helpful message'