IanVaughan

tables = [ "users" ]
tables.each do |table|
  count = ActiveRecord::Base.connection.execute("SELECT count(*) from #{table};")
  puts "#{table}, #{count.entries.first["count"]}"
end

IanVaughan

branch=$(git branch --show-current)

for sha1 in $(git rev-list --reverse ...master) ; do
    git push origin $sha1:$branch --force
done

IanVaughan

{
	"blocks": [
		{
			"type": "section",
			"text": {
				"type": "mrkdwn",
				"text": "<http://www.foo.com|This message *is* a link>"
			}
		}
	]

IanVaughan

gcloud config set project ${PROJECT_ID}
gcloud sql instances create ex-kills-db-us-west1 --region=us-west1 --database-version=POSTGRES_9_6 --tier=db-f1-micro
gcloud sql instances describe ex-kills-db-us-west1 #=> connectionName: ex-kills:us-west1:ex-kills-db-us-west1
gcloud sql users set-password postgres --instance=ex-kills-db-us-west1 --prompt-for-password #=> 123456

gcloud container clusters create ex-kills-cluster-us-west1 --num-nodes=1 --zone=us-west1 --scopes=gke-default,sql-admin
gcloud container clusters get-credentials --zone=us-west1 ex-kills-cluster-us-west1
gcloud config set container/cluster ex-kills-cluster-us-west1

mkdir -p /tmp/cloudsql

IanVaughan

May 13 08:00:33.022	/app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/access_token.rb:114:in `get'
May 13 08:00:33.022	/app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/access_token.rb:107:in `request'
May 13 08:00:33.022	pid=4 tid=baglec WARN: /app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/client.rb:119:in `request'
May 13 08:00:33.021	pid=4 tid=baglec WARN: OAuth2::Error: internal_server_error: Sorry, we are experiencing technical difficulties. Please try again later.

May 12 20:00:59.103	/app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/access_token.rb:114:in `get'
May 12 20:00:59.103	/app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/access_token.rb:107:in `request'
May 12 20:00:59.103	pid=4 tid=40uw WARN: /app/vendor/bundle/ruby/2.7.0/gems/oauth2-1.4.2/lib/oauth2/client.rb:119:in `request'

IanVaughan

# Put somewhere in your $PATH, and chmod +x git-rename
# On a branch with files already moved and changed locally but not in git.
# Usage: 
# git rename existing-checked-in-filename new-and-changed-filename

#!/usr/bin/env bash
FROM=$1
TO=$2

mv $TO ${TO}-1

IanVaughan

#!/usr/bin/env bash

# usage: On your branch or commit 'cred-diff production'

git checkout production --quiet
rails credentials:show --environment $1 > /tmp/prod
git checkout - --quiet
rails credentials:show --environment $1 > /tmp/yours
diff /tmp/prod /tmp/yours
rm /tmp/prod /tmp/yours

IanVaughan

The part which wasn’t clear enough was on the topic how the read models extraction can help in designing aggregates. Here’s my written attempt to explain this strategy:

Introduce a Service objects layer (aka application layer)

class RegisterUser
  def call
    User.create
    Mailer.send
  end

IanVaughan

-----> Fetching heroku/ci-postgresql buildpack...
       buildpack downloaded
-----> Fetching heroku/ci-redis buildpack...
       buildpack downloaded
-----> Fetching heroku/ruby buildpack...
       buildpack downloaded
-----> Fetching heroku/nodejs buildpack...
       buildpack downloaded
-----> Postgresql app detected

IanVaughan

diff --git a/db/schema.rb b/db/schema.rb
index 79ce7b88..d9914a59 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.

-ActiveRecord::Schema.define(version: 2020_03_16_124239) do
+ActiveRecord::Schema.define(version: 2020_03_17_181241) do