vietch2612

public class Shape {}
public class Circle extends Shape {
   private double radius;
}
public class Square extends Shape {
   private double height;
}
public class AreaDisplay {
   public double calculateArea(Shape shape) {
      if (shape instanceof Circle) {

vietch2612

Keybase proof

I hereby claim:

• I am vietch2612 on github.
• I am hoaiviet (https://keybase.io/hoaiviet) on keybase.
• I have a public key ASCrpuKRREIfbnjJlsNivC1kJkjTCyv12Pwvo9yMAVIXxgo

To claim this, I am signing this object:

vietch2612

Rails submit button with loading icon

• Use button_tag (submit_tag does not work)
• https://stackoverflow.com/questions/37377691/adding-icon-in-data-loading-text-in-rails-submit-tag

= button_tag "Import CSV", { class: "btn btn-primary btn-sm", "data-disable-with" => "<i class='fa fa-circle-o-notch fa-spin'></i> Importing".html_safe }.merge(submit_options)

 = link_to "Activate", activate_pulse_feed_path(feed.id),

vietch2612

# Assumes the database container is named 'db'

DOCKER_DB_NAME="$(docker-compose ps -q db)"
DB_HOSTNAME=db
DB_USER=postgres
LOCAL_DUMP_PATH="path/to/local.dump"

docker-compose up -d db
docker exec -i "${DOCKER_DB_NAME}" pg_restore -C --clean --no-acl --no-owner -U "${DB_USER}" -d "${DB_HOSTNAME}" < "${LOCAL_DUMP_PATH}"
docker-compose stop db