Method | Uses Default Accessor | Saved to Database | Validations | Callbacks | Touches updated_at | Readonly check |
---|---|---|---|---|---|---|
attribute= |
Yes | No | n/a | n/a | n/a | n/a |
write_attribute |
No | No | n/a | n/a | n/a | n/a |
update_attribute |
Yes | Yes | No | Yes | Yes | Yes |
attributes= |
Yes | No | n/a | n/a | n/a | n/a |
update |
Yes | Yes | Yes | Yes | Yes | Yes |
update_column |
No | Yes | No | No | No | Yes |
update_columns |
No | Yes | No | No | No | Yes |
User::update |
Yes | Yes | Yes | Yes | Yes | Yes |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
parse_git_branch() { | |
git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/' | |
} | |
PS1="${debian_chroot:+($debian_chroot)}\w\$(parse_git_branch) $ " |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
heroku pg:backups:capture | |
heroku pg:backups:download | |
pg_restore --verbose --clean --no-acl --no-owner -h localhost -d rails_development latest.dump |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
aws s3 source tujuan | |
example | |
aws s3 sync s3://mybucket . | |
output | |
download: s3://mybucket/test.txt to test.txt | |
download: s3://mybucket/test2.txt to test2.txt |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
files.download('example.txt') # from colab to browser download |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
cd /mnt/$yourdrivealphabet | |
default: &default | |
adapter: postgresql | |
encoding: unicode | |
# For details on connection pooling, see Rails configuration guide | |
# http://guides.rubyonrails.org/configuring.html#database-pooling | |
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %> | |
username: username in postgres windows | |
password: pass in postgres windows |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
https://www.youtube.com/watch?v=RS36gBEp8OI&feature=youtu.be | |
make the state and amethod that change it in parent | |
-> | |
send the method that manipulate state to children | |
-> | |
children then call the method |
rails generate migration enable_pgcrypto_extension
class EnablePgcryptoExtension < ActiveRecord::Migration[5.1]
def change
enable_extension 'pgcrypto'
end
end
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!-- Code from d3-graph-gallery.com --> | |
<!DOCTYPE html> | |
<meta charset="utf-8" /> | |
<!-- Load d3.js --> | |
<script src="https://d3js.org/d3.v4.js"></script> | |
<!-- Create a div where the graph will take place --> | |
<div id="my_dataviz"></div> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
title |
OlderNewer