일 | 월 | 화 | 수 | 목 | 금 | 토 |
---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | |||
5 | 6 | 7 | 8 | 9 | 10 | 11 |
12 | 13 | 14 | 15 | 16 | 17 | 18 |
19 | 20 | 21 | 22 | 23 | 24 | 25 |
26 | 27 | 28 | 29 | 30 | 31 |
- orange pi
- mqtt
- Raspberry Pi
- odroid-x2
- 아두이노
- Python
- uno
- 오렌지파이
- flask
- Android
- parser
- 개발환경
- Arduino
- STM32F4
- Beacon
- JSON
- Server
- python3
- java
- Nginx
- 라즈베리파이
- ruby on rails
- rails
- RUBY
- ubuntu
- Raspberry Pi 3
- dht11
- BLE
- nano
- IOT
- Today
- Total
목록Programming/Ruby on Rails (8)
[熱情]
3down votehttps://stackoverflow.com/questions/302782/rails-how-do-i-check-if-a-column-has-a-value I am giving a very detailed answer to this Question "How do I check if a column has a value?".First of all, it is important to note that an attribute can have four kinds of values in it.nil value i.e "nil" stored in the databaseempty value i.e "" an empty string with no spacesempty string with space..
https://github.com/carrierwaveuploader/carrierwave
루비온레일즈 가이드 http://guides.rorlab.org/getting_started.html 초레가 (초보자를 위한 레이즈 가이드북)https://www.railsguidebook.com/ 레이즈 걸즈 http://rorlakr.github.io/railsgirls/ facebook , Ruby on Rails , Korea (페이스북 레일즈 그룹)https://www.facebook.com/groups/rubyonrailskorea/
active admin - 어드민 - https://github.com/activeadmin/activeadmin- https://activeadmin.info Authentication 관련 Devise- 로그인 - https://github.com/plataformatec/devise- https://www.gitbook.com/book/luciuschoi/exploring_devise/detailshttps://www.youtube.com/watch?v=8GYh6w6g7b0 Cancancanhttps://github.com/CanCanCommunity/cancancan attr_encryptedhttps://github.com/attr-encrypted/attr_encrypted xmlrpchttp..