clayenga
This file contains 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
| def SomeController < ApplicationController | |
| def some_action_1 | |
| line_item = LineItem.find(params[:line_item_id]) | |
| user_qty = Integer(params[:user_qty]) rescue nil | |
| unless user_qty && (1...line_item.quantity) === user_qty | |
| render partial: '/my/error/partial' | |
| return | |
| end | |
clayenga
/ gist:4112534
Created
November 19, 2012 18:26
SQL question (total book prices for each genre)
This file contains 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
| books: | |
| id | title | price | genre_id | |
| -------------------------------------------------- | |
| 1 | Gone With the Wind | 15 | 1 | |
| 2 | The Lord of the Rings | 30 | 2 | |
| 3 | The Hobbit | 10 | 2 | |
| 4 | Pride and Predjudice | 10 | 1 | |
| 5 | Complete Sherlock Holmes | 9 | 4 |