Sublime Text 2 ships with a CLI called subl (why not "sublime", go figure). This utility is hidden in the following folder (assuming you installed Sublime in /Applications like normal folk. If this following line opens Sublime Text for you, then bingo, you're ready.
open /Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl
You can find more (official) details about subl here: http://www.sublimetext.com/docs/2/osx_command_line.html
As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.
All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.
| #!/bin/sh | |
| # Converts a mysqldump file into a Sqlite 3 compatible file. It also extracts the MySQL `KEY xxxxx` from the | |
| # CREATE block and create them in separate commands _after_ all the INSERTs. | |
| # Awk is choosen because it's fast and portable. You can use gawk, original awk or even the lightning fast mawk. | |
| # The mysqldump file is traversed only once. | |
| # Usage: $ ./mysql2sqlite mysqldump-opts db-name | sqlite3 database.sqlite | |
| # Example: $ ./mysql2sqlite --no-data -u root -pMySecretPassWord myDbase | sqlite3 database.sqlite |
| <?php | |
| /** | |
| * This is free and unencumbered software released into the public domain. | |
| * | |
| * Anyone is free to copy, modify, publish, use, compile, sell, or | |
| * distribute this software, either in source code form or as a compiled | |
| * binary, for any purpose, commercial or non-commercial, and by any | |
| * means. | |
| * |
