When do I use save!, create! and update_attributes! in Rails?

When do I use save!, create! and update_attributes! in Rails?

ruby-on-rails activerecord transactions

ruby-on-rails

How to rescue model transaction and show the user an error?

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ruby-on-rails

How to tell if already within a database transaction in ruby on rails?

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ruby-on-rails

How to test that a certain function uses a transaction in Rails and rspec 2

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ruby-on-rails

How to raise an ActiveRecord::Rollback exception and return a value together?

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ruby-on-rails

How do I run a migration without starting a transaction in Rails?

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ruby-on-rails

Transaction vs Truncation Database Cleaner

ruby-on-rails database transactions cucumber gem

ruby-on-rails

Why does Rails ignore a Rollback in a (pseudo)nested transaction?

mysql ruby-on-rails ruby activerecord transactions

ruby-on-rails

How to set transaction isolation level using ActiveRecord connection?

ruby-on-rails ruby activerecord transactions isolation-level

ruby-on-rails

thorough guide to Locks/Transactions/Isolation Levels in Rails [closed]

ruby-on-rails activerecord transactions locking isolation-level

ruby-on-rails

Does rails do a rollback if I use begin...rescue?

ruby-on-rails exception-handling transactions

ruby-on-rails

Capybara+Selemium: How to initialize database in an integration test code and make it visible in Rails application?

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ruby-on-rails

Does ActiveRecord perform inserts/deletes in bulk when inside a transaction?

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ruby-on-rails

Switching between multiple databases in Rails without breaking transactions

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ruby-on-rails

Rails transaction doesn't rollback on validation error

ruby-on-rails transactions

ruby-on-rails