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Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/active_job_basics.md | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/guides/source/active_job_basics.md b/guides/source/active_job_basics.md index ae5d21d546..f7864f4961 100644 --- a/guides/source/active_job_basics.md +++ b/guides/source/active_job_basics.md @@ -13,6 +13,7 @@ After reading this guide, you will know: -------------------------------------------------------------------------------- + Introduction ------------ @@ -40,7 +41,7 @@ This section will provide a step-by-step guide to creating a job and enqueue it. ### Create the Job Active Job provides a Rails generator to create jobs. The following will create a -job in app/jobs: +job in `app/jobs`: ```bash $ bin/rails generate job guests_cleanup @@ -58,7 +59,7 @@ As you can see, you can generate jobs just like you use other generators with Rails. If you don't want to use a generator, you could create your own file inside of -app/jobs, just make sure that it inherits from `ActiveJob::Base`. +`app/jobs`, just make sure that it inherits from `ActiveJob::Base`. Here's how a job looks like: @@ -135,11 +136,12 @@ You can easy change your adapter: YourApp::Application.config.active_job.queue_adapter = :sidekiq ``` + Queues ------ -Most of the adapters supports multiple queues. With Active Job you can schedule the job -to run on a specific queue: +Most of the adapters supports multiple queues. With Active Job you can schedule +the job to run on a specific queue: ```ruby class GuestsCleanupJob < ActiveJob::Base @@ -155,17 +157,17 @@ you need to specify the queues to listen to. Callbacks --------- -Active Job provides hooks during the lifecycle of a job. Callbacks allows you to trigger -logic during the lifecycle of a job. +Active Job provides hooks during the lifecycle of a job. Callbacks allows you to +trigger logic during the lifecycle of a job. ### Available callbacks -* before_enqueue -* around_enqueue -* after_enqueue -* before_perform -* around_perform -* after_perform +* `before_enqueue` +* `around_enqueue` +* `after_enqueue` +* `before_perform` +* `around_perform` +* `after_perform` ### Usage @@ -189,8 +191,10 @@ class GuestsCleanupJob < ActiveJob::Base end ``` + ActionMailer ------------ + One of the most common jobs in a modern web application is sending emails outside of the request-response cycle, so the user doesn't have to wait on it. Active Job is integrated with Action Mailer so you can easily send emails async: @@ -203,11 +207,12 @@ UserMailer.welcome(@user).deliver UserMailer.welcome(@user).deliver_later ``` + GlobalID -------- -Active Job supports GlobalID for parameters. This makes it possible -to pass live Active Record objects to your job instead of class/id pairs, which -you then have to manually deserialize. Before, jobs would look like this: +Active Job supports GlobalID for parameters. This makes it possible to pass live +Active Record objects to your job instead of class/id pairs, which you then have +to manually deserialize. Before, jobs would look like this: ```ruby class TrashableCleanupJob @@ -228,12 +233,13 @@ class TrashableCleanupJob end ``` -This works with any class that mixes in ActiveModel::GlobalIdentification, which +This works with any class that mixes in `ActiveModel::GlobalIdentification`, which by default has been mixed into Active Model classes. Exceptions ---------- + Active Job provides a way to catch exceptions raised during the execution of the job: |