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Example code of elvetemedve/djjob

Informations about the package djjob

DJJob

DJJob allows PHP web applications to process long-running tasks asynchronously. It is a PHP port of delayed_job (developed at Shopify), which has been used in production at SeatGeek since April 2010.

Like delayed_job, DJJob uses a jobs table for persisting and tracking pending, in-progress, and failed jobs.

Requirements

Setup

Import the sql database table.

The jobs table structure looks like:

You may need to use BLOB as the column type for handler if you are passing in serialized blobs of data instead of record ids. For more information, see this link This may be the case for errors such as the following: unserialize(): Error at offset 2010 of 2425 bytes

Tell DJJob how to connect to your database:

Usage

Jobs are PHP objects that respond to a method perform. Jobs are serialized and stored in the database.

Unlike delayed_job, DJJob does not have the concept of task priority (not yet at least). Instead, it supports multiple queues. By default, jobs are placed on the "default" queue. You can specifiy an alternative queue like:

At SeatGeek, we run an email-specific queue. Emails have a sendLater method which places a job on the email queue. Here's a simplified version of our base Email class:

Because Email has a perform method, all instances of the email class are also jobs.

Running the jobs

Running a worker is as simple as:

Initializing your environment, connecting to the database, etc. is up to you. We use symfony's task system to run workers, here's an example of our jobs:worker task:

The worker will exit if the database has any connectivity problems. We use god to manage our workers, including restarting them when they exit for any reason.

Changes

All versions of djjob with dependencies

PHP Build Version
Package Version
Requires php Version >=5.1.0
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