Set up Delayed Job as the backend for Active Job

[rails.git] / db / migrate / 20181031113522_create_delayed_jobs.rb

diff --git a/db/migrate/20181031113522_create_delayed_jobs.rb b/db/migrate/20181031113522_create_delayed_jobs.rb
new file mode 100644 (file)
index 0000000..69c6f1b
--- /dev/null
+++ b/db/migrate/20181031113522_create_delayed_jobs.rb
@@ -0,0 +1,22 @@
+class CreateDelayedJobs < ActiveRecord::Migration[5.2]
+  def self.up
+    create_table :delayed_jobs, :force => true do |table|
+      table.integer :priority, :default => 0, :null => false # Allows some jobs to jump to the front of the queue
+      table.integer :attempts, :default => 0, :null => false # Provides for retries, but still fail eventually.
+      table.text :handler,                    :null => false # YAML-encoded string of the object that will do work
+      table.text :last_error                                 # reason for last failure (See Note below)
+      table.datetime :run_at                                 # When to run. Could be Time.zone.now for immediately, or sometime in the future.
+      table.datetime :locked_at                              # Set when a client is working on this object
+      table.datetime :failed_at                              # Set when all retries have failed (actually, by default, the record is deleted instead)
+      table.string :locked_by                                # Who is working on this object (if locked)
+      table.string :queue                                    # The name of the queue this job is in
+      table.timestamps :null => true
+    end
+
+    add_index :delayed_jobs, [:priority, :run_at], :name => "delayed_jobs_priority"
+  end
+
+  def self.down
+    drop_table :delayed_jobs
+  end
+end