better fix for the worker doctype

use the queue's doctype if one is not provided. also adds the option to the readme

readme.md

@@ -114,6 +114,7 @@ Option | Default | Description
 interval | `1500` | Time, in `ms` to poll for new jobs in the queue.
 size | `10` | Number of records to return when polling for new jobs. Higher values may result in less Elasticsearch requests, but may also take longer to execute. A bit of tuning based on the number of workers you have my be required here.
 client | | Alternative elasticsearch client instance, if you need to use one other than what the queue was created with.
+doctype | `queue.doctype` | The doctype to use when polling for new jobs. You probably don't want to change this.
 
 The worker's `output` can either be the raw output from the job, or on object that specifies the output's content type.
 

src/index.js

@@ -54,10 +54,7 @@ export default class Esqueue extends events.EventEmitter {
   }
 
   registerWorker(type, workerFn, opts) {
-    const options = Object.assign({
-      doctype: this.settings.doctype,
-    }, opts);
-    const worker = new Worker(this, type, workerFn, options);
+    const worker = new Worker(this, type, workerFn, opts);
     this._workers.push(worker);
     return worker;
   }

src/worker.js

@@ -30,7 +30,7 @@ export default class Worker extends events.EventEmitter {
     this.workerFn = workerFn;
     this.checkInterval = opts.interval || 1500;
     this.checkSize = opts.size || 10;
-    this.doctype = opts.doctype || constants.DEFAULT_SETTING_DOCTYPE;
+    this.doctype = opts.doctype || this.queue.doctype || constants.DEFAULT_SETTING_DOCTYPE;
 
     this.debug = (...msg) => debug(...msg, `id: ${this.id}`);