#13 add DoctrineReaderTask documentation

Author: Xavier Marchegay

docs/index.md

@@ -28,7 +28,7 @@ CleverAge\DoctrineProcessBundle\CleverAgeDoctrineProcessBundle::class => ['all'
   - [DoctrineBatchWriterTask](reference/tasks/doctrine_batchwriter_task.md)
   - [DoctrineCleanerTask](reference/tasks/doctrine_cleaner_task.md)
   - [DoctrineDetacherTask](reference/tasks/doctrine_detacher_task.md)
-  - [DoctrineReaderTask]
+  - [DoctrineReaderTask](reference/tasks/doctrine_reader_task.md)
   - [DoctrineRefresherTask](reference/tasks/doctrine_refresher_task.md)
   - [DoctrineRemoverTask](reference/tasks/doctrine_remover_task.md)
   - [DoctrineWriterTask](reference/tasks/doctrine_writer_task.md)

docs/reference/tasks/doctrine_reader_task.md

@@ -0,0 +1,49 @@
+DoctrineReaderTask
+==================
+
+Reads Doctrine entity from a repository
+
+Task reference
+--------------
+
+* **Service**: `CleverAge\DoctrineProcessBundle\Task\EntityManager\DoctrineReaderTask`
+
+Accepted inputs
+---------------
+
+None.
+
+Possible outputs
+----------------
+
+Outputs the result set of the entities.
+
+Options
+-------
+
+
+| Code              | Type               | Required | Default   | Description                                    |
+|-------------------|--------------------|:--------:|-----------|------------------------------------------------|
+| `class_name`      | `string`           |  **X**   | `null`    | Name of the class (e.g. : 'App\Entity\Author') |
+| `criteria`        | `array`            |          | `[]`      | Criteria of the query                          |
+| `order_by`        | `array`            |          | `[]`      | Order by of the query                          |
+| `limit`           | `int` or `null`    |          | `null`    | Result max count                               |
+| `offset`          | `int` or `null`    |          | `null`    | Result first item offset                       |
+| `empty_log_level` | `string` or `null` |          | `warning` | Log level if the result set is empty           |
+
+
+Example
+-------
+
+```yaml
+entry:
+  service: '@CleverAge\DoctrineProcessBundle\Task\EntityManager\DoctrineReaderTask'
+  options:
+    class_name: 'App\Entity\Author'
+    criteria:
+      lastname: 'King'
+    order_by:
+      lastname: 'asc'
+    limit: 5
+    offset: 3
+```