Move widget classes that are exclusive to their own space

modules/backend/widgets/Table.php

@@ -36,7 +36,7 @@ class Table extends WidgetBase
     protected $recordsKeyFrom;
 
     protected $dataSourceAliases = [
-        'client' => '\Backend\Classes\TableClientMemoryDataSource'
+        'client' => '\Backend\Widgets\Table\ClientMemoryDataSource'
     ];
 
     /**
@@ -79,7 +79,7 @@ class Table extends WidgetBase
 
     /**
      * Returns the data source object.
-     * @return \Backend\Classes\TableDataSourceBase 
+     * @return \Backend\Widgets\Table\DataSourceBase
      */
     public function getDataSource()
     {
@@ -174,7 +174,7 @@ class Table extends WidgetBase
 
     protected function isClientDataSource()
     {
-        return $this->dataSource instanceof \Backend\Classes\TableClientMemoryDataSource;
+        return $this->dataSource instanceof \Backend\Widgets\Table\ClientMemoryDataSource;
     }
 
     /*

modules/backend/widgets/table/ClientMemoryDataSource.php

@@ -1,9 +1,9 @@
-<?php namespace Backend\Classes;
+<?php namespace Backend\Widgets\Table;
 
 /**
  * The client-memory data source for the Table widget.
  */
-class TableClientMemoryDataSource extends TableDataSourceBase
+class ClientMemoryDataSource extends TableDataSourceBase
 {
     /**
      * @var array Keeps the data source data.

modules/backend/widgets/table/DataSourceBase.php

@@ -1,9 +1,9 @@
-<?php namespace Backend\Classes;
+<?php namespace Backend\Widgets\Table;
 
 /**
  * Base class for the Table widget data sources.
  */
-abstract class TableDataSourceBase
+abstract class DataSourceBase
 {
     /**
      * @var string Specifies a name of record's key column 

modules/backend/widgets/table/README.md

@@ -198,7 +198,7 @@ The widget is configured with YAML file. Required parameters:
 
 The `dataSource` parameter can take aliases for some data source classes for the simpler configuration syntax. Known aliases are:
 
-* `client` = \Backend\Classes\TableClientMemoryDataSource
+* `client` = \Backend\Widgets\Table\ClientMemoryDataSource
 
 ### Column definitions