Major refactoring of listing/router/model relation

- updated Subscribers listing
- udpated Segments listing
- added Forms router

lib/Listing/BulkAction.php

@@ -5,15 +5,17 @@ if(!defined('ABSPATH')) exit;
 
 class BulkAction {
   private $listing = null;
+  private $action = null;
   private $data = null;
   private $model_class = null;
 
   function __construct($model_class, $data) {
-    $this->model_class = $model_class;
+    $this->action = $data['action'];
+    unset($data['action']);
     $this->data = $data;
-
+    $this->model_class = $model_class;
     $this->listing = new Handler(
-      $this->model_class,
+      $model_class,
       $this->data['listing']
     );
     return $this;
@@ -21,8 +23,9 @@ class BulkAction {
 
   function apply() {
     return call_user_func_array(
-      array($this->model_class, $this->data['action']),
-      array($this->listing, $this->data)
+      array($this->model_class, 'bulk'.ucfirst($this->action)),
+      array($this->listing->getSelection(), $this->data)
     );
+    return $models->count();
   }
 }

lib/Listing/Handler.php

@@ -4,16 +4,13 @@ namespace MailPoet\Listing;
 if(!defined('ABSPATH')) exit;
 
 class Handler {
-
   private $data = array();
   private $model = null;
 
   function __construct($model_class, $data = array()) {
     $class = new \ReflectionClass($model_class);
     $this->table_name = $class->getStaticPropertyValue('_table');
-
-    $this->model = \Model::factory($model_class);
-
+    $this->model = $model_class::select('*');
     $this->data = array(
       // pagination
       'offset' => (isset($data['offset']) ? (int)$data['offset'] : 0),
@@ -31,7 +28,7 @@ class Handler {
       'selection' => (isset($data['selection']) ? $data['selection'] : null)
     );
 
-    $this->model = $this->setFilter();
+    $this->setFilter();
     $this->setSearch();
     $this->setGroup();
     $this->setOrder();
@@ -59,9 +56,9 @@ class Handler {
 
   private function setFilter() {
     if($this->data['filter'] === null) {
-      return $this->model;
+      return;
     }
-    return $this->model->filter('filterBy', $this->data['filter']);
+    $this->model = $this->model->filter('filterBy', $this->data['filter']);
   }
 
   function getSelection() {

lib/Listing/ItemAction.php

@@ -0,0 +1,36 @@
+<?php
+namespace MailPoet\Listing;
+
+if(!defined('ABSPATH')) exit;
+
+class ItemAction {
+  private $model = null;
+  private $action = null;
+  private $data = null;
+
+  function __construct($model_class, $data) {
+    $id = (int)$data['id'];
+    unset($data['id']);
+    $this->action = $data['action'];
+    unset($data['action']);
+    $this->model = $model_class::findOne($id);
+    if(!empty($data)) {
+      $this->data = $data;
+    }
+    return $this;
+  }
+
+  function apply() {
+    if($this->data === null) {
+      return call_user_func_array(
+        array($this->model, $this->action),
+        array()
+      );
+    } else {
+      return call_user_func_array(
+        array($this->model, $this->action),
+        array($this->data)
+      );
+    }
+  }
+}