- Refactors ALC

lib/Newsletter/AutomatedLatestContent.php

@@ -0,0 +1,69 @@
+<?php
+namespace MailPoet\Newsletter;
+
+use MailPoet\Newsletter\Editor\Transformer;
+
+if(!defined('ABSPATH')) exit;
+
+class AutomatedLatestContent {
+  function getPosts($args) {
+    $parameters = array(
+      'posts_per_page' => (isset($args['amount'])) ? (int) $args['amount'] : 10,
+      'post_type' => (isset($args['contentType'])) ? $args['contentType'] : 'post',
+      'post_status' => (isset($args['postStatus'])) ? $args['postStatus'] : 'publish',
+      'orderby' => 'date',
+      'order' => ($args['sortBy'] === 'newest') ? 'DESC' : 'ASC',
+    );
+    if(isset($args['search'])) {
+      $parameters['s'] = $args['search'];
+    }
+    if(isset($args['posts']) && is_array($args['posts'])) {
+      $parameters['post__in'] = $args['posts'];
+    }
+    $parameters['tax_query'] = $this->constructTaxonomiesQuery($args);
+    return get_posts($parameters);
+  }
+
+  function transformPosts($args, $posts) {
+    $transformer = new Transformer($args);
+    return $transformer->transform($posts);
+  }
+
+  function constructTaxonomiesQuery($args) {
+    $taxonomies_query = array();
+    if(isset($args['terms']) && is_array($args['terms'])) {
+      // Add filtering by tags and categories
+      $tags = array();
+      $categories = array();
+      foreach($args['terms'] as $term) {
+        if($term['taxonomy'] === 'category') {
+          $categories[] = $term['id'];
+        } else if($term['taxonomy'] === 'post_tag') $tags[] = $term['id'];
+      }
+      $taxonomies = array(
+        'post_tag' => $tags,
+        'category' => $categories
+      );
+      foreach($taxonomies as $taxonomy => $terms) {
+        if(!empty($terms)) {
+          $tax = array(
+            'taxonomy' => $taxonomy,
+            'field' => 'id',
+            'terms' => $terms,
+          );
+          if($args['inclusionType'] === 'exclude') $tax['operator'] = 'NOT IN';
+          $taxonomies_query[] = $tax;
+        }
+      }
+      if(!empty($taxonomies_query)) {
+        // With exclusion we want to use 'AND', because we want posts that
+        // don't have excluded tags/categories. But with inclusion we want to
+        // use 'OR', because we want posts that have any of the included
+        // tags/categories
+        $taxonomies_query['relation'] = ($args['inclusionType'] === 'exclude') ? 'AND' : 'OR';
+        return $taxonomies_query;
+      }
+    }
+    return $taxonomies_query;
+  }
+}