From e3c2639e80665e623e1f1f4ce93fe80babb59f09 Mon Sep 17 00:00:00 2001
From: Daniel Weipert <code@drogueronin.de>
Date: Wed, 16 Dec 2020 22:07:02 +0100
Subject: Adds Taxonomy Term Meta support

---
 composer.json         |  2 +-
 src/Metabox.php       | 39 +++++++++++++++++++++++++++++++++++++--
 tests/MetaboxTest.php | 19 +++++++++++++++++++
 3 files changed, 57 insertions(+), 3 deletions(-)

diff --git a/composer.json b/composer.json
index c23a035..e5c651b 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
     "name": "drogueronin/metaboxes",
-    "version": "1.0.2",
+    "version": "1.1.0",
     "type": "library",
     "license": "MIT",
     "authors": [
diff --git a/src/Metabox.php b/src/Metabox.php
index b2ae2e4..b04ef00 100644
--- a/src/Metabox.php
+++ b/src/Metabox.php
@@ -26,6 +26,11 @@ class Metabox
      */
     public array $posttypes = [];
 
+    /**
+     * The Taxonomies/s to add the Metabox to
+     */
+    public array $taxonomies = [];
+
     /**
      * The Box's fields to add
      *
@@ -72,6 +77,24 @@ class Metabox
         return $this;
     }
 
+    /**
+     * Assign a Taxonomy to add the Metabox to
+     *
+     * @param  string|array $taxonomies
+     *
+     * @return $this
+     */
+    public function taxonomy($taxonomies)
+    {
+        $taxonomies = (array)$taxonomies;
+
+        foreach ($taxonomies as $taxonomy) {
+            $this->taxonomies[$taxonomy] = $taxonomy;
+        }
+
+        return $this;
+    }
+
     /**
      * @param MetaboxField|array $fields
      *
@@ -110,7 +133,7 @@ class Metabox
      */
     public function add()
     {
-        // build the rule groups for the location
+        // build the post type rule groups
         $postTypeRuleGroups = array_map(function ($posttype) {
             return [[
                 'param' => 'post_type',
@@ -119,11 +142,23 @@ class Metabox
             ]];
         }, $this->posttypes);
 
+        // build the taxonomy rule groups
+        $taxonomyRuleGroups = array_map(function ($taxonomy) {
+            return [[
+                'param' => 'taxonomy',
+                'operator' => '==',
+                'value' => $taxonomy,
+            ]];
+        }, $this->taxonomies);
+
+        // merge the rules groups for the location
+        $ruleGroups = array_merge($postTypeRuleGroups, $taxonomyRuleGroups);
+
         // merge with extra options
         $fieldGroup = array_merge_recursive([
             'key' => $this->key,
             'title' => $this->title,
-            'location' => $postTypeRuleGroups,
+            'location' => $ruleGroups,
         ], $this->options);
 
         // add field group
diff --git a/tests/MetaboxTest.php b/tests/MetaboxTest.php
index 1a1353e..e26c9f2 100644
--- a/tests/MetaboxTest.php
+++ b/tests/MetaboxTest.php
@@ -52,6 +52,25 @@ class MetaboxTest extends TestCase
         $this->assertEquals($expectedPostTypes, $this->metabox->posttypes);
     }
 
+    /**
+     * @test
+     */
+    public function assignsTaxonomyOnce()
+    {
+        $this->metabox->taxonomy(['category', 'post_tag']);
+
+        $expectedTaxonomies = [
+            'category' => 'category',
+            'post_tag' => 'post_tag',
+        ];
+
+        $this->assertEquals($expectedTaxonomies, $this->metabox->taxonomies);
+
+        $this->metabox->taxonomy('category');
+
+        $this->assertEquals($expectedTaxonomies, $this->metabox->taxonomies);
+    }
+
     /**
      * @test
      */
-- 
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