Automatically re-order tags on save

Fixes #167

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.field.node.post.field_external_link.yml

@@ -0,0 +1,22 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_external_link
+    - node.type.post
+  module:
+    - link
+id: node.post.field_external_link
+field_name: field_external_link
+entity_type: node
+bundle: post
+label: 'External link'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  link_type: 16
+  title: 2
+field_type: link

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.field.node.post.field_sent_to_social_media.yml

@@ -0,0 +1,22 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_sent_to_social_media
+    - node.type.post
+id: node.post.field_sent_to_social_media
+field_name: field_sent_to_social_media
+entity_type: node
+bundle: post
+label: 'Sent to social media'
+description: ''
+required: false
+translatable: false
+default_value:
+  -
+    value: 0
+default_value_callback: ''
+settings:
+  on_label: 'On'
+  off_label: 'Off'
+field_type: boolean

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.field.node.post.field_tags.yml

@@ -0,0 +1,28 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_tags
+    - node.type.post
+    - taxonomy.vocabulary.tags
+id: node.post.field_tags
+field_name: field_tags
+entity_type: node
+bundle: post
+label: Tags
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:taxonomy_term'
+  handler_settings:
+    target_bundles:
+      tags: tags
+    sort:
+      field: name
+      direction: asc
+    auto_create: true
+    auto_create_bundle: ''
+field_type: entity_reference

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.storage.node.field_external_link.yml

@@ -0,0 +1,18 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - link
+    - node
+id: node.field_external_link
+field_name: field_external_link
+entity_type: node
+type: link
+settings: {  }
+module: link
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.storage.node.field_sent_to_social_media.yml

@@ -0,0 +1,17 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - node
+id: node.field_sent_to_social_media
+field_name: field_sent_to_social_media
+entity_type: node
+type: boolean
+settings: {  }
+module: core
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/field.storage.node.field_tags.yml

@@ -0,0 +1,19 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - node
+    - taxonomy
+id: node.field_tags
+field_name: field_tags
+entity_type: node
+type: entity_reference
+settings:
+  target_type: taxonomy_term
+module: core
+locked: false
+cardinality: -1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false

web/modules/custom/opdavies_blog/tests/modules/opdavies_blog_test/config/install/taxonomy.vocabulary.tags.yml

@@ -0,0 +1,7 @@
+langcode: en
+status: true
+dependencies: {  }
+name: Tags
+vid: tags
+description: 'Tags for categorising blog posts.'
+weight: 0

web/modules/custom/opdavies_blog/tests/src/Kernel/ReorderBlogTagsTest.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace Drupal\Tests\opdavies_blog\Kernel;
+
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\node\Entity\Node;
+use Drupal\opdavies_blog\Entity\Node\Post;
+use Drupal\taxonomy\Entity\Vocabulary;
+use Drupal\taxonomy\TermInterface;
+use Drupal\taxonomy\VocabularyInterface;
+use Drupal\Tests\node\Traits\NodeCreationTrait;
+use Drupal\Tests\taxonomy\Traits\TaxonomyTestTrait;
+
+final class ReorderBlogTagsTest extends EntityKernelTestBase {
+
+  use NodeCreationTrait;
+  use TaxonomyTestTrait;
+
+  public static $modules = [
+    // Core.
+    'node',
+    'taxonomy',
+    'link',
+
+    // Contrib.
+    'discoverable_entity_bundle_classes',
+    'hook_event_dispatcher',
+
+    // Custom.
+    'opdavies_blog_test',
+    'opdavies_blog',
+  ];
+
+  /** @test */
+  public function it_reorders_tags_on_blog_posts_to_be_arranged_alphabetically(): void {
+    /** @var VocabularyInterface $vocabulary */
+    $vocabulary = Vocabulary::load('tags');
+
+    $this->createTerm($vocabulary, ['name' => 'Drupal']); // 1
+    $this->createTerm($vocabulary, ['name' => 'PHP']); // 2
+    $this->createTerm($vocabulary, ['name' => 'Symfony']); // 3
+
+    $post = $this->createNode([
+      'field_tags' => [3, 1, 2],
+      'type' => 'post',
+    ]);
+
+    /** @var Post $post */
+    $post = Node::load($post->id());
+
+    $this->assertSame(
+      ['Drupal', 'PHP', 'Symfony'],
+      $post->getTags()
+        ->map(fn(TermInterface $tag) => $tag->label())
+        ->toArray()
+    );
+  }
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installConfig([
+      'filter',
+      'opdavies_blog_test',
+    ]);
+
+    $this->installEntitySchema('taxonomy_vocabulary');
+    $this->installEntitySchema('taxonomy_term');
+  }
+
+}