From ad03410a65cc88669093c4bbb93d21d4cd532ca5 Mon Sep 17 00:00:00 2001
From: Trevor Vallender <trevor@tsvallender.co.uk>
Date: Thu, 19 Oct 2023 18:46:41 +0100
Subject: [PATCH] Method to add tags to microposts

---
 app/models/micropost.rb       | 6 ++++++
 test/models/micropost_test.rb | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/app/models/micropost.rb b/app/models/micropost.rb
index e783493..4d97031 100644
--- a/app/models/micropost.rb
+++ b/app/models/micropost.rb
@@ -10,4 +10,10 @@ class Micropost < ApplicationRecord
 
   has_many :microposts_tags
   has_many :tags, through: :microposts_tags
+
+  def add_tags(*tag_names)
+    tag_names.each do |tag|
+      tags << Tag.find_or_create_by(name: tag)
+    end
+  end
 end
diff --git a/test/models/micropost_test.rb b/test/models/micropost_test.rb
index 2fd9540..8235133 100644
--- a/test/models/micropost_test.rb
+++ b/test/models/micropost_test.rb
@@ -17,4 +17,11 @@ class MicropostTest < ActiveSupport::TestCase
     @micropost.content = nil
     assert_not @micropost.valid?
   end
+
+  test "can add tags" do
+    assert_empty @micropost.tags
+    assert_difference "@micropost.tags.count", +3 do
+      @micropost.add_tags("foo", "bar", "baz")
+    end
+  end
 end