feat: add tag formatting helper

app/controllers/cities_controller.rb

@@ -1,4 +1,5 @@
 class CitiesController < ApplicationController
+  include TagHelper
   before_action :authenticate_user!, only: [ :generate_weather_art ]
   before_action :require_admin, only: [ :generate_weather_art ]
 

app/controllers/rss_controller.rb

@@ -1,4 +1,5 @@
 class RssController < ApplicationController
+  include TagHelper
   def feed
     @weather_arts = WeatherArt.order(created_at: :desc).includes(:image_attachment, city: [ :country, :state ]).limit(20)
 
@@ -27,11 +28,11 @@ class RssController < ApplicationController
           date_published: art.created_at.iso8601,
           image: art.image.attached? ? rails_blob_url(art.webp_image.processed) : nil,
           metadata: {
-            country: art.city&.country&.name,
-            city: art.city&.name,
-            state: art.city&.state&.name,
-            region: art.city&.region&.name,
-            subregion: art.city&.subregion&.name,
+            country: format_as_tag(art.city&.country&.name),
+            city: format_as_tag(art.city&.name),
+            state: format_as_tag(art.city&.state&.name),
+            region: format_as_tag(art.city&.region&.name),
+            subregion: format_as_tag(art.city&.subregion&.name),
             description: art.description,
             prompt: art.prompt,
             date: art.weather_date&.strftime("%Y-%m-%d"),

app/controllers/weather_arts_controller.rb

@@ -1,4 +1,5 @@
 class WeatherArtsController < ApplicationController
+  include TagHelper
   def show
     @city = City.friendly.find(params[:city_id])
     @weather_art = @city.weather_arts.friendly.find(params[:slug])

app/helpers/tag_helper.rb

@@ -0,0 +1,14 @@
+module TagHelper
+  def format_as_tag(text)
+    return nil if text.blank?
+
+    # 下划线方式 (选项1)
+    text.strip.gsub(/\s+/, "_")
+
+    # 或者删除空格 (选项2)
+    # text.strip.gsub(/\s+/, '')
+
+    # 或者驼峰式 (选项3)
+    # text.strip.gsub(/\s+(\w)/) { $1.upcase }.gsub(/\s+/, '')
+  end
+end

app/views/cities/show.html.erb

@@ -87,7 +87,7 @@
           <%= render "shared/share_social",
                      title: share_title,
                      description: share_description,
-                     tags: "AIWeather,Art,AIart,Weather,#{@city&.name},#{@city&.country&.name}",
+                     tags: "AIWeather,Art,AIart,Weather,#{format_as_tag(@city&.name)},#{format_as_tag(@city&.country&.name)},#{format_as_tag(@city&.country&.region&.name)},#{format_as_tag(@city&.country&.subregion&.name)}",
                      image: url_for(@city&.latest_weather_art&.webp_image&.processed)
           %>
           </div>

app/views/weather_arts/show.html.erb

@@ -119,7 +119,7 @@
       <%= render "shared/share_social",
                  title: share_title,
                  description: share_description,
-                 tags: "AIWeather,Art,AIart,Weather,#{@weather_art.city&.name},#{@weather_art&.city&.country&.name}",
+                 tags: "AIWeather,Art,AIart,Weather,#{format_as_tag(@weather_art.city&.name)},#{format_as_tag(@weather_art.city&.country&.name)},#{format_as_tag(@weather_art.city&.country&.region&.name)},#{format_as_tag(@weather_art.city&.country&.subregion&.name)}",
                  image: url_for(@weather_art.webp_image.processed)
       %>
     </div>