fix: tags value on select mode (#3576)

* fix: tags value on select mode

* comment

* test

* fix select mode check

* wip

Author: Paul-Bob

app/components/avo/fields/tags_field/edit_component.html.erb

@@ -30,6 +30,6 @@
       disabled: disabled?,
       placeholder: @field.placeholder,
       style: @field.get_html(:style, view: view, element: :input),
-      value: @field.field_value.to_json
+      value: @field.select_mode? ? @field.field_value.first : @field.field_value.to_json
     %>
 <% end %>

lib/avo/fields/tags_field.rb

@@ -30,11 +30,16 @@ def initialize(id, **args, &block)
         end
       end
 
+      def select_mode?
+        @mode&.to_sym == :select
+      end
+
       def field_value
         @field_value ||= if acts_as_taggable_on.present?
           acts_as_taggable_on_values.map { |value| {value:} }.as_json
         else
-          value || []
+          # Wrap the value on Array to ensure select mode compatibility
+          Array(value) || []
         end
       end
 
@@ -53,7 +58,7 @@ def acts_as_taggable_on_values
       def fill_field(record, key, value, params)
         return fill_acts_as_taggable(record, key, value, params) if acts_as_taggable_on.present?
 
-        value = if value.is_a?(String)
+        value = if value.is_a?(String) && !select_mode?
           value.split(delimiters[0])
         else
           value

spec/system/avo/tags_spec.rb

@@ -234,6 +234,42 @@
       Avo::Resources::Course.restore_items_from_backup
     end
   end
+
+  describe "mode: :select" do
+    let!(:projects) { create_list :project, 2 }
+
+    it "on index" do
+      Avo::Resources::Project.with_temporary_items do
+        field :stage, as: :tags, mode: :select
+      end
+
+      visit avo.resources_projects_path
+
+      projects.each do |project|
+        expect(page).to have_text(project.stage)
+      end
+    end
+
+    it "on show" do
+      visit avo.resources_project_path(projects.first)
+
+      expect(page).to have_text(projects.first.stage)
+    end
+
+    it "on edit / update" do
+      visit avo.edit_resources_project_path(projects.first)
+
+      expect(page).to have_text(projects.first.stage)
+
+      click_on "Save"
+
+      wait_for_path_to_be(path: avo.resources_project_path(projects.first))
+
+      expect(page).to have_text(projects.first.stage)
+
+      Avo::Resources::Project.restore_items_from_backup
+    end
+  end
 end
 
 def wait_for_tags_to_load(element, time = Capybara.default_max_wait_time)