page redirect with redirect capturing

app/controllers/merged/pages_controller.rb

@@ -10,6 +10,13 @@ module Merged
 
     end
 
+    def update
+      @page.add_redirect
+      @page.name = params[:name]
+      @page.save
+      redirect_to page_path(@page) , notice: "Page renamed"
+    end
+
     def create
       name = params[:name]
       message = Page.check_name(name)

app/models/merged/page.rb

@@ -1,10 +1,16 @@
 module Merged
   class Page < ViewBase
 
-    fields :name , :type , :options
+    fields :name , :type , :options, :redirects
 
     alias :template :type
 
+    def add_redirect
+      olds = self.redirects.to_s.split(" ")
+      olds << self.name unless olds.include?(self.name)
+      self.redirects = olds.join(" ")
+    end
+
     def sections
       Section.where(page_id: id).order(index: :asc)
     end
@@ -55,6 +61,9 @@ module Merged
     end
 
     def save
+      olds = self.redirects.to_s.split(" ")
+      olds.delete( self.name.to_s )
+      self.redirects = olds.join(" ")
       updated_at = Time.now
       super
       Page.save_all

app/views/merged/pages/show.haml

@@ -23,13 +23,16 @@
         %h4.text-lg.font-bold Name
         = text_field_tag( :name , @page.name, class: "w-full rounded-lg border-gray-200 p-4 pr-12 text-sm shadow-sm")
       .mt-4= submit_button("Update")
-      (renaming not implemented)
+      -unless @page.redirects.blank?
+        .mt-4
+          Page redirects from
+          = @page.redirects
 
   .basis-80.grow
     %h3.mt-4.text-lg.font-bold Options
     = form_tag( page_url(@page.id) , {method: :patch  , class: "mx-auto mt-8 mb-0 max-w space-y-4" } ) do
       - @page.option_definitions.each do |option|
-        =render "option_form_#{option.type}" , section: @page , option: option
+        =render "/merged/sections/option_form_#{option.type}" , section: @page , option: option
       -if @page.option_definitions.empty?
         %p No options
       -else