Update registration settings

app/controllers/admin/settings/registrations_controller.rb

@@ -3,7 +3,36 @@ class Admin::Settings::RegistrationsController < Admin::SettingsController
   def index
   end
 
-  def update
+  def create
+    @errors = ActiveModel::Errors.new(Setting.new)
+
+    setting_params.keys.each do |key|
+      next if setting_params[key].nil?
+
+      setting = Setting.new(var: key)
+      setting.value = setting_params[key].strip
+      unless setting.valid?
+        @errors.merge!(setting.errors)
+      end
+    end
+
+    if @errors.any?
+      render :index
+    end
+
+    setting_params.keys.each do |key|
+      Setting.send("#{key}=", setting_params[key].strip) unless setting_params[key].nil?
+    end
+
+    redirect_to admin_settings_registrations_path, flash: {
+      success: "Settings saved"
+    }
+  end
+
+  private
+
+  def setting_params
+    params.require(:setting).permit(:reserved_usernames)
   end
 
 end

app/models/setting.rb

@@ -3,13 +3,7 @@ class Setting < RailsSettings::Base
   cache_prefix { "v1" }
 
   field :reserved_usernames, type: :array, default: %w[
-    account
-    accounts
-    admin
-    donations
-    mail
-    webmaster
-    support
+    account accounts admin donations mail webmaster support
   ]
 
   field :lndhub_enabled, default: (ENV["LNDHUB_API_URL"].present?.to_s || "false"), type: :boolean

app/views/admin/settings/registrations/index.html.erb

@@ -1,9 +1,9 @@
 <%= render HeaderComponent.new(title: "Settings") %>
 
 <%= render MainWithSidenavComponent.new(sidenav_partial: 'shared/admin_sidenav_settings') do %>
-  <section>
-    <h3>Registrations</h3>
-    <%= form_for(Setting.new, url: admin_settings_services_path) do |f| %>
+  <%= form_for(Setting.new, url: admin_settings_registrations_path) do |f| %>
+    <section>
+      <h3>Registrations</h3>
       <% if @errors && @errors.any? %>
         <div>
           <ul>
@@ -14,7 +14,7 @@
         </div>
       <% end %>
 
-      <label>
+      <label class="block">
         <p class="font-bold mb-1">Reserved usernames</p>
         <p class="text-gray-500">
           These usernames cannot be registered as accounts:
@@ -22,10 +22,16 @@
         <%= f.text_area :reserved_usernames,
           value: Setting.reserved_usernames.join("\n"),
           class: "h-44 mb-2" %>
-        <p class="text-sm text-gray-500">
+        <p class="mb-0 text-sm text-gray-500">
           One username per line
         </p>
       </label>
-    <% end %>
-  </section>
+    </section>
+
+    <section>
+      <p class="mb-0 pt-6 border-t border-gray-200">
+        <%= f.submit 'Save', class: "btn-md btn-blue w-full md:w-auto" %>
+      </p>
+    </section>
+  <% end %>
 <% end %>

config/routes.rb

@@ -45,8 +45,8 @@ Rails.application.routes.draw do
     get 'lightning', to: 'lightning#index'
 
     namespace :settings do
-      resources 'registrations', only: ['index', 'update']
-      resources 'services', only: ['index', 'update']
+      resources 'registrations', only: ['index', 'create']
+      resources 'services', only: ['index', 'create']
     end
   end