Init ApplicationSettings resource with defaults from config file

app/controllers/admin/application_settings_controller.rb

+class Admin::ApplicationSettingsController < Admin::ApplicationController
+  before_filter :set_application_setting
+
+  def show
+  end
+
+  def edit
+  end
+
+  def update
+    @application_setting.update_attributes(application_setting_params)
+
+    redirect_to admin_application_settings_path
+  end
+
+  private
+
+  def set_application_setting
+    @application_setting = ApplicationSetting.last
+  end
+
+  def application_setting_params
+    params.require(:application_setting).permit(
+      :default_projects_limit,
+      :signup_enabled,
+      :signin_enabled,
+      :gravatar_enabled,
+      :sign_in_text,
+    )
+  end
+end

app/controllers/registrations_controller.rb

@@ -26,7 +26,9 @@ class RegistrationsController < Devise::RegistrationsController
   private
   def signup_enabled?
-    redirect_to new_user_session_path unless Gitlab.config.gitlab.signup_enabled
+    unless ApplicationSetting.current.signup_enabled
+      redirect_to new_user_session_path
+    end
   end
   def sign_up_params

app/helpers/application_helper.rb

@@ -310,4 +310,12 @@ module ApplicationHelper
     request.env['rack.session']['user_return_to'] ==
       '/'
   end
+
+  def signup_enabled?
+    ApplicationSetting.current.signup_enabled
+  end
+
+  def signin_enabled?
+    ApplicationSetting.current.signin_enabled
+  end
 end

app/helpers/application_settings_helper.rb

+module ApplicationSettingsHelper
+end

app/models/application_setting.rb

+class ApplicationSetting < ActiveRecord::Base
+  def self.current
+    ApplicationSetting.last
+  end
+end

app/services/gravatar_service.rb

 class GravatarService
   def execute(email, size = nil)
-    if gravatar_config.enabled && email.present?
+    if ApplicationSetting.current.gravatar_enabled && email.present?
       size = 40 if size.nil? || size <= 0
       sprintf gravatar_url,

app/views/admin/application_settings/_form.html.haml

+= form_for @application_setting, url: admin_application_settings_path, html: { class: 'form-horizontal fieldset-form' } do |f|
+  - if @application_setting.errors.any?
+    #error_explanation
+      .alert.alert-danger
+        - @application_setting.errors.full_messages.each do |msg|
+          %p= msg
+
+  .form-group
+    = f.label :default_projects_limit, class: 'control-label'
+    .col-sm-10
+      = f.number_field :default_projects_limit, class: 'form-control'
+  .form-group
+    = f.label :signup_enabled, class: 'control-label'
+    .col-sm-10
+      = f.check_box :signup_enabled, class: 'checkbox'
+  .form-group
+    = f.label :signin_enabled, class: 'control-label'
+    .col-sm-10
+      = f.check_box :signin_enabled, class: 'checkbox'
+  .form-group
+    = f.label :gravatar_enabled, class: 'control-label'
+    .col-sm-10
+      = f.check_box :gravatar_enabled, class: 'checkbox'
+  .form-group
+    = f.label :sign_in_text, class: 'control-label'
+    .col-sm-10
+      = f.text_area :sign_in_text, class: 'form-control'
+  .form-actions
+    = f.submit 'Save', class: 'btn btn-primary'

app/views/admin/application_settings/edit.html.haml

+%h1 Editing application_setting
+
+= render 'form'
+
+= link_to 'Back', admin_application_settings_path

app/views/admin/application_settings/show.html.haml

+%table.table
+  %tr
+    %td Default projects limit:
+    %td= @application_setting.default_projects_limit
+  %tr
+    %td Signup enabled:
+    %td= @application_setting.signup_enabled
+  %tr
+    %td Signin enabled:
+    %td= @application_setting.signin_enabled
+  %tr
+    %td Gravatar enabled:
+    %td= @application_setting.gravatar_enabled
+  %tr
+    %td Sign in text:
+    %td= @application_setting.sign_in_text
+
+= link_to 'Edit', edit_admin_application_settings_path

app/views/devise/sessions/new.html.haml

@@ -5,7 +5,7 @@
     .prepend-top-20
       = render 'devise/shared/oauth_box'
-  - if gitlab_config.signup_enabled
+  - if signup_enabled?
     .prepend-top-20
       = render 'devise/shared/signup_box'

app/views/devise/shared/_signin_box.html.haml

@@ -7,18 +7,18 @@
         - @ldap_servers.each_with_index do |server, i|
           %li{class: (:active if i.zero?)}
             = link_to server['label'], "#tab-#{server['provider_name']}", 'data-toggle' => 'tab'
-        - if gitlab_config.signin_enabled
+        - if signin_enabled?
           %li
             = link_to 'Standard', '#tab-signin', 'data-toggle' => 'tab'
       .tab-content
         - @ldap_servers.each_with_index do |server, i|
           %div.tab-pane{id: "tab-#{server['provider_name']}", class: (:active if i.zero?)}
             = render 'devise/sessions/new_ldap', provider: server['provider_name']
-        - if gitlab_config.signin_enabled
+        - if signin_enabled?
           %div#tab-signin.tab-pane
             = render 'devise/sessions/new_base'
-    - elsif gitlab_config.signin_enabled
+    - elsif signin_enabled?
       = render 'devise/sessions/new_base'
     - else
       %div

config/initializers/8_application_settings.rb

+begin
+  unless ApplicationSetting.any?
+    ApplicationSetting.create(
+      default_projects_limit: Settings.gitlab['default_projects_limit'],
+      signup_enabled: Settings.gitlab['signup_enabled'],
+      signin_enabled: Settings.gitlab['signin_enabled'],
+      gravatar_enabled: Settings.gravatar['enabled'],
+      sign_in_text: Settings.extra['sign_in_text'],
+    )
+  end
+rescue
+end

config/routes.rb

@@ -109,6 +109,8 @@ Gitlab::Application.routes.draw do
       end
     end
+    resource :application_settings
+
     root to: "dashboard#index"
   end

db/migrate/20150108073740_create_application_settings.rb

+class CreateApplicationSettings < ActiveRecord::Migration
+  def change
+    create_table :application_settings do |t|
+      t.integer :default_projects_limit
+      t.boolean :signup_enabled
+      t.boolean :signin_enabled
+      t.boolean :gravatar_enabled
+      t.text :sign_in_text
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,11 +11,21 @@
 #
 # It's strongly recommended that you check this file into your version control system.
-ActiveRecord::Schema.define(version: 20141226080412) do
+ActiveRecord::Schema.define(version: 20150108073740) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
+  create_table "application_settings", force: true do |t|
+    t.integer  "default_projects_limit"
+    t.boolean  "signup_enabled"
+    t.boolean  "signin_enabled"
+    t.boolean  "gravatar_enabled"
+    t.text     "sign_in_text"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "broadcast_messages", force: true do |t|
     t.text     "message",    null: false
     t.datetime "starts_at"