Appearance scaffold

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/controllers/admin/appearances_controller.rb

+class Admin::AppearancesController < Admin::ApplicationController
+  before_filter :set_appearance, except: :create
+
+  def show
+  end
+
+  def create
+    @appearance = Appearance.new(appearance_params)
+
+    if @appearance.save
+      redirect_to admin_appearances_path, notice: 'Appearance was successfully created.'
+    else
+      render action: 'show'
+    end
+  end
+
+  def update
+    if @appearance.update(appearance_params)
+      redirect_to admin_appearances_path, notice: 'Appearance was successfully updated.'
+    else
+      render action: 'show'
+    end
+  end
+
+  private
+
+  # Use callbacks to share common setup or constraints between actions.
+  def set_appearance
+    @appearance = Appearance.first || Appearance.new
+  end
+
+  # Only allow a trusted parameter "white list" through.
+  def appearance_params
+    params.require(:appearance).permit(:title, :description, :logo, :updated_by)
+  end
+end

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

+%h3.page-title
+  Appearance settings
+%p.light
+  You can modify look of sign-in and sign-up pages here
+
+%hr
+
+= form_for @appearance, url: admin_appearances_path, html: { class: 'form-horizontal'} do |f|
+  - if @appearance.errors.any?
+    .alert.alert-danger
+      - @appearance.errors.full_messages.each do |msg|
+        %p= msg
+
+  .form-group
+    = f.label :title, class: 'control-label'
+    .col-sm-10
+      = f.text_field :title, class: "form-control"
+  .form-group
+    = f.label :description, class: 'control-label'
+    .col-sm-10
+      = f.text_area :description, class: "form-control", rows: 10
+      .hint
+        Description parsed with #{link_to "GitLab Flavored Markdown", help_markdown_path, target: '_blank'}.
+  .form-group
+    = f.label :logo, class: 'control-label'
+    .col-sm-10
+      - if @appearance.logo
+        = image_tag @appearance.logo, class: 'appearance-logo-preview'
+      = f.file_field :logo, class: ""
+      .hint
+        Logo size is limited with 1MB
+  .form-actions
+    = f.submit 'Save', class: 'btn btn-save'

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

+= render 'form'