Added one more endpoint to attach tempfile and get logo (#6407)

app/controllers/api/v1/accounts/articles_controller.rb

@@ -1,7 +1,7 @@
 class Api::V1::Accounts::ArticlesController < Api::V1::Accounts::BaseController
   before_action :portal
   before_action :check_authorization
-  before_action :fetch_article, except: [:index, :create]
+  before_action :fetch_article, except: [:index, :create, :attach_file]
   before_action :set_current_page, only: [:index]
 
   def index
@@ -23,7 +23,8 @@ class Api::V1::Accounts::ArticlesController < Api::V1::Accounts::BaseController
   def show; end
 
   def update
-    @article.update!(article_params)
+    @article.update!(article_params) if params[:article].present?
+    render json: { error: @article.errors.messages }, status: :unprocessable_entity and return unless @article.valid?
   end
 
   def destroy
@@ -31,6 +32,17 @@ class Api::V1::Accounts::ArticlesController < Api::V1::Accounts::BaseController
     head :ok
   end
 
+  def attach_file
+    file_blob = ActiveStorage::Blob.create_and_upload!(
+      key: nil,
+      io: params[:background_image].tempfile,
+      filename: params[:background_image].original_filename,
+      content_type: params[:background_image].content_type
+    )
+    file_blob.save!
+    render json: { file_url: url_for(file_blob) }
+  end
+
   private
 
   def fetch_article