Admins can delete the attestation template's logo

app/controllers/admin/attestation_templates_controller.rb

@@ -54,6 +54,16 @@ class Admin::AttestationTemplatesController < AdminController
     render 'admin/attestation_templates/show', formats: [:pdf]
   end
 
+  def delete_logo
+    attestation_template = @procedure.attestation_template
+
+    attestation_template.remove_logo!
+    attestation_template.save
+
+    flash.notice = 'le logo a bien été supprimée'
+    redirect_to edit_admin_procedure_attestation_template_path(@procedure)
+  end
+
   def delete_signature
     attestation_template = @procedure.attestation_template
 

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

@@ -17,6 +17,8 @@
         = image_tag @attestation_template.logo.url, class: 'thumbnail'
       .form-group
         = f.label :logo, "Logo de l'attestation"
+        - if @attestation_template.logo.present?
+          = link_to 'Supprimer le logo', admin_procedure_attestation_template_logo_path(@procedure), method: :delete
         = f.file_field :logo, accept: 'image/png, image/jpg, image/jpeg'
         %p.help-block
           Fichier accepté : JPG / JPEG / PNG

config/routes.rb

@@ -232,6 +232,7 @@ Rails.application.routes.draw do
       post 'attestation_template/preview' => 'attestation_templates#preview'
       patch 'attestation_template/preview' => 'attestation_templates#preview'
 
+      delete 'attestation_template/logo' => 'attestation_templates#delete_logo'
       delete 'attestation_template/signature' => 'attestation_templates#delete_signature'
     end