change styling towards design rj

app/models/section.rb

@@ -14,6 +14,14 @@ class Section
 
   validates :supplier_id, presence: true
 
+  # Probably faster to directly retreive the document and return nil
+  # if the supplier does not match
+  def self.find_by_supplier_and_id(supplier, id)
+    section = find(id)
+    return nil unless section.supplier_id == supplier.id
+    section
+  end
+
   def width
     self.path.last.try(:first).to_f - self.path.first.try(:first).to_f
   end