app/models/user.rb

@@ -70,6 +70,12 @@ class User < ApplicationRecord
               end
   end
 
+  def ldap_entry
+    return @ldap_entry if defined?(@ldap_entry)
+    ldap = LdapService.new
+    @ldap_entry = ldap.fetch_users(uid: self.cn, ou: self.ou).first
+  end
+
   def address
     "#{self.cn}@#{self.ou}"
   end

app/services/ldap_service.rb

@@ -43,7 +43,7 @@ class LdapService < ApplicationService
     end
 
     attributes = %w{dn cn uid mail admin}
-    filter     = Net::LDAP::Filter.eq("uid", "*")
+    filter     = Net::LDAP::Filter.eq("uid", args[:uid] || "*")
 
     entries = ldap_client.search(base: treebase, filter: filter, attributes: attributes)
     entries.sort_by! { |e| e.cn[0] }