Question

After using this code to get my link to show me 3 database entrys as link in table i get undefined method `+’ for nil:NilClass error this error for companies without these fields.

<td><%= link_to  @company.office_adress_street + ", " + @company.office_adress_city + ", " + @company.office_adress_postcode, "http://maps.google.com/?q=" + @company.office_adress_street + ", " + @company.office_adress_city + ", " + @company.office_adress_postcode, :target => '_blank' %></td>

Answer 1

You should check that each of those calls to attributes of @company.XXX do not return nil, and better yet string concatenation should be structured like:

"#{link_to(@company.office_adress_street)}, #{@company.office_adress_city}, #{@company.office_adress_postcode}"