Filters with AND operator not working properly

[pjmartorell]

Hi, I'm trying to translate the following filter in Net::LDAP but it seems is not working as expected:
(&(objectClass=user)(memberof:1.2.840.113556.1.4.1941:=CN=2nd Level,CN=Users,DC=example,DC=dev))

If I pass the filter as string it works and it does return a result:

filter = "(&(objectClass=user)(memberof:1.2.840.113556.1.4.1941:=CN=2nd Level,CN=Users,DC=example,DC=dev))"`

But if I build the filters as the following, it does not return any result even the filter is equivalent:

object_class_filter = Net::LDAP::Filter.eq('objectClass', 'user')
member_of_filter = Net::LDAP::Filter.eq('memberof:1.2.840.113556.1.4.1941:', 'CN=2nd Level,CN=Users,DC=example,DC=dev')
filter = object_class_filter & member_of_filter
filter.to_s => # "(&(objectClass=user)(memberof:1.2.840.113556.1.4.1941:=CN=2nd Level,CN=Users,DC=example,DC=dev))"

Any idea of what is happening? I confirmed it's not related with escaping the spaces of 2nd Level

[pjmartorell]

I found it works when I define the member_of_filter filter as:

member_of_filter = Net::LDAP::Filter.ex('memberof:1.2.840.113556.1.4.1941', 'CN=2nd Level,CN=Users,DC=example,DC=dev')

Hope it helps someone else :)