small issue with a strange view

[lenz]

hi,

i do stuff the clumsy way and overlook something completely obvious.
my issue is that i try to map some very ugly API responses into a much
saner data structure in a view. i did that in the first run simply
this way:

function(doc) {
  emit(doc.domain,
    {domain: doc.domain,
     auth: doc.PROPERTY.AUTH[0],
     created: doc.PROPERTY.CREATEDDATE[0],
     expire: doc.PROPERTY.EXPIRATIONDATE[0],
     ns: doc.PROPERTY.NAMESERVER,
     status: doc.PROPERTY.STATUS,
     renew: doc.PROPERTY.RENEWALMODE[0],
     owner: {
       firstname: doc.PROPERTY.OWNERCONTACT.PROPERTY.FIRSTNAME[0],
       lastname: doc.PROPERTY.OWNERCONTACT.PROPERTY.LASTNAME[0],
       company: doc.PROPERTY.OWNERCONTACT.PROPERTY.ORGANIZATION[0],
       street: doc.PROPERTY.OWNERCONTACT.PROPERTY.STREET[0],
     .....

then reality caught me and i noticed that some of the values i try to
assign are actually not always there so i came up with this:

      .......

       firstname: doc.PROPERTY.OWNERCONTACT.PROPERTY.FIRSTNAME[0] || '',
       lastname: doc.PROPERTY.OWNERCONTACT.PROPERTY.LASTNAME[0] ||
doc.PROPERTY.OWNERCONTACT.PROPERTY.NAME[0],
       company: doc.PROPERTY.OWNERCONTACT.PROPERTY.ORGANIZATION[0] || '',
       street: doc.PROPERTY.OWNERCONTACT.PROPERTY.STREET[0] || '',
      .......

but obviously i get still errors as for example the
doc.PROPERTY.OWNERCONTACT.PROPERTY.FIRSTNAME key is not defined at all
and so the array i try to get the first element of is undefined and
throws an error.

any sane way i can do it nicely in the emit function or do i have to
write a proper parser :-)

cheers
lenz

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