haystack multiple field search

Question

Hi i m using haystack with a woosh as search engine:

my model looks as follows

class Person(models.Model):
    personid = models.IntegerField(primary_key = True, db_column = 'PID')  
    firstname = models.CharField(max_length = 50, db_column = 'FIRSTNAME')  
    lastname = models.CharField(max_length = 50, db_column = 'LASTNAME') 
    class Meta:
        db_table = '"TEST"."PERSON"'
        managed = False


class TDoc(models.Model):
    tdocid = models.IntegerField(primary_key = True, db_column = 'TDOCID')  
    person = models.ForeignKey(Person, db_column = 'PID')
    content = models.TextField(db_column = 'CONTENT', blank = True) 
    filepath = models.TextField(db_column = 'FILEPATH', blank = True) 
    class Meta:
        db_table = '"TEST"."TDOC"'
        managed = False

The search_index.py is as follows:

class TDocIndex(SearchIndex):

    content = CharField(model_attr = 'content', document = True)
    filepaht = CharField(model_attr = 'filepath')
    person = CharField(model_attr = 'person')

    def get_queryset(self):
        return TDoc.objects.all()

    def prepare_person(self, obj):
        # Store a list of id's for filtering
        return obj.person.lastname

site.register(TDoc, TDocIndex)

My problem is i would like to do multiple filed searches like

content:xxx AND person:SMITH

On haystack it search all of them at once i can't do specific field search. I suspected that my index is corrupt but:

ix = open_dir("/testindex")

searcher = ix.searcher()

mparser = MultifieldParser(["content", "filepath", "person"], schema = ix.schema)
myquery = mparser.parse(content:xxx AND person:SMITH')
results = searcher.search(myquery)
for result in results:
    print result

but it works and return's the correct value. I m using the standard haystack SearchView,search.html from the tutorial

(r'^search/', include('haystack.urls')),

Thnks for your help