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fixed embedded null item_frequencies

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This commit is contained in:
Wilson Júnior 2011-09-20 08:56:30 -03:00
parent f7fbb3d2f6
commit a9cacd2e06
2 changed files with 48 additions and 3 deletions
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21
mongoengine/queryset.py
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@ -1526,7 +1526,12 @@ class QuerySet(object):
function() {
path = '{{~%(field)s}}'.split('.');
field = this;
for (p in path) { field = field[path[p]]; }
for (p in path) {
if (field)
field = field[path[p]];
else
break;
}
if (field && field.constructor == Array) {
field.forEach(function(item) {
emit(item, 1);
@ -1572,7 +1577,12 @@ class QuerySet(object):
var total = 0.0;
db[collection].find(query).forEach(function(doc) {
field = doc;
for (p in path) { field = field[path[p]]; }
for (p in path) {
if (field)
field = field[path[p]];
else
break;
}
if (field && field.constructor == Array) {
total += field.length;
} else {
@ -1588,7 +1598,12 @@ class QuerySet(object):
}
db[collection].find(query).forEach(function(doc) {
field = doc;
for (p in path) { field = field[path[p]]; }
for (p in path) {
if (field)
field = field[path[p]];
else
break;
}
if (field && field.constructor == Array) {
field.forEach(function(item) {
frequencies[item] = inc + (isNaN(frequencies[item]) ? 0: frequencies[item]);

30
tests/queryset.py
View File

@ -1840,6 +1840,36 @@ class QuerySetTest(unittest.TestCase):
freq = Person.objects.item_frequencies('city', normalize=True, map_reduce=True)
self.assertEquals(freq, {'CRB': 0.5, None: 0.5})
def test_item_frequencies_with_null_embedded(self):
class Data(EmbeddedDocument):
name = StringField()
class Extra(EmbeddedDocument):
tag = StringField()
class Person(Document):
data = EmbeddedDocumentField(Data, required=True)
extra = EmbeddedDocumentField(Extra)
Person.drop_collection()
p = Person()
p.data = Data(name="Wilson Jr")
p.save()
p = Person()
p.data = Data(name="Wesley")
p.extra = Extra(tag="friend")
p.save()
ot = Person.objects.item_frequencies('extra.tag', map_reduce=False)
self.assertEquals(ot, {None: 1.0, u'friend': 1.0})
ot = Person.objects.item_frequencies('extra.tag', map_reduce=True)
self.assertEquals(ot, {None: 1.0, u'friend': 1.0})
def test_average(self):
"""Ensure that field can be averaged correctly.
"""