Meta 'index_specs' resets

[danaki]

Here a test case I've prepared (for ME-0.7):

import re
import unittest
from mongoengine import Q, connect, Document
from mongoengine.queryset import QuerySet
from mongoengine.fields import *

class Entry(Document):
    meta = {
        'indexes': ['keywords']
    }

    filename = StringField(primary_key=True)
    body = StringField(max_length=140, required=True)
    keywords = ListField(StringField())

    def save(self, *args, **kwargs):
        self.keywords = re.split('\s+', self.body.lower())
        super(self.__class__, self).save(*args, **kwargs)

class TestTest(unittest.TestCase):
    def setUp(self):
        connect(db='mongoenginetest')

        self.kitty = Entry(
            body='Hello Kitty',
            filename='kitty.txt')
        self.kitty.save()

        self.doggy = Entry(
            body='Hello Doggy',
            filename='doggy.txt')
        self.doggy.save()

    def tearDown(self):
        """Clean all connections cached in the _document_registry."""
        Entry.drop_collection()

        QuerySet._reset_already_indexed()
        from mongoengine.base import _document_registry
        for k, doc in _document_registry.items():
            if not hasattr(doc, '_get_collection') or doc._meta.get('abstract', False):
                continue
            col = doc._get_collection()
            col.database.connection.drop_database(col.database.name)

    def test_1(self):
        pass

    def test_2(self):
        pass

When I run it, it gives:

======================================================================
ERROR: test_2 (__main__.TestTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests/test2.py", line 27, in setUp
    self.kitty.save()
  File "tests/test2.py", line 18, in save
    super(self.__class__, self).save(*args, **kwargs)
  File "/home/up/.virtualenvs/flask-mongoengine-test/local/lib/python2.7/site-packages/mongoengine-0.7.0-py2.7.egg/mongoengine/document.py", line 210, in save
    collection = self.__class__.objects._collection
  File "/home/up/.virtualenvs/flask-mongoengine-test/local/lib/python2.7/site-packages/mongoengine-0.7.0-py2.7.egg/mongoengine/queryset.py", line 583, in _collection
    self._ensure_indexes()
  File "/home/up/.virtualenvs/flask-mongoengine-test/local/lib/python2.7/site-packages/mongoengine-0.7.0-py2.7.egg/mongoengine/queryset.py", line 482, in _ensure_indexes
    fields = spec.pop('fields')
KeyError: 'fields'

Using this debug code I've put to mongoengine/queryset.py ~583:

        from pprint import pprint
        import inspect
        print __file__
        print inspect.currentframe().f_back.f_lineno
        pprint(self._document._meta)

I see that items inside meta's index_specs sometimes disappear:

(flask-mongoengine-test)up@lithium ~/flask-mongoengine-test $ python tests/test2.py 
/home/up/.virtualenvs/flask-mongoengine-test/local/lib/python2.7/site-packages/mongoengine-0.7.0-py2.7.egg/mongoengine/queryset.pyc
583
{'abstract': False,
 'allow_inheritance': None,
 'collection': 'entry',
 'delete_rules': None,
 'id_field': 'filename',
 'index_background': False,
 'index_drop_dups': False,
 'index_opts': None,
 'index_specs': [{'fields': [('keywords', 1)]}],
 'indexes': ['keywords'],
 'max_documents': None,
 'max_size': None,
 'ordering': [],
 'unique_indexes': []}
./home/up/.virtualenvs/flask-mongoengine-test/local/lib/python2.7/site-packages/mongoengine-0.7.0-py2.7.egg/mongoengine/queryset.pyc
583
{'abstract': False,
 'allow_inheritance': None,
 'collection': 'entry',
 'delete_rules': None,
 'id_field': 'filename',
 'index_background': False,
 'index_drop_dups': False,
 'index_opts': None,
 'index_specs': [{}],
 'indexes': ['keywords'],
 'max_documents': None,
 'max_size': None,
 'ordering': [],
 'unique_indexes': []}

Tear down code is taken from hmarr#422

[rozza]

Thanks for the test code - not sure what issue you are hitting outside this testcase...

[rozza]

Fixed in the 0.7 branch