Can not handle data by integer eid #45
Description
The id of the element will change to a unicode string after JSON serialization/deserialization. This causes no way to get the element by integer eid.
Python 2.7.6 (default, Sep 9 2014, 15:04:36)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
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>>> from tinydb import TinyDB
>>> db=TinyDB('/tmp/test.json')
>>> db.insert({'foo':'bar'})
1
>>> db.all()
[{u'foo': u'bar'}]
>>> element = db.all()[0]
>>> element.eid
u'1'
>>> assert db.get(eid=1) is not None
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AssertionError
>>> assert db.get(eid='1') is not None
>>> db.update({'foo':'blah'}, eids=[1])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/wolfg/.virtualenvs/opensource/lib/python2.7/site-packages/tinydb/database.py", line 335, in update
cond, eids)
File "/Users/wolfg/.virtualenvs/opensource/lib/python2.7/site-packages/tinydb/database.py", line 222, in process_elements
func(data, eid)
File "/Users/wolfg/.virtualenvs/opensource/lib/python2.7/site-packages/tinydb/database.py", line 334, in <lambda>
self.process_elements(lambda data, eid: data[eid].update(fields),
KeyError: 1
>>> db.update({'foo':'blah'}, eids=['1'])
>>> db.all()
[{u'foo': u'blah'}]
>>> db.contains(eids=[1])
False
>>> db.contains(eids=['1'])
True