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jsondb's Issues
Does this database support update records?
hi,this is great project. it easy to use ,but i cant find a way to update my records。i used ('[]', filepath) to create a db. when i want to update a records of [] , i get in trouble.someone can help me
Recursive remove can throw exception
When you remove nodes recursively sometimes parent nodes are removed before children causing an exception to be thrown.
`.keys()` sometimes doesn't work after saving and reloading
Repro
ipython
Python 2.7.12 (default, Jun 29 2016, 08:18:26)
Type "copyright", "credits" or "license" for more information.
IPython 2.4.1 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
[TerminalIPythonApp] WARNING | File not found: '/home/tom/.pythonrc.py'
In [1]: import jsondb
In [2]: jsondb.create({}, url='/tmp/test.db')
Out[2]: <jsondb.JsonDB at 0x7f92c07bf1d0>
In [3]: d = _
In [4]: d.keys()
Out[4]: []
In [5]: d['a'] = 1
In [6]: d.keys()
Out[6]: ['a']
In [7]: d.close()
In [8]: d = jsondb.load(url='/tmp/test.db')
In [9]:
In [9]: d.keys()
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
<ipython-input-9-8bc560538296> in <module>()
----> 1 d.keys()
/home/tom/.local/lib/python2.7/site-packages/jsondb/core.pyc in __getattr__(self, name)
90
91 def __getattr__(self, name):
---> 92 cls = self.get_datatype()
93 try:
94 attr = getattr(cls, name)
/home/tom/.local/lib/python2.7/site-packages/jsondb/core.pyc in get_datatype(self)
282
283 def get_datatype(self):
--> 284 return get_datatype_class(self.datatype)
285
286 def data(self, update=False):
/home/tom/.local/lib/python2.7/site-packages/jsondb/datatypes.pyc in get_datatype_class(_type)
47 if _type == NIL:
48 return None
---> 49 cls = DATA_INITIAL[_type].__class__
50 return cls
51
KeyError: None
In [10]: d.items()
Out[10]: [('a', 1)]
Add redis support
Should allow using redis as the backend.
README describes `.save` method but no such method exists
Repro:
ipython
Python 2.7.12 (default, Jun 29 2016, 08:18:26)
Type "copyright", "credits" or "license" for more information.
IPython 2.4.1 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
[TerminalIPythonApp] WARNING | File not found: '/home/tom/.pythonrc.py'
In [1]: import jsondb
In [2]: jsondb.create({}, url='/tmp/test.db')
Out[2]: <jsondb.JsonDB at 0x7f8679400290>
In [3]: d = _
In [4]: d.save()
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-4-7e84cd160ba3> in <module>()
----> 1 d.save()
/home/tom/.local/lib/python2.7/site-packages/jsondb/core.pyc in __getattr__(self, name)
92 cls = self.get_datatype()
93 try:
---> 94 attr = getattr(cls, name)
95 except:
96 raise
AttributeError: type object 'dict' has no attribute 'save'
In [5]: print jsondb.version
0.1.2Support negative step in sequence slicing
The current implementation of slicing does not support negative step.
Given the following data
db = jsondb.create({
'name' : 'foo',
'items': [
{'id' : 0, 'name' : 'a'},
{'id' : 1, 'name' : 'b'},
{'id' : 2, 'name' : 'c'},
]
})
The output of print(db.query('$.items[::-1].name'))
should be c b a
instead of a b c
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