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View Code? Open in Web Editor NEWdb.query('$.items[?(@.id = 1)].name')
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jsondb's Issues
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.
Support 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
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
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
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