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comparison env/lib/python3.7/site-packages/boto/sdb/db/query.py @ 5:9b1c78e6ba9c draft default tip

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"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
author shellac
date Mon, 01 Jun 2020 08:59:25 -0400
parents 79f47841a781
children
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4:79f47841a781 5:9b1c78e6ba9c
1 from boto.compat import six
2 # Copyright (c) 2006,2007,2008 Mitch Garnaat http://garnaat.org/
3 #
4 # Permission is hereby granted, free of charge, to any person obtaining a
5 # copy of this software and associated documentation files (the
6 # "Software"), to deal in the Software without restriction, including
7 # without limitation the rights to use, copy, modify, merge, publish, dis-
8 # tribute, sublicense, and/or sell copies of the Software, and to permit
9 # persons to whom the Software is furnished to do so, subject to the fol-
10 # lowing conditions:
11 #
12 # The above copyright notice and this permission notice shall be included
13 # in all copies or substantial portions of the Software.
14 #
15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
17 # ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
18 # SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 # IN THE SOFTWARE.
22
23 class Query(object):
24 __local_iter__ = None
25 def __init__(self, model_class, limit=None, next_token=None, manager=None):
26 self.model_class = model_class
27 self.limit = limit
28 self.offset = 0
29 if manager:
30 self.manager = manager
31 else:
32 self.manager = self.model_class._manager
33 self.filters = []
34 self.select = None
35 self.sort_by = None
36 self.rs = None
37 self.next_token = next_token
38
39 def __iter__(self):
40 return iter(self.manager.query(self))
41
42 def next(self):
43 if self.__local_iter__ is None:
44 self.__local_iter__ = self.__iter__()
45 return next(self.__local_iter__)
46
47 def filter(self, property_operator, value):
48 self.filters.append((property_operator, value))
49 return self
50
51 def fetch(self, limit, offset=0):
52 """Not currently fully supported, but we can use this
53 to allow them to set a limit in a chainable method"""
54 self.limit = limit
55 self.offset = offset
56 return self
57
58 def count(self, quick=True):
59 return self.manager.count(self.model_class, self.filters, quick, self.sort_by, self.select)
60
61 def get_query(self):
62 return self.manager._build_filter_part(self.model_class, self.filters, self.sort_by, self.select)
63
64 def order(self, key):
65 self.sort_by = key
66 return self
67
68 def to_xml(self, doc=None):
69 if not doc:
70 xmlmanager = self.model_class.get_xmlmanager()
71 doc = xmlmanager.new_doc()
72 for obj in self:
73 obj.to_xml(doc)
74 return doc
75
76 def get_next_token(self):
77 if self.rs:
78 return self.rs.next_token
79 if self._next_token:
80 return self._next_token
81 return None
82
83 def set_next_token(self, token):
84 self._next_token = token
85
86 next_token = property(get_next_token, set_next_token)