equal
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inserted
replaced
1 from copy import deepcopy |
|
2 from datetime import datetime |
1 from datetime import datetime |
3 |
2 |
4 from django.utils import tree |
3 from django.utils import tree |
|
4 from django.utils.copycompat import deepcopy |
5 |
5 |
6 class ExpressionNode(tree.Node): |
6 class ExpressionNode(tree.Node): |
7 """ |
7 """ |
8 Base class for all query expressions. |
8 Base class for all query expressions. |
9 """ |
9 """ |
39 ################### |
39 ################### |
40 |
40 |
41 def prepare(self, evaluator, query, allow_joins): |
41 def prepare(self, evaluator, query, allow_joins): |
42 return evaluator.prepare_node(self, query, allow_joins) |
42 return evaluator.prepare_node(self, query, allow_joins) |
43 |
43 |
44 def evaluate(self, evaluator, qn): |
44 def evaluate(self, evaluator, qn, connection): |
45 return evaluator.evaluate_node(self, qn) |
45 return evaluator.evaluate_node(self, qn, connection) |
46 |
46 |
47 ############# |
47 ############# |
48 # OPERATORS # |
48 # OPERATORS # |
49 ############# |
49 ############# |
50 |
50 |
107 return obj |
107 return obj |
108 |
108 |
109 def prepare(self, evaluator, query, allow_joins): |
109 def prepare(self, evaluator, query, allow_joins): |
110 return evaluator.prepare_leaf(self, query, allow_joins) |
110 return evaluator.prepare_leaf(self, query, allow_joins) |
111 |
111 |
112 def evaluate(self, evaluator, qn): |
112 def evaluate(self, evaluator, qn, connection): |
113 return evaluator.evaluate_leaf(self, qn) |
113 return evaluator.evaluate_leaf(self, qn, connection) |