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Removed obsolete Lookup hook to prepare rhs expressions.

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After 3a505c70e7, all _prepare() methods
return self.
This commit is contained in:
Simon Charette 2019-03-06 02:05:32 -05:00 • committed by Tim Graham
parent 3a505c70e7
commit 5935a9aead
4 changed files with 5 additions and 21 deletions
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10
django/db/models/expressions.py
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@ -245,10 +245,6 @@ class BaseExpression:
])
return c
def _prepare(self, field):
"""Hook used by Lookup.get_prep_lookup() to do custom preparation."""
return self
@property
def field(self):
return self.output_field
@ -537,9 +533,6 @@ class ResolvedOuterRef(F):
'only be used in a subquery.'
)
def _prepare(self, output_field=None):
return self
def relabeled_clone(self, relabels):
return self
@ -551,9 +544,6 @@ class OuterRef(F):
return self.name
return ResolvedOuterRef(self.name)
def _prepare(self, output_field=None):
return self
class Func(SQLiteNumericMixin, Expression):
"""An SQL function call."""