On 6/30/15 7:21 PM, Jonathon Nelson wrote:
On Tue, Jun 30, 2015 at 6:18 PM, Mike Bayer <mike...@zzzcomputing.com
<mailto:mike...@zzzcomputing.com>> wrote:
how are you getting this Compiler object? the .string element is
created within the constructor.
It was actually as a result of trying to figure out how to use the
code you gave me for the psycopg2 percentile escaping thing:
Well Compiler likes to return the SQL from __str__(), so if the SQL
isn't there, i suppose it could return some generic thing, but then
again __repr__() might be better to call in any case.
from sqlalchemy.ext.compiler import compiles
from sqlalchemy.sql.expression import TextClause
@compiles(TextClause, "postgresql")
def _reverse_escaping(element, compiler, **kw):
# I PUT THE stringification of 'compiler' here
text = compiler.process_text(element, **kw) # should be
.post_process_text?
text = text.replace("%%", "%")
return text
On 6/30/15 6:32 PM, Jonathon Nelson wrote:
When trying to debug something, I tried to acquire the string
representation of a 'compiler' object.
I got this error:
File
"/usr/lib64/python2.7/site-packages/sqlalchemy/sql/compiler.py",
line 218, in __str__
return self.string or ''
AttributeError: 'PGCompiler_psycopg2' object has no attribute
'string'
It would appear that trying to acquire the string representation
of the object (before instantiation) fails.
:-(
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Jon Nelson
Dyn / Senior Software Engineer
p. +1 (603) 263-8029
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