Hi,
in a working setup I added a ForeignKey to table 'cliente_cliente' as
follows (client_id):
class Project(Base):
__tablename__ = "ticket_project"
__table_args__ = {'useexisting' : True}
id = Column(Integer, primary_key=True)
date_create = Column(Date(),
server_default=text("CURRENT_TIMESTAMP"), nullable=False)
date_last_modify = Column(Date(), onupdate=func.now(),
default=func.now())
status = Column(ForeignKey('ticket_status.id'), nullable=False)
name = Column(String(30), nullable=False)
description = Column(Text, nullable=False)
date_start = Column(Date, default=func.now())
date_end = Column(Date)
client_id = Column(ForeignKey(Cliente.id), nullable=True)
this brakes session.query(Project).... with the message I report below.
Of course I *did* create new field on table in the Postgres database.
Note that if I use autoload on all Tables everything works correctly, so I
tend to think I made a mistake in the definition, but I already spent some
hours w/o any better understanding.
I'll try to reproduce the error on a simpler situation but is not that
easy and I'd like to understand if the error message tells something that
could address me to the solution
thanks in advance
sandro
*:-)
Traceback (most recent call last):
File "/home/misc/src/hg/py/fossati/fossati/job.py", line 86, in jobs_mask
m.reload()
File "../../sqlkit/widgets/mask/mask.py", line 67, in reload
File "/misc/src/hg/py/sqlkit/sqlkit/widgets/common/sqlwidget.py", line 703,
in reload
self.records = query.all()
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/orm/query.py",
line 1007, in all
return list(self)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/orm/query.py",
line 1097, in __iter__
context = self._compile_context()
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/orm/query.py",
line 1569, in _compile_context
from_clause = sql_util.splice_joins(from_clause, eager_join,
eager_join.stop_on)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/util.py",
line 252, in splice_joins
right.onclause = adapter.traverse(right.onclause)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/visitors.py", line
158, in traverse
return replacement_traverse(obj, self.__traverse_options__, replace)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/visitors.py", line
250, in replacement_traverse
obj = clone(obj)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/visitors.py", line
241, in clone
newelem = replace(element)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/visitors.py", line
155, in replace
e = v.replace(elem)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/util.py",
line 473, in replace
return self._corresponding_column(col, True)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/util.py",
line 451, in _corresponding_column
newcol = self.selectable.corresponding_column(col,
require_embedded=require_embedded)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 1834, in corresponding_column
if self.c.contains_column(column):
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/util.py", line
1358, in __get__
obj.__dict__[self.__name__] = result = self.fget(obj)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 1867, in _columns
self._export_columns()
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 1897, in _export_columns
self._populate_column_collection()
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 2594, in _populate_column_collection
for col in self.element.columns:
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/util.py", line
1358, in __get__
obj.__dict__[self.__name__] = result = self.fget(obj)
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 1867, in _columns
self._export_columns()
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 1897, in _export_columns
self._populate_column_collection()
File
"/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/sql/expression.py",
line 3428, in _populate_column_collection
c._make_proxy(self, name=self.use_labels and c._label or None)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/schema.py",
line 743, in _make_proxy
[c._init_items(f) for f in fk]
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/schema.py",
line 54, in _init_items
item._set_parent(self)
File "/home/misc/src/sqlalchemy/sqlalchemy-svn/lib/sqlalchemy/schema.py",
line 929, in _set_parent
self.parent.table.foreign_keys.remove(fk)
KeyError: ForeignKey(u'cliente_cliente.id')
--
Sandro Dentella *:-)
http://sqlkit.argolinux.org SQLkit home page - PyGTK/python/sqlalchemy
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