[Sqlalchemy-tickets] Issue #3115: mapper has_property method to do return True when hybrid_property (zzzeek/sqlalchemy)

[delegans <iss...@bi...>]

New issue 3115: mapper has_property method to do return True when hybrid_property
https://bitbucket.org/zzzeek/sqlalchemy/issue/3115/mapper-has_property-method-to-do-return

delegans:

When I try to get property from mapper by name I can't do it when hybrid_property name specified.

```
#!python

import datetime
from sqlalchemy import create_engine, MetaData
from sqlalchemy import Column, String, DateTime, Integer
from sqlalchemy.ext.declarative import declarative_base, declared_attr
from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy.orm import sessionmaker    

metadata = MetaData()
Base = declarative_base(metadata=metadata)    

class Duration(Base):
    __tablename__ = "duration"

    pk = Column(Integer, primary_key=True)
    name = Column(String, nullable=False)

    @hybrid_property
    def duration(obj):
        return obj.name    

engine = create_engine('sqlite:///:memory:', echo=True)
metadata.create_all(engine)
Session = sessionmaker(bind=engine)
session = Session()

duration = Duration(name="Test")
session.add(duration)
session.commit()    

print duration.__mapper__.has_property('duration') # Returns False, needs True
```
As you can see the has_property('duration') does not see the hybrid_property duration and returns False instead True.

Is it a bug?

Source: http://stackoverflow.com/questions/24579185/sqlalchemy-how-mapper-has-property-method-to-do-return-true-when-hybrid-propert