[Flask] Macro expansion/evaluation?
Can Hoşgör
canhosgor at gmail.com
Wed Oct 14 21:10:48 CEST 2015
See getattr and/or self.__dict__
14 Ekim 2015 Çarşamba tarihinde, Jim Icenhower via Flask <flask at python.org>
yazdı:
> Hi All,
> I'm sure this is a newbie question but I haven't been able to find the
> answer by searching. Probably because I don't know what this technique is
> called in Python.
> I have created a class which extends the Flask-Appbuilder Model class
> which extends a SQLAlchemy class. I'm trying to validate that all required
> fields are populated. I have created this function that returns all the
> mapped attributes of the class:
>
> def get_obj_mapped_columns(dbObj):
> mapper = inspect(dbObj)
> return mapper.mapper.columns
>
> This is my main class:
>
> class Event(Model):
> EventID = Column(Integer, primary_key=True)
> EventKey = Column(String(30), unique=True, nullable=False)
> Name = Column(String(100), nullable=False)
> Description = Column(Text(1000), nullable=False)
> BeginDate = Column(Date)
> EndDate = Column(Date)
> RegBeginDate = Column(Date)
> RegEndDate = Column(Date)
> Location = Column(String(200))
> Address1 = Column(String(200))
> Address2 = Column(String(200))
> City = Column(String(20))
> State = Column(String(2))
> Zip = Column(String(10))
> URL = Column(String(100))
> Email = Column(String(100))
> Phone = Column(String(20))
>
> Which contains the following method:
>
> def isValid(self):
> columns = get_obj_mapped_columns(self)
> for column in columns:
> if (NOT column.nullable):
> print column.name
> print self.*<column.name <http://column.name>>*
>
>
> I would like to substitute the value in <column.name> in such a way that
> it is evaluated as the field name of the Event object.
>
> Any guidance would be greatly appreciated!
>
> Thanks,
> Jim
>
> Jim
>
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