Search on non-text column in flask-admin

问题

I have a sqlalchemy model:

class Multicast(db.Model):
    __tablename__ = "multicast"
    id = Column(Integer, primary_key=True)
    addr = Column(Inet)
    name = Column(Unicode(65))

I need to make search by "addr" field. I could not do it in this way:

class MulticastView(ModelView):
    column_searchable_list = ('name', 'addr',)
    column_filters = ('name', )
    model = Multicast

Because i had an Exception: Can only search on text columns. Failed to setup search for "addr". How can i make this search?

回答1:

I found some solution. I overrided get_list method in MulticastView. I copied all source code from ModelView and added a line in search criteria code:

filter_stmt.append(func.text(Multicast.addr).like(stmt))

It works!

回答2:

Another option here is to modify the allowed_search_types for the MulticastView class:

class MulticastView(ModelView):
    allowed_search_types = (
        mongoengine.StringField,
        mongoengine.URLField,
        mongoengine.EmailField,
        mongoengine.Inet
    )
    ...

来源：https://stackoverflow.com/questions/26009081/search-on-non-text-column-in-flask-admin