These two lines
> db.t2_person.exposes=['name','email','password']
> db.t2_person.displays=['name','email','password']
mean nothing in web2py, they just define two new attributes of the
t2_person table.
these two attributes, by convention, are used by T2.
The first says that only ['name','email','password'] fields should be
displayed in create and update forms. The second says that only
['name','email','password'] should be displayed by
t2.display(db.t2_person).
The first is used as in
form=SQLFORM(db.table,fields=db.table.exposes)
On Nov 2, 7:09 pm, Oscar <[EMAIL PROTECTED]> wrote:
> So,
>
> Massimo,
>
> what does mean these two lines? Sorry I'm a very new with programming
> at python.
>
> Thanks in advance,
>
> Oscar.
>
> On 3 nov, 10:29, Oscar <[EMAIL PROTECTED]> wrote:
>
> > What does mean below lines?
>
> > db.t2_person.exposes=['name','email','password']
> > db.t2_person.displays=['name','email','password']
>
> > Regards,
>
> > Oscar.
>
> > On 3 nov, 00:30, mdipierro <[EMAIL PROTECTED]> wrote:
>
> > > Normally you can do
>
> > > db.define_table('base_table',SQLField('myfield'))
> > > db.define_table('derived_table',db.base_table,SQLField('otherfield'))
>
> > > (both base_table and derived_table are created)
>
> > > or
>
> > > from gluon.sql import SQLTable
> > > base_table=SQLTable('base_table',SQLField('myfield'))
> > > db.define_table('derived_table',base_table,SQLField('otherfield'))
>
> > > (only derived_table is created)
>
> > > In the case T2 things are different because you want to modify the
> > > structure of a table used by T2.
> > > You can do it.
> > > All you need to do is define the table before you instantiate the T2
> > > object. Something like this:
>
> > > db.define_table('t2_person',
> > > db.Field('name'),
> > > db.Field('email'),
> > > db.Field('registration_key'),
> > > db.Field('password','password'),
> > > db.Field('created_by_ip'),
> > > db.Field('created_on','datetime'))
> > > db.t2_person.name.requires=IS_NOT_EMPTY()
>
> > > db.t2_person.email.requires=[IS_EMAIL(),IS_NOT_IN_DB(db,'t2_person.email')]
> > > db.t2_person.password.requires=[IS_NOT_EMPTY(),CRYPT()]
> > > db.t2_person.exposes=['name','email','password']
> > > db.t2_person.displays=['name','email','password']
>
> > > t2=T2(request,response,session,cache,T,db)
>
> > > you can add fields to the t2_person table but you must have the above
> > > fields.
>
> > > Massimo
>
> > > On Nov 1, 11:33 pm, Oscar <[EMAIL PROTECTED]> wrote:
>
> > > > Hi,
>
> > > > I was looking for how to extend a model, I mean, I working with T2 and
> > > > I want to add some more fields to t2_persona table, I tryed defining
> > > > again the table in my new project but It didn't worked. Some oen knows
> > > > how I can accomplish this?
>
> > > > Regards,
>
> > > > Oscar.
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