I would not make this a reference fields. I would make it a IS_IN_SET(...)
field. This is because possible nationalities do not change very often and
are definitively not changed by the user.
On Tuesday, 9 February 2016 05:34:29 UTC-6, xmarx wrote:
>
> db.define_table('Person',
> Field('last_name', 'string'),
> Field('name', 'string'),
> Field('telephone', 'string'),
> Field('email', 'string'),
> Field('nationality','reference Nationalities',default=1),
> format= '%(last_name)s,%(name)s '
> )
>
> default=the id of USA in Nationalities table
>
>
>
> 9 Şubat 2016 Salı 04:35:41 UTC+2 tarihinde Winter Kryz yazdı:
>>
>> Hello everybody,
>>
>> I am new in web2py, I have 2 tables called 'Nationalities' and 'Person'
>>
>> db.define_table('Nationalities',
>> Field('description', 'string'),
>> common_filter = lambda query:db.Nationalities.description
>> != 'United States',
>> format='%(description)s'
>> )
>>
>> db.define_table('Person',
>> Field('last_name', 'string'),
>> Field('name', 'string'),
>> Field('telephone', 'string'),
>> Field('email', 'string'),
>> Field('nationality','reference
>> Nationalities',requires=IS_IN_DB(db(db.Nationalities.description),
>> 'Nationalities.description', zero=T('United States'))),
>> format= '%(last_name)s,%(name)s '
>> )
>> in 'Nationalities', I have listed all the countries of world and what I
>> get is a dropdown list filled with them
>> Now what I want to do is to display a particular country, let's say
>> 'United States', at top to be ID 0 in my dropdownlist so when somebody
>> fills the form the list shows 'United States' by default. I tried to do a
>> query that shows all the countries except US in the list and then set 'US'
>> as Zero but of course it didn't work because it says that the value that
>> zero has it doesn't exist on the database.
>> Please, I need some help because I'm stuck on this.
>> Thanks!
>>
>
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