deal it in the app itself (SQLFORM without automatic dbio, plus
onvalidation) or with DAL callbacks...
On Saturday, November 16, 2013 9:57:08 PM UTC+1, mweissen wrote:
>
> Let's say I have a table like
>
> db.define_table("phonebook",
> Field("phonenumber", represent=lambda v,r: "secret" if r.secret==True
> else v),
> Field("secret","boolean", default=False)
> )
>
> The first part is simple: if I want to hide a phonenumber, I have to check
> the secret field and instead of the phonenumber the word "secret" is
> visible.
>
> Now the second part: a phone number, which has been made secret, should
> not be visible again. It should be possible to enter a new phonenumberor to
> clear the field, but the secret-flag should only be writable, if
> phonenumber is empty.
>
> Field("secret", "boolean", writable=lambda v,r: (r.phonenumber=="") or
> (v==False))
>
> would do the job, but writable cann't be a lambda function - right?
>
> Maybe I could use a second boolean field but it seems to become
> complicated. Are there any ideas for a simple solution?
>
> Regards, Martin
>
>
>
>
>
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