Not sure I understand exactly, but if you want to know whether tableA is 
referenced by any other tables, you can do something like:

tableA_referenced_by = set(field._table for field in db.tableA.
_referenced_by)

That will give you a set of any tables (the actual DAL Table objects) that 
have fields referencing tableA (note, I used set() in order to de-duplicate 
in case a given table has more than one field referencing tableA).

Anthony

On Friday, November 25, 2016 at 11:11:41 PM UTC-5, Áureo Dias Neto wrote:
>
> Hello guys, 
>
> I'm making a search form, and i need to verify, if, a table is referenced 
> in another table, that's two have a relationship one-to-many.
>
> My asking is, i'm make it with a for loop, and it's return a maximum 
> recursion of python objet..
>
> How to dow, a search, in all the table, to check, if this table have any 
> register on another table, that's refere to this first table?
>

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
--- 
You received this message because you are subscribed to the Google Groups 
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to