Hi,
yes i think it is an requirement...
because in my scenario the input for the first field is entered either
by user via the form or by an script which only inserts this single
value and the other field vlaues should be automatic generated by the
functions in my Model.
But may i be wrong? and there is another way to do this?
The way from above works for automatic operations:
def _compute():
return request.vars.field1.split(" ")[:1]
Field("field2", "string", compute=_compute)
But as i said, its not visible in the form for the user.....
Thanks,
JAY
On 17 Feb., 13:00, Tiago Almeida <tiago.b.alme...@gmail.com> wrote:
> Why does everything need to work from model? Is it some requirement?
> Can't you do a function that takes the form and implements that logic? you
> can probably make it so that you pass that function to the onvalidation (or
> something like that) of the form.accepts..
>
> Regards,
> Tiago
> ----
>
> On Wed, Feb 17, 2010 at 11:07 AM, JAY <jwi...@web.de> wrote:
> > Execute functions in Model
>
> > Hi Guys,
>
> > first i´ve to say i am n(oob)ew to Python and Database things, so
> > please be patient.
>
> > Is there any general way to execute custom functions in Model, which
> > not only validate and how to implement them?
>
> > I´ll try to explain with a few examples:
>
> > First the simple one:
>
> > I have a table with 2 fields:
> > db.define_table("table1",
> > Field("field1", "string"),
> > Field("field2", "string"))
>
> > field1 is required so there should be two options:
> > 1. the user enters something in field1 and field2
> > 2. the user enters something in field1 and leaves field2 blank
>
> > In the second case i want to use a function that takes the value from
> > field1 splits the first word and then stores it in field2.
> > something like:
> > def function():
> > field1_value="word1 word2 word3"
> > valuesplit= field1_value.split(" ")[:1]
> > joinvalue= " ".join(valuesplit)
> > return joinvalue
>
> > Everthing should work from model...
>
> > I have already tried the solution from the thread "Populate field
> > based no other fields":
> > def _compute():
> > return request.vars.field1
>
> > Field("field2", "string", compute=_compute
>
> > It works but field2 wont be visible in appadmin.
>
> > Second Example:
>
> > I have 2 tables with 2 fields:
> > db.define_table("table1",
> > Field("field1", "string"),
> > Field("field2", "string"))
>
> > db.define_table("table2",
> > Field("field1", "string"),
> > Field("field2", "string"))
>
> > Now user enters value in table1.field1
> > then funktion should split first part of the value
> > then looking up if value is present in table2.field1 (.like(%value))
> > and if true store the table2.field2 value in table1.field2
>
> > Can anybuddy help?
>
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