[web2py:30405] Re: initial data to CRUD forms

Tue, 08 Sep 2009 07:46:01 -0700

Hello Massimo,

On doing that I get the following error in that line:
{{db.delivery.student_id=self.id}}
SyntaxError: Object exists and cannot be redefined: student_id

However, if I do:
{{db.delivery.student_id.requires=IS_IN_SET([self.id])}}
I get a dropdown to choose student Id, with only the passed id selectable.
This would be fine if I could have this field as hidden, is it possible to make it a hidden field in the form?

Thanks a lot,
Julio

mdipierro wrote: 
Mind that T3 is quite dated. Try replace

{{=self.read(db.student)}}
{{=self.itemize(db.delivery)}}
{{=self.create(db.delivery)}}

with

{{=self.read(db.student)}}
{{=self.itemize(db.delivery)}}
{{db.delivery.student_id=self.id}}
{{=self.create(db.delivery)}}

Let us know if this fixes it.

Massimo

On Sep 7, 11:42 pm, Júlio Monteiro <[email protected]> wrote:
  
Hello there,

On building my first web2py app, I bumped into a problem, perhaps you
can help?

I have the following DB:

db.define_table("student",
      db.Field("name", length=100, notnull=True),
      db.Field("type", requires=IS_IN_SET(("Master","Doctorate"))),
      db.Field("entry_date", "date"),
      db.Field("deposit_date", "date", notnull=False),
      db.Field("defense_date", "date", notnull=False)
      )

db.define_table("delivery",
      db.Field("category", "string"),
      db.Field("description"),
      db.Field("deliver_date", "date", required=False),
      db.Field("devolution_date", "date", required=False),
      db.Field("student_id", db.student)
      )

db.delivery.student_id.requires=IS_IN_DB(db,'student.id','student.name')
-----------------

What I want is to have view where I can display student information,
while, at the same time, show deliveries related to him and have a
create form to add new deliveries, with student_id pre-selected to his id

I am using the T3 wiki, so I tried adding the following to a page:

{{=self.read(db.student)}}
{{=self.itemize(db.delivery)}}
{{=self.create(db.delivery)}}

If I pass the student id to request.args[0], the read form works
allright, but the create form does not set its student_id to the id that
came from the request.

Is there a way to pass this student_id to the form "initial data" to
accomplish that? Or the only way is writing a new widget?

Thanks,
Julio Monteiro


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