On Sep 4, 2006, at 5:23 PM, Fernando Aires wrote:
> I need to use a subform inside a form. For example: if I'm
> classifying a football team, I need to add all player's name and role
> (goalie, middlefielder etc.), and also pass it as form info.
> I see that Oprius Software uses something alike, but I couldn't
> find its source code. Could someone be able to post a sample, or
> explain how can I do it using TurboGears?
A form inside a form?? Can you really do that? As Jason pointed out,
you can use a RepeatingFieldSet for this. Something like:
class PlayerFields(WidgetsList):
id = HiddenField(validator=Int(if_empty=None))
name = TextField()
role = SingleSelectField(options=get_roles)
class TeamFields(WidgetsList):
name = TextField()
location = TextField()
players = RepeatingFieldSet(fields=PlayerFields())
team_form = TableForm(fields=TeamFields())
# Note, "team" is assumed to be a Team SO instance passed by
# the "default" method of fastdata.DataController in a RESTful way.
# team.players is a MultipleJoin (or RelatedJoin if your players are
over-exploited ;) )
# to Player
@expose(...)
def edit_team(self, team):
# let the user edit the current players and up to 3 more in one go
repetitions = len(team.players) + 3
return dict(
form = team_form,
form_params = dict(
value = team,
repetitions = dict(
players = repetitions
),
action = "update_team",
)
)
@error_handler(edit_team)
@validate(form=team_form)
@expose()
def update_team(self, team, name, location, players):
team.set(name=name, location=location)
for player in players:
id = player.pop(id)
if id:
player = Player.get(id)
player.set(**player)
elif player['name'] or player['role']:
# if no id is set but name or role is the user is
creating a
# new player
new = Player(**player)
# Not sure SO allows this, I already converted to SA...
;)
team.players.append(new)
flash("Team updated successfully")
raise redirect("../")
Disclaimer: Just wrote this on Mail. Take it as pseudo-code. It'll
probably won't work without tweaking or might not
work at all ;) However, you can get an idea.... (I've written similar
working-code but I'm now too lazy to look it up, sorry). Play around
and if you get stuck just ask :)
HTH,
Alberto
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