Component Model question
I have a component I'm designing where it displays a list of items to
the user, so the setup for the component on the page might look like
this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the original/
additional items (name=tags) which were entered and one for deleted
items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach, grape,
and removing banana.
I'm a bit stuck on how I should get my component to put these values
back into it's model? Obviously in behind the scenes I'm going to
have to do some stuff in the MultiTextInput ctor to have the incoming
Collection added to a composite model that contains both the original/
added items and the removed items.
I'm just not sure where I broker the form submittal so that I have a
chance to move the tags and removed_tags into the proper place in
the model for my component. When the user calls getModelObject() on
my component they'll get an object back where they can query
model.getItems() and model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
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Re: Component Model question
Are you trying to handle state on client side? While that is possible,
it is not the purpose of Wicket. Would you consider managing he state
on server side?
**
Martin
2009/4/10 Craig Tataryn crai...@tataryn.net:
I have a component I'm designing where it displays a list of items to the
user, so the setup for the component on the page might look like this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the
original/additional items (name=tags) which were entered and one for
deleted items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach, grape, and
removing banana.
I'm a bit stuck on how I should get my component to put these values back
into it's model? Obviously in behind the scenes I'm going to have to do
some stuff in the MultiTextInput ctor to have the incoming Collection added
to a composite model that contains both the original/added items and the
removed items.
I'm just not sure where I broker the form submittal so that I have a chance
to move the tags and removed_tags into the proper place in the model for
my component. When the user calls getModelObject() on my component they'll
get an object back where they can query model.getItems() and
model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
podcast:http://feeds.feedburner.com/TheBasementCoders
irc: ThaDon on freenode #basementcoders, ##wicket, #papernapkin
twitter: craiger
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Re: Component Model question
On 10-Apr-09, at 12:58 PM, Martin Makundi wrote:
Are you trying to handle state on client side? While that is possible,
it is not the purpose of Wicket. Would you consider managing he state
on server side?
It's an existing javascript widget I wrote so I was looking for a
quick port to Wicket. However there is no reason there couldn't be two
versions, the Ajax version could redraw everything serverside upon
addition/deletion of items.
So if it's possible for me to (easily) map those two sets of hidden
inputs to my model upon form submit I'd really like to know how.
Thanks,
Craig.
**
Martin
2009/4/10 Craig Tataryn crai...@tataryn.net:
I have a component I'm designing where it displays a list of items
to the
user, so the setup for the component on the page might look like
this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the
original/additional items (name=tags) which were entered and one
for
deleted items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach,
grape, and
removing banana.
I'm a bit stuck on how I should get my component to put these
values back
into it's model? Obviously in behind the scenes I'm going to have
to do
some stuff in the MultiTextInput ctor to have the incoming
Collection added
to a composite model that contains both the original/added items
and the
removed items.
I'm just not sure where I broker the form submittal so that I have
a chance
to move the tags and removed_tags into the proper place in the
model for
my component. When the user calls getModelObject() on my component
they'll
get an object back where they can query model.getItems() and
model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
podcast:http://feeds.feedburner.com/TheBasementCoders
irc: ThaDon on freenode #basementcoders, ##wicket, #papernapkin
twitter: craiger
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Re: Component Model question
So if it's possible for me to (easily) map those two sets of hidden inputs to my model upon form submit I'd really like to know how. What specifically is the difficult part? ** Martin - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Component Model question
look at textfield.
all you have to do is to write out the input tags with a name you
obtain from formcomponent.getname() - to guarantee uniqueness, then
override convertinput() and pull those values out of the request into
a collection and call setconvertedinput(collection). formcomponent
will take care of everything else such as validation and updating the
model. thats all there is to it.
-igor
On Fri, Apr 10, 2009 at 10:49 AM, Craig Tataryn crai...@tataryn.net wrote:
I have a component I'm designing where it displays a list of items to the
user, so the setup for the component on the page might look like this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the
original/additional items (name=tags) which were entered and one for
deleted items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach, grape, and
removing banana.
I'm a bit stuck on how I should get my component to put these values back
into it's model? Obviously in behind the scenes I'm going to have to do
some stuff in the MultiTextInput ctor to have the incoming Collection added
to a composite model that contains both the original/added items and the
removed items.
I'm just not sure where I broker the form submittal so that I have a chance
to move the tags and removed_tags into the proper place in the model for
my component. When the user calls getModelObject() on my component they'll
get an object back where they can query model.getItems() and
model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
podcast:http://feeds.feedburner.com/TheBasementCoders
irc: ThaDon on freenode #basementcoders, ##wicket, #papernapkin
twitter: craiger
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Re: Component Model question
On 10-Apr-09, at 3:10 PM, Igor Vaynberg wrote:
look at textfield.
all you have to do is to write out the input tags with a name you
obtain from formcomponent.getname() - to guarantee uniqueness, then
override convertinput() and pull those values out of the request into
a collection and call setconvertedinput(collection). formcomponent
will take care of everything else such as validation and updating the
model. thats all there is to it.
Thanks Igor, in my version I had overridden updateModel like so to get
it working:
public void updateModel() {
String[] added = this.getInputAsArray();
String[] removed = getRequest().getParameters(removed_ +
getInputName());
MultiTextInputModel model = (MultiTextInputModel)
this.getModel();
model.setItems(added == null ? EMPTY_STRING_COL :
Arrays.asList(added));
model.setRemovedItems(removed == null ? EMPTY_STRING_COL :
Arrays.asList(removed));
}
I'm assuming that convertInput fires before update model, so I should
override that method as you suggest to handle different types but
maintain my updateModel as well to shovel things into the right places
in the model?
Craig.
-igor
On Fri, Apr 10, 2009 at 10:49 AM, Craig Tataryn
crai...@tataryn.net wrote:
I have a component I'm designing where it displays a list of items
to the
user, so the setup for the component on the page might look like
this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the
original/additional items (name=tags) which were entered and one
for
deleted items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach,
grape, and
removing banana.
I'm a bit stuck on how I should get my component to put these
values back
into it's model? Obviously in behind the scenes I'm going to have
to do
some stuff in the MultiTextInput ctor to have the incoming
Collection added
to a composite model that contains both the original/added items
and the
removed items.
I'm just not sure where I broker the form submittal so that I have
a chance
to move the tags and removed_tags into the proper place in the
model for
my component. When the user calls getModelObject() on my component
they'll
get an object back where they can query model.getItems() and
model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
podcast:http://feeds.feedburner.com/TheBasementCoders
irc: ThaDon on freenode #basementcoders, ##wicket, #papernapkin
twitter: craiger
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
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Re: Component Model question
no, all you have to do is override convertinput and inside call
setconvertedinput(yourcollection);
the default implementation of updatemodel() already does
getmodel().setobject(getconvertedinput());
-igor
On Fri, Apr 10, 2009 at 3:29 PM, Craig Tataryn crai...@tataryn.net wrote:
On 10-Apr-09, at 3:10 PM, Igor Vaynberg wrote:
look at textfield.
all you have to do is to write out the input tags with a name you
obtain from formcomponent.getname() - to guarantee uniqueness, then
override convertinput() and pull those values out of the request into
a collection and call setconvertedinput(collection). formcomponent
will take care of everything else such as validation and updating the
model. thats all there is to it.
Thanks Igor, in my version I had overridden updateModel like so to get it
working:
public void updateModel() {
String[] added = this.getInputAsArray();
String[] removed = getRequest().getParameters(removed_ +
getInputName());
MultiTextInputModel model = (MultiTextInputModel)
this.getModel();
model.setItems(added == null ? EMPTY_STRING_COL :
Arrays.asList(added));
model.setRemovedItems(removed == null ? EMPTY_STRING_COL :
Arrays.asList(removed));
}
I'm assuming that convertInput fires before update model, so I should
override that method as you suggest to handle different types but maintain
my updateModel as well to shovel things into the right places in the model?
Craig.
-igor
On Fri, Apr 10, 2009 at 10:49 AM, Craig Tataryn crai...@tataryn.net
wrote:
I have a component I'm designing where it displays a list of items to the
user, so the setup for the component on the page might look like this:
add(new MultiTextInputCollectionString(tags, new
ArrayListString() {
{
add(apple);
add(banana);
}
}));
The widget will render two sets of hidden inputs, one for the
original/additional items (name=tags) which were entered and one for
deleted items (name=removed_tags).
For instance:
input type=hidden name=tags value=apple/
input type=hidden name=tags value=peach/
input type=hidden name=tags value=grape/
input type=hidden name=removed_tags value=banana/
The above would result from me keeping apple and adding peach, grape, and
removing banana.
I'm a bit stuck on how I should get my component to put these values back
into it's model? Obviously in behind the scenes I'm going to have to do
some stuff in the MultiTextInput ctor to have the incoming Collection
added
to a composite model that contains both the original/added items and the
removed items.
I'm just not sure where I broker the form submittal so that I have a
chance
to move the tags and removed_tags into the proper place in the model
for
my component. When the user calls getModelObject() on my component
they'll
get an object back where they can query model.getItems() and
model.getRemovedItems().
As always, any help greatly appreciated!
Craig.
--
Craig Tataryn
site: http://www.basementcoders.com/
podcast:http://feeds.feedburner.com/TheBasementCoders
irc: ThaDon on freenode #basementcoders, ##wicket, #papernapkin
twitter: craiger
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
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