[Wicket-user] DropDownChoice confusion
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
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Re: [Wicket-user] DropDownChoice confusion
The documentation might be a little scattered, however is a separate topic.
Nonetheless, the Wicket Library site features most of the Wicket components
and examples of their usage: e. g. DropDownChoice is demonstrated (along
with the IChoiceRenderer) on the
http://www.wicket-library.com/wicket-examples/compref?wicket:bookmarkablePage=:wicket.examples.compref.DropDownChoicePage
Jason Roelofs wrote:
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed. I
thought Wicket was the coolest Java framework out there, but now that I've
used it for 2 weeks on, I can't say that anymore. Every time I've moved on
to the next part of my website, it takes me 2+ hours to figure out how,
and
I'm not talking about entire pages, I'm talking about components of pages.
A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how to use
the thing, nor do the examples explain how it works, just here ya go,
copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed with
Wicket
in general. It may be different than other Java frameworks, but I cannot
say
that it's any better. I like the idea, I like some of the implementation
of
it (how Ajaxing components work, best I've seen), but using the framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it
eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its constructors a
custom
implementation of IChoiceRenderer, which can be used to customize the
item
IDs and labels. You may try to have a look on the IChoiceRenderer and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
-
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Re: [Wicket-user] DropDownChoice confusion
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed. I
thought Wicket was the coolest Java framework out there, but now that I've
used it for 2 weeks on, I can't say that anymore. Every time I've moved on
to the next part of my website, it takes me 2+ hours to figure out how, and
I'm not talking about entire pages, I'm talking about components of pages. A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how to use
the thing, nor do the examples explain how it works, just here ya go, copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed with Wicket
in general. It may be different than other Java frameworks, but I cannot say
that it's any better. I like the idea, I like some of the implementation of
it (how Ajaxing components work, best I've seen), but using the framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its constructors a
custom
implementation of IChoiceRenderer, which can be used to customize the item
IDs and labels. You may try to have a look on the IChoiceRenderer and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
-
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Re: [Wicket-user] DropDownChoice confusion
I'm sorry to hear you don't find the API as obvious. DropDownChoice
seems to be one of the larger offenders usually, though there haven't
been any good suggestions about how to improve this either. Speaking
of which... patches and concrete suggestions are more helpful than
rants as you can imagine. We're pretty open to suggestions in general.
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
How would that work together with the model? Just set AND or OR as the
model value?
Eelco
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed. I
thought Wicket was the coolest Java framework out there, but now that I've
used it for 2 weeks on, I can't say that anymore. Every time I've moved on
to the next part of my website, it takes me 2+ hours to figure out how, and
I'm not talking about entire pages, I'm talking about components of pages. A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how to use
the thing, nor do the examples explain how it works, just here ya go, copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed with Wicket
in general. It may be different than other Java frameworks, but I cannot say
that it's any better. I like the idea, I like some of the implementation of
it (how Ajaxing components work, best I've seen), but using the framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its constructors a
custom
implementation of IChoiceRenderer, which can be used to customize the item
IDs and labels. You may try to have a look on the IChoiceRenderer and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
-
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Re: [Wicket-user] DropDownChoice confusion
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
you can
class mydropdownchoice extends dropdownchoice {
public mydropdownchoice(id, model, final object[] choices) {
super(id, model);
arraylist choiceslist=new arraylist();
for (int i=0;ichoices.length;i++) {
choiceslist.add(choices[i][0]);
}
setchoices(choiceslist);
setrenderer(new ichoicerenderer() {
Object getDisplayValue(Object object) {
return choices[getchoices().indexof(object)][1];
}
String getIdValue(T object, int index) { return object; }
}
}
or something very close to that.
what you have to realize is that your usecase is not very representative of
whats out there.
one, you have only a few choices
two, your list of choices is hardcoded
three, you dont mind keeping those choices and their values in session
these three things are not true for most usecases ive come across
most usecases you have a list of objects, like Person, that you load from
the database. you dont know how many, and you dont want to keep the list in
session. dropdownchoice is optimized for that usage:
add(new dropdownchoice(people, model, new LoadableDetachableModel() {
load() { return db.loadpeople(); }, new ChoiceRenderer(personId,
fullName));
this also happens to be the most generic form. nothing stops you from
subclassing and optimizing the usage for your usecases
-igor
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Re: [Wicket-user] DropDownChoice confusion
Your case would be:
class Option {
String key;
String value;
public Option(String key, String value) {
this.key = key;
this.value = value;
}
}
add(new DropDownChoice(gated, model, Arrays.asList(new Option[]{
new Option(, AND), new Option(|, OR) }), new
ChoiceRenderer(value, key));
Of course, the model has to reference an existing option.
Looking from the example you gave, your problem lies in how to work
with models. And this is a common thing for people new to Wicket. It
seems the obvious thing to do for people is to keep working with
Strings rather than full objects (like Option is), and rather then
putting the model central, do things like
myDropDownChoice.getModelValue().
If you encountered more components you didn't think were obvious, please share.
Eelco
On 2/27/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
I'm sorry to hear you don't find the API as obvious. DropDownChoice
seems to be one of the larger offenders usually, though there haven't
been any good suggestions about how to improve this either. Speaking
of which... patches and concrete suggestions are more helpful than
rants as you can imagine. We're pretty open to suggestions in general.
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
How would that work together with the model? Just set AND or OR as the
model value?
Eelco
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed. I
thought Wicket was the coolest Java framework out there, but now that I've
used it for 2 weeks on, I can't say that anymore. Every time I've moved on
to the next part of my website, it takes me 2+ hours to figure out how, and
I'm not talking about entire pages, I'm talking about components of pages. A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how to use
the thing, nor do the examples explain how it works, just here ya go, copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed with Wicket
in general. It may be different than other Java frameworks, but I cannot say
that it's any better. I like the idea, I like some of the implementation of
it (how Ajaxing components work, best I've seen), but using the framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its constructors a
custom
implementation of IChoiceRenderer, which can be used to customize the item
IDs and labels. You may try to have a look on the IChoiceRenderer and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {, |});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
-
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Re: [Wicket-user] DropDownChoice confusion
Now that actually makes sense. Yes, the dealing of models in Wicket has
thrown me a few times, and in the end is the main source of my frustration,
mainly because I've yet to find a page, a paper, something helping out
people like me who want to do the Rails way of development (for example).
Examples like this are exactly what that paper needs. The number one failing
of Wicket for me so far is that it pushes a new web development philosophy
but makes little to no effort to help people understand this new state of
mind, and I'm sure some, if not most of you here have been through this as
well.
Your example, Eelco, is amazingly verbose, but I can see how it works.
However, to Igor, what is wrong with a hard-coded list of values for a
select box? Why is my suggestion of doing it so wrong, or not fitting in the
Wicket philosophy?
Jason
On 2/27/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
Your case would be:
class Option {
String key;
String value;
public Option(String key, String value) {
this.key = key;
this.value = value;
}
}
add(new DropDownChoice(gated, model, Arrays.asList(new Option[]{
new Option(, AND), new Option(|, OR) }), new
ChoiceRenderer(value, key));
Of course, the model has to reference an existing option.
Looking from the example you gave, your problem lies in how to work
with models. And this is a common thing for people new to Wicket. It
seems the obvious thing to do for people is to keep working with
Strings rather than full objects (like Option is), and rather then
putting the model central, do things like
myDropDownChoice.getModelValue().
If you encountered more components you didn't think were obvious, please
share.
Eelco
On 2/27/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
I'm sorry to hear you don't find the API as obvious. DropDownChoice
seems to be one of the larger offenders usually, though there haven't
been any good suggestions about how to improve this either. Speaking
of which... patches and concrete suggestions are more helpful than
rants as you can imagine. We're pretty open to suggestions in general.
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
How would that work together with the model? Just set AND or OR as the
model value?
Eelco
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed. I
thought Wicket was the coolest Java framework out there, but now that
I've
used it for 2 weeks on, I can't say that anymore. Every time I've
moved on
to the next part of my website, it takes me 2+ hours to figure out
how, and
I'm not talking about entire pages, I'm talking about components of
pages. A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how to
use
the thing, nor do the examples explain how it works, just here ya go,
copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO
usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed with
Wicket
in general. It may be different than other Java frameworks, but I
cannot say
that it's any better. I like the idea, I like some of the
implementation of
it (how Ajaxing components work, best I've seen), but using the
framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it
eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its constructors
a
custom
implementation of IChoiceRenderer, which can be used to customize
the item
IDs and labels. You may try to have a look on the IChoiceRenderer
and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {,
|});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|,
OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
-
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Re: [Wicket-user] DropDownChoice confusion
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Your example, Eelco, is amazingly verbose, but I can see how it works.
However, to Igor, what is wrong with a hard-coded list of values for a
select box? Why is my suggestion of doing it so wrong, or not fitting in the
Wicket philosophy?
did i say it was wrong? or doesnt fit with the philosophy?
i simply said it is not a very common usecase and we optimize core
components for what we think the most common usecases are
-igor
Jason
On 2/27/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
Your case would be:
class Option {
String key;
String value;
public Option(String key, String value) {
this.key = key;
this.value = value;
}
}
add(new DropDownChoice(gated, model, Arrays.asList(new Option[]{
new Option(, AND), new Option(|, OR) }), new
ChoiceRenderer(value, key));
Of course, the model has to reference an existing option.
Looking from the example you gave, your problem lies in how to work
with models. And this is a common thing for people new to Wicket. It
seems the obvious thing to do for people is to keep working with
Strings rather than full objects (like Option is), and rather then
putting the model central, do things like
myDropDownChoice.getModelValue().
If you encountered more components you didn't think were obvious, please
share.
Eelco
On 2/27/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
I'm sorry to hear you don't find the API as obvious. DropDownChoice
seems to be one of the larger offenders usually, though there haven't
been any good suggestions about how to improve this either. Speaking
of which... patches and concrete suggestions are more helpful than
rants as you can imagine. We're pretty open to suggestions in general.
add(new DropDownChoice(gated, model, { {, AND}, {|, OR}});
How would that work together with the model? Just set AND or OR as the
model value?
Eelco
On 2/27/07, Jason Roelofs [EMAIL PROTECTED] wrote:
Which of course makes perfect sense...
I'm sorry if I come across as crash, it's because I'm very annoyed.
I
thought Wicket was the coolest Java framework out there, but now
that I've
used it for 2 weeks on, I can't say that anymore. Every time I've
moved on
to the next part of my website, it takes me 2+ hours to figure out
how, and
I'm not talking about entire pages, I'm talking about components of
pages. A
select, an Ajax-ified form, etc. Why do I have to deal with
IChoiceRenderers? Besides how the documentation doesn't tell me how
to use
the thing, nor do the examples explain how it works, just here ya
go, copy
this. It just doesn't make sense.
Back to the matter at hand, does anyone have example code using
wicket-extensions Select and SelectOptions? There is absolutely NO
usage
documentation on getting all that working together.
Anyway, sorry about the rant, I'm just getting more disappointed
with Wicket
in general. It may be different than other Java frameworks, but I
cannot say
that it's any better. I like the idea, I like some of the
implementation of
it (how Ajaxing components work, best I've seen), but using the
framework
has been an exercise in frustration from day 2.
So I'll head back to banging on the DropDownChoice, I'll get it
eventually,
though I'm open for suggestions.
Jason
On 2/27/07, Robert Novotny [EMAIL PROTECTED] wrote:
The DropDownChoice allows you to specify in one of its
constructors a
custom
implementation of IChoiceRenderer, which can be used to customize
the item
IDs and labels. You may try to have a look on the IChoiceRenderer
and the
ChoiceRenderer (which is its default implementation) JavaDoc.
Jason Roelofs wrote:
Why is nothing in Wicket obvious?
I want:
select ...
option value=AND/option
option value=|OR/option
/select
My model has a 'gated' field that is either '' or '|'
Why can't I have:
add(new DropDownChoice(gated, model, {AND, OR}, {,
|});
or better yet:
add(new DropDownChoice(gated, model, { {, AND}, {|,
OR}});
(assuming properly created arrays, of course)?
How is this supposed to work?
Thanks
Jason
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View this message in context:
Re: [Wicket-user] DropDownChoice confusion
Your example, Eelco, is amazingly verbose, but I can see how it works. Hey, blame Java for that ok? Of course, if you only use strings you're gonna be less verbose :) I tried to show that there is a relation between the objects you work with through your model and how you would use them in the dropdown component. Igor's example actually makes more sense as he shows something that we're advocating all the time: write custom components that fit your needs and code style. It's not that hard, really, and the investment of writing such a component - like 10 minutes to get the one Igor made - saves you any further frustration you might have with a particular component. want more docs want more docs What else is new :) I've been working on Wicket In Action for over a year now and I can tell you it's not a lot of fun to write documentation. Not for me and I'm sure not for most coders. We try to keep the examples as up-to-date and extensive as we can, and we have multiple examples projects. That's the best we can/ want to at this time, together with much appreciated contributions to the WIKI. I recommend you buy Pro Wicket for 20 dollars or so. Eelco - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
