Re: Convert a null Model to a custom string rather than
But it throws Internal Error (not in feedback) when conversion
error rises on this line:
mNestedModel.setObject(object);
So it will be nice to correct it somehow..
Example of error on BigDecimal:
ERROR - RequestCycle - Cannot parse '2.5' using format
java.text.decimalfor...@674dc
org.apache.wicket.util.convert.ConversionException: Cannot parse '2.5'
using format java.text.decimalfor...@674dc
at
org.apache.wicket.util.convert.converters.AbstractConverter.newConversionException(AbstractConverter.java:78)
at
org.apache.wicket.util.convert.converters.AbstractConverter.parse(AbstractConverter.java:58)
at
org.apache.wicket.util.convert.converters.AbstractNumberConverter.parse(AbstractNumberConverter.java:80)
at
org.apache.wicket.util.convert.converters.BigDecimalConverter.convertToObject(BigDecimalConverter.java:43)
at
org.apache.wicket.util.convert.converters.BigDecimalConverter.convertToObject(BigDecimalConverter.java:28)
at
org.apache.wicket.util.lang.PropertyResolverConverter.convert(PropertyResolverConverter.java:68)
at
org.apache.wicket.util.lang.PropertyResolver$MethodGetAndSet.setValue(PropertyResolver.java:1082)
at
org.apache.wicket.util.lang.PropertyResolver$ObjectAndGetSetter.setValue(PropertyResolver.java:582)
at
org.apache.wicket.util.lang.PropertyResolver.setValue(PropertyResolver.java:136)
at
org.apache.wicket.model.AbstractPropertyModel.setObject(AbstractPropertyModel.java:169)
at
common.component.DefaultWhenNullModel.setObject(DefaultWhenNullModel.java:41)
On Wed, Jan 28, 2009 at 11:51 AM, Anton Veretennikov
anton.veretenni...@gmail.com wrote:
Not very nice but works (Jeremy Thomerson's variant with setObject changes):
public class DefaultWhenNullModelT implements IModelT {
private static final long serialVersionUID = 1L;
private final IModelT mNestedModel;
private final T mDefaultValue;
public DefaultWhenNullModel(IModelT nestedModel, T defaultValue) {
mNestedModel = nestedModel;
mDefaultValue = defaultValue;
}
public T getObject() {
T val = mNestedModel.getObject();
return val == null ? mDefaultValue : val;
}
public void setObject(T object) {
if (object!=null object.equals(mDefaultValue)) {
mNestedModel.setObject(null);
} else {
mNestedModel.setObject(object);
}
}
public void detach() {
mNestedModel.detach();
}
}
Usage:
form.add(new TextField(value,
new DefaultWhenNullModel(new
PropertyModel(getSomeModel(),value), Enter a value)
));
On Wed, Jan 28, 2009 at 5:16 AM, nate roe phl...@gmail.com wrote:
Actually, I don't think that this will work for me.
The behavior that I want is to display a special string when the model is
null. However, I still want the model to be null.
My custom converter converts a special keyword to a null model. I want also
to convert a new model to a special keyword for display.
On Tue, Jan 27, 2009 at 11:46 AM, nate roe phl...@gmail.com wrote:
Excellent, thanks for writing that one up!
On Tue, Jan 27, 2009 at 11:41 AM, Jeremy Thomerson
jer...@wickettraining.com wrote:
This has come up quite a bit here on the user list.
See the first example on this page:
http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/
--
Jeremy Thomerson
http://www.wickettraining.com
On Tue, Jan 27, 2009 at 1:38 PM, nate roe phl...@gmail.com wrote:
I'm using Wicket v1.3.4.
I would like to create a kind of TextField that converts a null model
value
to a custom string rather than an empty string. Unfortunately, the
converter is not run when the model object is null, and it looks like
Component.getModelObjectAsString(...) is hard-coded to return when
the
model is null.
Is there some way I can overcome this without modifying the Wicket
source?
Thanks,
Nate Roe
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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Convert a null Model to a custom string rather than
I'm using Wicket v1.3.4. I would like to create a kind of TextField that converts a null model value to a custom string rather than an empty string. Unfortunately, the converter is not run when the model object is null, and it looks like Component.getModelObjectAsString(...) is hard-coded to return when the model is null. Is there some way I can overcome this without modifying the Wicket source? Thanks, Nate Roe
Re: Convert a null Model to a custom string rather than
This has come up quite a bit here on the user list. See the first example on this page: http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/ -- Jeremy Thomerson http://www.wickettraining.com On Tue, Jan 27, 2009 at 1:38 PM, nate roe phl...@gmail.com wrote: I'm using Wicket v1.3.4. I would like to create a kind of TextField that converts a null model value to a custom string rather than an empty string. Unfortunately, the converter is not run when the model object is null, and it looks like Component.getModelObjectAsString(...) is hard-coded to return when the model is null. Is there some way I can overcome this without modifying the Wicket source? Thanks, Nate Roe
Re: Convert a null Model to a custom string rather than
Excellent, thanks for writing that one up! On Tue, Jan 27, 2009 at 11:41 AM, Jeremy Thomerson jer...@wickettraining.com wrote: This has come up quite a bit here on the user list. See the first example on this page: http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/ -- Jeremy Thomerson http://www.wickettraining.com On Tue, Jan 27, 2009 at 1:38 PM, nate roe phl...@gmail.com wrote: I'm using Wicket v1.3.4. I would like to create a kind of TextField that converts a null model value to a custom string rather than an empty string. Unfortunately, the converter is not run when the model object is null, and it looks like Component.getModelObjectAsString(...) is hard-coded to return when the model is null. Is there some way I can overcome this without modifying the Wicket source? Thanks, Nate Roe
Re: Convert a null Model to a custom string rather than
Actually, I don't think that this will work for me. The behavior that I want is to display a special string when the model is null. However, I still want the model to be null. My custom converter converts a special keyword to a null model. I want also to convert a new model to a special keyword for display. On Tue, Jan 27, 2009 at 11:46 AM, nate roe phl...@gmail.com wrote: Excellent, thanks for writing that one up! On Tue, Jan 27, 2009 at 11:41 AM, Jeremy Thomerson jer...@wickettraining.com wrote: This has come up quite a bit here on the user list. See the first example on this page: http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/ -- Jeremy Thomerson http://www.wickettraining.com On Tue, Jan 27, 2009 at 1:38 PM, nate roe phl...@gmail.com wrote: I'm using Wicket v1.3.4. I would like to create a kind of TextField that converts a null model value to a custom string rather than an empty string. Unfortunately, the converter is not run when the model object is null, and it looks like Component.getModelObjectAsString(...) is hard-coded to return when the model is null. Is there some way I can overcome this without modifying the Wicket source? Thanks, Nate Roe
Re: Convert a null Model to a custom string rather than
Not very nice but works (Jeremy Thomerson's variant with setObject changes):
public class DefaultWhenNullModelT implements IModelT {
private static final long serialVersionUID = 1L;
private final IModelT mNestedModel;
private final T mDefaultValue;
public DefaultWhenNullModel(IModelT nestedModel, T defaultValue) {
mNestedModel = nestedModel;
mDefaultValue = defaultValue;
}
public T getObject() {
T val = mNestedModel.getObject();
return val == null ? mDefaultValue : val;
}
public void setObject(T object) {
if (object!=null object.equals(mDefaultValue)) {
mNestedModel.setObject(null);
} else {
mNestedModel.setObject(object);
}
}
public void detach() {
mNestedModel.detach();
}
}
Usage:
form.add(new TextField(value,
new DefaultWhenNullModel(new
PropertyModel(getSomeModel(),value), Enter a value)
));
On Wed, Jan 28, 2009 at 5:16 AM, nate roe phl...@gmail.com wrote:
Actually, I don't think that this will work for me.
The behavior that I want is to display a special string when the model is
null. However, I still want the model to be null.
My custom converter converts a special keyword to a null model. I want also
to convert a new model to a special keyword for display.
On Tue, Jan 27, 2009 at 11:46 AM, nate roe phl...@gmail.com wrote:
Excellent, thanks for writing that one up!
On Tue, Jan 27, 2009 at 11:41 AM, Jeremy Thomerson
jer...@wickettraining.com wrote:
This has come up quite a bit here on the user list.
See the first example on this page:
http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/
--
Jeremy Thomerson
http://www.wickettraining.com
On Tue, Jan 27, 2009 at 1:38 PM, nate roe phl...@gmail.com wrote:
I'm using Wicket v1.3.4.
I would like to create a kind of TextField that converts a null model
value
to a custom string rather than an empty string. Unfortunately, the
converter is not run when the model object is null, and it looks like
Component.getModelObjectAsString(...) is hard-coded to return when
the
model is null.
Is there some way I can overcome this without modifying the Wicket
source?
Thanks,
Nate Roe
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
