Re: CompoundPropertyModel and FormComponent
At this point I would override/debug method updateModel() inside
AddressPanel to see if model's object is modified by this method .
Just my 2 cents...
Yes, I think you are doing it the Wicket way, but your snippet and
mine should work. Do you modify components' model somewhere else?
No, I don't think so. The page to which the component is added is constructed
as follows:
CompoundPropertyModelHomePage model = new
CompoundPropertyModelHomePage(this);
FormHomePage form = new FormHomePage(form, model);
form.add(new TextFieldString(person.firstname));
form.add(new AdresPanel(person.adres));
No other code modifies the model.
Which model do you get if you call getDefaultModel() inside oninitialize?
The result of getDefaultModel() is an instance of
CompoundPropertyModel$AttachedCompoundPropertyModel, with owner set to the
AdresPanel and with target set to a CompoundPropertyModel which in turn has
target HomePage.
I noticed that upon initializing the model is set correctly. However when
inspecting the model in onBeforeRender() during the submit request the target
of the model of the AddressPanel.street model is set to HomePage.
Thanks for your reply. I've tried it but it still gave the same error.
However I also tried the following modified version of your idea:
In AddressPanel.java:
@Override
protected void onInitialize() {
super.onInitialize();
Object o = getDefaultModelObject();
setDefaultModel(new CompoundPropertyModel(getDefaultModelObject()));
}
With the above code I can now load the page, also the
getDefaultModelObject() returns the correct Address instance. Unfortunately
upon submitting the form I get the same exception again (No get method
defined for class: class foo.HomePage expression: street).
By the way: am I doing things the Wicket way? Is this how you would reuse
parts of a form in Wicket?
Best regards,
Bob
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RE: CompoundPropertyModel and FormComponent
Thanks for your response. After some more debugging I've found the cause and
also found a solution.
The cause is that models of intermediate components, such as the Panel in my
case, are never initialized if they do not already have a model.
The parent's model is looked up in Component.initModel(), however this method
uses a special method for getting the model of the parent that does not
initialize the parent's model if it is not already initialized. The behaviour
is intentional as there is a comment on this line:
// Get model
// Don't call the getModel() that could initialize many inbetween
// completely useless models.
// IModel model = current.getModel();
IModel? model = current.getModelImpl();
In my case I think this intermediate the inbetween model should get
initialized.
The workaround is to initialize the model in onBeforeRender(), before calling
super.onBeforeRender(), and let the Panel implement the IFormVisitorParticipant
interface. Then in IFormVisitorParticipant.processChildren() initialize the
model again (by just calling getDefaultModel()). This last trick is needed in
order to get the model initialized before it's children are submitted.
The complete class is as follows:
public class AddressPanel extends Panel implements IFormVisitorParticipant {
public AddressPanel(String id) {
super(id);
add(new TextFieldString(street));
}
protected IModel? initModel() {
IModel? model = super.initModel();
return new CompoundPropertyModelObject(model);
}
protected void onBeforeRender() {
getDefaultModel(); // getDefaultModel initialized model if not yet
initialized
super.onBeforeRender();
}
public boolean processChildren() {
getDefaultModel();
return true;
}
}
In SomePage.class you can bind the panel to an Address property:
Address address; // consists of a single property named street
SomePage() {
FormSomePage form = new FormSomePage(form, new
CompoundPropertyModel(this));
form.add(new AddressPanel(address));
add(form);
}
This solution seems a bit awkward though so I'm using a constructor with model
solution in my application.
Best regards,
Bob
At this point I would override/debug method updateModel() inside
AddressPanel to see if model's object is modified by this method .
Just my 2 cents...
Yes, I think you are doing it the Wicket way, but your snippet and
mine should work. Do you modify components' model somewhere else?
No, I don't think so. The page to which the component is added is
constructed as follows:
CompoundPropertyModelHomePage model = new
CompoundPropertyModelHomePage(this);
FormHomePage form = new FormHomePage(form, model);
form.add(new TextFieldString(person.firstname));
form.add(new AdresPanel(person.adres));
No other code modifies the model.
Which model do you get if you call getDefaultModel() inside oninitialize?
The result of getDefaultModel() is an instance of
CompoundPropertyModel$AttachedCompoundPropertyModel, with owner set to the
AdresPanel and with target set to a CompoundPropertyModel which in turn has
target HomePage.
I noticed that upon initializing the model is set correctly. However when
inspecting the model in onBeforeRender() during the submit request the target
of the model of the AddressPanel.street model is set to HomePage.
Thanks for your reply. I've tried it but it still gave the same error.
However I also tried the following modified version of your idea:
In AddressPanel.java:
@Override
protected void onInitialize() {
super.onInitialize();
Object o = getDefaultModelObject();
setDefaultModel(new
CompoundPropertyModel(getDefaultModelObject()));
}
With the above code I can now load the page, also the
getDefaultModelObject() returns the correct Address instance. Unfortunately
upon submitting the form I get the same exception again (No get method
defined for class: class foo.HomePage expression: street).
By the way: am I doing things the Wicket way? Is this how you would
reuse
parts of a form in Wicket?
Best regards,
Bob
-
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Re: CompoundPropertyModel and FormComponent
Hi,
I think you need to build a CompoundPropertyModel inside the component
itself. Override onInitialize method of AddressPanel and try with
something like this:
@Override
protected void onInitialize() {
super.onInitialize();
setDefaultModel(new CompoundPropertyModel(getDefaultModel()));
}
Hi list,
I've created a reusable form component for editing an address, called
AddressPanel. It inherits from FormComponent and consists of multiple text
fields for inputting data, instances of the component get added to a Form
instance.
How do I use this component together with a CompoundPropertyModel? I'm using
the following code to add the component to the form:
FormHomePage form = new FormHomePage(form, new
CompoundPropertyModelHomePage(this)); // HomePage has an instance of Person called person
form.add(new TextFieldString(person.firstname));
form.add(new AddressPanel(person.address));
However this gives the following exception: Last cause: No get method defined for
class: class foo.HomePage expression: street.
street is a text field that is added to the AddressPanel. Is it possible to have the
street field bound to person.address.street without renaming the text field inside
AddressPanel? I don't want to rename it since this way I can't reuse the component for other
entities that have addresses.
Best regards,
Bob
Think green - keep it on the screen.
This e-mail and any attachment is for authorised use by the intended
recipient(s) only. It may contain proprietary material, confidential
information and/or be subject to legal privilege. It should not be copied,
disclosed to, retained or used by, any other party. If you are not an intended
recipient then please promptly delete this e-mail and any attachment and all
copies and inform the sender. Thank you.
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RE: CompoundPropertyModel and FormComponent
Thanks for your reply. I've tried it but it still gave the same error.
However I also tried the following modified version of your idea:
In AddressPanel.java:
@Override
protected void onInitialize() {
super.onInitialize();
Object o = getDefaultModelObject();
setDefaultModel(new CompoundPropertyModel(getDefaultModelObject()));
}
With the above code I can now load the page, also the getDefaultModelObject()
returns the correct Address instance. Unfortunately upon submitting the form I
get the same exception again (No get method defined for class: class
foo.HomePage expression: street).
By the way: am I doing things the Wicket way? Is this how you would reuse
parts of a form in Wicket?
Best regards,
Bob
Hi,
I think you need to build a CompoundPropertyModel inside the component
itself. Override onInitialize method of AddressPanel and try with
something like this:
@Override
protected void onInitialize() {
super.onInitialize();
setDefaultModel(new CompoundPropertyModel(getDefaultModel()));
}
Hi list,
I've created a reusable form component for editing an address, called
AddressPanel. It inherits from FormComponent and consists of multiple text
fields for inputting data, instances of the component get added to a Form
instance.
How do I use this component together with a CompoundPropertyModel? I'm using
the following code to add the component to the form:
FormHomePage form = new FormHomePage(form, new
CompoundPropertyModelHomePage(this)); // HomePage has an instance of Person
called person
form.add(new TextFieldString(person.firstname));
form.add(new AddressPanel(person.address));
However this gives the following exception: Last cause: No get method
defined for class: class foo.HomePage expression: street.
street is a text field that is added to the AddressPanel. Is it possible
to have the street field bound to person.address.street without renaming the
text field inside AddressPanel? I don't want to rename it since this way I
can't reuse the component for other entities that have addresses.
Best regards,
Bob
Think green - keep it on the screen.
This e-mail and any attachment is for authorised use by the intended
recipient(s) only. It may contain proprietary material, confidential
information and/or be subject to legal privilege. It should not be copied,
disclosed to, retained or used by, any other party. If you are not an intended
recipient then please promptly delete this e-mail and any attachment and all
copies and inform the sender. Thank you.
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Think green - keep it on the screen.
This e-mail and any attachment is for authorised use by the intended
recipient(s) only. It may contain proprietary material, confidential
information and/or be subject to legal privilege. It should not be copied,
disclosed to, retained or used by, any other party. If you are not an intended
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Re: CompoundPropertyModel and FormComponent
Yes, I think you are doing it the Wicket way, but your snippet and
mine should work. Do you modify components' model somewhere else? Which
model do you get if you call getDefaultModel() inside oninitialize?
Thanks for your reply. I've tried it but it still gave the same error.
However I also tried the following modified version of your idea:
In AddressPanel.java:
@Override
protected void onInitialize() {
super.onInitialize();
Object o = getDefaultModelObject();
setDefaultModel(new CompoundPropertyModel(getDefaultModelObject()));
}
With the above code I can now load the page, also the getDefaultModelObject() returns the
correct Address instance. Unfortunately upon submitting the form I get the same exception
again (No get method defined for class: class foo.HomePage expression:
street).
By the way: am I doing things the Wicket way? Is this how you would reuse
parts of a form in Wicket?
Best regards,
Bob
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
RE: CompoundPropertyModel and FormComponent
Yes, I think you are doing it the Wicket way, but your snippet and
mine should work. Do you modify components' model somewhere else?
No, I don't think so. The page to which the component is added is constructed
as follows:
CompoundPropertyModelHomePage model = new
CompoundPropertyModelHomePage(this);
FormHomePage form = new FormHomePage(form, model);
form.add(new TextFieldString(person.firstname));
form.add(new AdresPanel(person.adres));
No other code modifies the model.
Which model do you get if you call getDefaultModel() inside oninitialize?
The result of getDefaultModel() is an instance of
CompoundPropertyModel$AttachedCompoundPropertyModel, with owner set to the
AdresPanel and with target set to a CompoundPropertyModel which in turn has
target HomePage.
I noticed that upon initializing the model is set correctly. However when
inspecting the model in onBeforeRender() during the submit request the target
of the model of the AddressPanel.street model is set to HomePage.
Thanks for your reply. I've tried it but it still gave the same error.
However I also tried the following modified version of your idea:
In AddressPanel.java:
@Override
protected void onInitialize() {
super.onInitialize();
Object o = getDefaultModelObject();
setDefaultModel(new CompoundPropertyModel(getDefaultModelObject()));
}
With the above code I can now load the page, also the
getDefaultModelObject() returns the correct Address instance. Unfortunately
upon submitting the form I get the same exception again (No get method
defined for class: class foo.HomePage expression: street).
By the way: am I doing things the Wicket way? Is this how you would reuse
parts of a form in Wicket?
Best regards,
Bob
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Think green - keep it on the screen.
This e-mail and any attachment is for authorised use by the intended
recipient(s) only. It may contain proprietary material, confidential
information and/or be subject to legal privilege. It should not be copied,
disclosed to, retained or used by, any other party. If you are not an intended
recipient then please promptly delete this e-mail and any attachment and all
copies and inform the sender. Thank you.
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