Newbie Question about populating form values
I'm a new Wicket using trying to figure out how to populate a form's
initial value with data from a bean (that is in the session already).
I've actually got it working, but I don't think I'm doing the best way.
public final class EmployeeMain extends BasePage {
public EmployeeMain() {
super ();
Form employeeForm=new Form(employeeContactForm);
Contact contact=getEmployeeSession().getEmployee().getEmpInfo();
employeeForm.setModel(new CompoundPropertyModel(contact));
add(new TextField(firstName,new
Model(contact.getFirstName(;
add(new TextField(lastName));
}
My issue is with this line:
add(new TextField(firstName,new Model(contact.getFirstName(;
Should I have to set the model even though I'm binding the form to a
bean has this property?
What is the correct way to handle setting the initial form value from a
bean?
Thanks,
David
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Re: Newbie Question about populating form values
If you're using a CPM there's no need to explicitly set models for child
components. Also think about what you want to happen on page reload.
Generally I'd imagine you want current data, so set CPM's object on
Page.onBeforeRender():
public class EmployeeMain extends BasePage{
final private FormContact employeeForm;
public EmployeeMain()
{
//super(); //no need - call implied
employeeForm = new FormContact(employeeContactForm, new
CompoundpropertyModel(null)); //we'll set model object @ page render time
add(employeeForm);
employeeForm.add(new TextFieldString(firstName)); //assuming existence
of String contact.getFirstName() method
employeeForm.add(new TextFieldString(lastName));
}
@Override
public void onBeforeRender()
{
employeeForm.setDefaultModelObject(getEmployeeSession().getEmployee().getEmpInfo());
//get up-to-date Contact and set as CPM's object
super.onBeforeRender(); //have to call to allow page children to render
themselves
}
that's it. Note that if you set CPM's object in page constructor, then on
page refresh, Contact won't be updated (because constructor won't run, but
onBeforeRender() will).
On Wed, Apr 14, 2010 at 8:39 AM, David Hamilton
dhamil...@hermitagelighting.com wrote:
I'm a new Wicket using trying to figure out how to populate a form's
initial value with data from a bean (that is in the session already).
I've actually got it working, but I don't think I'm doing the best way.
public final class EmployeeMain extends BasePage {
public EmployeeMain() {
super ();
Form employeeForm=new Form(employeeContactForm);
Contact contact=getEmployeeSession().getEmployee().getEmpInfo();
employeeForm.setModel(new CompoundPropertyModel(contact));
add(new TextField(firstName,new
Model(contact.getFirstName(;
add(new TextField(lastName));
}
My issue is with this line:
add(new TextField(firstName,new Model(contact.getFirstName(;
Should I have to set the model even though I'm binding the form to a
bean has this property?
What is the correct way to handle setting the initial form value from a
bean?
Thanks,
David
Keep it Green! To help protect the environment, please
only print this email if necessary.
Printing email can cost more than you think.
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intended solely for the individual or entity
to which it is addressed and may contain
confidential and/or privileged material.
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other use of or taking action in reliance
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Re: Newbie Question about populating form values
Why not use a LoadableDetachableModel instead of setting on onBeforeRender()?
On Wed, Apr 14, 2010 at 12:10 PM, Nikita Tovstoles
nikita.tovsto...@gmail.com wrote:
If you're using a CPM there's no need to explicitly set models for child
components. Also think about what you want to happen on page reload.
Generally I'd imagine you want current data, so set CPM's object on
Page.onBeforeRender():
public class EmployeeMain extends BasePage{
final private FormContact employeeForm;
public EmployeeMain()
{
//super(); //no need - call implied
employeeForm = new FormContact(employeeContactForm, new
CompoundpropertyModel(null)); //we'll set model object @ page render time
add(employeeForm);
employeeForm.add(new TextFieldString(firstName)); //assuming existence
of String contact.getFirstName() method
employeeForm.add(new TextFieldString(lastName));
}
@Override
public void onBeforeRender()
{
employeeForm.setDefaultModelObject(getEmployeeSession().getEmployee().getEmpInfo());
//get up-to-date Contact and set as CPM's object
super.onBeforeRender(); //have to call to allow page children to render
themselves
}
that's it. Note that if you set CPM's object in page constructor, then on
page refresh, Contact won't be updated (because constructor won't run, but
onBeforeRender() will).
On Wed, Apr 14, 2010 at 8:39 AM, David Hamilton
dhamil...@hermitagelighting.com wrote:
I'm a new Wicket using trying to figure out how to populate a form's
initial value with data from a bean (that is in the session already).
I've actually got it working, but I don't think I'm doing the best way.
public final class EmployeeMain extends BasePage {
public EmployeeMain() {
super ();
Form employeeForm=new Form(employeeContactForm);
Contact contact=getEmployeeSession().getEmployee().getEmpInfo();
employeeForm.setModel(new CompoundPropertyModel(contact));
add(new TextField(firstName,new
Model(contact.getFirstName(;
add(new TextField(lastName));
}
My issue is with this line:
add(new TextField(firstName,new Model(contact.getFirstName(;
Should I have to set the model even though I'm binding the form to a
bean has this property?
What is the correct way to handle setting the initial form value from a
bean?
Thanks,
David
Keep it Green! To help protect the environment, please
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Printing email can cost more than you think.
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to which it is addressed and may contain
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If you have received this email in error please
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Re: Newbie Question about populating form values
Yeah, guess you could do that too, but then you'd have to wrap one model
into another (since LDM does not do property matching like CPM) + you've to
extend LDM.
On Wed, Apr 14, 2010 at 9:24 AM, James Carman
jcar...@carmanconsulting.comwrote:
Why not use a LoadableDetachableModel instead of setting on
onBeforeRender()?
On Wed, Apr 14, 2010 at 12:10 PM, Nikita Tovstoles
nikita.tovsto...@gmail.com wrote:
If you're using a CPM there's no need to explicitly set models for child
components. Also think about what you want to happen on page reload.
Generally I'd imagine you want current data, so set CPM's object on
Page.onBeforeRender():
public class EmployeeMain extends BasePage{
final private FormContact employeeForm;
public EmployeeMain()
{
//super(); //no need - call implied
employeeForm = new FormContact(employeeContactForm, new
CompoundpropertyModel(null)); //we'll set model object @ page render time
add(employeeForm);
employeeForm.add(new TextFieldString(firstName)); //assuming
existence
of String contact.getFirstName() method
employeeForm.add(new TextFieldString(lastName));
}
@Override
public void onBeforeRender()
{
employeeForm.setDefaultModelObject(getEmployeeSession().getEmployee().getEmpInfo());
//get up-to-date Contact and set as CPM's object
super.onBeforeRender(); //have to call to allow page children to render
themselves
}
that's it. Note that if you set CPM's object in page constructor, then on
page refresh, Contact won't be updated (because constructor won't run,
but
onBeforeRender() will).
On Wed, Apr 14, 2010 at 8:39 AM, David Hamilton
dhamil...@hermitagelighting.com wrote:
I'm a new Wicket using trying to figure out how to populate a form's
initial value with data from a bean (that is in the session already).
I've actually got it working, but I don't think I'm doing the best way.
public final class EmployeeMain extends BasePage {
public EmployeeMain() {
super ();
Form employeeForm=new Form(employeeContactForm);
Contact contact=getEmployeeSession().getEmployee().getEmpInfo();
employeeForm.setModel(new CompoundPropertyModel(contact));
add(new TextField(firstName,new
Model(contact.getFirstName(;
add(new TextField(lastName));
}
My issue is with this line:
add(new TextField(firstName,new Model(contact.getFirstName(;
Should I have to set the model even though I'm binding the form to a
bean has this property?
What is the correct way to handle setting the initial form value from a
bean?
Thanks,
David
Keep it Green! To help protect the environment, please
only print this email if necessary.
Printing email can cost more than you think.
Learn more on our website:
http://www.hermitagelighting.com/printing_email.php
The information transmitted in this email is
intended solely for the individual or entity
to which it is addressed and may contain
confidential and/or privileged material.
Any review, retransmission, dissemination or
other use of or taking action in reliance
upon this information by persons or entities
other than the intended recipient is prohibited.
If you have received this email in error please
immediately notify us by reply email to the sender.
You must destroy the original material and its contents from any
computer.
-
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Re: Newbie Question about populating form values
That's one of the key concepts of Wicket models.
On Wed, Apr 14, 2010 at 2:04 PM, Nikita Tovstoles
nikita.tovsto...@gmail.com wrote:
Yeah, guess you could do that too, but then you'd have to wrap one model
into another (since LDM does not do property matching like CPM) + you've to
extend LDM.
On Wed, Apr 14, 2010 at 9:24 AM, James Carman
jcar...@carmanconsulting.comwrote:
Why not use a LoadableDetachableModel instead of setting on
onBeforeRender()?
On Wed, Apr 14, 2010 at 12:10 PM, Nikita Tovstoles
nikita.tovsto...@gmail.com wrote:
If you're using a CPM there's no need to explicitly set models for child
components. Also think about what you want to happen on page reload.
Generally I'd imagine you want current data, so set CPM's object on
Page.onBeforeRender():
public class EmployeeMain extends BasePage{
final private FormContact employeeForm;
public EmployeeMain()
{
//super(); //no need - call implied
employeeForm = new FormContact(employeeContactForm, new
CompoundpropertyModel(null)); //we'll set model object @ page render time
add(employeeForm);
employeeForm.add(new TextFieldString(firstName)); //assuming
existence
of String contact.getFirstName() method
employeeForm.add(new TextFieldString(lastName));
}
@Override
public void onBeforeRender()
{
employeeForm.setDefaultModelObject(getEmployeeSession().getEmployee().getEmpInfo());
//get up-to-date Contact and set as CPM's object
super.onBeforeRender(); //have to call to allow page children to render
themselves
}
that's it. Note that if you set CPM's object in page constructor, then on
page refresh, Contact won't be updated (because constructor won't run,
but
onBeforeRender() will).
On Wed, Apr 14, 2010 at 8:39 AM, David Hamilton
dhamil...@hermitagelighting.com wrote:
I'm a new Wicket using trying to figure out how to populate a form's
initial value with data from a bean (that is in the session already).
I've actually got it working, but I don't think I'm doing the best way.
public final class EmployeeMain extends BasePage {
public EmployeeMain() {
super ();
Form employeeForm=new Form(employeeContactForm);
Contact contact=getEmployeeSession().getEmployee().getEmpInfo();
employeeForm.setModel(new CompoundPropertyModel(contact));
add(new TextField(firstName,new
Model(contact.getFirstName(;
add(new TextField(lastName));
}
My issue is with this line:
add(new TextField(firstName,new Model(contact.getFirstName(;
Should I have to set the model even though I'm binding the form to a
bean has this property?
What is the correct way to handle setting the initial form value from a
bean?
Thanks,
David
Keep it Green! To help protect the environment, please
only print this email if necessary.
Printing email can cost more than you think.
Learn more on our website:
http://www.hermitagelighting.com/printing_email.php
The information transmitted in this email is
intended solely for the individual or entity
to which it is addressed and may contain
confidential and/or privileged material.
Any review, retransmission, dissemination or
other use of or taking action in reliance
upon this information by persons or entities
other than the intended recipient is prohibited.
If you have received this email in error please
immediately notify us by reply email to the sender.
You must destroy the original material and its contents from any
computer.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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