Re: CompoundPropertyModel and nested DataView
if you are a newbie do not use CPM it is a shortcut model more suited for users who know and understand models well. -igor On Wed, Jun 24, 2009 at 5:35 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: I am a Wicket newbie and am currently struggling with CompoundPropertyModel. I have found a lot on the list about CompoundPropertyModel but not regarding this specific issue. I am building a shopping cart. I have placed the cart's form inside a panel and the cart items (via DataView) are inside the form. ShoppingCart is a model that I would like to use to represent the current state of the entire cart. It contains a array of ShoppingCartItem 's. However, when running this, cartItems never gets set on the ShoppingCart model. While debugging, cartItems is a child of the panelForm, but never gets populated on the ShoppingCart pojo via CompoundPropertyModel. The form does persist and if I traverse the panelForm object I could figure out how to get to the ShoppingCartItem's...but I'd rather not. J What am I missing? Is there a better way to do this? See code attached below. Thanks!! code ... public CartPanel(String id) { super(id); Form panelForm = new Form(panelForm, new CompoundPropertyModel(new ShoppingCart())) { �...@override protected void onSubmit() { // need to rewrite cookie on update ShoppingCart cart = (ShoppingCart) getModelObject(); System.out.println(cart.getCartItems());// check if cart items got populated } }; add(panelForm); IDataProvider dataProvider = new ShoppingCartItemsProvider(); DataView dataView = new DataView(cartItems, dataProvider) { �...@override protected void populateItem(final Item item) { final ShoppingCartItem cartItem = (ShoppingCartItem) item .getModelObject(); item.add(new Label(itemName, cartItem.getName())); item.add(new TextField(quantity, new ShoppingCartItemModel( new Model(cartItem), ShoppingCartItemType.QUANTITY))); } }; // add general text labels and buttons to the cart addFieldsAndButtons(panelForm); panelForm.add(dataView); }... /code Thanks!! -- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
RE: CompoundPropertyModel and nested DataView
Does that mean what I am trying to do is not suited for CompoundPropertyModel? :) Can you point me to some documentation that might help me understand it better? -Original Message- From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com] Sent: Thursday, June 25, 2009 11:22 AM To: users@wicket.apache.org Subject: Re: CompoundPropertyModel and nested DataView if you are a newbie do not use CPM it is a shortcut model more suited for users who know and understand models well. -igor On Wed, Jun 24, 2009 at 5:35 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: I am a Wicket newbie and am currently struggling with CompoundPropertyModel. I have found a lot on the list about CompoundPropertyModel but not regarding this specific issue. I am building a shopping cart. I have placed the cart's form inside a panel and the cart items (via DataView) are inside the form. ShoppingCart is a model that I would like to use to represent the current state of the entire cart. It contains a array of ShoppingCartItem 's. However, when running this, cartItems never gets set on the ShoppingCart model. While debugging, cartItems is a child of the panelForm, but never gets populated on the ShoppingCart pojo via CompoundPropertyModel. The form does persist and if I traverse the panelForm object I could figure out how to get to the ShoppingCartItem's...but I'd rather not. J What am I missing? Is there a better way to do this? See code attached below. Thanks!! code ... public CartPanel(String id) { super(id); Form panelForm = new Form(panelForm, new CompoundPropertyModel(new ShoppingCart())) { �...@override protected void onSubmit() { // need to rewrite cookie on update ShoppingCart cart = (ShoppingCart) getModelObject(); System.out.println(cart.getCartItems());// check if cart items got populated } }; add(panelForm); IDataProvider dataProvider = new ShoppingCartItemsProvider(); DataView dataView = new DataView(cartItems, dataProvider) { �...@override protected void populateItem(final Item item) { final ShoppingCartItem cartItem = (ShoppingCartItem) item .getModelObject(); item.add(new Label(itemName, cartItem.getName())); item.add(new TextField(quantity, new ShoppingCartItemModel( new Model(cartItem), ShoppingCartItemType.QUANTITY))); } }; // add general text labels and buttons to the cart addFieldsAndButtons(panelForm); panelForm.add(dataView); }... /code Thanks!! -- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation. - 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 For additional commands, e-mail: users-h...@wicket.apache.org
Re: CompoundPropertyModel and nested DataView
The problem in your example is not the CPM, but your data provider - where does it get it's list of items from? -- Jeremy Thomerson http://www.wickettraining.com On Thu, Jun 25, 2009 at 6:07 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: Does that mean what I am trying to do is not suited for CompoundPropertyModel? :) Can you point me to some documentation that might help me understand it better? -Original Message- From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com] Sent: Thursday, June 25, 2009 11:22 AM To: users@wicket.apache.org Subject: Re: CompoundPropertyModel and nested DataView if you are a newbie do not use CPM it is a shortcut model more suited for users who know and understand models well. -igor On Wed, Jun 24, 2009 at 5:35 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: I am a Wicket newbie and am currently struggling with CompoundPropertyModel. I have found a lot on the list about CompoundPropertyModel but not regarding this specific issue. I am building a shopping cart. I have placed the cart's form inside a panel and the cart items (via DataView) are inside the form. ShoppingCart is a model that I would like to use to represent the current state of the entire cart. It contains a array of ShoppingCartItem 's. However, when running this, cartItems never gets set on the ShoppingCart model. While debugging, cartItems is a child of the panelForm, but never gets populated on the ShoppingCart pojo via CompoundPropertyModel. The form does persist and if I traverse the panelForm object I could figure out how to get to the ShoppingCartItem's...but I'd rather not. J What am I missing? Is there a better way to do this? See code attached below. Thanks!! code ... public CartPanel(String id) { super(id); Form panelForm = new Form(panelForm, new CompoundPropertyModel(new ShoppingCart())) { �...@override protected void onSubmit() { // need to rewrite cookie on update ShoppingCart cart = (ShoppingCart) getModelObject(); System.out.println(cart.getCartItems());// check if cart items got populated } }; add(panelForm); IDataProvider dataProvider = new ShoppingCartItemsProvider(); DataView dataView = new DataView(cartItems, dataProvider) { �...@override protected void populateItem(final Item item) { final ShoppingCartItem cartItem = (ShoppingCartItem) item .getModelObject(); item.add(new Label(itemName, cartItem.getName())); item.add(new TextField(quantity, new ShoppingCartItemModel( new Model(cartItem), ShoppingCartItemType.QUANTITY))); } }; // add general text labels and buttons to the cart addFieldsAndButtons(panelForm); panelForm.add(dataView); }... /code Thanks!! -- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation. - 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 For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: CompoundPropertyModel and nested DataView
And, no, this is not the ideal place for a CPM. A CPM is most commonly used on a form that has many form components below it that directly edit items off of the form's model. ie: new Form(new CPM(new Person())) form.add(new Label(firstName)) --- by using a CPM, you save creating your own property model here form.add(new Label(lastName)) --- by using a CPM, you save creating your own property model here I have been using Wicket for several years, and I hardly ever use a CPM. It's a shortcut that you can use if you choose to do so. But it's nothing more than that. Like Igor said, you'll be better served by understanding models first rather than understanding CPM. -- Jeremy Thomerson http://www.wickettraining.com On Thu, Jun 25, 2009 at 6:22 PM, Jeremy Thomersonjer...@wickettraining.com wrote: The problem in your example is not the CPM, but your data provider - where does it get it's list of items from? -- Jeremy Thomerson http://www.wickettraining.com On Thu, Jun 25, 2009 at 6:07 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: Does that mean what I am trying to do is not suited for CompoundPropertyModel? :) Can you point me to some documentation that might help me understand it better? -Original Message- From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com] Sent: Thursday, June 25, 2009 11:22 AM To: users@wicket.apache.org Subject: Re: CompoundPropertyModel and nested DataView if you are a newbie do not use CPM it is a shortcut model more suited for users who know and understand models well. -igor On Wed, Jun 24, 2009 at 5:35 PM, Hubbard, Bobbybobby.hubb...@garmin.com wrote: I am a Wicket newbie and am currently struggling with CompoundPropertyModel. I have found a lot on the list about CompoundPropertyModel but not regarding this specific issue. I am building a shopping cart. I have placed the cart's form inside a panel and the cart items (via DataView) are inside the form. ShoppingCart is a model that I would like to use to represent the current state of the entire cart. It contains a array of ShoppingCartItem 's. However, when running this, cartItems never gets set on the ShoppingCart model. While debugging, cartItems is a child of the panelForm, but never gets populated on the ShoppingCart pojo via CompoundPropertyModel. The form does persist and if I traverse the panelForm object I could figure out how to get to the ShoppingCartItem's...but I'd rather not. J What am I missing? Is there a better way to do this? See code attached below. Thanks!! code ... public CartPanel(String id) { super(id); Form panelForm = new Form(panelForm, new CompoundPropertyModel(new ShoppingCart())) { �...@override protected void onSubmit() { // need to rewrite cookie on update ShoppingCart cart = (ShoppingCart) getModelObject(); System.out.println(cart.getCartItems());// check if cart items got populated } }; add(panelForm); IDataProvider dataProvider = new ShoppingCartItemsProvider(); DataView dataView = new DataView(cartItems, dataProvider) { �...@override protected void populateItem(final Item item) { final ShoppingCartItem cartItem = (ShoppingCartItem) item .getModelObject(); item.add(new Label(itemName, cartItem.getName())); item.add(new TextField(quantity, new ShoppingCartItemModel( new Model(cartItem), ShoppingCartItemType.QUANTITY))); } }; // add general text labels and buttons to the cart addFieldsAndButtons(panelForm); panelForm.add(dataView); }... /code Thanks!! -- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation. - 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 For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org