#SpringBind on dynamically created fields

[dedoel]

I'm working on a small Spring MVC application and I'm trying to create a dynamic form using Velocity, Spring and jQuery.

I followed that article, of course with some changes :

http://eggsylife.co.uk/2009/11/30/sp...ists-and-ajax/


My Person class has a List of phones (it's a LazyList, with AutoPopulatingList it doesn't work)

....
@OneToMany(cascade = CascadeType.ALL, mappedBy = "person", fetch = FetchType.EAGER, targetEntity = Phone.class)
private List<Phone> phones;
	
	public Person() {
        phones = LazyList.decorate
                (new ArrayList<Phone>(),
                 new InstantiateFactory(Phone.class));
        }
....

My PersonFormController method

@RequestMapping(method = RequestMethod.GET)
	public String showPersonForm(ModelMap modelMap) {
		Person person = new Person();
		modelMap.addAttribute(person);
		return "personForm";
	}

and in my personForm.vm file in one form there are :

1. Person adding #springBind

<td>Name</td>
					<td>
						#springBind("person.name")
						<input type="text" name="name" value="$!person.name">
						<td width="60%">
         			   		<font color="red">$!{status.errorMessage}</font>
      				    </td>
					</td>

2.And Phone adding

<table id="tablePhones">
				<tr>
					<td>Number</td>
					<td>
						#springBind("person.phones[0].number")
						<input name="person.phones[0].number" size="40" />
					</td>			
					<td><a href="#" id="add">Add new phone</a></td>		
				</tr>
</table>

I am able to produce new inputs for phone adding with AJAX and jQuery just like in an article posted above and it works fine.

So now when I fill all fields in my PersonFormController there is a method

@RequestMapping(method = RequestMethod.POST)
	public String addPerson(@ModelAttribute("person") Person person,
			BindingResult result) {
		personValidator.validate(person, result);
		if (result.hasErrors()) {
			return "personForm";
		} else {
			personDao.saveOrUpdate(person);
			return "redirect:index.htm";
		}
	}

Validation is fine and... only the Person is persisted and always one Phone with all null values. What do I need to change to fully persist all phones with current person? Could anyone help me with this? I am trying to figure it out for a long time..

Maybe You need more information or my code?

Thanks

Dawid

[dedoel]

Ok, I had to change the name attribute in my inputs to ${status.expression} and it works correctly now

<table id="tablePhones">
				<tr>
					<td>Number</td>
					<td>
						#springBind("person.phones[0].number")
						<input name="person.phones[0].number" size="40" />
					</td>			
					<td><a href="#" id="add">Add new phone</a></td>		
				</tr>
</table>