Wow, first of all, lose the eval()'s.
You don't need to dynamically construct a call to eval() to resolve a
property. Instead of:
eval("someObject." + someProperty)
You should say:
someObject[someProperty]
And this is, of course, chainable:
a[property1][property2]
-Fred
On Wed, Jun 11, 2008 at 1:01 PM, TAOS <[EMAIL PROTECTED]> wrote:
>
> I try to use the prototype form method called serializeElements, to
> get all elements in form and build a JSON var.
> It work, but not in the best way.
> It method get all fields in a form and build a JSON, but it dont put
> JSON inside JSON.
> Example:
>
> If i have the follow form:
>
> input name="person.name"
> input name="person.age"
> input name="person.address.street"
>
> The serializeElements's method build a JSON like this
>
> { "person.name": "??", "person.age": "??", "person.address.street":
> "??" }
>
> With my modified method the JSON will be generated like this
>
> { name: "??", age: "??", address: { street: "??" } }
> Or
> { car: { name: "??", age: "??", address: { street: "??" } } }
>
> What are you think about this method?
>
> Can i add this method in prototype framework? How?
>
> /**
> * Serialize a form into a JSON var
> *
> * How to use:
> *
> * var json = formToJSON('form_test', { prefix : 'car.', exclude:
> ['description'] } );
> *
> * <form id="form_test">
> * <input type="text" name="car.id" value="2" />
> * <input type="text" name="car.name" value="Z5" />
> * <input type="text" name="car.description" value="Sport car" />
> * <select name="car.company.id">
> * <option value="1" selected="selected">BMW</value>
> * <option value="2">Mercedes</value>
> * </select>
> * <input type="checkbox" name="car.optionals" value="carsound"
> checked="checked">Car Sound
> * <input type="checkbox" name="car.optionals" value="gps">GPS
> * <input type="checkbox" name="car.optionals" value="absbreak"
> checked="checked">ABS Break
> * </form>
> *
> * The example above will generate the folow JSON.
> *
> * { id: '2', name: 'Z5', company: { id: 1 }, optionals: ['carsound',
> 'absbreak'] }
> */
> function formToJSON(form, options) {
> elements = $(form).getElements();
> if (typeof options != 'object') options = { hash: !!options };
> else if (Object.isUndefined(options.hash)) options.hash = true;
> var key, value, submitted = false, submit = options.submit;
>
> var data = elements.inject({ }, function(result, element) {
> if (!element.disabled && element.name) {
> key = element.name;
> value = $(element).getValue();
> if (value != null && (element.type != 'submit' ||
> (!submitted &&
> submit !== false && (!submit || key == submit) &&
> (submitted
> = true)))) {
>
> key = ( !Object.isUndefined(options.prefix) ) ?
> key.replace(options.prefix,"") : key;
>
> if( Object.isArray(options.exclude) )
> if( options.exclude.indexOf(key) != -1 )
> return result;
>
> if( key.indexOf(".") != -1 ) {
> var processkey = key;
> var tree = "";
> while( processkey.indexOf(".") != -1 ) {
> var newkey = processkey.substring(
> 0,
> processkey.indexOf(".") );
> processkey = processkey.replace(
> newkey + ".", "" );
>
> tree += (tree == "") ? newkey : "."
> + newkey;
>
> if( eval("result." + tree) ==
> undefined ||
> eval("result." + tree) == null )
> eval("result." + tree + " =
> new Object()") ;
>
> if( processkey.indexOf(".")
> == -1 )
> if( processkey in
> eval( "result." + tree ) ) {
> if (
> !Object.isArray( eval( "result." + tree + "." +
> processkey ) ) )
>
> eval("result." + tree + "." + processkey + " = [ result." +
> tree + "." + processkey + "]");
>
>
> eval("result." + tree + "." + processkey +
> ".push(value)");
> } else
> eval("result." +
> tree + "." + processkey + " =
> value");
> }
> } else
> if (key in result) {
> if ( !Object.isArray( result[key] ) )
> result[key] = [ result[key] ];
>
> result[key].push(value);
> } else
> result[key] = value;
> }
> }
>
> return result;
> });
> return options.hash ? data : Object.toQueryString(data);
> };
>
>
> thx,
> Thiago Antonius
> >
>
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