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Further modified jQuery 1.4 .param() method to serialize arrays containing non-scalar values. PHP and jQuery BBQ can both deserialize these structures, while rack (as of 1.0.0) cannot.

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Ben Alman 2009-12-16 11:54:12 +08:00 • committed by John Resig
parent aa81bb5e45
commit 927e1966de
2 changed files with 47 additions and 32 deletions
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69
src/ajax.js
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@ -591,7 +591,10 @@ jQuery.extend({
// Serialize an array of form elements or a set of
// key/values into a query string
param: function( a ) {
var s = [],
// Set jQuery.param.traditional to true for jQuery <= 1.3.2 behavior.
param_traditional = jQuery.param.traditional;
function add( key, value ){
@ -600,8 +603,38 @@ jQuery.extend({
s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(value);
}
// If an array was passed in, assume that it is an array
// of form elements
// Recursively encode parameters from object.
function buildParams( prefix, obj ) {
if ( jQuery.isArray(obj) ) {
// Serialize array item.
jQuery.each( obj, function(i,v){
if ( param_traditional ) {
add( prefix, v );
} else {
// If array item is non-scalar (array or object), encode its numeric
// index to resolve deserialization ambiguity issues. Note that rack
// (as of 1.0.0) can't currently deserialize nested arrays properly,
// and attempting to do so may cause a server error. Possible fixes
// are to modify rack's deserialization algorithm or to provide an
// option or flag to force array serialization to be shallow.
buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v );
}
});
} else if ( !param_traditional && typeof obj === "object" ) {
// Serialize object item.
jQuery.each( obj, function(k,v){
buildParams( prefix + "[" + k + "]", v );
});
} else {
// Serialize scalar item.
add( prefix, obj );
}
}
// If an array was passed in, assume that it is an array of form elements.
if ( jQuery.isArray(a) || a.jquery ) {
// Serialize the form elements
jQuery.each( a, function() {
@ -609,35 +642,11 @@ jQuery.extend({
});
} else {
// Encode parameters from object, recursively. If
// jQuery.param.traditional is set, encode the "old" way
// (the way 1.3.2 or older did it)
jQuery.each( a, function buildParams( prefix, obj ) {
if ( jQuery.isArray(obj) ) {
jQuery.each( obj, function(i,v){
// Due to rails' limited request param syntax, numeric array
// indices are not supported. To avoid serialization ambiguity
// issues, serialized arrays can only contain scalar values. php
// does not have this issue, but we should go with the lowest
// common denominator
add( prefix + ( param_traditional ? "" : "[]" ), v );
});
} else if ( typeof obj == "object" ) {
if ( param_traditional ) {
add( prefix, obj );
} else {
jQuery.each( obj, function(k,v){
buildParams( prefix ? prefix + "[" + k + "]" : k, v );
});
}
} else {
add( prefix, obj );
}
});
// If jQuery.param.traditional is set, encode the "old" way (the way
// 1.3.2 or older did it), otherwise encode params recursively.
jQuery.each( a, buildParams );
}
// Return the resulting serialization
return s.join("&").replace(r20, "+");
}