Getting $.param working well; Patch by ben_alman

[jquery.git] / src / ajax.js

diff --git a/src/ajax.js b/src/ajax.js
index 47e6635..858ac4b 100644 (file)
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -585,39 +585,52 @@ jQuery.extend({
        // Serialize an array of form elements or a set of
        // key/values into a query string
        param: function( a ) {
-               var s = [];
-
+               var s = [],
+                       param_traditional = jQuery.param.traditional;
+               
                function add( key, value ){
+                       // If value is a function, invoke it and return its value
+                       value = jQuery.isFunction(value) ? value() : value;
                        s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(value);
                }
-
+               
                // If an array was passed in, assume that it is an array
                // of form elements
-               if ( jQuery.isArray(a) || a.jquery ) {
+               if ( jQuery.isArray(a) || a.jquery )
                        // Serialize the form elements
                        jQuery.each( a, function() {
                                add( this.name, this.value );
                        });
-               } else {
-                       // Recursively encode parameters from object, 
-                       // building a prefix path as we go down
-                       function buildParams(obj, prefix)
-                       {
-                               if ( jQuery.isArray(obj) ) {
-                                       for ( var i = 0, length = obj.length; i < length; i++ ) {
-                                               buildParams( obj[i], prefix );
-                                       };
-                               } else if( typeof(obj) == "object" ) {
-                                       for ( var j in obj ) {
-                                               var postfix = ((j.indexOf("[]") > 0) ? "[]" : ""); // move any brackets to the end
-                                               buildParams(obj[j], (prefix ? (prefix+"["+j.replace("[]", "")+"]"+postfix) : j) );
-                                       }
-                               } else {
-                                       add( prefix, jQuery.isFunction(obj) ? obj() : obj );
-                               }
-                       }
-                       buildParams(a);
-               }
+                       
+               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 );
+                               
+                       });
 
                // Return the resulting serialization
                return s.join("&").replace(r20, "+");