lib/dojo/io-query.js.uncompressed.js

   1 define("dojo/io-query", ["./_base/lang"], function(lang){
   2
   3 // module:
   4 //              dojo/io-query
   5
   6 var backstop = {};
   7
   8 return {
   9 // summary:
  10 //              This module defines query string processing functions.
  11
  12         objectToQuery: function objectToQuery(/*Object*/ map){
  13                 // summary:
  14         //              takes a name/value mapping object and returns a string representing
  15         //              a URL-encoded version of that object.
  16         // example:
  17         //              this object:
  18         //
  19         //      |       {
  20         //      |               blah: "blah",
  21         //      |               multi: [
  22         //      |                       "thud",
  23         //      |                       "thonk"
  24         //      |               ]
  25         //      |       };
  26         //
  27         //              yields the following query string:
  28         //
  29         //      |       "blah=blah&multi=thud&multi=thonk"
  30
  31         // FIXME: need to implement encodeAscii!!
  32         var enc = encodeURIComponent, pairs = [];
  33         for(var name in map){
  34             var value = map[name];
  35             if(value != backstop[name]){
  36                 var assign = enc(name) + "=";
  37                 if(lang.isArray(value)){
  38                     for(var i = 0, l = value.length; i < l; ++i){
  39                         pairs.push(assign + enc(value[i]));
  40                     }
  41                 }else{
  42                     pairs.push(assign + enc(value));
  43                 }
  44             }
  45         }
  46         return pairs.join("&"); // String
  47     },
  48
  49         queryToObject: function queryToObject(/*String*/ str){
  50         // summary:
  51         //              Create an object representing a de-serialized query section of a
  52         //              URL. Query keys with multiple values are returned in an array.
  53         //
  54         // example:
  55         //              This string:
  56         //
  57         //      |               "foo=bar&foo=baz&thinger=%20spaces%20=blah&zonk=blarg&"
  58         //
  59         //              results in this object structure:
  60         //
  61         //      |               {
  62         //      |                       foo: [ "bar", "baz" ],
  63         //      |                       thinger: " spaces =blah",
  64         //      |                       zonk: "blarg"
  65         //      |               }
  66         //
  67         //              Note that spaces and other urlencoded entities are correctly
  68         //              handled.
  69
  70         // FIXME: should we grab the URL string if we're not passed one?
  71         var dec = decodeURIComponent, qp = str.split("&"), ret = {}, name, val;
  72         for(var i = 0, l = qp.length, item; i < l; ++i){
  73             item = qp[i];
  74             if(item.length){
  75                 var s = item.indexOf("=");
  76                 if(s < 0){
  77                     name = dec(item);
  78                     val = "";
  79                 }else{
  80                     name = dec(item.slice(0, s));
  81                     val  = dec(item.slice(s + 1));
  82                 }
  83                 if(typeof ret[name] == "string"){ // inline'd type check
  84                     ret[name] = [ret[name]];
  85                 }
  86
  87                 if(lang.isArray(ret[name])){
  88                     ret[name].push(val);
  89                 }else{
  90                     ret[name] = val;
  91                 }
  92             }
  93         }
  94         return ret; // Object
  95     }
  96 };
  97 });