| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojo.data.util.sorter"]){ |
| dojo._hasResource["dojo.data.util.sorter"]=true; |
| dojo.provide("dojo.data.util.sorter"); |
| dojo.data.util.sorter.basicComparator=function(a,b){ |
| var r=-1; |
| if(a===null){ |
| a=undefined; |
| } |
| if(b===null){ |
| b=undefined; |
| } |
| if(a==b){ |
| r=0; |
| }else{ |
| if(a>b||a==null){ |
| r=1; |
| } |
| } |
| return r; |
| }; |
| dojo.data.util.sorter.createSortFunction=function(_4,_5){ |
| var _6=[]; |
| function _7(_8,_9){ |
| return function(_a,_b){ |
| var a=_5.getValue(_a,_8); |
| var b=_5.getValue(_b,_8); |
| var _e=null; |
| if(_5.comparatorMap){ |
| if(typeof _8!=="string"){ |
| _8=_5.getIdentity(_8); |
| } |
| _e=_5.comparatorMap[_8]||dojo.data.util.sorter.basicComparator; |
| } |
| _e=_e||dojo.data.util.sorter.basicComparator; |
| return _9*_e(a,b); |
| }; |
| }; |
| var _f; |
| for(var i=0;i<_4.length;i++){ |
| _f=_4[i]; |
| if(_f.attribute){ |
| var _11=(_f.descending)?-1:1; |
| _6.push(_7(_f.attribute,_11)); |
| } |
| } |
| return function(_12,_13){ |
| var i=0; |
| while(i<_6.length){ |
| var ret=_6[i++](_12,_13); |
| if(ret!==0){ |
| return ret; |
| } |
| } |
| return 0; |
| }; |
| }; |
| } |
