Adding nodes and attributes to XML using E4X
Initially I was under assumption E4X is something very complex to work with having habituated to AS2 style and was still using XMLDocument. However gave E4x a try.. My aim is to add an attribute and a node under it. Base XML what I have is below.
1 2 3 4 5 6 7 8 9 10 | var xmlData:XML = <classInfo class="XI" subject ="Maths"></classInfo>; if(xmlData.chapter.@label =="CN1"){ trace("label exists"); }else{ trace("label doesn\'t exist"); xmlData.chapter.@label = "CN1"; } trace("xmlData "+ xmlData.toXMLString()); |
trace what comes out is
1 2 3 4 | label doesn't exist xmlData <classInfo class="XI" subject="Maths"> <chapter label="CN1"/> </classInfo> |
Adding nodes with conditions, this really saves lot of effort and lines of code
1 2 3 4 5 6 7 8 | if(xmlData.chapter.(@label =="CN1").lesson.@label == "CN1LN1"){ trace("its there "); }else{ trace("oops missing"); xmlData.chapter.(@label =="CN1").lesson.@label = "CN1LN1"; xmlData.chapter.(@label =="CN1").lesson.(@label = "CN1LN1").appendChild("Some dummy text"); } trace("xmlData "+ xmlData.toXMLString()); |
Below is the trace result
1 2 3 4 5 6 7 | oops missing xmlData <classInfo class="XI" subject="Maths"> <chapter label="CN1"> <lesson label="CN1LN1">Some dummy text</lesson> </chapter> </classInfo> xmlData Some dummy text |