u9.7 weboperation / webcall and params out
Author: yves.de.montmollin@aonhewitt.com (yves2m)
Hello, Question : I begin with Web and Uniface 9.7 and I don't understand well how things are working together I've this portion of code :
;--------------------------------------------------------------------------------------------------- ;Get params given with URL ( ...?k1=toto&k2=titi&k3=Something Else) ; getUrlParam ("k3", vVal ) --> vVal = "Something Else" ;--------------------------------------------------------------------------------------------------- weboperation getUrlParam params string pId : IN ; Param Name string pVal : OUT ; Value for this ParamName endparams javascript // Function found somewhere on the web that get the value for the param function getUrlPar (sVar) { return unescape(window.location.search.replace(new RegExp("^(?:.*[&\\?]" + escape(sVar).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1")); } pVal = getUrlPar(pId); alert ("1: getUrlParam : " + pId + " = " + pVal); // Here the alert gives the right Id and Val return pVal; // Doesn't change anything endjavascript end ; getUrlParam ;--------------------------------------------------------------------------------------------------- ; Test for getUrlParam ;--------------------------------------------------------------------------------------------------- weboperation testGetUrlParam params endparams javascript // Get the infos like a $_Get in Php var vVal; uniface.getInstance("SFE100001BBIS").activate("getUrlParam", "k3", vVal); alert ("2: Value back from getUrlParam : " + vVal); // vVal is empty !!!!! endjavascript end ; testGetUrlParam
and when I try with this URL ".../SFE100001BBIS?k1=toto&k2=titi&k3=Something%20Else" I get a 1st alert with [1: getUrlParam : k3 = Somethnig Else] and a 2nd alert with [2: Value back from getUrlParam : undefined] I don't understand what I have to do to get the value for my param out Thanks for your help Yves
2 Comments
Local Administrator
Hello Yves, the activate method works in asynchronous way. That's why you don't have return value. For doing this you have to use the Promise way:
weboperation getUrlParam params string pId : IN ; Param Name endparams javascript // ... return pVal; endjavascript end ; getUrlParam weboperation testGetUrlParam javascript uniface.getInstance(“SFE100001BBIS”).activate(“getUrlParam”, “k3”).then(function(ret){ var val = ret.returnValue; // val returned by the promise alert (“2: Value back from getUrlParam : ” + val); } endjavascript end ; testGetUrlParamAuthor: Philippe (philippe.grangeray@agfa.com)
Local Administrator
Hello Philippe, Thanks for your answer. As I said, I'm new to web and I forogot the asynchrone working way.
It's clear to me now and I can continue Best regards Yves
Author: yves2m (yves.de.montmollin@aonhewitt.com)