query to get user info using Ajax

Question

emphasized text

<apex:page >
<script>
var result = sforce.connection.query("Select Name,Id from User", {
onSuccess : success, onFailure : failure});
function success(result) {
var it = new sforce.QueryResultIterator(result);
while(it.hasNext()){
var record = it.next();
log(record.Name + " -- " + record.Id);
}
}
function failure(error) {
log("An error has occurred " + error);
}

</script>
  <apex:form >
  <apex:pageBlock >
  <apex:commandButton value="get user info" onclick="chechDevMode();"/>
  </apex:pageBlock>
  </apex:form>
</apex:page>

this is my vf page,,am trying to get user info,by clcking the button get user info,,pls suggest how to do it.thanks in advance.

Answer 1

try this code..

You need to add connection.js else you will get error like sforce is not define..

or you can use $user global variable to get the current user info..

Since you need an example to get the sforce.query result

Example

<apex:page >
    <script src="../../soap/ajax/37.0/connection.js" type="text/javascript"></script>

    <script>
    sforce.connection.sessionId='{!$Api.Session_ID}';
    var result = sforce.connection.query("Select Name,Id from User WHERE Id = '{!$User.Id}'", {
    onSuccess : success, onFailure : failure});
    function success(result) {
        var it = new sforce.QueryResultIterator(result);
        while(it.hasNext()){
        var record = it.next();
        console.log(record.Name + " -- " + record.Id);
        }
    }
    function failure(error) {
        console.log("An error has occurred " + error);
    }

    </script>
  <apex:form >
      <apex:pageBlock >
        <apex:commandButton value="get user info" onclick="chechDevMode();"/>
      </apex:pageBlock>
  </apex:form>
</apex:page>

---

one more simple solution that I like most using $user global variable

<apex:page>
<apex:form >
      <apex:pageBlock >
        <apex:commandButton value="get user info" onclick="chechDevMode();"/><br/>

        <h1 >{!$User.FirstName} {!$User.LastName}</h1> <br/>
        <h1 >{!$User.Id}</h1>
      </apex:pageBlock>
    </apex:form>
</apex:page>