how to get this CAML query to work

Question

I have a javascript and i can't get the CAML or listitems.

//http://vadimtabakman.com/nintex-forms-multilingual-form.aspx

NWF$(document).ready(function () {
    var language = NWF$('#' + varLanguage);

    language.change(function() {
    //alert(language).val(); // else alert error message

    var languageValue = this.value.split(";#")[1];
    alert(languageValue);

    var clientContext = SP.ClientContext.get_current();    
    var oList = clientContext.get_web().get_lists().getByTitle('Survey Label Translation');

    var camlQuery = new SP.CamlQuery();
    alert('line 15');
    camlQuery.set_viewXml(
        '<View>' +
            '<Query>' +
                '<Where>' + 
                    '<Eq>' +
                        '<FieldRef Name=\'Language\'/><Value Type=\'Choice\'>' + Spanish + '</Value>' +
                    '</Eq>' +
                '</Where>' +
            '</Query>' +
        '</View>'
        );  
    alert('line 26');
    this.collListItems = oList.getItems(camlQuery);
    clientContext.load(collListItems);  
    alert('line 30');
    alert(collListItems.status);
    if (collListItems.status == 200)
     {
       var rows = collListItems.responseXML.getElementsByTagName('z:row');

       for(x=0; x < rows.length; x++)
       {
         var listLabelID = rows[x].getAttribute('ows_Title'); // query field + ows prefix
         var listTranslation = rows[x].getAttribute('ows_Translation'); // query field + ows prefix
         translations[listLabelID] = listTranslation;
         var node = NWF$('.' + listLabelID).find('.nf-label-control');
         node.text(listTranslation);
       }
     }
     else
     {
       alert('There was an error: ' + collListItems.statusText); // else alert error message
     }


    });
});

Answer 1

the filter is confusing. although the field type is choice you have change it to Text like below and wala

 '<FieldRef Name=\'Language\'/><Value Type=\'Text\'>' + languageValue + '</Value>' +

Answer 2

I see a couple things in there...

First of all, I'm surprised you're not getting an error message Spanish is not defined.

In your CAML code, you have the word "Spanish", outside of quotes, so it's not being treated as a string, it would be treated as a variable name.

I think maybe what you want in there is:

'<FieldRef Name=\'Language\'/><Value Type=\'Choice\'>' + languageValue + '</Value>' +

Secondly, although you build up your query and request for stuff from SharePoint, you never actually send off the query to the server to get processed. After you do context.load(stuffYouWant) you still have to context.executeQueryAsync() to send the request to the server.

Keep in mind executeQueryAsync takes two arguments - the success callback and the failure callback.

Check out this documentation on executeQueryAsync and this other example of how to retrieve list items.