How to enableMajor? - list

Question

How could I enable Major versioning on "Pages" list? My code is not working and I don't get any errors. Any suggestions?....
_spBodyOnLoadFunctionNames.push(onPageLoad());
function onPageLoad() {
ExecuteOrDelayUntilScriptLoaded(enableMajor, 'SP.js')
}
function enableMajor() {
var ctx = new SP.ClientContext.get_current();
var list = ctx.get_web().get_lists().getByTitle('Pages');
ctx.load(list);
ctx.executeQueryAsync(
function () {
list.enableMajor = true;
},
function (sender, args) {
console.log('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
);
}
UPDATE 06-15
====---------------
Major version will not set? i dont why it is not setted? Any suggestions?
<script>
var list;
function getPublishingPages(success, error) {
var ctx = SP.ClientContext.get_current();
list = ctx.get_web().get_lists().getByTitle('Pages');
var items = list.getItems(SP.CamlQuery.createAllItemsQuery());
ctx.load(items, 'Include(File)');
list.set_e
ctx.executeQueryAsync(function () {
success(items);
},
error);
}
SP.SOD.executeFunc('SP.js', 'SP.ClientContext', function () {
getPublishingPages(printPagesInfo, logError);
});
function printPagesInfo(pages) {
pages.get_data().forEach(function (item) {
var file = item.get_file();
var pageStatus = file.get_level() === SP.FileLevel.published ? 'published' : 'not published';
alert(String.format('Page {0} is {1}', file.get_name(), pageStatus));
list.set_enableVersioning(true);
list.update();
alert('Major versioning enabled');
});
}
function logError(sender, args) {
alert('An error occured: ' + args.get_message());
}
</script>

Answer 1

In order to enable Create major versions the following steps should be performed:
set SP.List.enableVersioning property to true
call SP.List.update Method to update the list
Example
function enableListVersioning(listTitle,success,error) {
var ctx = SP.ClientContext.get_current();
var list = ctx.get_web().get_lists().getByTitle(listTitle);
list.set_enableVersioning(true);
list.update();
ctx.executeQueryAsync(
function () {
success();
},
error);
}
//usage
enableListVersioning('Pages',
function(){
console.log('Versioning is enabled');
},
function(sender,args){
console.log('An error occured: ' + args.get_message());
});