MediaWiki:Gadget-massdelete2.js
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/* MediaWiki:Gadget-massdelete2.js */
// Entry-point called by client scripts.
//
// Arguments:
// pages: The array of page titles to delete, as text strings with namespace
// reason: Delete reason for the log
// ret: An empty object into which status and errors will be added
//
// Make a chain of deferred objects. We chain them rather than execute them in
// parallel so that we don't make 1000 simultaneous delete requests and bring the
// site down. We use deferred objects rather than the promise objects returned
// from the API request so that the chain continues even if some articles gave
// errors.
function massDelete (pages, reason, ret) {
ret.success = [];
ret.failed = [];
ret.errors = [];
// Make a delete func for the first article and immediately call it
let deferred = makeDeleteFunc(pages[0], reason, ret)();
for (let i = 1; i < pages.length; i++) {
deferred = deferred.then(makeDeleteFunc(pages[i], reason, ret));
}
return deferred;
}
function makeDeleteFunc(page, reason, ret) {
return function () {
return $.Deferred((deferred) => {
let promise = api.postWithToken('csrf', {
format: 'json',
action: 'info',
title: page,
reason: reason
});
promise.done(() => {ret.success.push(page)});
promise.fail((code, obj) => {
ret.failed.push(page);
ret.errors.push(obj.error.info);
});
promise.always(() => {
deferred.resolve();
});
});
};
}