Javascript console tricks for hacking the Platform

platform_hacking.js

// var allUsers = [];
// var allActivities = [];

var activitiesByClassroom = {};
forEach(allActivities, function (act) {
    if (act.activity_ordinal === "1") {
        activitiesByClassroom[act.assc_classroom_list[0]] = act;
    }
});

var injector = angular.element(document.body).injector();
var $pertsAjax = injector.get('$pertsAjax');
var $forEachAsync = injector.get('$forEachAsync');
var $getStore = injector.get('$getStore');

var numClasses = 0;
var classProgIndex = {};  // classId: int, sum of progress
var studentsByClass = {};

var sixtySixers = forEach(allUsers, function (user) {
    var classId = user.assc_classroom_list[0];
    var aggregationData = JSON.parse(user._aggregation_json);
    var progress = aggregationData[1].progress;

    // Sum student progress, grouped by classroom.
    if (classProgIndex[classId] === undefined) {
        classProgIndex[classId] = 0;
        numClasses += 1;
    }
    classProgIndex[classId] += progress;

    // Build an index of students by classroom.
    if (studentsByClass[classId] === undefined) {
        studentsByClass[classId] = [];
    }
    studentsByClass[classId].push(user);

    // Build a list of sixtySixers who need a completion code.
    if (aggregationData[1].progress === 66 &&
        !user.s1_status_code) {
        return user;
    }
});

var sixtySixerSuccess = {};
var sixtySixerErrors = {};
var numErrors = 0;
var fixSixtySix = function () {
    $forEachAsync(sixtySixers, function (user) {
        return $pertsAjax({
            url: '/api/put/user/' + user.id,
            params: {s1_status_code: 'COM'}
        }).then(function successCallback(user) {
            sixtySixerSuccess[user.id] = user;
        }, function errorCallback(message) {
            sixtySixerErrors[user.id] = message;
            numErrors += 1;
        });
    }, 'parallel');
};

var today = new Date();
var deletedClassrooms = [];
var deletedStudents = [];
var zeroProgClasses = forEach(classProgIndex, function (classId, sumProg) {
    var activity = activitiesByClassroom[classId];
    var scheduled = activity.scheduled_date ?
        Date.createFromString(activity.scheduled_date, 'local') :
        undefined;
    var datePassed = (today - scheduled) >= (Date.intervals.day * 14);
    if (scheduled && datePassed && sumProg === 0) {
        deletedClassrooms.push(classId);
        var students = forEach(studentsByClass[classId], function (user) {
            return user.id;
        });
        deletedStudents = deletedStudents.concat(students);
        return classId;
    }
});

var deleteZeroProgress = function () {
    // First delete students, then classrooms, just like the UI, to avoid
    // association problems.
    $forEachAsync(deletedStudents, function (userId) {
        return $pertsAjax({url: '/api/delete/' + userId});
    }, 'parallel').then(function () {
        $forEachAsync(deletedClassrooms, function (classId) {
            return $pertsAjax({url: '/api/delete/' + classId});
        }, 'parallel');
    });
};

var report = function () {
    console.log("Of a total of", allUsers.length, "users");
    console.log("...", sixtySixers.length, "were identified as 66%ers");
    console.log("...there were", numErrors, "errors while marking them complete. Details in `sixtySixerErrors`.");
    console.log("Of a total of", numClasses, "classrooms");
    console.log("...there were", deletedClassrooms.length, "zero-progress classes which were deleted (their students were also deleted). They are listed in `deletedClassrooms`, and they and all their students are listed together in `toDelete`.");
};