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/*
* This script with disable / reset the late policy status in the new Canvas Gradebook
* It does not have a slick interface yet, but I want to get it out there for people to use
* See the instructions in the Canvas Community
* https://community.canvaslms.com/people/james@richland.edu/blog/2019/01/10/removing-missing-and-late-labels
* You may want to edit the config section before executing this script
*/
(function() {
'use strict';
const config = {
'missing' : false, // disable Missing labels, can be done at any time
'late' : true, // remove late labels, only affects things after submissions
'reset' : false, // reset missing or late status to Canvas default
};
const courseRegex = new RegExp('^/courses/(\\d+)/(assignments|quizzes|discussion_topics)(?:/(\\d+))?');
const courseMatch = courseRegex.exec(window.location.pathname);
if (!courseMatch) {
return;
}
const courseId = courseMatch[1];
const contextType = courseMatch[2];
const contextId = typeof courseMatch[3] === 'undefined' ? false : courseMatch[3];
let url = '/api/v1/courses/' + courseId;
switch (contextType) {
case 'assignments':
if (contextId) {
url += '/assignments/' + contextId;
} else {
url += '/assignment_groups?include[]=assignments'
+ '&exclude_response_fields[]=rubric&exclude_response_fields[]=description&override_assignment_dates=false';
}
break;
case 'discussion_topics':
if (contextId) {
url += '/discussion_topics/' + contextId;
} else {
url += '/discussion_topics?exclude_assignment_descriptions=true&plain_messages=true&per_page=30';
}
break;
case 'quizzes':
if (contextId) {
url += '/quizzes/' + contextId;
} else {
url += '/quizzes?per_page=30';
}
break;
}
console.log('Beginning to set labels.');
getAPI(url, 'assignments').then(function() {
console.log('Finished setting labels.');
});
function getCookie(name) {
return document.cookie.split(';').reduce(function(a, c) {
const d = c.trim().split('=', 2);
return d[0] === name ? decodeURIComponent(d[1]) : a;
}, '');
}
function putAPI(url, data) {
data.authenticity_token = getCookie('_csrf_token');
const options = {
'method' : 'PUT',
'headers' : {
'content-type' : 'application/json',
'accept' : 'application/json'
},
'body' : JSON.stringify(data),
'timeout' : 3000
};
return fetch(url, options);
}
function getAPI(url, handler) {
const options = {
'method' : 'GET',
'headers' : {
'content-type' : 'application/json',
'accept' : 'application/json'
},
'timeout' : 3000
};
const linkRegex = new RegExp('<(.*?)>; rel="next"');
let nextUrl = null;
return fetch(url, options).then(function(res) {
if (res.ok) {
const linkHeader = res.headers.get('link');
const links = linkRegex.exec(linkHeader);
if (links) {
nextUrl = links[1];
}
return res.json();
} else {
return Promise.reject(res.status);
}
}).then(function(json) {
return processData(json, handler);
}).then(function() {
return nextUrl ? getAPI(nextUrl, handler) : Promise.resolve(true);
});
}
function processData(data, handler) {
switch (handler) {
case 'assignments':
return processAssignments(data);
break;
case 'submissions':
return processSubmissions(data);
break;
}
return Promise.resolve(true);
}
function processSubmissions(data) {
const P = [];
let status;
for (let i = 0; i < data.length; i++) {
const submission = data[i];
status = false;
if (submission.excused) {
// Do not do anything with excused submissions
continue;
}
if (config.reset) {
if (submission.late_policy_status === 'none') {
const isMissing = submission.submitted_at === null;
const isLate = (submission.cached_due_date && submission.submitted_at && submission.submitted_at > submission.cached_due_date) ? true
: false;
if ((config.missing && isMissing) || (config.late && isLate)) {
status = null;
}
}
} else if (submission.late_policy_status === null) {
if ((config.missing && !submission.late) || (config.late && submission.late)) {
status = 'none';
}
}
if (status !== false) {
const parms = {
'submission' : {
'late_policy_status' : status
}
};
const url = '/api/v1/courses/' + courseId + '/assignments/' + submission.assignment_id + '/submissions/'
+ submission.user_id;
P.push(putAPI(url, parms));
}
}
return Promise.all(P);
}
function processAssignments(data) {
const assignmentIds = [];
let id = null;
if (!Array.isArray(data)) {
id = checkAssignment(data);
if (id) {
assignmentIds.push(id);
}
} else {
if (contextType === 'assignments') {
data.forEach(function(group) {
group.assignments.forEach(function(a) {
id = checkAssignment(a);
if (id) {
assignmentIds.push(id);
}
});
});
} else {
data.forEach(function(a) {
id = checkAssignment(a);
if (id) {
assignmentIds.push(id);
}
});
}
}
return getSubmissions(assignmentIds);
}
function checkAssignment(a) {
const types = [ 'none', 'not_graded', 'on_paper', 'wiki_page', 'external_tool' ];
let valid = false;
if (contextId === false || (contextId == a.id)) {
let dueAt = false;
let assignmentId = false;
let extra = true;
switch (contextType) {
case 'assignments':
assignmentId = a.id;
dueAt = a.due_at;
extra = !a.submission_types.some(function(t) {
return types.indexOf(t) > -1;
})
break;
case 'discussion_topics':
assignmentId = a.assignment_id;
dueAt = typeof a.assignment !== 'undefined' ? a.assignment.due_at : false;
break;
case 'quizzes':
assignmentId = a.assignment_id;
dueAt = a.due_at;
break;
}
valid = (dueAt && assignmentId && extra) ? assignmentId : false;
}
return valid;
}
function getSubmissions(assignmentIds) {
const P = [];
if (assignmentIds.length) {
let n = assignmentIds.length;
let m = Math.ceil(n / 4);
if (m > 10 || n <= 10) {
m = 10;
}
let a = 0;
while (a < n) {
let b = a + m > n ? n : a + m;
const url = '/api/v1/courses/' + courseId + '/students/submissions' + '?student_ids[]=all&enrollment_state=active'
+ '&exclude_response_fields[]=attachments&exclude_response_fields[]=discussion_entries'
+ '&exclude_response_fields[]=preview_url&per_page=40&assignment_ids[]='
+ assignmentIds.slice(a, b).join('&assignment_ids[]=');
P.push(getAPI(url, 'submissions'));
a = b;
}
}
return Promise.all(P);
}
})();
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