Ross
142 lines
4.0 KiB
JavaScript
142 lines
4.0 KiB
JavaScript
import * as helper from "./helpers.js";
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/**
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* Submits answers
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*/
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export function submitAnswers(exam_details, db, config) {
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getJsonAnswers(exam_details, db)
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.then((a) => {
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let json = {
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eid: exam_details.eid,
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answers: JSON.stringify(a),
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};
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postAnswers(json, config, exam_details);
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})
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.catch((e) => {
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alert("No answers to submit");
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});
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}
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/**
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* Gets a json representation of answers
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* @return {JSON} - answers
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*/
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export function getJsonAnswers(exam_details, db) {
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return db.answers
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.where({
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aid: exam_details.aid,
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cid: exam_details.cid,
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eid: exam_details.eid,
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})
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.toArray();
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}
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/**
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* Posts answers to url
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* @param {*} ans - json representation of answers
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*/
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export function postAnswers(ans, config, exam_details) {
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$("#progress").html("Submitting answers...");
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$.post(config.exam_submit_url, ans, null, "json")
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.done((data) => {
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console.log("returned data", data);
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if (data.success) {
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$("#submit-error-overlay").remove();
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if (data.question_count == window.number_of_questions) {
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let ret = confirm(
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`${data.question_count} answers sucessfully submitted. Click OK to finish the exam.`
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);
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if (ret) {
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window.review = true;
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window.saveSession();
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if (config.exam_results_url != "") {
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let url = config.exam_results_url;
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if (exam_details.cid != "") {
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url = url + exam_details.cid;
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}
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$("#options-link")
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.empty()
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.append(
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`<a href="${url}" target="_blank"><div class="packet-button">Results and answers</div></a>`
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);
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}
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$("#options-panel").show();
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} else {
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}
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} else {
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alert(`${data.question_count} answers sucessfully submitted.`);
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}
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} else {
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submissionError(data, ans);
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}
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})
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.fail((e) => {
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// Will occur with server error such as 500
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console.log("error", e);
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submissionError(e, ans);
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});
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// $.post( "http://localhost:8000/submit_answers", JSON.stringify(ans));
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}
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function submissionError(data, ans) {
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// error will not be defined with server errors
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if (data.error != undefined) {
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alert(`Error submitting answers: ${data.error}`);
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} else {
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alert(`Error submitting answers`);
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}
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var docHeight = $(document).height();
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$("body").append(
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`<div id='submit-error-overlay'><span style='color: white'><p>An error has occured when submit your answers. A copy of your answers are displayed below, you may wish to save a copy. Please try submitting again or refresh this page to continue.</p>${JSON.stringify(
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ans
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)}</span></div>`
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);
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$("#nav-submit-button").prependTo("#submit-error-overlay");
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$("#submit-error-overlay").height(docHeight).css({
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opacity: 0.9,
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position: "absolute",
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top: 0,
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left: 0,
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"background-color": "black",
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width: "100%",
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"user-select": "text",
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"-moz-user-select": "text",
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"-webkit-user-select": "text",
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"z-index": 5000,
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});
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}
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export function getQuestion(url, question_number, question_total) {
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console.log("Downloading question ", url, question_number, question_total);
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return $.ajax({
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dataType: "json",
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url: url,
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progress: function (e) {
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$("#progress").html(
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`Downloading question [${question_number}/${question_total}]<br/>This file is compressed (no size available)`
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);
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if (e.lengthComputable) {
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var completedPercentage = Math.round((e.loaded * 100) / e.total);
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$("#progress").html(
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`Downloading question [${question_number}/${question_total}]<br/>${completedPercentage}%<br/>${helper.formatBytes(
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e.total
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)}`
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);
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}
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},
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error: (jqXHR, textStatus, errorThrown) => {
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console.log("error downlading", jqXHR, textStatus, errorThrown);
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},
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//success: function (data) {
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// strReturn = data;
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//},
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//async: false,
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});
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}
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