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survey.js
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survey.js
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const Sequelize = require('sequelize')
const escapeHtml = require('escape-html')
const cutoff = '2024-10-20'
module.exports = (App) => {
App.express.get('/survey', async (req, res) => {
if (!req.user || !req.user.name == 'editor')
return res.send('Zugriff nur für Editor')
const entries = (
await App.db.models.KVPair.findAll({
where: {
key: {
[Sequelize.Op.like]: 'survey_v1_%',
},
updatedAt: {
[Sequelize.Op.gte]: new Date(cutoff),
},
},
raw: true,
})
).map((raw) => {
const parts = raw.key.split('_')
const id = parseInt(parts[2])
const obj = JSON.parse(raw.value)
return {
userId: id,
obj,
ts: parseInt(parts[3]),
}
})
entries.sort((a, b) => b.ts - a.ts)
const userIndex = {}
void (
await App.db.models.User.findAll({
where: { id: entries.map((e) => e.userId) },
raw: true,
})
).forEach((user) => {
userIndex[user.id] = {
name: user.name,
score: user.score,
createdAt: user.createdAt,
}
})
let ENT = entries.slice()
ENT.reverse()
const userIds = new Set()
ENT = ENT.filter((entry) => {
if (userIds.has(entry.userId)) {
return false
}
userIds.add(entry.userId)
return entry.obj && entry.obj.agree == 'yes'
})
// Helper function to calculate mean
function calculateMean(values) {
const sum = values.reduce((acc, val) => acc + val, 0)
return (sum / values.length).toLocaleString('de-DE')
}
// Helper function to calculate frequency of each Likert scale (1-5)
function calculateFrequency(values) {
const frequency = { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0 }
values.forEach((val) => {
frequency[val]++
})
return frequency
}
// Extract values for interest, challenge, and fun
const interests = ENT.map((entry) => parseInt(entry.obj.interest))
const challenges = ENT.map((entry) => parseInt(entry.obj.challenge))
const funs = ENT.map((entry) => parseInt(entry.obj.fun))
// Calculate means
const meanInterest = calculateMean(interests)
const meanChallenge = calculateMean(challenges)
const meanFun = calculateMean(funs)
// Calculate frequencies
const freqInterest = calculateFrequency(interests)
const freqChallenge = calculateFrequency(challenges)
const freqFun = calculateFrequency(funs)
// Generate HTML output
const likert = `
<table class="table" style="margin-top:24px;">
<thead>
<tr>
<th>Aspekt</th>
<th>Mittelwert</th>
<th>Häufigkeit (1)</th>
<th>Häufigkeit (2)</th>
<th>Häufigkeit (3)</th>
<th>Häufigkeit (4)</th>
<th>Häufigkeit (5)</th>
</tr>
</thead>
<tr>
<td>Interesse</td>
<td>${meanInterest}</td>
<td>${freqInterest[1]}</td>
<td>${freqInterest[2]}</td>
<td>${freqInterest[3]}</td>
<td>${freqInterest[4]}</td>
<td>${freqInterest[5]}</td>
</tr>
<tr>
<td>Herausforderung</td>
<td>${meanChallenge}</td>
<td>${freqChallenge[1]}</td>
<td>${freqChallenge[2]}</td>
<td>${freqChallenge[3]}</td>
<td>${freqChallenge[4]}</td>
<td>${freqChallenge[5]}</td>
</tr>
<tr>
<td>Spaß</td>
<td>${meanFun}</td>
<td>${freqFun[1]}</td>
<td>${freqFun[2]}</td>
<td>${freqFun[3]}</td>
<td>${freqFun[4]}</td>
<td>${freqFun[5]}</td>
</tr>
</table>
`
function generateBinaryAspectReport(entries) {
// Initialisiere die Zähler für Ja/Nein für jeden Aspekt
const counts = {
learnmore: { yes: 0, no: 0 },
morecreative: { yes: 0, no: 0 },
easystart: { yes: 0, no: 0 },
recommend: { yes: 0, no: 0 },
}
// Durchlaufe alle Einträge und zähle die Antworten
entries.forEach((entry) => {
const obj = entry.obj
if (obj.learnmore === 'yes') counts.learnmore.yes++
else counts.learnmore.no++
if (obj.morecreative === 'yes') counts.morecreative.yes++
else counts.morecreative.no++
if (obj.easystart === 'yes') counts.easystart.yes++
else counts.easystart.no++
if (obj.recommend === 'yes') counts.recommend.yes++
else counts.recommend.no++
})
// Generiere die HTML-Tabelle
let html = `
<table class="table" style="margin-top:36px;">
<thead>
<tr>
<th>Aspekt</th>
<th>Anzahl "Nein"</th>
<th>Anzahl "Ja"</th>
</tr>
</thead>
<tr>
<td>Mehr Lernen von Hacking</td>
<td>${counts.learnmore.no}</td>
<td>${counts.learnmore.yes}</td>
</tr>
<tr>
<td>Kreativer</td>
<td>${counts.morecreative.no}</td>
<td>${counts.morecreative.yes}</td>
</tr>
<tr>
<td>Start ohne Vorwissen möglich</td>
<td>${counts.easystart.no}</td>
<td>${counts.easystart.yes}</td>
</tr>
<tr>
<td>Weiterempfehlung</td>
<td>${counts.recommend.no}</td>
<td>${counts.recommend.yes}</td>
</tr>
</table>
`
return html
}
function generateFreitextReport(entries) {
// Listen für die Freitext-Antworten
let goodTexts = []
let improveTexts = []
// Durchlaufen der Einträge und Sammeln der Freitext-Antworten
entries.forEach((entry) => {
const obj = entry.obj
// Sammeln der 'good' Antworten, falls vorhanden
if (obj.good) {
goodTexts.push(escapeHtml(obj.good))
}
// Sammeln der 'improve' Antworten, falls vorhanden
if (obj.improve) {
improveTexts.push(escapeHtml(obj.improve))
}
})
goodTexts.reverse()
improveTexts.reverse()
// Generieren der HTML-Ausgabe für die Freitext-Antworten
let html = `<div style="margin-top:36px;">`
// Freitext-Antworten für 'good' hinzufügen, falls vorhanden
if (goodTexts.length > 0) {
html += `
<h3>Freitext-Antworten "Gut":</h3>
<ul>
${goodTexts.map((text) => `<li>${text}</li>`).join('')}
</ul>
`
} else {
html += `<h5>Keine Freitext-Antworten zu "Gut" vorhanden.</h5>`
}
// Freitext-Antworten für 'improve' hinzufügen, falls vorhanden
if (improveTexts.length > 0) {
html += `
<h3>Freitext-Antworten "Verbesserung":</h3>
<ul>
${improveTexts.map((text) => `<li>${text}</li>`).join('')}
</ul>
`
} else {
html += `<h5>Keine Freitext-Antworten zu "Verbesserung" vorhanden.</h5>`
}
html += `</div>`
return html
}
res.send(`
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8">
<link href="/theme/darkly.min.css" rel="stylesheet">
<title>Umfrage Auswertung</title>
</head>
<body>
<div class="container-fluid">
<h1 class="my-5">Umfrage Auswertung</h1>
<h2>Auswertung</h2>
<p>Einträge: ${ENT.length}</p>
${likert}
${generateBinaryAspectReport(ENT)}
${generateFreitextReport(ENT)}
<h2 style="margin-top:32px;">Einzelansicht</h2>
${entries
.map((entry) => {
return `<p>${new Date(
parseInt(entry.ts)
).toLocaleString()} / ${escapeHtml(
userIndex[entry.userId].name
)} (${userIndex[entry.userId].score})<br />Interesse: ${
entry.obj.interest
}, Herausforderung: ${entry.obj.challenge}, Spaß: ${
entry.obj.fun
}, mehr Lernen: ${entry.obj.learnmore}, kreativer: ${
entry.obj.morecreative
}, ohne Vorwissen: ${entry.obj.easystart}, empfehlen: ${
entry.obj.recommend
}, positiv: "${escapeHtml(
entry.obj.good || '--'
)}", negativ: "${escapeHtml(
entry.obj.improve || '--'
)}", Zustimmung: <strong>${entry.obj.agree}</strong></p>`
})
.join('')}
</div>
</body>
</html>
`)
})
}