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Automate price calculation for Charging Session Edit #757

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Automate price calculation for Charging Session Edit #757

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9f29b45
Automate price calculation for Charging Session Edit
akahl Dec 3, 2025
781c0f2
Bugfix: Output des Cent-Betrages gerundet
akahl Dec 7, 2025
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47 changes: 46 additions & 1 deletion vwsfriend/vwsfriend/ui/templates/database/charging_session_edit.html
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,51 @@ <h1>{% block title %}{% if form and form.id.data %}Edit settings for {% else %}A

{% if form %}
<div class="form-wrapper">
<script>
$(document).ready(function() {
// Selektoren für die Input-Felder
const $pricePerKwh = $('#pricePerKwh_ct');
const $realChargedKwh = $('#realCharged_kWh');
const $realCost = $('#realCost_ct');

/**
* Berechnet die Gesamtkosten (als gerundete Ganzzahl) basierend auf
* Preis pro kWh und geladener kWh.
*/
function calculateRealCost() {
// Bereinigen der Werte (entfernt Leerzeichen)
const pricePerKwhString = $pricePerKwh.val().trim();
const realChargedKwhString = $realChargedKwh.val().trim();

// Prüfen, ob beide Felder nicht leer sind
if (pricePerKwhString === '' || realChargedKwhString === '') {
return;
}

// Konvertieren in Zahlen
const price = parseFloat(pricePerKwhString);
const kwh = parseFloat(realChargedKwhString);

// Prüfen, ob die konvertierten Werte gültige Zahlen (nicht NaN) und nicht negativ sind
if (isNaN(price) || isNaN(kwh) || price < 0 || kwh < 0) {
return;
}

// Multiplikation der Werte
const result = price * kwh;

// **SCHLÜSSELÄNDERUNG:** Runden des Ergebnisses auf die nächste ganze Zahl
const roundedResult = Math.round(result);

// Das gerundete Ergebnis in das Zielfeld schreiben
$realCost.val(roundedResult);
}

// Event-Listener für beide Felder
$pricePerKwh.on('keyup change', calculateRealCost);
$realChargedKwh.on('keyup change', calculateRealCost);
});
</script>
<form method="POST">
{{ form.csrf_token }}

Expand Down Expand Up @@ -369,4 +414,4 @@ <h1>{% block title %}{% if form and form.id.data %}Edit settings for {% else %}A
</form>
</div>
{% endif %}
{% endblock %}
{% endblock %}