Initial project import: Flask app, templates, init script, README
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.gitignore
vendored
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.gitignore
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# Virtual environment
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.venv/
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# SQLite DB
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anmeldung.db
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# Python caches
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__pycache__/
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*.pyc
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# Editor settings
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.vscode/
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.idea/
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# OS files
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.DS_Store
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25
README.md
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README.md
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# Anmeldung_v2
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Kleine Flask-Webapp, um einen papierbasierten Anmeldebogen durch ein Formular zu ersetzen und die Eingaben in einer SQLite-Datenbank zu speichern.
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Installieren:
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```bash
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python3 -m venv .venv
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source .venv/bin/activate
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pip install -r requirements.txt
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```
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DB initialisieren und Beispiel-Fragen anlegen:
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```bash
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python init_db.py
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```
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App starten:
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```bash
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python app.py
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```
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Das Formular ist dann unter http://127.0.0.1:5000/ erreichbar.
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116
app.py
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app.py
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from flask import Flask, render_template, request, redirect, url_for
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from flask_sqlalchemy import SQLAlchemy
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import os
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import re
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BASE_DIR = os.path.dirname(os.path.abspath(__file__))
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DB_PATH = os.path.join(BASE_DIR, 'anmeldung.db')
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app = Flask(__name__)
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app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{DB_PATH}'
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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db = SQLAlchemy(app)
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class Adresse(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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vorname = db.Column(db.String(100), nullable=False)
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nachname = db.Column(db.String(100), nullable=False)
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strasse = db.Column(db.String(200), nullable=False)
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hausnummer = db.Column(db.String(50), nullable=True)
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plz = db.Column(db.String(20), nullable=False)
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ort = db.Column(db.String(100), nullable=False)
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land = db.Column(db.String(50), default='Deutschland')
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telefon_vorwahl = db.Column(db.String(20))
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telefon_nummer = db.Column(db.String(50))
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email = db.Column(db.String(200))
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class Frage(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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text = db.Column(db.String(500), nullable=False)
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class Antwort(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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adresse_id = db.Column(db.Integer, db.ForeignKey('adresse.id'), nullable=False)
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frage_id = db.Column(db.Integer, db.ForeignKey('frage.id'), nullable=False)
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text = db.Column(db.String(1000), nullable=True)
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@app.route('/', methods=['GET', 'POST'])
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def index():
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if request.method == 'POST':
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# Adresse speichern
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vorname = request.form.get('vorname', '').strip()
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nachname = request.form.get('nachname', '').strip()
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strasse = request.form.get('strasse', '').strip()
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hausnummer = request.form.get('hausnummer', '').strip()
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plz = request.form.get('plz', '').strip()
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ort = request.form.get('ort', '').strip()
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land = request.form.get('land', 'Deutschland').strip()
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telefon_vorwahl = request.form.get('telefon_vorwahl', '').strip()
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telefon_nummer = request.form.get('telefon_nummer', '').strip()
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email = request.form.get('email', '').strip()
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# server-side E-Mail Validierung (einfache Prüfung)
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errors = {}
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email_re = re.compile(r"[^@]+@[^@]+\.[^@]+")
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if email:
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if not email_re.match(email):
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errors['email'] = 'Ungültige E-Mail-Adresse'
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# PLZ Validierung: genau 5 Ziffern
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if plz:
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if not re.fullmatch(r"\d{5}", plz):
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errors['plz'] = 'Postleitzahl muss genau 5 Ziffern haben'
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if errors:
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fragen = Frage.query.all()
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# pass form data back to template so fields are preserved
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form = request.form.to_dict()
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return render_template('index.html', fragen=fragen, errors=errors, form=form)
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adresse = Adresse(
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vorname=vorname,
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nachname=nachname,
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strasse=strasse,
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hausnummer=hausnummer,
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plz=plz,
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ort=ort,
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land=land,
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telefon_vorwahl=telefon_vorwahl,
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telefon_nummer=telefon_nummer,
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email=email,
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)
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db.session.add(adresse)
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db.session.commit()
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# Antworten speichern
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fragen = Frage.query.all()
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for frage in fragen:
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key = f'frage_{frage.id}'
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antwort_text = request.form.get(key, '').strip()
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antwort = Antwort(adresse_id=adresse.id, frage_id=frage.id, text=antwort_text)
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db.session.add(antwort)
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db.session.commit()
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# Nach erfolgreichem Speichern weiterleiten
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return redirect(url_for('danke', id=adresse.id))
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# GET: Formular anzeigen
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fragen = Frage.query.all()
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return render_template('index.html', fragen=fragen)
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@app.route('/danke')
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def danke():
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id = request.args.get('id')
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adresse = Adresse.query.get(id)
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return render_template('danke.html', adresse=adresse)
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if __name__ == '__main__':
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# Ensure DB exists
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if not os.path.exists(DB_PATH):
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db.create_all()
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app.run(debug=True)
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24
init_db.py
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init_db.py
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from app import app, db, Frage
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def init_db():
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# Ensure we run DB commands inside the Flask application context
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with app.app_context():
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db.drop_all()
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db.create_all()
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sample = [
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'Haben Sie besondere Ernährungsbedürfnisse?',
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'Benötigen Sie eine Übernachtung?',
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'Möchten Sie unseren Newsletter erhalten?'
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]
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for text in sample:
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f = Frage(text=text)
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db.session.add(f)
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db.session.commit()
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print('DB initialisiert und Beispiel-Fragen angelegt.')
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if __name__ == '__main__':
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init_db()
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2
requirements.txt
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2
requirements.txt
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Flask>=2.0
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Flask-SQLAlchemy>=3.0
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17
templates/danke.html
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templates/danke.html
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<!doctype html>
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<html lang="de">
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<head>
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<meta charset="utf-8">
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<title>Danke</title>
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</head>
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<body>
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<h1>Danke für Ihre Anmeldung</h1>
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{% if adresse %}
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<p>Vielen Dank, {{ adresse.vorname }} {{ adresse.nachname }}. Ihre Daten wurden gespeichert.</p>
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<p>Adresse: {{ adresse.strasse }}{% if adresse.hausnummer %} {{ adresse.hausnummer }}{% endif %}, {{ adresse.plz }} {{ adresse.ort }}</p>
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{% else %}
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<p>Eintrag gespeichert.</p>
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{% endif %}
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<p><a href="/">Zurück zum Formular</a></p>
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</body>
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</html>
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40
templates/index.html
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templates/index.html
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<!doctype html>
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<html lang="de">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Anmeldebogen</title>
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<style>label{display:block;margin-top:8px}</style>
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</head>
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<body>
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<h1>Anmeldebogen</h1>
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<form method="post">
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<fieldset>
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<legend>Persönliche Daten</legend>
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<label>Vorname <input name="vorname" required value="{{ form.vorname if form and form.vorname }}"></label>
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<label>Nachname <input name="nachname" required value="{{ form.nachname if form and form.nachname }}"></label>
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<label>Straße <input name="strasse" required value="{{ form.strasse if form and form.strasse }}"></label>
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<label>Hausnummer <input name="hausnummer" value="{{ form.hausnummer if form and form.hausnummer }}"></label>
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<label>PLZ <input name="plz" required maxlength="5" pattern="\d{5}" title="5-stellige PLZ" value="{{ form.plz if form and form.plz }}"> {% if errors and errors.plz %}<strong style="color:red">{{ errors.plz }}</strong>{% endif %}</label>
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<label>Ort <input name="ort" required value="{{ form.ort if form and form.ort }}"></label>
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<label>Land <input name="land" value="{{ form.land if form and form.land else 'Deutschland' }}"></label>
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<label>Telefon Vorwahl <input name="telefon_vorwahl" value="{{ form.telefon_vorwahl if form and form.telefon_vorwahl }}"></label>
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<label>Telefon Nummer <input name="telefon_nummer" value="{{ form.telefon_nummer if form and form.telefon_nummer }}"></label>
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<label>E-Mail <input name="email" type="email" value="{{ form.email if form and form.email }}"> {% if errors and errors.email %}<strong style="color:red">{{ errors.email }}</strong>{% endif %}</label>
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</fieldset>
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{% if fragen %}
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<fieldset>
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<legend>Fragen</legend>
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{% for frage in fragen %}
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<label>{{ frage.text }}
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<input name="frage_{{ frage.id }}">
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</label>
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{% endfor %}
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</fieldset>
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{% endif %}
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<p><button type="submit">Absenden</button></p>
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</form>
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</body>
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</html>
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