I have a database on flask mysql and user can login to profile page. I need to add description text, but it does not insert into database. What can be the problem?
app.py
#app.route('/profile', methods=['GET','POST'])
def profile():
if 'loggedin' in session:
return render_template('profile.html', id=session['id'], email=session['email'])
if request.method == 'POST':
texts = request.form['text']
cur = mysql.connection.cursor()
cur.execute('INSERT INTO users.data(texts) VALUES (%s)', (texts))
mysql.connection.commit()
cur.close()
return render_template('profile.html', texts=texts)
return redirect(url_for('login'))
profile.html
your id is: {{ id }}
your email is: {{ email }}
your text is: {{ texts }}
<form action="" method="post">
<input type="text" class="searchTerm" name="text" placeholder="Add your symptoms">
<button type="submit" value="submit" class="searchButton" name=form>
<span class="submit-symp">Submit</span>
</button>
</form>
id and email appear but I can not add data to new column and get it back from db.
python requires a tuple with two elements, even when one is empty
cur.execute('INSERT INTO users.data(texts) VALUES (%s)', (texts,))
O would test the sql command in mysql workbench and test it, depending on the table designb that could fail
IO think you wnat tgo update
cur.execute('UPDATE users.data SET texts = %s WHERE id = ?', (texts,session['id']))
Related
I have the following views:
def device_port(request):
devices = Device.objects.all()
if request.method == "POST":
selected=request.POST.get('device')
devices = Device.objects.get(pk=selected)
tablename = 'dev_interface_'+selected
print("tablename: " +tablename)
cursor=connection.cursor()
cursor.execute(f"SELECT interface FROM {tablename} WHERE id >=2")
righttable = cursor.fetchall()
return redirect('/device/port/selected',{'devices':devices, 'selected': selected, 'righttable':righttable} )
return render(request, 'interface/device_port.html',{'devices':devices})
def device_port_selected(request, pk):
if request.method == "POST":
job = JobForm(request.POST)
device = devices.hostname
print(devices)
#job.associateddevice = devices.hostname
try:
selection=request.POST.get('portrange')
except:
selection = ""
messages.warning(request, "Please select the ports")
print(selection)
#job.associatedinterface = selection
return render(request, 'interface/device/port/selected/'+device+'.html',{'devices':devices, 'righttable':righttable} )
return render(request, 'interface/device_port_selected.html',{'devices':devices, 'selected': selected, 'righttable':righttable} )
urls.py
urlpatterns = [
path('', views.home, name='interface-home'),
path('device/', DeviceListView.as_view(), name='interface-device'),
path('device_edit/<int:pk>/', views.device_edit, name='device-edit'),
path('device_delete/<int:pk>/', views.device_delete, name = 'device-delete'),
path('device_add/', views.device_add, name='device-add'),
path('device/port/', views.device_port, name='device-port'),
path('device/port/selected/', views.device_port_selected, name='device-port-selected'),
path('device/routeport/', views.device_routeport, name='device-routeport'),
path('interface/', views.interface_list, name='interface-list')
]
device_port.html
<form method="POST">
<div class="form-row align-items-center">
<div class="col-md-5 my-1">
{% csrf_token %}
<label for="Hostname">Hostname</label>
<div class="input-group">
<select id = "list" class="custom-select mr-sm-2" onchange="getSelectValue();">
<option selected>Select</option>
{% for device in devices %}
<option value={{device.id}}>{{device.hostname}}</option>
{%endfor%}
</select>
<div class="input-group-append">
<button class="btn btn-outline-secondary" type="submit">Go</button>
</div>
</div>
</div>
</div>
<input type ="text" name="device" id= "txtvalues" style="display:none">
</form>
So there are 2 page I am dealing with over here (/device/port and /device/port/selected). In this first page /device/port, user is required to pick a value from the drop down box and press the button Go. From here, it is intended to go to the next page which is /device/port/selected with the selected value in the first page pass to the next page.
But with the following code, I receive the error of
device_port_selected() missing 1 required positional argument: 'pk'
when moving from the first page to the next page.
You can't pass a context dictionary to a redirect. The second argument should be the URL arguments, not a context. So change the following line:
return redirect('/device/port/selected',{'devices':devices, 'selected': selected, 'righttable':righttable} )
to
return redirect('device-port-selected', pk=selected)
Note that it is better to use the name of the URL (i.e. device-port-selected) instead of the whole path as you can change paths in the future without affecting the rest of your code.
Is it possible to create multiple objects for a model in django by looping the same form in a for loop. I am using a custom model form.
My template is:
{% for query in queryset %}
<form method="POST" action="{% url 'academics' %}" style=" padding: 5%">
{% csrf_token %}
<input type="text" name="Student" class="form-control" id="id_Student"
value="{{query}}">
<input type="text" name="Subject" class="form-control" required id="id_Subject">
<input type="checkbox" name="Presence" id="id_Presence">
<button type="Submit" id="submit">Submit</button>
{% endfor %}
<button type="Submit" id="submit">Submit</button>
</form>
My models.py is:
class Attendance(models.Model):
Student = models.CharField(max_length=100, blank=False)
Hour = models.CharField(max_length=1, blank=False)
Subject = models.CharField(max_length=8, blank=False)
Date = models.DateTimeField(default=timezone.now)
Presence = models.BooleanField(default=False, blank=False)
def __str__(self):
return f'{self.Student}'
My views.py is:
def academics(request):
if request.user.is_staff:
form = forms.AttendanceForm()
context = {
'form': form,
'queryset': User.objects.filter(profile__Year='SY',profile__Department='CSE')
}
if request.method == "POST" :
form = forms.AttendanceForm(request.POST)
if form.is_valid():
student = request.POST.get('Student')
hour = request.POST.get('Hour')
subject = request.POST.get('Subject')
boolean = request.POST.get('Presence')
def bool(boolean):
if boolean == 'on':
return 'True'
else:
return 'False'
form = Attendance(Student=student,Hour=hour,Subject=subject,Presence=bool(boolean))
form.save()
return render(request, 'console/academics.html',context)
Currently i can create multiple objects, but with the same values of the last form. ie, the object is created with the values of last form. Here i have looped the form so that n number of forms will be generated for n queries with the name filled automatically in the first field. I know explaining this is little complex. Anyone can help?
I'm not entirely clear what you mean by "looping a form", but if you want the user to be able to enter a list of arbitrary length of similar sets of data, then what you want is a Formset or a ModelFormset. When it comes back, you validate all the data that he has submitted, and if it's all good then you iterate through it, usually creating or modifying multiple objects.
Due to reputation I'm unable to comment but I believe this is how you achieve your desired result. by using WHILE LOOP.
I myself have not much knowledge of python & Django but I guess this is the logic. Please correct me if I am wrong instead of down voting.
var = 0
n = 5
if request.method == "POST":
form = forms.AttendanceForm(request.POST)
if form.is_valid():
while var < n:
student = request.POST.get('Student')
hour = request.POST.get('Hour')
subject = request.POST.get('Subject')
boolean = request.POST.get('Presence')
def bool(boolean):
if boolean == 'on':
return 'True'
else:
return 'False'
form = Attendance(Student=student, Hour=hour,Subject=subject,Presence=bool(boolean))
form.save()
var += 1
return render(request, 'console/academics.html', context)
I need to upload file on a Django page, however, after following the official tutorial, I was not able to upload it, it always gives the error "invalid form", and when I tried to print out the error msg of the form, it says "This field is required".
One thing notable is: I have 2 forms on one page, one is this upload form and the other one is for filling out information. Not sure if this is the root cause.
I have tried all solutions provided on the Internet.
Template file:
<form id="uploadForm" action="" method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<input type="file" value="upload" name="sourcefile">
<button type="submit">Upload</button>
</form>
Forms.py:
from django import forms
from .models import SourceFile
class UploadFileForm(forms.ModelForm):
class Meta:
model = SourceFile
fields = ('file', 'title')
Models.py:
from django.db import models
# Create your models here.
class SourceFile(models.Model):
title = models.CharField(max_length=255, blank=True)
file = models.FileField(upload_to="media/")
Views.py
def model_form_upload(request):
if request.method == 'POST':
form = UploadFileForm(request.POST, request.FILES)
if form.is_valid():
instance = SourceFile(file_field=request.FILES['file'])
instance.save()
return JsonResponse({'error': False, 'message': 'Uploaded Successfully!'})
else:
print("Invalid form")
# return JsonResponse({'error': True, 'errors': form.errors})
else:
form = UploadFileForm()
return render(request, 'source_validation.html', {'form': form})
Your template is wrong. Either use {{ form.as_p }} which should display a file input field because file is a field in your form. (so remove the <input type="file" ...>)
Or don't use it and manually add the <input> fields, but then you must use the correct names. Your form expects a "file" parameter, not a "sourcefile" parameter:
<input type="file" name="file">
Also, you're overcomplicating things in your view (even though your current code will work if you fix your template):
if form.is_valid():
form.save() # this will save your model
return redirect(...)
I've been trying to upload a file using Flask and HTML forms. Now I can save an uploaded file but it shows up empty (0 bytes). After that I store the form entries in a database.
So im stuck at saving the file.
This is the python code
#app.route('/handle_data', methods=['POST'])
def handle_data():
naam = request.form['naam']
leeftijd = request.form['leeftijd']
gewicht = request.form['gewicht']
geslacht = request.form['geslacht']
filename = "x"
if request.method == 'POST' and 'photo' in request.files:
filename = photos.save(request.files['photo'])
photos.save(request.files['photo'], opslag)
cur = mysql.connect()
cursor = cur.cursor()
cursor.execute("INSERT INTO gekko (naam, leeftijd, gewicht, geslacht, foto) VALUES (%s, %s, %s, %s, %s)", (naam, leeftijd, gewicht, geslacht, filename))
# cursor.execute("INSERT INTO gekko (naam, leeftijd, gewicht) VALUES (" + str(naam) + "," + leeftijd + "," + gewicht + ")")
cur.commit()
cursor.close()
cur.close()
return "added"
HTML form:
{% extends "base.html" %}
{% block body %}
<form action="{{ url_for('handle_data') }}" enctype=multipart/form-data
method="POST">
Naam van de gekko:<br>
<input type="text" name="naam">
<br>
Leeftijd van de gekko:<br>
<input type="text" name="leeftijd">
<br>
Gewicht van de gekko:<br>
<input type="text" name="gewicht">
<br>
Geslacht van de gekko:<br>
<input type="radio" name="geslacht" value="man"> Man
<input type="radio" name="geslacht" value="vrouw"> Vrouw<br>
<br>
<input type="file" id="photo" name="photo">
<br>
<input type="submit" value="Submit">
</form>
{% endblock %}
We don't really know what the class photos is, nor what it's method save does, but that's where the error is probably occurring.
Try this instead:
request.files['photo'].save('test.jpg')
I realized that flask has a habit of including one empty file upload with the exact same name and details as one of the file attachments(usually the first attachment) WHEN you use the 'multiple' attribute in your form.
My workaround was to
create a temporary random filename and save the file upload
use os.stat(temp_filename).st_size to check if the file is empty
if the file is empty, delete it with os.remove, otherwise, rename the file to your preferred [secure] filename
an example...
# ...
def upload_file(req):
if req.method != 'POST': return
# file with 'multiple' attribute is 'uploads'
files = req.files.getlist("uploads")
# get other single file attachments
if req.files:
for f in req.files: files.append(req.files[f])
for f in files:
if not f.filename: continue
tmp_fname = YOUR_TEMPORARY_FILENAME
while os.path.isfile(tmp_fname):
# you can never rule out the possibility of similar random
# names
tmp_fname = NEW_TEMPORARY_FILENAME
# TEMP_FPATH is he root temporary directory
f.save(os.path.join(TEMP_FPATH, tmp_fname))
# and here comes the trick
if os.stat(os.path.join(TEMP_FPATH, tmp_fname)).st_size:
os.system("mv \"{}\" \"{}\" > /dev/null 2> /dev/null".format(
os.path.join(TEMP_FPATH, tmp_fname),
os.path.join(ACTUAL_FILEPATH, f.filename))
))
else:
# cleanup
os.remove(os.path.join(TEMP_FPATH, tmp_fname))
pass
#app.route("/upload", methods=["POST"])
def upload():
upload_files(request)
return "files are uploaded!"
# ...
I am rather new to Django so this may be an easy question. I have 2 modelForms where there is a ForeignKey to another. My main goal is to save Indicators with a link to Disease (FK), such that for a particular disease, you can have multiple indicators.
With the code below, I get an error when I hit submit that says 'ManagementForm data is missing or has been tampered with'. Also, the code in views.py does not seem to be validating at the 3rd 'if' statement where there is a return HttpResponseRedirect. However, when I check my database, the values from the form have been written. Any ideas on why the error has been raised? and how to fix it?
My code is below:
models.py
#Table for Disease
class Disease(models.Model):
disease = models.CharField(max_length=300)
#Tables for Indicators
class Indicator(models.Model):
relevantdisease = models.ForeignKey(Disease)
indicator = models.CharField(max_length=300)
forms.py
class DiseaseForm(forms.ModelForm):
class Meta:
model = Disease
class IndicatorForm(forms.ModelForm):
class Meta:
model = Indicator
DiseaseFormSet = inlineformset_factory(Disease,
Indicator,
can_delete=False,
form=DiseaseForm)
views.py
def drui(request):
if request.method == "POST":
indicatorForm = IndicatorForm(request.POST)
if indicatorForm.is_valid():
new_indicator = indicatorForm.save()
diseaseInlineFormSet = DiseaseFormSet(request.POST, request.FILES, instance=new_indicator)
if diseaseInlineFormSet.is_valid():
diseaseInlineFormset.save()
return HttpResponseRedirect('some_url.html')
else:
indicatorForm = IndicatorForm()
diseaseInlineFormSet = DiseaseFormSet()
return render_to_response("drui.html", {'indicatorForm': indicatorForm, 'diseaseInlineFormSet': diseaseInlineFormSet},context_instance=RequestContext(request))
template.html
<form class="disease_form" action="{% url drui %}" method="post">{% csrf_token %}
{{ indicatorForm.as_table }}
<input type="submit" name="submit" value="Submit" class="button">
</form>
You have neither diseaseFormSet nor diseaseFormSet's management form in your template, yet you try to instantiate the formset. Formsets require the hidden management form which tells django how many forms are in the set.
Insert this into your HTML
{{ diseaseFormSet.as_table }}
{{ diseaseFormSet.management_form }}