Django Form Not Posting to SQL - python

I have a page where an item from a list nested within my form can be favorited, it redirects back to the same page following what should be an update to the database, then it shows a star next to the item. While this should work fine my form doesn't change the DB at all. I am confident it is not the html rendering since when I manually change the field in the admin panel it renders fine. What is causing this to not post?
view.py:
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse
from django.template import loader
from .models import Album, Song
# Create your views here.
def index(request):
all_albums = Album.objects.all()
template = loader.get_template('music/index.html')
context = {'all_albums' : all_albums,}
return render(request, 'music/index.html', context)
def detail(request, album_id):
album = get_object_or_404(Album, pk=album_id)
return render(request, 'music/detail.html', {'album' : album})
def favorite(request, album_id):
album = get_object_or_404(Album, pk=album_id)
print("favorite stuff happens here")
try:
selected_song = album.song_set.get(pk=int(request.POST['song']))
except (KeyError, Song.DoesNotExist):
return render(request, 'music/detail.html', {
'album' : album,
'error_message': 'Did not select a valid song'
})
else:
selected_song.favorite = True
selected_song.save()
return render(request, 'music/detail.html', {'album' : album})
<img src="{{album.album_logo}}">
<h1>{{album.album_title}} </h1>
<h2>{{album.artist}} </h2>
{% if error_message %}
<p><strong> {{error_message}} </strong></p>
{% endif %}
<form action="{% url 'music:favorite' album.id %}" method="post">
{% csrf_token %}
{% for song in album.song_set.all %}
<input type="radio" id="song{{forloop.counter}}" name="song" value="{{song.id}}" />
<label for="song{{forloop.counter}}">
<span>{{song.song_title}}
{% if song.is_favorite %}
<img src="http://i.imgur.com/b9b13Rd.png" />
{% endif %}
</span>
</label><br>
{% endfor %}
<input type="submit" value="Favorite">
</form>
model.py:
from django.db import models
# Create your models here.
class Album(models.Model):
artist = models.CharField(max_length=255)
album_title = models.CharField(max_length=255)
genre = models.CharField(max_length=255)
album_logo = models.CharField(max_length=255)
def __str__(self):
return self.album_title + ' -- ' + self.artist
class Song(models.Model):
# on delete this deletes this entry
album = models.ForeignKey(Album, on_delete=models.CASCADE)
file_type = models.CharField(max_length=4)
song_title = models.CharField(max_length=255)
is_favorite = models.BooleanField(default=False)
def __str__(self):
return self.song_title
urls.py:
from django.conf.urls import url
from . import views
app_name = 'music'
urlpatterns = [
# /music/
url(r'^$', views.index, name='index'),
# /music/<album_id>/
url(r'^(\d+)/$', views.detail, name='detail'),
# logic for favoriting adjusts model and redirects to same place
# /music/<album_id>/favorite
url(r'^(\d+)/favorite/$', views.favorite, name='favorite'),
]

Related

My comments are not being displayed in a django blog

I am trying to add a comment section to add a comment section to my blog detail using django but when i run my server i get no error in the development server and the comments are not being displayed. I added the comments from my admin site.
The snippet of my code is below.
views.py
from .models import Post
from django.utils import timezone
from .forms import PostForm, CommentsForm
from django.contrib.auth.decorators import user_passes_test
# Create your views here.
def home(request):
return render (request, 'blogapp/home.html')
def blog_list(request):
post = Post.objects.order_by('-published_date')
context = {
'posts':post
}
return render(request, 'blogapp/blog_list.html', context)
def blog_detail(request, pk=None):
detail = Post.objects.get(pk=pk)
context = {
'detail': detail
}
return render(request, 'blogapp/blog_detail.html', context)
def add_post(request, pk=None):
if request.method == "POST":
form = PostForm(request.POST)
if form.is_valid:
body = form.save(commit=False)
body.published_date = timezone.now()
body.save()
return redirect('blog_list')
form = PostForm()
else:
form = PostForm()
context = {
'form': form
}
return render(request, 'blogapp/add_post.html', context)
def add_comments(request, pk=None):
if request.method == "POST":
form = CommentsForm(request.POST)
if form.is_valid:
comment = form.save(commit=False)
comment.date_added = timezone.now()
comment.save()
return redirect('blog_detail')
form = CommentsForm()
else:
form = CommentsForm()
context = {
'form': form
}
return render(request, 'blogapp/add_comments.html', context)
urls.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.home, name="homepage"),
path('blog/', views.blog_list, name="blog_list"),
path('blog/post/<int:pk>/', views.blog_detail, name="blog_detail"),
path('blog/add_post/', views.add_post, name="add_post"),
path('blog/add_comments/', views.add_comments, name="add_comments"),
]
forms.py
from django import forms
from .models import Post, Comments
class PostForm(forms.ModelForm):
class Meta:
model = Post
fields = ('author', 'title', 'post_description', 'image', 'image_description', 'body',)
class CommentsForm(forms.ModelForm):
class Meta:
model = Comments
fields = ('post', 'name', 'body',)
models.py
from django.db import models
from django.utils import timezone
# Create your models here.
class Post(models.Model):
author = models.ForeignKey('auth.user', on_delete=models.CASCADE)
title = models.CharField(max_length=300)
body = models.TextField()
post_description = models.CharField(max_length=500, blank=True, null=True)
image = models.ImageField(blank=True, null=True, upload_to="image/")
image_description = models.CharField(max_length=500, blank=True, null=True)
published_date = models.DateTimeField(default=timezone.now, blank=True, null=True)
def publish(self):
self.published_date = timezone.now()
self.save()
def __str__(self):
return self.title
class Comments(models.Model):
post = models.ForeignKey('Post', related_name="comments", on_delete=models.CASCADE)
body = models.TextField()
name = models.CharField(max_length=300)
date_added = models.DateTimeField(default=timezone.now, blank=True, null=True)
def __str__(self):
return '%s - %s' % (self.post.title, self.name)
blog_detail.html
{% extends 'base.html' %}
{% load static %}
{% block content %}
<article>
<strong>
<h1><b>{{ detail.title }}</b></h1>
</strong>
<h3>POST AUTHOR: {{ detail.author }}</h3>
<h4><i>{{ detail.post_description }}</i></h4>
<h4>PUBLISHED:{{ detail.published_date }}</h4>
<p>
<hr>
{% if detail.image %}
<center>
<br>
<img src="{{ detail.image.url }}" width="1000" height="700">
<br><br>
<i>IMAGE DESCRIPTION: {{ detail.image_description }}</i>
</center>
{% endif %}
<hr>
<br><br><br>
{{ detail.body|linebreaksbr }}
</p>
<hr class="solid">
<h2>COMMENTS ...</h2>Add One
{% for comment in post.comments.all %}
<strong>
{{ comment.name }}-{{ comment.date_added }}
</strong>
{{ comment.body }}
{% endfor %}
</article>
{% endblock %}
add_comments.html
{% extends 'base.html' %}
{% block content %}
<article>
{% if user.is_authenticated %}
<h1>CREATE NEW BLOG POST.</h1>
<form method="POST" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<button type="submit">ADD COMMENT</button>
<input type="hidden" name="next" value="{% url 'blog_detail' pk=post.pk %}"/>
</form>
{% else %}
<h2>Login HERE to add comments.</h2>
{% endif %}
</article>
{% endblock %}
in your template you use
{% for comment in post.comments.all %}
but in template context there is no post variable
you should use {% for comment in detail.comments.all %}

Comment form in django didn't save the new comments

I've created a new form for comments the articles on a website. When I add the new comment from django admin everything works ok, but when I try to add the new comment directly from detail page nothings happen and I'am redirecting to the page with list of articles.
here are my files
models.py:
class Komentarz(models.Model):
post = models.ForeignKey(Wpisy, related_name="komentarze", verbose_name="Komentarze do artykułu", on_delete=models.CASCADE)
name = models.CharField(max_length=80, verbose_name="Imię")
email = models.EmailField(verbose_name="Email")
content = models.TextField(verbose_name="Treść komentarza")
created_date = models.DateTimeField(verbose_name="Utworzono", auto_now_add=True)
active = models.BooleanField(verbose_name="Aktywny?", default=True)
class Meta:
ordering = ('created_date',)
verbose_name="Komentarz"
verbose_name_plural="Komentarze"
def __str__(self):
return 'Komentarz dodany przez {} dla strony {}'.format(self.name, self.post)
vies.py with the function of details
from django.shortcuts import render, get_object_or_404
from .models import Wpisy, Komentarz
from .forms import KomentarzeForma
....
def detale_bajki(request, slug, ):
detale_bajki = get_object_or_404(Wpisy, slug=slug)
komentarze = detale_bajki.komentarze.filter(active=True)
if request.method == 'POST':
formularz_komentarza = KomentarzeForma(data=request.POST)
if formularz_komentarza.is_valid():
nowy_komentarz = formularz_komentarza.save(commit=False)
nowy_komentarz.detale_bajki = detale_bajki
nowy_komentarz.save()
else:
formularz_komentarza = KomentarzeForma()
return render(request, 'bajki/detale_bajki.html', {'detale_bajki': detale_bajki, 'komentarze': komentarze, 'formularz_komentarza': formularz_komentarza})
forms.py
from .models import Komentarz
from django import forms
class KomentarzeForma(forms.ModelForm):
class Meta:
model = Komentarz
fields = ('name', 'email', 'content')
and detail.html
...
{% with komentarze.count as total_komentarze %}
<h2>
{{ total_komentarze }} komentarz{{ total_komentarze|pluralize:"y" }}
</h2>
{% endwith %}
{% for komentarz in komentarze %}
Komentarz dodany przez <strong>{{komentarz.name}}</strong>
{{komentarz.created_date}}
<p>
{{ komentarz.content|linebreaks }}<br>
{% empty %}
<p>Nie dodano jeszcze żadnych komentarzy</p>
{% endfor %}
{% if nowy_komentarz %}
<h2>Twój komentarz został dodany</h2>
{% else %}
<h2>Dodaj nowy komentarz</h2>
<form action="." method="post">
{{formularz_komentarza.as_p}}
{% csrf_token %}
<p><input type="submit" value="Dodaj komentarz"></p>
</form>
{% endif %}
clas Wpisy in models.py
class Wpisy(models.Model):
title = models.CharField(max_length=400, verbose_name="Tytuł")
slug = models.SlugField(unique=True, max_length=400,verbose_name="Przyjazny adres url")
content = models.TextField()
status_audio = models.BooleanField(default=False, verbose_name="Czy dostępny będzie plik audio?")
audio_file = models.FileField(upload_to='uploads/',verbose_name="Plik audio")
created_date = models.DateTimeField(blank=True, null=True, verbose_name="Data utworzenia")
category = models.ForeignKey(Kategorie, verbose_name="Kategoria", on_delete=models.CASCADE)
class Meta:
verbose_name="Wpis"
verbose_name_plural="Wpisy"
def __str__(self):
return self.title
Your url pattern is
path('bajki/<slug>', views.detale_bajki, name='detale_bajki')
Note that it doesn't have a trailing slash. Your form's action is "."
<form action="." method="post">
That means you are submitting to /bajki/, which is the wrong URL.
You could fix this by adding a trailing slash to the url (which is common in Django URLs)
path('bajki/<slug>/', views.detale_bajki, name='detale_bajki')
Or you could change the form action to "" instead of ".". In the comments it looks like you fixed the issue by changing the form action to {{ detale_bajki.slug }}.
However these changes to the form action are fragile, and could break if you change your URL patterns again. The best approach is to use the {% url %} tag to reverse the correct URL.
<form action="{% url 'detale_bajki' detale_bajki.slug %}" method="post">
Try out:
nowy_komentarz.post = detale_bajki
...
return render(request, 'html page', {'key': 'what you want to return to your context'}) # don't fornget to add some return to your view.

"This field is required" when field is populated on Django modelForm

After clicking the upload button on a form I get a bullet point beneath the 'Job ID' field stating "This field is required." even though I have values enterred into the field. Here is my code:
forms.py:
class UploadFileForm(forms.ModelForm):
class Meta:
model = Job
fields = ['jobID',
'original_file']
labels = { 'jobID': _('Job ID'),
'original_file': _('File'),}
error_messages = {
'jobID': {'max_length': _("Job ID is limited to 50 characters."),
},
NON_FIELD_ERRORS: {
'unique_together': "%(model_name)s's %(field_labels)s are not unique.",
}
}
models.py:
from __future__ import unicode_literals
from django.db import models
from django.utils import timezone
class Job(models.Model):
user = models.ForeignKey('auth.User')
original_file = models.FileField()
jobID = models.CharField(max_length=50)
rev = models.IntegerField()
create_date = models.DateTimeField(default = timezone.now)
def save(self):
"Get last value of rev considering jobID and User and increment"
"see https://stackoverflow.com/questions/1065089/auto-increment-a-value-in-django-with-respect-to-the-previous-one"
last_rev = Job.objects.filter(user=self.user).filter(jobID=self.jobID).order_by('-rev')
if last_rev:
rev = last_rev[0].rev + 1
else:
rev = 1
super(Job,self).save()
def __unicode__(self):
return self.jobID + " rev " + str(self.rev)
class Meta:
indexes = [
models.Index(fields=['user','jobID']),
]
unique_together = ("user","jobID","rev")
ordering = ['-create_date']
views.py
from __future__ import unicode_literals
from django.shortcuts import render
from django.http import HttpResponseRedirect
from .forms import UploadFileForm
from .models import Job
# Create your views here.
def upload(request):
if request.method == 'POST':
form = UploadFileForm(request.POST, request.FILES)
if form.is_valid():
form.save()
return render(request,'precheck/prestage.html')
else:
form = UploadFileForm()
return render(request, 'precheck/upload.html',{'form': form})
def success(request):
return render(request, 'precheck/prestage.html')
upload.html
{% extends 'base.html' %}
{% block content %}
<h2>Upload File</h2>
{% if error %}
{{ error }}
<br />
<br />
{% endif %}
<form method = "POST" action="{% url 'precheck:upload' %}">
{% csrf_token %}
{{ form.as_p }}
<br />
<input type="submit" class="btn btn-primary" value="Upload">
</form>
{% endblock %}
I tried manually building the form (ie not using a modelform) with the same results. Thanks for the help.
EDIT:
Changing the form to include enctype="multipart/form-data" did the trick:
<form method = "POST" action="{% url 'precheck:upload' %}" enctype="multipart/form-data">
The error is not for jobID, but for original_file. This is because you are not using the enctype="multipart/form-data" attribute on the form element.

Django HTML POST parameters causes NoReverseMatch

I have an HTML post with two drop down lists, I want to send selected Country in those lists to the search() method that's in views.py and then send me to the results view. Whenever I add government and location as parameters for the html POST action or add their value in the search regex, I try this I get a NoReverseMatch from my index page:
Reverse for 'search' with arguments '('', '')' and keyword arguments '{}' not found. 1 pattern(s) tried: ['search/(?P[A-Z]{3})/(?P[A-Z]{3})/']
and I don't what I'm doing wrong to cause this error. (See comments in code)
appname/views.py:
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect, HttpResponse
from .models import Country, Embassy
from django.template import loader
from django.urls import reverse
def index(request):
country = Country.objects.filter()
template = loader.get_template('appname/index.html')
context = {'countries': country}
return render(request, 'appname/index.html', context)
def results(request, government, location):
return HttpResponse("Here are the Embassies sent by %s, located in %s." % (government, location))
def search(request):
countries = Country.objects.all()
form = request.POST
if request.method == 'POST':
try:
selected_government = get_object_or_404(pk=request.POST['government'])
except (KeyError, Country.DoesNotExist):
return render(request, 'appname/index.html', {
'error_message': "You didn't select a government.",
})
try:
selected_location = get_object_or_404(pk=request.POST['location'])
except (KeyError, Country.DoesNotExist):
return render(request, 'appname/index.html', {
'error_message': "You didn't select a location.",
})
else:
return HttpResponseRedirect(reverse('appname:results', args=(selected_government.code,selected_location.code,)))
appname/templates/appname/index.html:
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
# government and location in the form action causes a NoReverse Match
<form action="{% url 'appname:search' government location %}" method="POST">
{% csrf_token %}
<label>Find Embassies sent by</label>
<select name="government">
{% for entry in countries %}
<option value="{{ entry.code }}">{{ entry.name }}</option>
{% endfor %}
</select>
<label>that are located in</label>
<select name="location">
{% for entry in countries %}
<option value="{{ entry.code }}">{{ entry.name }}</option>
{% endfor %}
</select>
<input type="submit" value="Search" />
</form>
urls.py:
from django.conf.urls import include, url
from django.contrib import admin
urlpatterns = [
url(r'^', include('appname.urls')),
url(r'^appname/', include('appname.urls')),
url(r'^admin/', admin.site.urls),
]
appname/urls.py:
from django.conf.urls import url
from . import views
app_name = 'appname'
urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'^(?P<embassy_id>[0-9]+)/$', views.embassy_info, name='embassy_info'),
url(r'^(?P<code>[A-Z]{3})/$', views.country_info, name='country_info'),
url(r'^find/(?P<government>[A-Z]{3})/(?P<location>[A-Z]{3})/$', views.results, name='results'),
# the government and location values in search regex also cause a NoReverse Match
url(r'^search/(?P<government>[A-Z]{3})/(?P<location>[A-Z]{3})/', views.search, name='search'),
]
appname/models.py:
from django.db import models
class Country(models.Model):
code = models.CharField(primary_key=True, max_length=3)
name = models.CharField(max_length=50, db_column="Name")
def __str__(self):
return self.name
class Meta:
verbose_name = 'Country'
verbose_name_plural = 'Countries'
class Embassy(models.Model):
government = models.ForeignKey(Country, on_delete=models.CASCADE, related_name="government")
location = models.ForeignKey(Country, on_delete=models.CASCADE, related_name="location")
name = models.CharField(max_length=200, db_column="Name")
street_address = models.CharField(max_length=200, db_column="Address")
city = models.CharField(max_length=50, db_column="City")
phone_number = models.IntegerField(default=-1, db_column="Phone Number")
fax_number = models.IntegerField(null=True, blank=True, db_column="Fax Number")
email_address = models.CharField(max_length=200, db_column="Email")
website = models.CharField(max_length=200, db_column="Link")
def __str__(self):
return self.name
class Meta:
verbose_name = 'Embassy'
verbose_name_plural = 'Embassies'
It doesn't work like that. The parameters to the url tag - like any template tag in fact - have to come from the context passed to the template at render time. But you're trying to use values dynamically from the form itself.
You should remove the parameters from the URL pattern altogether. You're not using them in the view anyway since you correctly get the values from request.POST.
url(r'^search/$', views.search, name='search'),
...
<form action="{% url 'search' %}" ...
You need to create a form with ModelChoiceField.
In forms.py
from django import forms
from models import Country
class SearchForm(forms.Form):
government = forms.ModelChoiceField(queryset=Country.objects.all(), to_field_name="code", label="Find Embassies sent by")
location = forms.ModelChoiceField(queryset=Country.objects.all(), to_field_name="code", label="that are located in")
In views.py
from forms import SearchForm
def index(request):
form = SearchForm()
context = {'form': form}
return render(request, 'appname/index.html', context)
def search(request):
form = SearchForm(request.POST or None)
if request.POST and form.is_valid():
govt = form.cleaned_data.get('government')
loc = form.cleaned_data.get('location')
return HttpResponseRedirect(reverse('appname:results', kwargs={"government": govt.code, "location": loc.code}))
else:
context = {'form': form}
return render(request, 'appname/index.html', context)
In appname/urls.py
add this url
url(r'^search/$', views.search, name='search'),
In index.html
<form method="post" action={% url 'appname:search' %}>
{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Search" />
</form>
Django URL resolver reverse takes keyword arguments as parameters
reverse('search', kwargs={'government':goverment.code, 'location':location.code})
Hope this helps

Django Managment_form

I need to create a comment form on my site. When I try to display comment_form in HTML instead of the browser, I receive this error:
[u'ManagementForm data is missing or has been tampered with'].
Why is this? How can I fix it?
Here is models.py:
class Category(models.Model):
category_name = models.CharField(max_length=255)
def __unicode__(self):
return u'{0}'.format(self.category_name)
class Category_Form(forms.Form):
category_name = forms.CharField(label='Category_name', max_length=255)
class Comments(models.Model):
comment = models.CharField(max_length=512)
article = models.ForeignKey('Article')
class Comments_Form(forms.Form):
comment = forms.CharField(label='Comment', max_length=512)
article_id = forms.CharField()
class Article(models.Model):
author = models.CharField(max_length=100)
title = models.CharField(max_length=255)
short_text = models.CharField(max_length=1024)
full_text = models.CharField(max_length=5024)
date = models.DateTimeField(default=datetime.now())
category = models.ForeignKey('Category')
class Article_Form(forms.Form):
author = forms.CharField(label='author_article', max_length=100)
title = forms.CharField(label='title_article', max_length=255)
short_text = forms.CharField(label='short_text_article', max_length=1024, widget=CKEditorWidget())
full_text = forms.CharField(label='full_text_article', max_length=5024, widget=CKEditorWidget())
date = forms.DateTimeField()
category = forms.ModelChoiceField(queryset=Category.objects.order_by('category_name'))
My views.py:
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render
from django import forms
from django.template import RequestContext
from sghome.models import News_Form, News, Article_Form, Article, Category, Category_Form, User, User_Form, \
Comments_Form, Comments
from django.forms.formsets import formset_factory
from django.shortcuts import render_to_response
from django.core.urlresolvers import reverse
def Show_Article_Site(request, num):
article = list(Article.objects.filter(id=num))
CommentFormSet = formset_factory(Comments_Form)
formset = CommentFormSet(request.POST, request.FILES)
# formset = CommentFormSet()
return render_to_response('Show_Article_Site.html', {'article': article, 'formset': formset, },
context_instance=RequestContext(request))
def Create_Comment(request):
if request.method == 'POST':
# formset = CommentFormSet(request.POST, request.FILES)
Comment = Comments()
Comment.comment = request.POST['form-0-comment']
else:
Show_Article_Site.formset = Show_Article_Site.CommentFormSet()
return HttpResponseRedirect(reverse(Show_Article_Site))
And my template:
{% extends "base_site.html" %}
{% block center_site %}
{% csrf_token %}
<div class="create_news">
{% for artic in article %}
<br><p>Автор: </p> {{ artic.author }}
<br><p>Дата: </p> {{ artic.date }}
<br><p>Заголовок: </p>{{ artic.title }}
<br><p>Текст: </p>{{ artic.full_text }}
{% endfor %}
<form method="post" action="/Create_Comment/">
{% for form in formset %}
{{ form.comment }}
<input type="submit" value="Add">
{% endfor%}
</form>
</div>
{% endblock %}
Use
formset = CommentFormSet()
Instead of
formset = CommentFormSet(request.POST, request.FILES)
Cause your request.POST and request.FILES are not initiated in that place

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