Need Help Fixing an Issue in my E-commerce Project

[Ahmed Khairy]

Hi all,

I have been battling with this issue for quite a long time and I haven't 
been able to find a solution to fix it. 

So, I have an E-commerce Project and The issue is related to the product 
Variations and the quantity related to it in the order summary page. 

Example with the sequence for my issue: 

1. From the product details I add to cart the item* White T-shirt*  after 
choosing the variations of *Small *Size
2. After adding the first item, I return to the product details page and 
add another *White T-shirt* but different size *Medium*

Now, this is what appears in my order summary:


   - *White T-shirt* with a size *Small *Quantity: 1
   - *White T-shirt *with a size *Medium *Quantity:1

When I change the quantity of item X size medium, this change is reflecting 
in item X size small which was chosen first.

To be like this:

   - *White T-shirt* with a size *Small *Quantity:2
   - *White T-shirt* with a size *Medium *Quantity:1

In the order summary, there are a plus and minus in the template to change 
the quantity.

I have recently understood that because there's no form in the template. 
The code that sends a POST request with form data to the add to cart view 
is not there, because item_var will always be an empty list so 
order_item.variation.add(*item_var) does nothing. I do not know how to add 
a POST request to this template.

in the template there is a URL to add-to-cart", but URLs are transmitted by 
GET, so the code after if request.method == 'POST': never hits. 
Furthermore, even if it would, the add_to_cart url knows nothing about 
variations cause it only gets item slugs.


Here is my models.py

class Item(models.Model):
title = models.CharField(max_length=100)
price = models.DecimalField(decimal_places=2, max_digits=100)


class VariationManager(models.Manager):
def all(self):
return super(VariationManager, self).filter(active=True)

def sizes(self):
return self.all().filter(category='size')

def colors(self):
return self.all().filter(category='color')

VAR_CATEGORIES = (
('size', 'size',),
('color', 'color',),
('package', 'package'),
)


class Variation(models.Model):
item = models.ForeignKey(Item, on_delete=models.CASCADE)
title = models.CharField(max_length=120)
price = models.DecimalField(decimal_places=2, max_digits=100, null=True, 
blank=True)
objects = VariationManager()


class OrderItem(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL,
 on_delete=models.CASCADE)
ordered = models.BooleanField(default=False)
item = models.ForeignKey(Item, on_delete=models.CASCADE)
quantity = models.IntegerField(default=1)
variation = models.ManyToManyField(Variation)


Here are the views:

class OrderSummaryView(LoginRequiredMixin, View):
def get(self, *args, **kwargs):

try:
order = Order.objects.get(user=self.request.user, ordered=False)
context = {
'object': order
}
return render(self.request, 'order_summary.html', context)
except ObjectDoesNotExist:
messages.warning(self.request, "You do not have an active order")
return redirect("/")


@login_required
def add_to_cart(request, slug):
item = get_object_or_404(Item, slug=slug)
order_item_qs = OrderItem.objects.filter(
item=item,
user=request.user,
ordered=False
)
item_var = []  # item variation
if request.method == 'POST':
for items in request.POST:
key = items
val = request.POST[key]
try:
v = Variation.objects.get(
item=item,
category__iexact=key,
title__iexact=val
)
item_var.append(v)
except:
pass

if len(item_var) > 0:
for items in item_var:
order_item_qs = order_item_qs.filter(
variation__exact=items,
)

if order_item_qs.exists():
order_item = order_item_qs.first()
order_item.quantity += 1
order_item.save()
else:
order_item = OrderItem.objects.create(
item=item,
user=request.user,
ordered=False
)
order_item.variation.add(*item_var)
order_item.save()

order_qs = Order.objects.filter(user=request.user, ordered=False)
if order_qs.exists():
order = order_qs[0]
# check if the order item is in the order
if not order.items.filter(item__id=order_item.id).exists():
order.items.add(order_item)
messages.info(request, "This item quantity was updated.")
return redirect("core:order-summary")
else:
ordered_date = timezone.now()
order = Order.objects.create(
user=request.user, ordered_date=ordered_date)
order.

How to create a link between Posts List View and Items List View of the same User

[Ahmed Khairy]

I am creating a project where there are Posts and Items, 2 different models 
in 2 different apps and each has a user who can be the same.

I have created a page for each user to post all related posts called 
Userpost List view, and I want to add an if statement or a queryset to show 
a button to link the items related to the same user called Designerpost 
List view.

I don't know how to proceed as I can fix the NoReverse Error

Here is the models.py

class Post(models.Model):
designer = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(max_length=100)

Here is the views.py

class UserPostListView(ListView):
model = Post
template_name = "user_posts.html"
context_object_name = 'posts'
queryset = Post.objects.filter(admin_approved=True)
paginate_by = 6

def get_queryset(self):
user = get_object_or_404(User, username=self.kwargs.get('username'))
return Post.objects.filter(designer=user, 
admin_approved=True).order_by('-date_posted')

Here is the template user_posts.html

{% if item %}
 Go to items{% else %}
  
Go to 
items
 {% endif %}

here is the item models.py

class Item(models.Model):
designer = models.ForeignKey(
User, on_delete=models.CASCADE)
title = models.CharField(max_length=100)

here is the designerlist views.py that I am trying to link to from the user 
post view if it is available

class DesignerPostListView(ListView):
model = Item
template_name = "designer_posts.html"
context_object_name = 'items'
paginate_by = 6

def get_queryset(self):
user = get_object_or_404(User, username=self.kwargs.get('username'))
return Item.objects.filter(designer=user).order_by('-timestamp')

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AttributeError when returning post.title in a comment model

[Ahmed Khairy]

I was working on a comment section for post and was getting an 
AttributeError when I return return '{}-{}'.format(self.post.title, 
str(self.user.username)) in the comment model

I am trying to link users and posts to the comment I am getting the same 
error

Here is the Models.py

class Comment(models.Model):
post = models.ForeignKey(Post, on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.CASCADE)
content = models.TextField(max_length=160)
timestamp = models.DateTimeField(auto_now_add=True)

def __str__(self):
return '{}-{}'.format(self.post.title, str(self.user.username))

Here is the views.py:

class PostDetailView(DetailView):
model = Post
template_name = "post_detail.html"

def get_context_data(self, *args, **kwargs):
context = super(PostDetailView, self).get_context_data()
post = get_object_or_404(Post, slug=self.kwargs['slug'])
comments = Comment.objects.filter(post=post).order_by('-id')
total_likes = post.total_likes()
liked = False
if post.likes.filter(id=self.request.user.id).exists():
liked = True

if self.request.method == 'POST':
comment_form = CommentForm(self.request.POST or None)
if comment_form.is_valid():
content = self.request.POST.get('content')
comment = Comment.objects.create(
post=post, user=request.user, content=content)
comment.save()
return HttpResponseRedirect("post_detail.html")
else:
comment_form = CommentForm()

context["total_likes"] = total_likes
context["liked"] = liked
context["comments"] = comments
context["comment_form"] = comment_form
return context


class PostCommentCreateView(LoginRequiredMixin, CreateView):
model = Comment
form_class = CommentForm


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Re: Template Variations title not showing

[Ahmed Khairy]

here is the link 
https://groups.google.com/forum/#!topic/django-users/5SckOumQLQM

On Sunday, May 24, 2020 at 10:38:18 PM UTC-4, Ahmed Khairy wrote:
>
> Helloo,
>
> Check my views in this question link, it might be useful 
>
> On Saturday, May 23, 2020 at 1:35:32 AM UTC-4, oldtimer wrote:
>>
>> I cannot get variations or I tried model forms for options as well and 
>> cannot get either to add to the cart. I can get both to display as options 
>> on the product page, but that is as far as I've made it. Need some help on 
>> how to get the views.py to get the options and post to cart.
>>
>

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Re: Template Variations title not showing

[Ahmed Khairy]

Helloo,

Check my views in this question link, it might be useful 

On Saturday, May 23, 2020 at 1:35:32 AM UTC-4, oldtimer wrote:
>
> I cannot get variations or I tried model forms for options as well and 
> cannot get either to add to the cart. I can get both to display as options 
> on the product page, but that is as far as I've made it. Need some help on 
> how to get the views.py to get the options and post to cart.
>

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Changing in the Quantity of variants reflecting in the wrong item in Order Summary

[Ahmed Khairy]

Helloo,

I have a problem with the variations and the quantity related to it in the 
order summary page. 

It was working perfectly and all of a sudden (this is an example to 
simplify):

when I add to the cart 2 items:

- Item X with a size small 
- Item X with a size medium

When I change the quantity of item X size medium, this change is reflecting 
in item X size small which was chosen first. 

In the order summary, there are a plus and minus in the template to change 
the quantity. 

I have identified the problem but I can't figure out why it is occurring

Here is the template:
 Order Summary

{% for order_item in object.items.all %}

{{ forloop.counter }}
{{ order_item.item.title }}
{{ order_item.item.price }}


{{ order_item.quantity }}




{% if order_item.variation.all %}
{% for variation in order_item.variation.all %}
{{ variation.title|capfirst }}
{% endfor %}
{% endif %}
 
```
Here is the views.py

class OrderSummaryView(LoginRequiredMixin, View):
def get(self, *args, **kwargs):

try:
order = Order.objects.get(user=self.request.user, ordered=False)
context = {
'object': order
}
return render(self.request, 'order_summary.html', context)
except ObjectDoesNotExist:
messages.warning(self.request, "You do not have an active 
order")
return redirect("/")


@login_required
def add_to_cart(request, slug):
item = get_object_or_404(Item, slug=slug)

order_item_qs = OrderItem.objects.filter(
item=item,
user=request.user,
ordered=False
)

item_var = []  # item variation
if request.method == 'POST':
for items in request.POST:
key = items
val = request.POST[key]
try:
v = Variation.objects.get(
item=item,
category__iexact=key,
title__iexact=val
)
item_var.append(v)
except:
pass

if len(item_var) > 0:
for items in item_var:
order_item_qs = order_item_qs.filter(
variation__exact=items,
)

if order_item_qs.exists():
order_item = order_item_qs.first()
order_item.quantity += 1
order_item.save()
else:
order_item = OrderItem.objects.create(
item=item,
user=request.user,
ordered=False
)
order_item.variation.add(*item_var)
order_item.save()

order_qs = Order.objects.filter(user=request.user, ordered=False)
if order_qs.exists():
order = order_qs[0]
# check if the order item is in the order
if not order.items.filter(item__id=order_item.id).exists():
order.items.add(order_item)
messages.info(request, "This item quantity was updated.")
return redirect("core:order-summary")
else:
ordered_date = timezone.now()
order = Order.objects.create(
user=request.user, ordered_date=ordered_date)
order.items.add(order_item)
messages.info(request, "This item was added to cart.")
return redirect("core:order-summary")


@login_required
def remove_from_cart(request, slug):
item = get_object_or_404(Item, slug=slug)
order_qs = Order.objects.filter(
user=request.user,
ordered=False
)
if order_qs.exists():
order = order_qs[0]
# check if the order item is in the order
if order.items.filter(item__slug=item.slug).exists():
order_item = OrderItem.objects.filter(
item=item,
user=request.user,
ordered=False
)[0]
order.items.remove(order_item)
order_item.delete()
messages.info(request, "This item was removed from your cart")
return redirect("core:order-summary")

else:
messages.info(request, "This item was not in your cart")
return redirect("core:product", slug=slug)
else:
messages.info(request, "You don't have an active order")
return redirect("core:product", slug=slug)


@login_required
def remove_single_item_from_cart(request, slug):
item = get_object_or_404(Item, slug=slug)
order_qs = Order.objects.filter(
user=request.user,
ordered=False
)
if order_qs.exists():
order = order_qs[0]
# check if the order item is in the order
if order.items.filter(item__slug=item.slug).exists():
order_item = OrderItem.objects.filter(
item=item,
 

Re: Template Variations title not showing

[Ahmed Khairy]

Did you adjust your views to make the variations add to the cart ? 

On Thursday, May 21, 2020 at 10:04:15 PM UTC-4, oldtimer wrote:
>
> Hello,
>
> i was able to get the variant to show on the product page with using a 
> form.
>
> I cannot get the variants to display in the cart.
>
> Only difference is my Variation model is a ManyToManyField to the item. I 
> have also changed my variant options to numbers as the dict was expecting 
> an integer and not a string, that is why mine shows 0 not size.
>
> Hope this helps, maybe you can help me get the next peice.
>
> thanks 
>
> {% if item.variation_set.sizes %}
> 
> {% for item in item.variation_set.sizes %}
> 
> Select Size
> {{ item.name }} option>
> {% endfor %}
> 
>     {% endif %}
>
> On Tuesday, May 5, 2020 at 5:12:15 PM UTC-6, Ahmed Khairy wrote:
>>
>> Hello all,
>>
>> I have made a variation to an Item class in models.py and I think i got 
>> the template syntax right but apparently there are something wrong which i 
>> can't figure it out
>>
>> Here is the model
>>
>> class Item(models.Model):
>> title = models.CharField(max_length=100)
>> description = models.TextField()
>> price = models.FloatField()
>> slug = models.SlugField(unique=True)
>> image = models.ImageField(blank=False, upload_to='approved designs')
>>
>>
>> def __str__(self):
>> return self.title
>>
>> class Meta:
>> unique_together = ('title', 'slug')
>> class Variation(models.Model):
>> item = models.ForeignKey(Item, on_delete=models.CASCADE)
>> title = models.CharField(max_length=120)
>> image = models.ImageField(null=True, blank=True)
>> price = models.FloatField(null=True, blank=True)
>>
>> def __str__(self):
>> return self.title
>>
>> and here is the template
>>
>> {% if item.variation_set.all %}
>> 
>> {% for items in item.variation_set.all %}
>> > value='{item.variation|lower}'>{{title.title|capfirst}}
>> {% endfor %}
>> 
>> {% endif %}
>>
>>

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Re: Can't Fix the No Reverse Error in Ajax

[Ahmed Khairy]

Do you mean that this line should be changed?

 No ! Don't Print it 

On Tuesday, May 19, 2020 at 11:11:12 PM UTC-4, Hella Nick wrote:
>
> button标签中的type属性设置为button，
>
> Ahmed Khairy > 于2020年5月20日周三 上午1:54写道：
>
>> I am trying to use Ajax to submit a like button, I believe everything is 
>> in order but I keep getting django.urls.exceptions.NoReverseMatch: Reverse 
>> for 'like_post' with arguments '('',)' not found. 1 pattern(s) tried: 
>> ['score/like/(?P[0-9]+)$']
>>
>>
>> I am not sure what is the reason. Need help to identify the error.
>>
>>
>> Here is the view
>>
>>
>> class PostDetailView(DetailView):
>> model = Post
>> template_name = "post_detail.html"
>>
>> def get_context_data(self, *args, **kwargs):
>> context = super(PostDetailView, self).get_context_data()
>> stuff = get_object_or_404(Post, id=self.kwargs['pk'])
>> total_likes = stuff.total_likes()
>> liked = False
>> if stuff.likes.filter(id=self.request.user.id).exists():
>> liked = True
>> context["total_likes"] = total_likes
>> context["liked"] = liked
>> return context
>>
>>
>> def LikeView(request, pk):
>> # post = get_object_or_404(Post, id=request.POST.get('post_id'))
>> post = get_object_or_404(Post, id=request.POST.get('id'))
>> like = False
>> if post.likes.filter(id=request.user.id).exists():
>> post.likes.remove(request.user)
>> like = False
>> else:
>> post.likes.add(request.user)
>> like = True
>> context["total_likes"] = total_likes
>> context["liked"] = liked
>>
>> if request.is_ajax:
>> html = render_to_string('like_section.html', context, request=
>> request)
>> return JsonResponse({'form': html})
>>
>> Here is the url.py updated
>>
>> urlpatterns = [
>> path('user/', UserPostListView.as_view(), name=
>> 'user-posts'),
>> path('', PostListView.as_view(), name='score'),
>> path('who_we_Are/', who_we_are, name='who_we_are'),
>> path('/', PostDetailView.as_view(), name='post-detail'),
>> path('like/', LikeView, name='like_post'),
>> path('new/', PostCreateView.as_view(), name='post-create'),
>> path('/update/', PostUpdateView.as_view(), name='post-update'
>> ),
>> path('/delete/', PostDeleteView.as_view(), name='post-delete'
>> )
>> ]
>>
>> here is the template
>>
>> 
>> {% csrf_token %}
>>  Likes: {{total_likes}}  
>> {% if user.is_authenticated %}
>> {% if liked %}
>> > 'post_id' class= "btn btn-danger btn-sm" 
>> value="{{post.id}}"> Unlike 
>> {% else %}
>> > 'post_id' class= "btn btn-primary btn-sm" 
>> value="{{post.id}}"> Like 
>> {% endif  %}
>> {% else %}
>> > > Login to Like 
>> {% endif %}   
>>
>>
>> here is the ajax
>>
>> https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"</a>;></
>> script>
>> 
>> <script type="text/javascript">
>> $(document).ready(function(event){
>> $(document).on.('click','#like', function(event){
>> event.preventDefault();
>> $var pk= $(this).attr('value');
>> $.ajax({
>> type:'POST',
>> url:'{% url "score:like_post" post.pk %}',
>> data:{'id': pk, 'csrfmiddlewaretoken':
>> '{{csrf_token}}'},
>> dataType:'json', 
>> 

Can't Fix the No Reverse Error in Ajax

[Ahmed Khairy]

I am trying to use Ajax to submit a like button, I believe everything is in 
order but I keep getting django.urls.exceptions.NoReverseMatch: Reverse for 
'like_post' with arguments '('',)' not found. 1 pattern(s) tried: 
['score/like/(?P[0-9]+)$']


I am not sure what is the reason. Need help to identify the error.


Here is the view


class PostDetailView(DetailView):
model = Post
template_name = "post_detail.html"

def get_context_data(self, *args, **kwargs):
context = super(PostDetailView, self).get_context_data()
stuff = get_object_or_404(Post, id=self.kwargs['pk'])
total_likes = stuff.total_likes()
liked = False
if stuff.likes.filter(id=self.request.user.id).exists():
liked = True
context["total_likes"] = total_likes
context["liked"] = liked
return context


def LikeView(request, pk):
# post = get_object_or_404(Post, id=request.POST.get('post_id'))
post = get_object_or_404(Post, id=request.POST.get('id'))
like = False
if post.likes.filter(id=request.user.id).exists():
post.likes.remove(request.user)
like = False
else:
post.likes.add(request.user)
like = True
context["total_likes"] = total_likes
context["liked"] = liked

if request.is_ajax:
html = render_to_string('like_section.html', context, request=
request)
return JsonResponse({'form': html})

Here is the url.py updated

urlpatterns = [
path('user/', UserPostListView.as_view(), name=
'user-posts'),
path('', PostListView.as_view(), name='score'),
path('who_we_Are/', who_we_are, name='who_we_are'),
path('/', PostDetailView.as_view(), name='post-detail'),
path('like/', LikeView, name='like_post'),
path('new/', PostCreateView.as_view(), name='post-create'),
path('/update/', PostUpdateView.as_view(), name='post-update'),
path('/delete/', PostDeleteView.as_view(), name='post-delete')
]

here is the template


{% csrf_token %}
 Likes: {{total_likes}}  
{% if user.is_authenticated %}
{% if liked %}
 Unlike 
{% else %}
 Like 
{% endif  %}
{% else %}
 Login to Like 
{% endif %}   
   

here is the ajax

https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js";>


$(document).ready(function(event){
$(document).on.('click','#like', function(event){
event.preventDefault();
$var pk= $(this).attr('value');
$.ajax({
type:'POST',
url:'{% url "score:like_post" post.pk %}',
data:{'id': pk, 'csrfmiddlewaretoken':'{{csrf_token}}'},
dataType:'json', 
success:function(response){
$('#like-section').html(response['form'])
console.log($('#like-section').html(response['form'
]));
},
error:function(rs, e){
console.log(rs.responseText);   
},
});
});
});



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Re: how to write Ajax for a Like button in Django

[Ahmed Khairy]

Hi Motaz,

I tried it again now but when I press it there is no change. The likes 
count is the same and the like button doesnt change to dislike

On Sunday, May 17, 2020 at 10:05:12 PM UTC-4, Motaz Hejaze wrote:
>
> The button is submitted but without page refresh
>
> On Mon, 18 May 2020, 3:53 am Ahmed Khairy,  > wrote:
>
>> Hi Motaz,
>>
>> When I added your code it disabled the function of the button nothing 
>> happened
>>
>> On Sunday, May 17, 2020 at 9:30:38 PM UTC-4, Motaz Hejaze wrote:
>>>
>>> In your like button form in your templates , 
>>> try this :
>>>
>>> 
>>>
>>> i don't think you need ajax for this , but if you still need it let us know
>>>
>>>
>>> On Mon, 18 May 2020, 2:26 am Gabriel Araya Garcia, <
>>> gabriela...@gmail.com> wrote:
>>>
>>>> Hi Ahmed, I was looking for that during several months and I have found 
>>>> examples than not run, and therefore I`ve get one conclution: "It`s not 
>>>> posible to get that functionality in Django". No one could demostrate with 
>>>> example code.
>>>> If you find something, please send me the code.
>>>>
>>>> Thanks
>>>>
>>>>   
>>>> Gabriel Araya Garcia
>>>> GMI - Desarrollo de Sistemas Informáticos
>>>>
>>>>
>>>>
>>>>
>>>> El dom., 17 may. 2020 a las 20:15, Ahmed Khairy () 
>>>> escribió:
>>>>
>>>>> Hi all,
>>>>>
>>>>> I need some help writing the ajax for a like button instead of 
>>>>> refreshing every time a like is posted 
>>>>>
>>>>> here is the template: 
>>>>>
>>>>> 
>>>>> {% csrf_token %}
>>>>> {% if user.is_authenticated %}
>>>>> {% if liked %}
>>>>> >>>> class= "btn btn-danger btn-sm" value="{{post.id}}"> Unlike >>>> >
>>>>> {% else %}
>>>>> >>>> class= "btn btn-primary btn-sm" value="{{post.id}}"> Like >>>> >
>>>>> {% endif  %}
>>>>> {% else %}
>>>>>  Login>>>> > to Like 
>>>>> {{total_likes}} Likes 
>>>>> {% endif %}
>>>>>  
>>>>>
>>>>> Here is the urls:
>>>>> path('like/', LikeView, name='like_post'),
>>>>>
>>>>> here is the views:
>>>>> def LikeView(request, pk):
>>>>> post = get_object_or_404(Post, id=request.POST.get('post_id'))
>>>>> like = False
>>>>> if post.likes.filter(id=request.user.id).exists():
>>>>> post.likes.remove(request.user)
>>>>> like = False
>>>>>
>>>>> else:
>>>>> post.likes.add(request.user)
>>>>> like = True
>>>>> return redirect('score:post-detail', pk=pk)
>>>>>
>>>>> class PostDetailView(DetailView):
>>>>> model = Post
>>>>> template_name = "post_detail.html"
>>>>>
>>>>> def get_context_data(self, *args, **kwargs):
>>>>> context = super(PostDetailView, self).get_context_data()
>>>>>
>>>>> stuff = get_object_or_404(Post, id=self.kwargs['pk'])
>>>>> total_likes = stuff.total_likes()
>>>>>
>>>>> liked = False
>>>>> if stuff.likes.filter(id=self.request.user.id).exists():
>>>>> liked = True
>>>>>
>>>>> context["total_likes"] = total_likes
>>>>> context["liked"] = liked
>>>>> return context
>>>>>
>>>>>
>>>>>
>>>>> -- 
>>>>> You received this message because you are subscribed to the Google 
>>>>> Groups "Django users&q

Re: how to write Ajax for a Like button in Django

[Ahmed Khairy]

Hi Motaz,

When I added your code it disabled the function of the button nothing 
happened

On Sunday, May 17, 2020 at 9:30:38 PM UTC-4, Motaz Hejaze wrote:
>
> In your like button form in your templates , 
> try this :
>
> 
>
> i don't think you need ajax for this , but if you still need it let us know
>
>
> On Mon, 18 May 2020, 2:26 am Gabriel Araya Garcia,  > wrote:
>
>> Hi Ahmed, I was looking for that during several months and I have found 
>> examples than not run, and therefore I`ve get one conclution: "It`s not 
>> posible to get that functionality in Django". No one could demostrate with 
>> example code.
>> If you find something, please send me the code.
>>
>> Thanks
>>
>>   
>> Gabriel Araya Garcia
>> GMI - Desarrollo de Sistemas Informáticos
>>
>>
>>
>>
>> El dom., 17 may. 2020 a las 20:15, Ahmed Khairy (> >) escribió:
>>
>>> Hi all,
>>>
>>> I need some help writing the ajax for a like button instead of 
>>> refreshing every time a like is posted 
>>>
>>> here is the template: 
>>>
>>> 
>>> {% csrf_token %}
>>> {% if user.is_authenticated %}
>>> {% if liked %}
>>> >> class= "btn btn-danger btn-sm" value="{{post.id}}"> Unlike >> >
>>> {% else %}
>>> >> class= "btn btn-primary btn-sm" value="{{post.id}}"> Like >> >
>>> {% endif  %}
>>> {% else %}
>>>  Login>> > to Like 
>>> {{total_likes}} Likes 
>>> {% endif %}
>>>  
>>>
>>> Here is the urls:
>>> path('like/', LikeView, name='like_post'),
>>>
>>> here is the views:
>>> def LikeView(request, pk):
>>> post = get_object_or_404(Post, id=request.POST.get('post_id'))
>>> like = False
>>> if post.likes.filter(id=request.user.id).exists():
>>> post.likes.remove(request.user)
>>> like = False
>>>
>>> else:
>>> post.likes.add(request.user)
>>> like = True
>>> return redirect('score:post-detail', pk=pk)
>>>
>>> class PostDetailView(DetailView):
>>> model = Post
>>> template_name = "post_detail.html"
>>>
>>> def get_context_data(self, *args, **kwargs):
>>> context = super(PostDetailView, self).get_context_data()
>>>
>>> stuff = get_object_or_404(Post, id=self.kwargs['pk'])
>>> total_likes = stuff.total_likes()
>>>
>>> liked = False
>>> if stuff.likes.filter(id=self.request.user.id).exists():
>>> liked = True
>>>
>>> context["total_likes"] = total_likes
>>> context["liked"] = liked
>>> return context
>>>
>>>
>>>
>>> -- 
>>> You received this message because you are subscribed to the Google 
>>> Groups "Django users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send 
>>> an email to django...@googlegroups.com .
>>> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/django-users/00707977-9b68-4329-a13d-adb9ab7b8813%40googlegroups.com
>>>  
>>> <https://groups.google.com/d/msgid/django-users/00707977-9b68-4329-a13d-adb9ab7b8813%40googlegroups.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/CAKVvSDCuegzvsZQ_Rfms3yMA_EO914T0yJ_n929mnx7bNDodUA%40mail.gmail.com
>>  
>> <https://groups.google.com/d/msgid/django-users/CAKVvSDCuegzvsZQ_Rfms3yMA_EO914T0yJ_n929mnx7bNDodUA%40mail.gmail.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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how to write Ajax for a Like button in Django

[Ahmed Khairy]

Hi all,

I need some help writing the ajax for a like button instead of refreshing 
every time a like is posted 

here is the template: 


{% csrf_token %}
{% if user.is_authenticated %}
{% if liked %}
 Unlike 
{% else %}
 Like 
{% endif  %}
{% else %}
 Login to Like 
{{total_likes}} Likes 
{% endif %}
 

Here is the urls:
path('like/', LikeView, name='like_post'),

here is the views:
def LikeView(request, pk):
post = get_object_or_404(Post, id=request.POST.get('post_id'))
like = False
if post.likes.filter(id=request.user.id).exists():
post.likes.remove(request.user)
like = False

else:
post.likes.add(request.user)
like = True
return redirect('score:post-detail', pk=pk)

class PostDetailView(DetailView):
model = Post
template_name = "post_detail.html"

def get_context_data(self, *args, **kwargs):
context = super(PostDetailView, self).get_context_data()

stuff = get_object_or_404(Post, id=self.kwargs['pk'])
total_likes = stuff.total_likes()

liked = False
if stuff.likes.filter(id=self.request.user.id).exists():
liked = True

context["total_likes"] = total_likes
context["liked"] = liked
return context



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Re: pip not working

[Ahmed Khairy]

Did you try pip install -r requirements.txt?

On Friday, May 15, 2020 at 10:16:52 AM UTC-4, Akorede Habeebullah wrote:
>
> Hi guys, I need help with my pip. It was working fine until I upgraded it. 
> now its not working fine anymore. I tried running all pip commands that I 
> know its still not working.
> I detected this while trying to install requirements.txt for a cloned 
> project , I've tried using  python -m pip install and pip install --user 
> but its not working too.
>
> I need help pls.
> Thanks.
>
>

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Re: Exception Value: Related Field got invalid lookup: value

[Ahmed Khairy]

In the views file 

in the class PostListView(ListView):


   1. 
   
   def get_queryset(self, **kwargs):
   
   2. 
   
   queryset = super(PostListView, self).get_queryset(**kwargs)
   
   

   1. 
   
   return queryset.annotate(
   
   …


   1. 
   
   total_liked=Count(
   
   2. 
   
   'likes',
   
   3. 
   
   filter=Q(likes__value="Like")
   
   4. 
   
   )).annotate(
   
   5. 
   
   user_liked=Case(
   
   6. 
   
   When(Q(likes__user=self.request.user) & Q(
   
   


On Thursday, May 14, 2020 at 10:07:25 PM UTC-4, Motaz Hejaze wrote:
>
> Where does this exception happen ?
> In which file , which line ? 
>
> On Fri, 15 May 2020, 12:51 am Ahmed Khairy,  > wrote:
>
>> Hi all 
>>
>> I am adding a like/unlike button for Posts in a Listview, I am getting an 
>> error: 
>>
>> Exception Value:  Related Field got invalid lookup: value
>>
>> here is the Model:
>>
>> class Post(models.Model):
>> designer = models.ForeignKey(User, on_delete=models.CASCADE)
>> title = models.CharField(max_length=100)
>> likes = models.ManyToManyField(User, through="Like", 
>> related_name='liked')
>>
>> def __str__(self):
>> return self.title
>>
>> def get_absolute_url(self):
>> return reverse("score:post-detail", kwargs={'pk': self.pk})
>>
>> class Like(models.Model):
>> user = models.ForeignKey(User, on_delete=models.CASCADE)
>> post = models.ForeignKey(Post, on_delete=models.CASCADE)
>> value = models.CharField(choices=LIKE_CHOICES,
>>  default='Like', max_length=10)
>>
>>def toggle_value(self):
>>if self.value == "Like":
>>self.value = "Unlike"
>>else:
>>self.value = "Like"
>>
>> def __str__(self):
>> return str(self.post.pk)
>>
>> the view:
>>
>> def like_post(request):
>> user = request.user
>> if request.method == 'Post':
>> post_id = request.POST.get('post_id')
>> post_obj = Post.objects.get(id=post_id)
>> like, created = Like.objects.get_or_create(user=user, 
>> post_id=post_id)
>>
>> if not created:
>> like.toggle_value()
>> like.save()
>> return redirect('score:score')
>>
>> class PostListView(ListView):
>> model = Post
>> template_name = "score.html"
>> ordering = ['-date_posted']
>> context_object_name = 'posts'
>> queryset = Post.objects.filter(admin_approved=True)
>> paginate_by = 5
>>
>> def get_queryset(self, **kwargs):
>>queryset = super(PostListView, self).get_queryset(**kwargs):
>>return queryset.annotate(
>>total_liked=Count(
>> 'likes',
>> filter=Q(likes__value="Like")
>>).annotate(
>> user_liked=Case(
>> When(Q(likes__user=self.request.user) & 
>> Q(likes__value="Like"), then=Value(True)),
>> default=Value(False),
>> output_field = BooleanField()
>>)
>>)
>>
>> Here is the template
>>
>> {% for post in posts %}
>>  {{post.title}}
>>
>>
>>{% csrf_token %}
>>> style="font-style: inherit; font-variant: inherit; font-weight: inh
>>
>>

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Exception Value: Related Field got invalid lookup: value

[Ahmed Khairy]

Hi all 

I am adding a like/unlike button for Posts in a Listview, I am getting an 
error: 

Exception Value:  Related Field got invalid lookup: value

here is the Model:

class Post(models.Model):
designer = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
likes = models.ManyToManyField(User, through="Like", related_name='liked')

def __str__(self):
return self.title

def get_absolute_url(self):
return reverse("score:post-detail", kwargs={'pk': self.pk})

class Like(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
post = models.ForeignKey(Post, on_delete=models.CASCADE)
value = models.CharField(choices=LIKE_CHOICES,
 default='Like', max_length=10)

   def toggle_value(self):
   if self.value == "Like":
   self.value = "Unlike"
   else:
   self.value = "Like"

def __str__(self):
return str(self.post.pk)

the view:

def like_post(request):
user = request.user
if request.method == 'Post':
post_id = request.POST.get('post_id')
post_obj = Post.objects.get(id=post_id)
like, created = Like.objects.get_or_create(user=user, post_id=post_id)

if not created:
like.toggle_value()
like.save()
return redirect('score:score')

class PostListView(ListView):
model = Post
template_name = "score.html"
ordering = ['-date_posted']
context_object_name = 'posts'
queryset = Post.objects.filter(admin_approved=True)
paginate_by = 5

def get_queryset(self, **kwargs):
   queryset = super(PostListView, self).get_queryset(**kwargs):
   return queryset.annotate(
   total_liked=Count(
'likes',
filter=Q(likes__value="Like")
   ).annotate(
user_liked=Case(
When(Q(likes__user=self.request.user) & Q(likes__value="Like"), 
then=Value(True)),
default=Value(False),
output_field = BooleanField()
   )
   )

Here is the template

{% for post in posts %}
 {{post.title}}

   
   {% csrf_token %}
   
   {% if post.user_liked %}
Like 
   {% else %}
Unlike 

   {% endif %}
   
   {{post.total_liked}} Likes 
{% endfor %}

Here is the URL 

path('', PostListView.as_view(), name='score'),
path('like/', like_post, name='like_post'),


Thank you 

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How to write a Get_Context_method

[Ahmed Khairy]

Hi,

I have the following context and I am trying to write it correctly in a 
function 

This is context data :

def post_view(request):
qs= Post.objects.all()
user= request.user

context= {
'qs':qs,
'user':user,
} 

I am trying to define it in a class PostListView(ListView):

I need help writing it correctly 

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Re: How to over ride the get context data method in view

[Ahmed Khairy]

still showing the same error

On Wednesday, May 13, 2020 at 2:34:03 PM UTC-4, Yamen Gamal Eldin wrote:
>
> I haven't seen any definition for user within ur function, so 
> Change this 
> post.is_liked = post.likes.filter(user=user).exists()
>
> To this
>
> post.is_liked = post.likes.filter(user=request.user).exists()
>
>
> Le mer. 13 mai 2020 à 19:22, Ahmed Khairy  > a écrit :
>
>> Hi There, 
>>
>> I have rewritten the get_context_data method to be like this but I am 
>> getting name 'user' is not defined:
>>
>>
>> class PostListView(ListView):
>> model = Post
>> template_name = "score.html"
>> ordering = ['-date_posted']
>> context_object_name = 'posts'
>> paginate_by = 5
>>
>> def get_context_data(self, **kwargs):
>> context_data = super(PostListView, self).get_context_data(**
>> kwargs)
>> for post in context_data['posts']:
>> post.is_liked = post.likes.filter(user=user).exists() <- 
>> name 'user' is not defined
>> return context
>>
>> I am also using this template just for testing till fix the issue 
>>
>> Thank you Andreas with me
>>
>>
>> On Wednesday, May 13, 2020 at 12:31:15 PM UTC-4, Andréas Kühne wrote:
>>>
>>> Hi again,
>>>
>>> Bare with me - this is just written in this email - so:
>>>
>>> 1. Your listview is paginated by 5, so it will only show 5 posts - 
>>> that's good for this exercise and how I would solve it.
>>> 2. Rewrite your get_context_data method to iterate over the posts:
>>> def get_context_data(self, **kwargs):
>>> context_data = super(PostListView, 
>>> self).get_context_data(**kwargs)
>>> for post in context_data['posts']:
>>> post.is_liked = post.likes.filter(user=user).exists()
>>> return context
>>>
>>> So now your page should show. In the page template:
>>>
>>> % extends "base.html"%} {% block content %} {% for post in posts %}
>>> {{post.title}}
>>> 
>>>   {% csrf_token 
>>> %} {% if is_like %}   >> type="submit">Unlike
>>>
>>>   {% else %}
>>>   Like
>>>   {% endif %}{% endfor %} {% endblock content %} 
>>>
>>> Something like this should give you the functionality you want - however 
>>> it's still a bit cumbersome.
>>>
>>> Regards,
>>>
>>> Andréas
>>>
>>>
>>> Den ons 13 maj 2020 kl 15:24 skrev Ahmed Khairy :
>>>
>>>> Hi Andréas Kühne,
>>>>
>>>> Regarding the first error
>>>>
>>>> I have a list of posts in the listView and want to add the like button 
>>>> to each post so how should I fix it? 
>>>>
>>>> Thank you 
>>>>
>>>> On Wednesday, May 13, 2020 at 6:08:31 AM UTC-4, Andréas Kühne wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> There are a couple of errors in your code:
>>>>>
>>>>> 1. You are using a ListView and then trying to get an individual post? 
>>>>> That is really strange
>>>>> 2. In your get_context_data method - you first get the context data, 
>>>>> update it and then you set it to a new dict, so everything is reset in 
>>>>> the 
>>>>> dict.
>>>>> 3. you are trying to get the absolut url for your post, but aren't 
>>>>> showing any post detail view.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Andréas
>>>>>
>>>>>
>>>>> Den ons 13 maj 2020 kl 06:46 skrev Ahmed Khairy >>>> >:
>>>>>
>>>>>> I am currently trying to create a like button for my posts in Django
>>>>>>
>>>>>> I have reached to the part where I can add a like but I am facing 
>>>>>> difficulty writing the code related to the view which linking the 
>>>>>> PostListView if there is user who liked it or not. I am getting an 
>>>>>> error: 
>>>>>> page Error 404 although everything is correct
>>>>>>
>>>>>>
>>>>>> this the views: 
>>>>>>
>>>>>>
>>>>>> class PostListView(ListView):
>

Re: How to over ride the get context data method in view

[Ahmed Khairy]

Hi There, 

I have rewritten the get_context_data method to be like this but I am 
getting name 'user' is not defined:


class PostListView(ListView):
model = Post
template_name = "score.html"
ordering = ['-date_posted']
context_object_name = 'posts'
paginate_by = 5

def get_context_data(self, **kwargs):
context_data = super(PostListView, self).get_context_data(**kwargs)
for post in context_data['posts']:
post.is_liked = post.likes.filter(user=user).exists() <- 
name 'user' is not defined
return context

I am also using this template just for testing till fix the issue 

Thank you Andreas with me


On Wednesday, May 13, 2020 at 12:31:15 PM UTC-4, Andréas Kühne wrote:
>
> Hi again,
>
> Bare with me - this is just written in this email - so:
>
> 1. Your listview is paginated by 5, so it will only show 5 posts - that's 
> good for this exercise and how I would solve it.
> 2. Rewrite your get_context_data method to iterate over the posts:
> def get_context_data(self, **kwargs):
> context_data = super(PostListView, self).get_context_data(**kwargs)
> for post in context_data['posts']:
> post.is_liked = post.likes.filter(user=user).exists()
> return context
>
> So now your page should show. In the page template:
>
> % extends "base.html"%} {% block content %} {% for post in posts %}
> {{post.title}}
> 
>   {% csrf_token %} 
> {% if is_like %}type="submit">Unlike
>
>   {% else %}
>   Like
>   {% endif %}{% endfor %} {% endblock content %} 
>
> Something like this should give you the functionality you want - however 
> it's still a bit cumbersome.
>
> Regards,
>
> Andréas
>
>
> Den ons 13 maj 2020 kl 15:24 skrev Ahmed Khairy  >:
>
>> Hi Andréas Kühne,
>>
>> Regarding the first error
>>
>> I have a list of posts in the listView and want to add the like button to 
>> each post so how should I fix it? 
>>
>> Thank you 
>>
>> On Wednesday, May 13, 2020 at 6:08:31 AM UTC-4, Andréas Kühne wrote:
>>>
>>> Hi,
>>>
>>> There are a couple of errors in your code:
>>>
>>> 1. You are using a ListView and then trying to get an individual post? 
>>> That is really strange
>>> 2. In your get_context_data method - you first get the context data, 
>>> update it and then you set it to a new dict, so everything is reset in the 
>>> dict.
>>> 3. you are trying to get the absolut url for your post, but aren't 
>>> showing any post detail view.
>>>
>>> Regards,
>>>
>>> Andréas
>>>
>>>
>>> Den ons 13 maj 2020 kl 06:46 skrev Ahmed Khairy :
>>>
>>>> I am currently trying to create a like button for my posts in Django
>>>>
>>>> I have reached to the part where I can add a like but I am facing 
>>>> difficulty writing the code related to the view which linking the 
>>>> PostListView if there is user who liked it or not. I am getting an error: 
>>>> page Error 404 although everything is correct
>>>>
>>>>
>>>> this the views: 
>>>>
>>>>
>>>> class PostListView(ListView):
>>>> model = Post
>>>> template_name = "score.html"
>>>> ordering = ['-date_posted']
>>>> context_object_name = 'posts'
>>>> queryset = Post.objects.filter(admin_approved=True)
>>>> paginate_by = 5
>>>>
>>>> def get_context_data(self, **kwargs):
>>>> post = get_object_or_404(Post, id=self.request.POST.get(
>>>> 'post_id'))
>>>> context = super(PostListView, self).get_context_data(**kwargs)
>>>> context['posts'][0].likes.filter(id=self.request.user.id).
>>>> exists()
>>>> is_liked = False
>>>> if post.likes.filter(id=self.request.user.id).exists():
>>>> is_liked = True
>>>> context = {'post': post,
>>>>'is_like': is_liked,
>>>>}
>>>> return context
>>>>
>>>>
>>>>
>>>> def like_post(request):
>>>> post = get_object_or_404(Post, id=request.POST.get('post_id'))
>>>> is_liked = False
>>>> if post.likes.filter(id=request.user.id).exist

Re: How to over ride the get context data method in view

[Ahmed Khairy]

Hi Andréas Kühne,

Regarding the first error

I have a list of posts in the listView and want to add the like button to 
each post so how should I fix it? 

Thank you 

On Wednesday, May 13, 2020 at 6:08:31 AM UTC-4, Andréas Kühne wrote:
>
> Hi,
>
> There are a couple of errors in your code:
>
> 1. You are using a ListView and then trying to get an individual post? 
> That is really strange
> 2. In your get_context_data method - you first get the context data, 
> update it and then you set it to a new dict, so everything is reset in the 
> dict.
> 3. you are trying to get the absolut url for your post, but aren't showing 
> any post detail view.
>
> Regards,
>
> Andréas
>
>
> Den ons 13 maj 2020 kl 06:46 skrev Ahmed Khairy  >:
>
>> I am currently trying to create a like button for my posts in Django
>>
>> I have reached to the part where I can add a like but I am facing 
>> difficulty writing the code related to the view which linking the 
>> PostListView if there is user who liked it or not. I am getting an error: 
>> page Error 404 although everything is correct
>>
>>
>> this the views: 
>>
>>
>> class PostListView(ListView):
>> model = Post
>> template_name = "score.html"
>> ordering = ['-date_posted']
>> context_object_name = 'posts'
>> queryset = Post.objects.filter(admin_approved=True)
>> paginate_by = 5
>>
>> def get_context_data(self, **kwargs):
>> post = get_object_or_404(Post, id=self.request.POST.get('post_id'
>> ))
>> context = super(PostListView, self).get_context_data(**kwargs)
>> context['posts'][0].likes.filter(id=self.request.user.id).exists
>> ()
>> is_liked = False
>> if post.likes.filter(id=self.request.user.id).exists():
>> is_liked = True
>> context = {'post': post,
>>'is_like': is_liked,
>>}
>> return context
>>
>>
>>
>> def like_post(request):
>> post = get_object_or_404(Post, id=request.POST.get('post_id'))
>> is_liked = False
>> if post.likes.filter(id=request.user.id).exists():
>> posts.likes.remove(request.user)
>> is_liked = False
>>
>> else:
>> post.likes.add(request.user)
>> is_liked = True
>>
>> return HttpResponseRedirect(post.get_absolute_url())
>>
>>
>> This is the model 
>>
>>
>> class Post(models.Model):
>> designer = models.ForeignKey(User, on_delete=models.CASCADE)
>> title = models.CharField(max_length=100)
>> date_posted = models.DateTimeField(default=timezone.now)
>> likes = models.ManyToManyField(User, blank=True, related_name='likes')
>>
>> def __str__(self):
>> return self.title
>>
>> Here is the
>>
>> path('like/', like_post, name='like_post'),
>>
>> here is the template: 
>>
>> {% extends "base.html"%} {% block content %} {% for post in posts %}
>> {{post.title}}
>> 
>>   {% csrf_token %} {% if is_like %}
>>   
>>   Unlike
>>   {% else %}
>>   Like
>>   {% endif %}Likes 
>>
>> {% endfor %} {% endblock content %} 
>>
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/583492d8-5252-4f86-8e8f-7593b582d404%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/django-users/583492d8-5252-4f86-8e8f-7593b582d404%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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How to over ride the get context data method in view

[Ahmed Khairy]

I am currently trying to create a like button for my posts in Django

I have reached to the part where I can add a like but I am facing 
difficulty writing the code related to the view which linking the 
PostListView if there is user who liked it or not. I am getting an error: 
page Error 404 although everything is correct


this the views: 


class PostListView(ListView):
model = Post
template_name = "score.html"
ordering = ['-date_posted']
context_object_name = 'posts'
queryset = Post.objects.filter(admin_approved=True)
paginate_by = 5

def get_context_data(self, **kwargs):
post = get_object_or_404(Post, id=self.request.POST.get('post_id'))
context = super(PostListView, self).get_context_data(**kwargs)
context['posts'][0].likes.filter(id=self.request.user.id).exists()
is_liked = False
if post.likes.filter(id=self.request.user.id).exists():
is_liked = True
context = {'post': post,
   'is_like': is_liked,
   }
return context



def like_post(request):
post = get_object_or_404(Post, id=request.POST.get('post_id'))
is_liked = False
if post.likes.filter(id=request.user.id).exists():
posts.likes.remove(request.user)
is_liked = False

else:
post.likes.add(request.user)
is_liked = True

return HttpResponseRedirect(post.get_absolute_url())


This is the model 


class Post(models.Model):
designer = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
date_posted = models.DateTimeField(default=timezone.now)
likes = models.ManyToManyField(User, blank=True, related_name='likes')

def __str__(self):
return self.title

Here is the

path('like/', like_post, name='like_post'),

here is the template: 

{% extends "base.html"%} {% block content %} {% for post in posts %}
{{post.title}}

  {% csrf_token %} {% if is_like %}
  
  Unlike
  {% else %}
  Like
  {% endif %}Likes 

{% endfor %} {% endblock content %} 


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Adding a default Variation when creating a new Item

[Ahmed Khairy]

I have created this code for defining a default everytime I create a new 
product, 

It is working fine and whenever I create a new Item a new variable (size) 
is create 

I want to check whether this code is correct or not as I have had help from 
someone and I think we could have created an easier way for it 


class Item(models.Model):
title = models.CharField(max_length=100)
price = models.DecimalField(decimal_places=2, max_digits=100)
category = models.CharField(choices=CATEGORY_CHOICES, max_length=2)
label = models.CharField(choices=LABEL_CHOICES, max_length=1)
slug = models.SlugField(unique=True)
timestamp = models.DateTimeField(default=timezone.now)
active = models.BooleanField(default=True)

def __str__(self):
return self.title

class VariationManager(models.Manager):
def all(self):
return super(VariationManager, self).filter(active=True)

def sizes(self):
return self.all().filter(category='size')

def colors(self):
return self.all().filter(category='color')


VAR_CATEGORIES = (
('size', 'size',),
('color', 'color',),
('package', 'package'),
)


class Variation(models.Model):
item = models.ForeignKey(Item, on_delete=models.CASCADE)
category = models.CharField(
max_length=120, choices=VAR_CATEGORIES, default='size')
title = models.CharField(max_length=120)
objects = VariationManager()
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
active = models.BooleanField(default=True)

def __str__(self):
return self.title

@receiver(post_save, sender=Item)
def add_default_Variant(sender, instance, **kwargs):
small_size = Variation.objects.create(
item=instance, category='size', title='Small')
medium_size = Variation.objects.create(
item=instance, category='size', title='Medium')
large_size = Variation.objects.create(
item=instance, category='size', title='Large')


@receiver(post_save, sender=Item)
def add_default_Variant(sender, instance, **kwargs):
variant, created = Variation.objects.get_or_create(
title="Small", item=instance)
variant, created = Variation.objects.get_or_create(
title="Medium", item=instance)
variant, created = Variation.objects.get_or_create(
title="Large", item=instance)
print(f"default variant created : {variant}")

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Messages not appearing after creating an app for it in Django

[Ahmed Khairy]

I created an app called marketing app which customizes messages to be written 
on top of website page. My problem is that these messages are not showing when 
everything is configured and I don't know why is that might be the template 
because {{ marketing_message.message}} is only not showing

This is the model of the Marketing App

class MarketingMessage(models.Model):
message = models.CharField(max_length=120)
active = models.BooleanField(default=False)
featured = models.BooleanField(default=False)
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
start_date = models.DateTimeField(
auto_now_add=False, auto_now=False, null=True, blank=True)
end = models.DateTimeField(
auto_now_add=False, auto_now=False, null=True, blank=True)

def __str__(self):
return str(self.message[:12])

this is the views for the core app:

class HomeView(ListView):
model = Item
paginate_by = 10
template_name = "home.html"

def get_context_data(self, **kwargs):
context = super(HomeView, self).get_context_data(**kwargs)
context['marketing_message'] = MarketingMessage.objects.all()

this is the template:
{% if marketing_message %}

×

Marketing Message ! :  {{ marketing_message.message}}
   

{% endif  %}

This is the admin.py of marketing

from django.contrib import admin
from .models import MarketingMessage
# Register your models here.


class MarketingMessageAdmin(admin.ModelAdmin):
class Meta:
model = MarketingMessage


admin.site.register(MarketingMessage, MarketingMessageAdmin)


return context

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How to create variables for an e-commerce website

[Ahmed Khairy]

Hi am looking for resources to create variables such as size and color to 
an e-commerce website 

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Template Variations title not showing

[Ahmed Khairy]

Hello all,

I have made a variation to an Item class in models.py and I think i got the 
template syntax right but apparently there are something wrong which i 
can't figure it out

Here is the model

class Item(models.Model):
title = models.CharField(max_length=100)
description = models.TextField()
price = models.FloatField()
slug = models.SlugField(unique=True)
image = models.ImageField(blank=False, upload_to='approved designs')


def __str__(self):
return self.title

class Meta:
unique_together = ('title', 'slug')
class Variation(models.Model):
item = models.ForeignKey(Item, on_delete=models.CASCADE)
title = models.CharField(max_length=120)
image = models.ImageField(null=True, blank=True)
price = models.FloatField(null=True, blank=True)

def __str__(self):
return self.title

and here is the template

{% if item.variation_set.all %}

{% for items in item.variation_set.all %}
{{title.title|capfirst}}
{% endfor %}

{% endif %}

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How to get previously uploaded Images in Django

[Ahmed Khairy]

I am using Django 2.2 to make a project where designers upload designs and 
when I want to post them from admin, I want to choose their names and after 
I choose their names only their designs appear in the drop down list. So 
far I have reach the reach the designer name in a drop down list but I 
don't know how to link only their designs in the designs drop list.

I am using 2 different apps: 1."Score" where designers can upload their 
designs
2."Core" where I can list the items

First in the Score .model where designers upload the designs

class Post(models.Model):
designer_name = models.ForeignKey(User, on_delete=models.CASCADE)
design = models.ImageField(
blank=False, null=True, upload_to='new designs')
title = models.CharField(max_length=100)

def __str__(self):
return self.title

def get_absolute_url(self):
return reverse("score:post-detail", kwargs={"pk": self.pk})

Second in the Core App Model:

class Item(models.Model):
title = models.CharField(max_length=100)
description = models.TextField()
price = models.FloatField()
designer_name = models.ForeignKey(User, on_delete=models.CASCADE)
image = models.ImageField(blank=False, upload_to='imgs') **How can I make 
this a drop down list with the selected user's (designer's) all previously 
uploaded images to choose from instead of uploading new images**


def __str__(self):
return self.title

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Testing an online payment Form using Django Keep getting Not Authenticated Error. Is it because of the Testing Credit Card numbers?

[Ahmed Khairy]

I am making a project for an online payment e-commerce

I think I got everything right as am following a Tutorial

Keep getting this Error: Not Authenticated Error I used the testing CC 
Numbers for testing purposes

My question is the following codes correct and I'm getting Not 
Authenticated Error because they are testing Credit Card Numbers.?


class PaymentView(View):
def get(self, *args, **kwargs):
# order
return render(self.request, "payment.html")
# `source` is obtained with Stripe.js; see 
https://stripe.com/docs/payments/accept-a-payment-charges#web-create-token
def post(self, *args, **kwargs):
order = Order.objects.get(user=self.request.user, ordered=False)
token = self.request.POST.get('stripeToken')
amount = int(order.get_total() * 100)

try:
charge = stripe.Charge.create(
amount=amount,  # cents
currency="usd",
source=token,
)
# create payment
payment = Payment()
payment.stripe_charge_id = charge['id']
payment.user = self.request.user
payment.amount = order.get_total()
payment.save()

# assign the payment to the order
order.ordered = True
order.payment = payment
order.save()

messages.success(self.request, "Your Order was Successful ! ")
return redirect("/")

except stripe.error.CardError as e:
body = e.json_body
err = body.get('error', {})
messages.error(self.request, f"{err.get('message')}")
# Since it's a decline, stripe.error.CardError will be caught
return redirect("/")

except stripe.error.RateLimitError as e:
# Too many requests made to the API too quickly
messages.error(self.request, "Rate Limit Error")
return redirect("/")

except stripe.error.InvalidRequestError as e:
# Invalid parameters were supplied to Stripe's API
messages.error(self.request, "Invalid Parameters")
return redirect("/")

except stripe.error.AuthenticationError as e:
# Authentication with Stripe's API failed
# (maybe you changed API keys recently)
messages.error(self.request, "Not Authenticated")
return redirect("/")

except stripe.error.APIConnectionError as e:
# Network communication with Stripe failed
messages.error(self.request, "Network Error")
return redirect("/")

except stripe.error.StripeError as e:
# Display a very generic error to the user, and maybe send
# yourself an email
messages.error(
self.request, "Something went wrong. You were not charged. 
Please Try Again.")
return redirect("/")

except Exception as e:
# Something else happened, completely unrelated to Stripe
# send an email to ourselves
messages.error(
self.request, "A serious Error Occured. We have been notified.")
return redirect("/")

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Re: NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

I added the new app urls to the main project URLs I think this was the 
mistake but now I have to change the URLs location as I'm getting 404 error 
score/score/

Thank you,  your first question is what made me find the issue

On Saturday, April 25, 2020 at 1:13:08 AM UTC-4, Ahmed Khairy wrote:
>
> Yes i tried other urls from other models it worked but anything related to 
> the new app is not linked
>
> On Saturday, April 25, 2020 at 12:42:14 AM UTC-4, Motaz Hejaze wrote:
>>
>> did you try to change the name 'post-create' to something else ?
>>
>> On Sat, Apr 25, 2020 at 6:34 AM Ahmed Khairy  
>> wrote:
>>
>>> yes 
>>>
>>> INSTALLED_APPS = [
>>> 'django.contrib.admin',
>>> 'django.contrib.auth',
>>> 'django.contrib.contenttypes',
>>> 'django.contrib.sessions',
>>> 'django.contrib.messages',
>>> 'django.contrib.staticfiles',
>>> 'django.contrib.sites',
>>> 'allauth',
>>> 'allauth.account',
>>> 'users.apps.UsersConfig',
>>> 'core',
>>> 'crispy_forms',
>>> 'django_filters',
>>> 'score'
>>> ]
>>>
>>>
>>> On Saturday, April 25, 2020 at 12:31:30 AM UTC-4, Motaz Hejaze wrote:
>>>>
>>>> did you add your new app to installed apps in settings.py
>>>>
>>>> On Sat, Apr 25, 2020 at 6:29 AM Motaz Hejaze  wrote:
>>>>
>>>>> you don't need the include part because you already copied the class 
>>>>> to the new app
>>>>>
>>>>> On Sat, Apr 25, 2020 at 6:16 AM Ahmed Khairy  
>>>>> wrote:
>>>>>
>>>>>> I tried to include the urls 
>>>>>>
>>>>>> originally it was 
>>>>>>
>>>>>> path('score/new/', PostCreateView.as_view(), name='post-create'),
>>>>>>
>>>>>> but both didn't work 
>>>>>>
>>>>>> On Friday, April 24, 2020 at 11:29:41 PM UTC-4, Ahmed Khairy wrote:
>>>>>>>
>>>>>>> I have created a new app in a project and moved one of the classes 
>>>>>>> from one app to the new app 
>>>>>>>
>>>>>>> I checked every step but I keep getting No Reverse match I wrote the 
>>>>>>> name of the app before the namespace but still 
>>>>>>>
>>>>>>>
>>>>>>> HTML : 
>>>>>>>  
>>>>>>>   Upload Designs 
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> URLS 
>>>>>>> from django.urls import include, path
>>>>>>>
>>>>>>> from . import views
>>>>>>> from .views import (PostCreateView, PostDeleteView, PostDetailView,
>>>>>>> PostListView, PostUpdateView, UserPostListView)
>>>>>>>
>>>>>>> app_name = 'score'
>>>>>>>
>>>>>>> urlpatterns = [
>>>>>>> path('user/', UserPostListView.as_view(), name='
>>>>>>> user-posts'),
>>>>>>> path('score/', PostListView.as_view(), name='score'),
>>>>>>> path('score//', PostDetailView.as_view(), name='
>>>>>>> post-detail'),
>>>>>>> path('score/new/', include(('post-create.urls', 'post-create'
>>>>>>> ), PostCreateView.as_view(), name='post-create'),
>>>>>>> path('score//update/', PostUpdateView.as_view(), name='
>>>>>>> post-update'),
>>>>>>> path('score//delete/', PostDeleteView.as_view(), name='
>>>>>>> post-delete')
>>>>>>> ]
>>>>>>>
>>>>>>>
>>>>>>> settings:
>>>>>>> from django.conf import settings
>>>>>>> from django.conf.urls.static import static
>>>>>>> from django.contrib import admin
>>>>>>> from django.contrib.auth import views as auth_views
>>>>>>> 

Re: NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

Yes i tried other urls from other models it worked but anything related to 
the new app is not linked

On Saturday, April 25, 2020 at 12:42:14 AM UTC-4, Motaz Hejaze wrote:
>
> did you try to change the name 'post-create' to something else ?
>
> On Sat, Apr 25, 2020 at 6:34 AM Ahmed Khairy  > wrote:
>
>> yes 
>>
>> INSTALLED_APPS = [
>> 'django.contrib.admin',
>> 'django.contrib.auth',
>> 'django.contrib.contenttypes',
>> 'django.contrib.sessions',
>> 'django.contrib.messages',
>> 'django.contrib.staticfiles',
>> 'django.contrib.sites',
>> 'allauth',
>> 'allauth.account',
>> 'users.apps.UsersConfig',
>> 'core',
>> 'crispy_forms',
>> 'django_filters',
>> 'score'
>> ]
>>
>>
>> On Saturday, April 25, 2020 at 12:31:30 AM UTC-4, Motaz Hejaze wrote:
>>>
>>> did you add your new app to installed apps in settings.py
>>>
>>> On Sat, Apr 25, 2020 at 6:29 AM Motaz Hejaze  wrote:
>>>
>>>> you don't need the include part because you already copied the class to 
>>>> the new app
>>>>
>>>> On Sat, Apr 25, 2020 at 6:16 AM Ahmed Khairy  
>>>> wrote:
>>>>
>>>>> I tried to include the urls 
>>>>>
>>>>> originally it was 
>>>>>
>>>>> path('score/new/', PostCreateView.as_view(), name='post-create'),
>>>>>
>>>>> but both didn't work 
>>>>>
>>>>> On Friday, April 24, 2020 at 11:29:41 PM UTC-4, Ahmed Khairy wrote:
>>>>>>
>>>>>> I have created a new app in a project and moved one of the classes 
>>>>>> from one app to the new app 
>>>>>>
>>>>>> I checked every step but I keep getting No Reverse match I wrote the 
>>>>>> name of the app before the namespace but still 
>>>>>>
>>>>>>
>>>>>> HTML : 
>>>>>>  
>>>>>>   Upload Designs 
>>>>>>
>>>>>>
>>>>>>
>>>>>> URLS 
>>>>>> from django.urls import include, path
>>>>>>
>>>>>> from . import views
>>>>>> from .views import (PostCreateView, PostDeleteView, PostDetailView,
>>>>>> PostListView, PostUpdateView, UserPostListView)
>>>>>>
>>>>>> app_name = 'score'
>>>>>>
>>>>>> urlpatterns = [
>>>>>> path('user/', UserPostListView.as_view(), name='
>>>>>> user-posts'),
>>>>>> path('score/', PostListView.as_view(), name='score'),
>>>>>> path('score//', PostDetailView.as_view(), name='
>>>>>> post-detail'),
>>>>>> path('score/new/', include(('post-create.urls', 'post-create'
>>>>>> ), PostCreateView.as_view(), name='post-create'),
>>>>>> path('score//update/', PostUpdateView.as_view(), name='
>>>>>> post-update'),
>>>>>> path('score//delete/', PostDeleteView.as_view(), name='
>>>>>> post-delete')
>>>>>> ]
>>>>>>
>>>>>>
>>>>>> settings:
>>>>>> from django.conf import settings
>>>>>> from django.conf.urls.static import static
>>>>>> from django.contrib import admin
>>>>>> from django.contrib.auth import views as auth_views
>>>>>> from django.contrib.staticfiles.urls import staticfiles_urlpatterns
>>>>>> from django.urls import include, path
>>>>>>
>>>>>> from users import views as user_views
>>>>>>
>>>>>> urlpatterns = [
>>>>>> path('admin/', admin.site.urls),
>>>>>> path('accounts/', include('allauth.urls')),
>>>>>> path('', include('core.urls', namespace='core')),
>>>>>> path('register/', user_views.register, name='register'),
>>>>>>

Re: NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

yes 

INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.sites',
'allauth',
'allauth.account',
'users.apps.UsersConfig',
'core',
'crispy_forms',
'django_filters',
'score'
]


On Saturday, April 25, 2020 at 12:31:30 AM UTC-4, Motaz Hejaze wrote:
>
> did you add your new app to installed apps in settings.py
>
> On Sat, Apr 25, 2020 at 6:29 AM Motaz Hejaze  > wrote:
>
>> you don't need the include part because you already copied the class to 
>> the new app
>>
>> On Sat, Apr 25, 2020 at 6:16 AM Ahmed Khairy > > wrote:
>>
>>> I tried to include the urls 
>>>
>>> originally it was 
>>>
>>> path('score/new/', PostCreateView.as_view(), name='post-create'),
>>>
>>> but both didn't work 
>>>
>>> On Friday, April 24, 2020 at 11:29:41 PM UTC-4, Ahmed Khairy wrote:
>>>>
>>>> I have created a new app in a project and moved one of the classes from 
>>>> one app to the new app 
>>>>
>>>> I checked every step but I keep getting No Reverse match I wrote the 
>>>> name of the app before the namespace but still 
>>>>
>>>>
>>>> HTML : 
>>>>  
>>>>  >>>  > Upload Designs 
>>>>
>>>>
>>>>
>>>> URLS 
>>>> from django.urls import include, path
>>>>
>>>> from . import views
>>>> from .views import (PostCreateView, PostDeleteView, PostDetailView,
>>>> PostListView, PostUpdateView, UserPostListView)
>>>>
>>>> app_name = 'score'
>>>>
>>>> urlpatterns = [
>>>> path('user/', UserPostListView.as_view(), name='
>>>> user-posts'),
>>>> path('score/', PostListView.as_view(), name='score'),
>>>> path('score//', PostDetailView.as_view(), name='post-detail
>>>> '),
>>>> path('score/new/', include(('post-create.urls', 'post-create'
>>>> ), PostCreateView.as_view(), name='post-create'),
>>>> path('score//update/', PostUpdateView.as_view(), name='
>>>> post-update'),
>>>> path('score//delete/', PostDeleteView.as_view(), name='
>>>> post-delete')
>>>> ]
>>>>
>>>>
>>>> settings:
>>>> from django.conf import settings
>>>> from django.conf.urls.static import static
>>>> from django.contrib import admin
>>>> from django.contrib.auth import views as auth_views
>>>> from django.contrib.staticfiles.urls import staticfiles_urlpatterns
>>>> from django.urls import include, path
>>>>
>>>> from users import views as user_views
>>>>
>>>> urlpatterns = [
>>>> path('admin/', admin.site.urls),
>>>> path('accounts/', include('allauth.urls')),
>>>> path('', include('core.urls', namespace='core')),
>>>> path('register/', user_views.register, name='register'),
>>>> path('profile/', user_views.profile, name='profile'),
>>>>
>>>> views
>>>> from django.contrib import messages
>>>> from django.contrib.auth.mixins import
>>>>  LoginRequiredMixin, UserPassesTestMixin
>>>> from django.contrib.auth.models import User
>>>> from django.contrib.messages.views import SuccessMessageMixin
>>>> from django.http import HttpResponse
>>>> from django.shortcuts import get_object_or_404, redirect, render
>>>> from django.utils import timezone
>>>> from django.views.generic import (
>>>> CreateView, DeleteView, DetailView, ListView, UpdateView)
>>>>
>>>> from .models import Post
>>>>
>>>>
>>>>
>>>> class PostListView(ListView):
>>>> model = Post
>>>> template_name = "score.html"
>>>> context_object_name = 'posts'
>>>>
>>>>

Re: NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

I tried to include the urls 

originally it was 

path('score/new/', PostCreateView.as_view(), name='post-create'),

but both didn't work 

On Friday, April 24, 2020 at 11:29:41 PM UTC-4, Ahmed Khairy wrote:
>
> I have created a new app in a project and moved one of the classes from 
> one app to the new app 
>
> I checked every step but I keep getting No Reverse match I wrote the name 
> of the app before the namespace but still 
>
>
> HTML : 
>  
>> Upload Designs 
>
>
>
> URLS 
> from django.urls import include, path
>
> from . import views
> from .views import (PostCreateView, PostDeleteView, PostDetailView,
> PostListView, PostUpdateView, UserPostListView)
>
> app_name = 'score'
>
> urlpatterns = [
> path('user/', UserPostListView.as_view(), name='
> user-posts'),
> path('score/', PostListView.as_view(), name='score'),
> path('score//', PostDetailView.as_view(), name='post-detail'),
> path('score/new/', include(('post-create.urls', 'post-create'
> ), PostCreateView.as_view(), name='post-create'),
> path('score//update/', PostUpdateView.as_view(), name='
> post-update'),
> path('score//delete/', PostDeleteView.as_view(), name='
> post-delete')
> ]
>
>
> settings:
> from django.conf import settings
> from django.conf.urls.static import static
> from django.contrib import admin
> from django.contrib.auth import views as auth_views
> from django.contrib.staticfiles.urls import staticfiles_urlpatterns
> from django.urls import include, path
>
> from users import views as user_views
>
> urlpatterns = [
> path('admin/', admin.site.urls),
> path('accounts/', include('allauth.urls')),
> path('', include('core.urls', namespace='core')),
> path('register/', user_views.register, name='register'),
> path('profile/', user_views.profile, name='profile'),
>
> views
> from django.contrib import messages
> from django.contrib.auth.mixins import
>  LoginRequiredMixin, UserPassesTestMixin
> from django.contrib.auth.models import User
> from django.contrib.messages.views import SuccessMessageMixin
> from django.http import HttpResponse
> from django.shortcuts import get_object_or_404, redirect, render
> from django.utils import timezone
> from django.views.generic import (
> CreateView, DeleteView, DetailView, ListView, UpdateView)
>
> from .models import Post
>
>
>
> class PostListView(ListView):
> model = Post
> template_name = "score.html"
> context_object_name = 'posts'
>
> class PostCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
> model = Post
> fields = ['caption', 'design']
> template_name = "score/post_form.html"
>
> def form_valid(self, form):
> form.instance.author = self.request.user
> return super().form_valid(form)
>
> models
>
> from django.conf import settings
> from django.contrib.auth.models import User
> from django.db import models
> from django.shortcuts import reverse
> from django.utils import timezone
>
>
> # Create your models here.
> class Post(models.Model):
> author = models.ForeignKey(User, on_delete=models.CASCADE)
> design = models.ImageField(
> blank=False, null=True, upload_to='new designs')
>
> def __str__(self):
> return self.caption
>
> def get_absolute_url(self):
> return reverse("score:post-detail", kwargs={"pk": self.pk})
>
>
>
>
>

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Re: NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

I was trying to include the urls

originally it was 

path('score/new/', PostCreateView.as_view(), name='post-create'),

but still both not working 

On Friday, April 24, 2020 at 11:33:48 PM UTC-4, Motaz Hejaze wrote:
>
> path('score/new/', include(('post-create.urls', 'post-create'
> ), PostCreateView.as_view(), name='post-create'), 
>
> explain this line ?
>
> On Sat, Apr 25, 2020 at 5:30 AM Ahmed Khairy  > wrote:
>
>> I have created a new app in a project and moved one of the classes from 
>> one app to the new app 
>>
>> I checked every step but I keep getting No Reverse match I wrote the name 
>> of the app before the namespace but still 
>>
>>
>> HTML : 
>>  
>>  >  > Upload Designs 
>>
>>
>>
>> URLS 
>> from django.urls import include, path
>>
>> from . import views
>> from .views import (PostCreateView, PostDeleteView, PostDetailView,
>> PostListView, PostUpdateView, UserPostListView)
>>
>> app_name = 'score'
>>
>> urlpatterns = [
>> path('user/', UserPostListView.as_view(), name='
>> user-posts'),
>> path('score/', PostListView.as_view(), name='score'),
>> path('score//', PostDetailView.as_view(), name='post-detail'
>> ),
>> path('score/new/', include(('post-create.urls', 'post-create'
>> ), PostCreateView.as_view(), name='post-create'),
>> path('score//update/', PostUpdateView.as_view(), name='
>> post-update'),
>> path('score//delete/', PostDeleteView.as_view(), name='
>> post-delete')
>> ]
>>
>>
>> settings:
>> from django.conf import settings
>> from django.conf.urls.static import static
>> from django.contrib import admin
>> from django.contrib.auth import views as auth_views
>> from django.contrib.staticfiles.urls import staticfiles_urlpatterns
>> from django.urls import include, path
>>
>> from users import views as user_views
>>
>> urlpatterns = [
>> path('admin/', admin.site.urls),
>> path('accounts/', include('allauth.urls')),
>> path('', include('core.urls', namespace='core')),
>> path('register/', user_views.register, name='register'),
>> path('profile/', user_views.profile, name='profile'),
>>
>> views
>> from django.contrib import messages
>> from django.contrib.auth.mixins import
>>  LoginRequiredMixin, UserPassesTestMixin
>> from django.contrib.auth.models import User
>> from django.contrib.messages.views import SuccessMessageMixin
>> from django.http import HttpResponse
>> from django.shortcuts import get_object_or_404, redirect, render
>> from django.utils import timezone
>> from django.views.generic import (
>> CreateView, DeleteView, DetailView, ListView, UpdateView)
>>
>> from .models import Post
>>
>>
>>
>> class PostListView(ListView):
>> model = Post
>> template_name = "score.html"
>> context_object_name = 'posts'
>>
>> class PostCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView
>> ):
>> model = Post
>> fields = ['caption', 'design']
>> template_name = "score/post_form.html"
>>
>> def form_valid(self, form):
>> form.instance.author = self.request.user
>> return super().form_valid(form)
>>
>> models
>>
>> from django.conf import settings
>> from django.contrib.auth.models import User
>> from django.db import models
>> from django.shortcuts import reverse
>> from django.utils import timezone
>>
>>
>> # Create your models here.
>> class Post(models.Model):
>> author = models.ForeignKey(User, on_delete=models.CASCADE)
>> design = models.ImageField(
>> blank=False, null=True, upload_to='new designs')
>>
>> def __str__(self):
>> return self.caption
>>
>> def get_absolute_url(self):
>> return reverse("score:post-detail", kwargs={"pk": self.pk})
>>
>>
>>
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/a5bf9872-8877-42dd-b76b-cfd1cd316ef5%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/django-users/a5bf9872-8877-42dd-b76b-cfd1cd316ef5%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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NoReverseMatch at , I have Recently a class from one app and added it to a new app and I revised everything but keep receiving this Error, what did i miss?

[Ahmed Khairy]

I have created a new app in a project and moved one of the classes from one 
app to the new app 

I checked every step but I keep getting No Reverse match I wrote the name 
of the app before the namespace but still 


HTML : 
 
  Upload Designs 



URLS 
from django.urls import include, path

from . import views
from .views import (PostCreateView, PostDeleteView, PostDetailView,
PostListView, PostUpdateView, UserPostListView)

app_name = 'score'

urlpatterns = [
path('user/', UserPostListView.as_view(), name='user-posts
'),
path('score/', PostListView.as_view(), name='score'),
path('score//', PostDetailView.as_view(), name='post-detail'),
path('score/new/', include(('post-create.urls', 'post-create'
), PostCreateView.as_view(), name='post-create'),
path('score//update/', PostUpdateView.as_view(), name='
post-update'),
path('score//delete/', PostDeleteView.as_view(), name='
post-delete')
]


settings:
from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.contrib.auth import views as auth_views
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from django.urls import include, path

from users import views as user_views

urlpatterns = [
path('admin/', admin.site.urls),
path('accounts/', include('allauth.urls')),
path('', include('core.urls', namespace='core')),
path('register/', user_views.register, name='register'),
path('profile/', user_views.profile, name='profile'),

views
from django.contrib import messages
from django.contrib.auth.mixins import
 LoginRequiredMixin, UserPassesTestMixin
from django.contrib.auth.models import User
from django.contrib.messages.views import SuccessMessageMixin
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect, render
from django.utils import timezone
from django.views.generic import (
CreateView, DeleteView, DetailView, ListView, UpdateView)

from .models import Post



class PostListView(ListView):
model = Post
template_name = "score.html"
context_object_name = 'posts'

class PostCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
model = Post
fields = ['caption', 'design']
template_name = "score/post_form.html"

def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form)

models

from django.conf import settings
from django.contrib.auth.models import User
from django.db import models
from django.shortcuts import reverse
from django.utils import timezone


# Create your models here.
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
design = models.ImageField(
blank=False, null=True, upload_to='new designs')

def __str__(self):
return self.caption

def get_absolute_url(self):
return reverse("score:post-detail", kwargs={"pk": self.pk})




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Re: Success Message after Submitting a form

[Ahmed Khairy]

Thank you Ramadan Kareem

On Friday, April 24, 2020 at 12:11:09 AM UTC-4, mohamed khaled wrote:
>
> just use SuccessMessageMixin
>
> from django.contrib.messages.views import SuccessMessageMixin
>
> class PostCreateView(LoginRequiredMixin,SuccessMessageMixin, CreateView):
> model = Post
> fields = ['caption', 'design']
> template_name = "post_form.html"
> success_url = '/score'
> success_message = "Your Design has been submitted for Review"
>
>
>
> it will work 
>
> On Friday, 24 April 2020 03:24:56 UTC+2, Ahmed Khairy wrote:
>>
>> I have created this class with the success message but I am not receiving 
>> the success message I requested, other pages are showing them but this one 
>> is not 
>>
>> What might be wrong? 
>> In the views: 
>> class PostCreateView(LoginRequiredMixin, CreateView):
>> model = Post
>> fields = ['caption', 'design']
>> template_name = "post_form.html"
>> success_url = '/score'
>> success_message = "Your Design has been submitted for Review"
>>
>> def form_valid(self, form):
>> form.instance.author = self.request.user
>> return super().form_valid(form) 
>>
>>
>> in the HTML 
>>
>> {% if messages %}
>> {% for message in messages %}
>> 
>> {{ message }}
>> 
>> {% endfor %}
>> {% endif  %}
>>
>>
>>
>> Thank you 
>>
>

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Success Message after Submitting a form

[Ahmed Khairy]

I have created this class with the success message but I am not receiving 
the success message I requested, other pages are showing them but this one 
is not 

What might be wrong? 
In the views: 
class PostCreateView(LoginRequiredMixin, CreateView):
model = Post
fields = ['caption', 'design']
template_name = "post_form.html"
success_url = '/score'
success_message = "Your Design has been submitted for Review"

def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form) 


in the HTML 
   
{% if messages %}
{% for message in messages %}

{{ message }}

{% endfor %}
{% endif  %}



Thank you 

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Re: save() got an unexpected keyword argument 'force_insert'

[Ahmed Khairy]

Thank you so much it is realyy helpfull. Fixed it 

On Tuesday, April 21, 2020 at 11:23:10 PM UTC-4, Motaz Hejaze wrote:
>
> check this out
>
> https://wsvincent.com/django-allauth-tutorial-custom-user-model/
>
> On Wed, Apr 22, 2020 at 5:18 AM Ahmed Khairy  > wrote:
>
>> What do you mean ? 
>>
>> On Tuesday, April 21, 2020 at 11:13:16 PM UTC-4, Motaz Hejaze wrote:
>>>
>>> did you define managers ?
>>>
>>> On Wed, Apr 22, 2020 at 5:06 AM Ahmed Khairy  
>>> wrote:
>>>
>>>> Model Form 
>>>>
>>>> UserCreationForm
>>>>
>>>> On Tuesday, April 21, 2020 at 11:02:13 PM UTC-4, Motaz Hejaze wrote:
>>>>>
>>>>> what kind of forms is this ? regular form or model form ?
>>>>>
>>>>>
>>>>> On Wed, Apr 22, 2020 at 4:57 AM Ahmed Khairy  
>>>>> wrote:
>>>>>
>>>>>> Hi all, 
>>>>>>
>>>>>> Got this unexpected error all of a sudden, how to fix it. 
>>>>>>
>>>>>> save() got an unexpected keyword argument 'force_insert'
>>>>>>
>>>>>>
>>>>>>
>>>>>> def register(request):
>>>>>> if request.method == 'POST':
>>>>>> form = UserRegisterForm(request.POST)
>>>>>> if form.is_valid():
>>>>>> form.save()
>>>>>> username = form.cleaned_data.get('username')
>>>>>> messages.success(
>>>>>> request, f
>>>>>> 'Your account has been created! You are now able to log in')
>>>>>> return redirect('login')
>>>>>> else:
>>>>>> form = UserRegisterForm()
>>>>>> return render(request, 'register.html', {'form': form})
>>>>>>
>>>>>> -- 
>>>>>> You received this message because you are subscribed to the Google 
>>>>>> Groups "Django users" group.
>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>> send an email to django...@googlegroups.com.
>>>>>> To view this discussion on the web visit 
>>>>>> https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com
>>>>>>  
>>>>>> <https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>>> .
>>>>>>
>>>>> -- 
>>>> You received this message because you are subscribed to the Google 
>>>> Groups "Django users" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send 
>>>> an email to django...@googlegroups.com.
>>>> To view this discussion on the web visit 
>>>> https://groups.google.com/d/msgid/django-users/4a164104-3cab-4d97-a6ac-47b9a3ed98dd%40googlegroups.com
>>>>  
>>>> <https://groups.google.com/d/msgid/django-users/4a164104-3cab-4d97-a6ac-47b9a3ed98dd%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/affd82c8-1b8c-46a0-85c0-a3a5c6939abe%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/django-users/affd82c8-1b8c-46a0-85c0-a3a5c6939abe%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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Re: save() got an unexpected keyword argument 'force_insert'

[Ahmed Khairy]

Thank you so much it realyy helpfull. Fixed it 

On Tuesday, April 21, 2020 at 11:23:10 PM UTC-4, Motaz Hejaze wrote:
>
> check this out
>
> https://wsvincent.com/django-allauth-tutorial-custom-user-model/
>
> On Wed, Apr 22, 2020 at 5:18 AM Ahmed Khairy  > wrote:
>
>> What do you mean ? 
>>
>> On Tuesday, April 21, 2020 at 11:13:16 PM UTC-4, Motaz Hejaze wrote:
>>>
>>> did you define managers ?
>>>
>>> On Wed, Apr 22, 2020 at 5:06 AM Ahmed Khairy  
>>> wrote:
>>>
>>>> Model Form 
>>>>
>>>> UserCreationForm
>>>>
>>>> On Tuesday, April 21, 2020 at 11:02:13 PM UTC-4, Motaz Hejaze wrote:
>>>>>
>>>>> what kind of forms is this ? regular form or model form ?
>>>>>
>>>>>
>>>>> On Wed, Apr 22, 2020 at 4:57 AM Ahmed Khairy  
>>>>> wrote:
>>>>>
>>>>>> Hi all, 
>>>>>>
>>>>>> Got this unexpected error all of a sudden, how to fix it. 
>>>>>>
>>>>>> save() got an unexpected keyword argument 'force_insert'
>>>>>>
>>>>>>
>>>>>>
>>>>>> def register(request):
>>>>>> if request.method == 'POST':
>>>>>> form = UserRegisterForm(request.POST)
>>>>>> if form.is_valid():
>>>>>> form.save()
>>>>>> username = form.cleaned_data.get('username')
>>>>>> messages.success(
>>>>>> request, f
>>>>>> 'Your account has been created! You are now able to log in')
>>>>>> return redirect('login')
>>>>>> else:
>>>>>> form = UserRegisterForm()
>>>>>> return render(request, 'register.html', {'form': form})
>>>>>>
>>>>>> -- 
>>>>>> You received this message because you are subscribed to the Google 
>>>>>> Groups "Django users" group.
>>>>>> To unsubscribe from this group and stop receiving emails from it, 
>>>>>> send an email to django...@googlegroups.com.
>>>>>> To view this discussion on the web visit 
>>>>>> https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com
>>>>>>  
>>>>>> <https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>>> .
>>>>>>
>>>>> -- 
>>>> You received this message because you are subscribed to the Google 
>>>> Groups "Django users" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send 
>>>> an email to django...@googlegroups.com.
>>>> To view this discussion on the web visit 
>>>> https://groups.google.com/d/msgid/django-users/4a164104-3cab-4d97-a6ac-47b9a3ed98dd%40googlegroups.com
>>>>  
>>>> <https://groups.google.com/d/msgid/django-users/4a164104-3cab-4d97-a6ac-47b9a3ed98dd%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/affd82c8-1b8c-46a0-85c0-a3a5c6939abe%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/django-users/affd82c8-1b8c-46a0-85c0-a3a5c6939abe%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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Re: save() got an unexpected keyword argument 'force_insert'

[Ahmed Khairy]

What do you mean ? 

On Tuesday, April 21, 2020 at 11:13:16 PM UTC-4, Motaz Hejaze wrote:
>
> did you define managers ?
>
> On Wed, Apr 22, 2020 at 5:06 AM Ahmed Khairy  > wrote:
>
>> Model Form 
>>
>> UserCreationForm
>>
>> On Tuesday, April 21, 2020 at 11:02:13 PM UTC-4, Motaz Hejaze wrote:
>>>
>>> what kind of forms is this ? regular form or model form ?
>>>
>>>
>>> On Wed, Apr 22, 2020 at 4:57 AM Ahmed Khairy  
>>> wrote:
>>>
>>>> Hi all, 
>>>>
>>>> Got this unexpected error all of a sudden, how to fix it. 
>>>>
>>>> save() got an unexpected keyword argument 'force_insert'
>>>>
>>>>
>>>>
>>>> def register(request):
>>>> if request.method == 'POST':
>>>> form = UserRegisterForm(request.POST)
>>>> if form.is_valid():
>>>> form.save()
>>>> username = form.cleaned_data.get('username')
>>>> messages.success(
>>>> request, f
>>>> 'Your account has been created! You are now able to log in')
>>>> return redirect('login')
>>>> else:
>>>> form = UserRegisterForm()
>>>> return render(request, 'register.html', {'form': form})
>>>>
>>>> -- 
>>>> You received this message because you are subscribed to the Google 
>>>> Groups "Django users" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send 
>>>> an email to django...@googlegroups.com.
>>>> To view this discussion on the web visit 
>>>> https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com
>>>>  
>>>> <https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>> -- 
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>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
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>>  
>> <https://groups.google.com/d/msgid/django-users/4a164104-3cab-4d97-a6ac-47b9a3ed98dd%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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Re: save() got an unexpected keyword argument 'force_insert'

[Ahmed Khairy]

Model Form 

UserCreationForm

On Tuesday, April 21, 2020 at 11:02:13 PM UTC-4, Motaz Hejaze wrote:
>
> what kind of forms is this ? regular form or model form ?
>
>
> On Wed, Apr 22, 2020 at 4:57 AM Ahmed Khairy  > wrote:
>
>> Hi all, 
>>
>> Got this unexpected error all of a sudden, how to fix it. 
>>
>> save() got an unexpected keyword argument 'force_insert'
>>
>>
>>
>> def register(request):
>> if request.method == 'POST':
>> form = UserRegisterForm(request.POST)
>> if form.is_valid():
>> form.save()
>> username = form.cleaned_data.get('username')
>> messages.success(
>> request, f
>> 'Your account has been created! You are now able to log in')
>> return redirect('login')
>> else:
>> form = UserRegisterForm()
>> return render(request, 'register.html', {'form': form})
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to django...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/django-users/be6de004-4a69-4346-8a12-99eced8d76a3%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>

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save() got an unexpected keyword argument 'force_insert'

[Ahmed Khairy]

Hi all, 

Got this unexpected error all of a sudden, how to fix it. 

save() got an unexpected keyword argument 'force_insert'



def register(request):
if request.method == 'POST':
form = UserRegisterForm(request.POST)
if form.is_valid():
form.save()
username = form.cleaned_data.get('username')
messages.success(
request, f
'Your account has been created! You are now able to log in')
return redirect('login')
else:
form = UserRegisterForm()
return render(request, 'register.html', {'form': form})

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Getting approval from Admin first before posting a blog in Django

[Ahmed Khairy]

Hi all, 

I have made a blog as a project and I have set users to submit posts for 
the blog directly but i want to direct this post to the admin first for 
approval before showing on the website. here is the Post Create View Class. 

class PostCreateView(CreateView):
model = Post
fields = ['title', 'content']
template_name = "post_form.html"

def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form)

Thank you in Advance 

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General Question Regarding Django Password Validation differences

[Ahmed Khairy]

I have used UserCreationForm and got this result below with no validations 
regarding the password while there are other Usercreationforms with 
password validations.

I am using Django 2.2 

 


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No Reverse Match Error, When creating a new user (new user application) it should direct back to home (to the core application)

[Ahmed Khairy]

For this project, I have made 2 applications: Core and Users

Creating a new user is the 2nd application.
I am trying to direct the new user after registration to 'home'

I keep getting NoReverse Match Error

This is the view.py this is the code:

def register(request):
if request.method == 'POST':
form = UserCreationForm(request.POST)
if form.is_valid():
form.save()
username = form.cleaned_data.get('username')
messages.success(
request, f'Account created for {username}
! Show us your Designs')
return redirect('home')
else:
form = UserCreationForm()
return render(request, 'register.html', {'form': form})

This is the url.py in the core application: 

urlpatterns = [
path('', HomeView.as_view(), name='home'),
path('checkout/', checkout, name='checkout'),
path('product//', ItemDetailView.as_view(), name='product'),
path('score/', PostListView.as_view(), name='score'),
path('register/', user_views.register, name='register'),
]


What do I need to do to fix this issue, 

Thank you all in advance

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