I'm using django-excel to do this function.
This is my view.py
def import_data(request):
if request.method == "POST":
form = UploadFileForm(request.POST, request.FILES)
if form.is_valid():
request.FILES['file'].save_book_to_database(
models=['contoh_upload'],
initializers=[None,0],
mapdicts=['id','nama','kelas']
)
message = "your upload has been uploaded "
return render(request, 'kastransaksi/transaksi_formupload.html', {'message': message})
else:
message = "Failed Upluad data"
return render(request, 'kastransaksi/transaksi_formupload.html', {'form': form, 'message': message})
else:
form = UploadFileForm()
return render(request, 'kastransaksi/transaksi_formupload.html', {'form': form})
this is my models.py
class contoh_upload(models.Model):
nama = models.CharField(max_length=10, null=True, blank=True)
kelas = models.CharField(max_length=10, null=True, blank=True)
and this is my template.html
<div class="alert-success">{{ message }}</div>
<form action="" method="post" enctype="multipart/form-data">
{% csrf_token %}
<!-- <input type="file" name="excel_file"> -->
{{ form }}
<input type="submit" name="input_button" value="UPLOAD" class="btn btn-primary">
</form>
but I get this error:
Traceback:
File
"C:\Python27\lib\site-packages\django-1.10.4-py2.7.egg\django\core\handlers\exception.py"
in inner
39. response = get_response(request)
File
"C:\Python27\lib\site-packages\django-1.10.4-py2.7.egg\django\core\handlers\base.py"
in _legacy_get_response
249. response = self._get_response(request)
File
"C:\Python27\lib\site-packages\django-1.10.4-py2.7.egg\django\core\handlers\base.py"
in _get_response
187. response = self.process_exception_by_middleware(e, request)
File
"C:\Python27\lib\site-packages\django-1.10.4-py2.7.egg\django\core\handlers\base.py"
in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Lenovo\OneDrive\siswa\transaksi_kas\views.py" in
import_data
165. models=[(contoh_upload, ['nama', 'kelas'], None, 0)],
File "C:\Python27\lib\site-packages\django_excel__init__.py" in
save_book_to_database
61. pe.save_book_as(**params)
File "C:\Python27\lib\site-packages\pyexcel\core.py" in save_book_as
224. return sources.save_book(book, **dest_keywords)
File "C:\Python27\lib\site-packages\pyexcel\sources__init__.py" in
save_book
46. return _save_any(source, book)
File "C:\Python27\lib\site-packages\pyexcel\sources__init__.py" in
_save_any
50. source.write_data(instance)
File "C:\Python27\lib\site-packages\pyexcel\sources\database.py" in
write_data
248. sheet.name_columns_by_row(0)
File "C:\Python27\lib\site-packages\pyexcel\sheets\sheet.py" in
name_columns_by_row
140. self.__column_names = make_names_unique(self.row_at(row_index))
File "C:\Python27\lib\site-packages\pyexcel\sheets\matrix.py" in
row_at
162. raise IndexError(constants.MESSAGE_INDEX_OUT_OF_RANGE)
Exception Type: IndexError at /transaksi/import_form/ Exception Value:
Index out of range
Related
I am getting the following error: Reverse for 'order_pdf' with arguments '('',)' not found. 1 pattern(s) tried: ['business_plan/(?P<id>[0-9]+)/pdf/$']
I am not sure exactly what is the reason for it.
Here is the model:
class Info(models.Model):
logo = models.ImageField(default='report-cover.jpg', null=True, blank=True)
date_posted = models.DateTimeField(default=timezone.now)
name = models.CharField(null=True, blank=True, max_length=100)
Here is the views.py
def add_business_plan(request):
# info=Info.objects.all()
if request.method == 'POST':
# create a form instance and populate it with data from the request:
form = infoForm(request.POST)
# check whether it's valid:
if form.is_valid():
form.save()
business_name = form.cleaned_data.get('businessName')
messages.success(request, f'PDF created for {business_name}!')
# return redirect('businessplan:businessplan')
# redirect(reverse('businessplan:businessplan', kwargs={'successful_submit': True}))
return render(request, 'businessplan/businessplan.html', {'successful_submit': True})
# if a GET (or any other method) we'll create a blank form
else:
form = infoForm()
print(form.errors)
return render(request, 'businessplan/businessplan.html', {'form': form, 'successful_submit': False,
# "Info": info
})
def order_pdf(request, info_id):
info = get_object_or_404(Info, id=info_id)
html = render_to_string('businessplan/pdf.html', {'info': info})
response = HttpResponse(content_type='application/pdf')
response['Content-Disposition'] = 'attachment; filename="{}-Business Plan.pdf"'.format(info.businessName)
weasyprint.HTML(string=html, base_url=request.build_absolute_uri()).write_pdf(response,
stylesheets=[weasyprint.CSS(settings.STATICFILES_DIRS[0] + '\css\\report.css')], presentational_hints=True)
return response
def admin_order_pdf(request, info_id):
info = get_object_or_404(Info, id=info_id)
html = render_to_string('businessplan/pdf.html', {'info': info})
response = HttpResponse(content_type='application/pdf')
response['Content-Disposition'] = 'filename="{}-Business Plan.pdf"'.format(info.businessName)
weasyprint.HTML(string=html, base_url=request.build_absolute_uri()).write_pdf(response,
stylesheets=[weasyprint.CSS(settings.STATICFILES_DIRS[0] + '\css\\report.css')], presentational_hints=True)
return response
Here is the urls.py
urlpatterns = [
path('', add_business_plan, name='businessplan'),
path('businessplan/admin/info/<str:info_id>/pdf/', admin_order_pdf, name='admin_order_pdf'),
#path('<str:info_id>/pdf/', admin_order_pdf, name='admin_order_pdf'),
path('<str:info_id>/pdf/', order_pdf, name='order_pdf'),
]
Here is the businessplan.html snippet of the template:
....modal divs
<a href="{% url 'businessplan:order_pdf' Info.id %}">
<!--<a href="{% url 'businessplan:order_pdf' obj.id %}">-->
<!--<a href="{% url 'businessplan:order_pdf' Info.info_id %}">-->
....modal divs
<form class="needs-validation" method="post" novalidate enctype="multipart/form-data">
{% csrf_token %}
<div class="form-outline mb-4 mt-3">
<input required autocomplete="off" type="text" class="form-control" name=" name"
{% if form.is_bound %} value= "{{ form.name.value }}" {% endif %}>
<label class="form-label">Name</label>
</div>
{% for err in form.name.errors %}
<small class="text-danger ml-2">{{ err }}</small>
{% endfor %}
</div>
</form>
{% if successful_submit %}
<script type="text/javascript">
$(document).ready(function(){
$("#exampleModal").modal('show');
});
</script>
{% endif %}
I can access the pdf from the admin but I am trying to access to add this button for easier functionality.
I have tried changing the info_id to id it didn't work.
What is the reason for this error?
Here is the traceback:
Internal Server Error: /business_plan/
Traceback (most recent call last):
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\core\handlers\base.py", line 179, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\User\Desktop\Portfolio\businessplan\views.py", line 30, in add_business_plan
return render(request, 'businessplan/businessplan.html', {'form': form, 'successful_submit': False })
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\shortcuts.py", line 19, in render
content = loader.render_to_string(template_name, context, request, using=using)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\loader.py", line 62, in render_to_string
return template.render(context, request)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\backends\django.py", line 61, in render
return self.template.render(context)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\base.py", line 170, in render
return self._render(context)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\base.py", line 162, in _render
return self.nodelist.render(context)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\base.py", line 938, in render
bit = node.render_annotated(context)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\base.py", line 905, in render_annotated
return self.render(context)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\template\defaulttags.py", line 446, in render
url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\urls\base.py", line 87, in reverse
return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
File "C:\Users\User\Desktop\Portfolio\venv\lib\site-packages\django\urls\resolvers.py", line 685, in _reverse_with_prefix
raise NoReverseMatch(msg)
django.urls.exceptions.NoReverseMatch: Reverse for 'order_pdf' with arguments '('',)' not found. 1 pattern(s) tried: ['business_plan/(?P<info_id>[^/]+)/pdf/$']
[10/Oct/2021 06:58:51] "GET /business_plan/ HTTP/1.1" 500 143694
Looks like <a href="{% url 'businessplan:order_pdf' Info.id %}"> doesn't work because you don't pass it to the template context.
As a result, the call fails because Info.id is an empty string (cf https://docs.djangoproject.com/en/3.2/ref/templates/api/#invalid-template-variables), hence breaking the URL reversing logic.
You should pass your info instance to the template context to make this work, e.g like this:
return render(
request,
'businessplan/businessplan.html',
{
'form': form,
'successful_submit': False,
"Info": info_instance
}
)
ValueError: invalid literal for int() with base 10: 'slug-1-2'
2nd time i am facing this error again. I am trying to allow users to edit their comments in any blog post but it seems that there is a problem with this line:
comment = get_object_or_404(Comment, id=post_id)
This has worked for other functions (eg when i created a function that can delete comments) but not this one. Any idea how I can resolve this? I got a feeling its sth to do with when I add comments in the url I use slug and <post_id> when I edit comments url. But it worked for my delete function and i did use post_id for that function. Thanks
models.py
class Comment(models.Model):
post = models.ForeignKey(BlogPost, related_name='comments', on_delete=models.CASCADE)
name = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='name', on_delete=models.CASCADE)
body = models.TextField()
class BlogPost(models.Model):
title = models.CharField(max_length=50, null=False, blank=False, unique=True)
body = models.TextField(max_length=5000, null=False, blank=False)
slug = models.SlugField(blank=True, unique=True)
author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
views.py
def edit_own_comment(request, post_id):
context = {}
comment = get_object_or_404(Comment, id=post_id)
if request.method == 'POST':
form = UpdateCommentForm(request.POST, instance=comment)
if comment.name == request.user and form.is_valid():
obj = form.save(commit=False)
obj.save()
messages.success(request, 'Your comment has been edited', extra_tags='editedcomment')
return redirect(reverse("HomeFeed:detail", kwargs={'slug': comment.post.slug }))
form = UpdateCommentForm(
initial = {
"body": comment.body,
}
)
context['form'] = form
return render(request, 'HomeFeed/edit_comment.html', context)
class AddCommentView(LoginRequiredMixin, DetailView, FormView):
login_url = 'must_authenticate'
model = BlogPost
form_class = CommentForm
template_name = 'HomeFeed/add_comment.html'
def form_valid(self, form):
comment = form.save(commit=False)
comment.name = self.request.user
comment.post = self.get_object()
comment.save()
return redirect(reverse("HomeFeed:detail", kwargs={'slug': comment.post.slug }))
def delete_any_comment(request, post_id):
if request.method == 'POST':
comment = get_object_or_404(Comment, id=post_id)
if comment.post.author == request.user:
comment.delete()
return redirect(reverse("HomeFeed:detail", kwargs={'slug': comment.post.slug }))
forms.py
class UpdateCommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ['body']
def save(self, commit=True):
comment = self.instance
comment.body = self.cleaned_data['body']
if commit:
comment.save()
return comment
urls.py
path('comments/<slug>', AddCommentView.as_view(), name= "add_comment"),
path('editowncomments/<post_id>', edit_own_comment, name= "edit_own_comment"),
path('deleteanycomments/<post_id>', delete_any_comment, name= "deleteanycomments"),
html
<form class="create-form" method="POST" enctype="multipart/form-data">{% csrf_token %}
<div class="form-group">
<label for="id_body">Body</label>
<textarea class="form-control" rows="8" type="text" name="body" id="id_body" required>{{form.initial.body}}</textarea>
</div>
<button class="submit-button btn btn-lg btn-primary btn-block" type="submit">Edit Comment</button>
</form>
TraceBack
Internal Server Error: /HomeFeed/editowncomments/slug
Traceback (most recent call last):
File "lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "lib/python3.8/site-packages/django/core/handlers/base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "lib/python3.8/site-packages/django/core/handlers/base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/lib/python3.8/site-packages/django/contrib/auth/decorators.py", line 21, in _wrapped_view
return view_func(request, *args, **kwargs)
File "HomeFeed/views.py", line 995, in edit_own_comment
comment = get_object_or_404(Comment, id=post_id)
File "lib/python3.8/site-packages/django/shortcuts.py", line 93, in get_object_or_404
return queryset.get(*args, **kwargs)
File "/lib/python3.8/site-packages/django/db/models/query.py", line 399, in get
clone = self.filter(*args, **kwargs)
File "/lib/python3.8/site-packages/django/db/models/query.py", line 892, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File "lib/python3.8/site-packages/django/db/models/query.py", line 910, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File "/lib/python3.8/site-packages/django/db/models/sql/query.py", line 1290, in add_q
clause, _ = self._add_q(q_object, self.used_aliases)
File "/lib/python3.8/site-packages/django/db/models/sql/query.py", line 1315, in _add_q
child_clause, needed_inner = self.build_filter(
File "/lib/python3.8/site-packages/django/db/models/sql/query.py", line 1251, in build_filter
condition = self.build_lookup(lookups, col, value)
File "/lib/python3.8/site-packages/django/db/models/sql/query.py", line 1116, in build_lookup
lookup = lookup_class(lhs, rhs)
File "/lib/python3.8/site-packages/django/db/models/lookups.py", line 20, in __init__
self.rhs = self.get_prep_lookup()
File "lib/python3.8/site-packages/django/db/models/lookups.py", line 70, in get_prep_lookup
return self.lhs.output_field.get_prep_value(self.rhs)
File "/lib/python3.8/site-packages/django/db/models/fields/__init__.py", line 972, in get_prep_value
return int(value)
ValueError: invalid literal for int() with base 10: 'slug'
SLDEM's suggestion:
#login_required(login_url=reverse_lazy("must_authenticate"))
def edit_own_comment(request, post_id):
context = {}
comment = get_object_or_404(Comment, id='slug')
if comment.name != request.user:
return HttpResponse('You did not write the comment.')
if request.method == 'POST':
form = UpdateCommentForm(request.POST or None, instance=comment)
if comment.name == request.user and form.is_valid():
obj = form.save(commit=False)
#this prints a success message after it is safe
obj.save()
return redirect(reverse("HomeFeed:detail", kwargs={'slug': comment.post.slug }))
form = UpdateCommentForm(
initial = {
"body": comment.body,
}
)
context['form'] = form
return render(request, 'HomeFeed/edit_comment.html', context)
path('editowncomments/<int:post_id>', edit_own_comment, name= "edit_own_comment"),
html
{% if not blog_post.comments.all %}
<p>No comments yet... Add a comment</p>
{% else %}
Add a comment
<br>
{% for comment in blog_post.comments.all %}
<strong>
{{ comment.name}}
{{ comment.date_added }}
</strong>
{{ comment.body }}
{% if comment.name == request.user and blog_post.author != request.user %}
<form action = "{% url 'HomeFeed:deletecomments' comment.id %}" method = "POST"> {% csrf_token %}
<button class="btn btn-sm btn-danger">Delete</button>
</form>
{% endif %}
{% if blog_post.author == request.user %}
<form action = "{% url 'HomeFeed:deleteanycomments' comment.id %}" method = "POST"> {% csrf_token %}
<button class="btn btn-sm btn-danger">Delete</button>
</form>
{% endif %}
{% if comment.name == request.user %}
<a class="btn btn-sm btn-warning col-lg-4" href="{% url 'HomeFeed:edit_own_comment' comment_id %}">Edit comment</a>
{% endif %}
{% endfor %}
{% endif %}
detail views.py
class DetailBlogPostView(BlogPostMixin,DetailView):
template_name = 'HomeFeed/detail_blog.html'
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
blog_post=self.get_object()
blog_post.save()
context['blog_post'] = blog_post
account = Account.objects.all()
context['account'] = account
#aka if blog post does belong to me
if blog_post.author != self.request.user:
if self.request.user.is_authenticated and \
blog_post.interest_set.filter(user__id=self.request.user.id).exists():
submittedinterest = True
context["interest_pk"]=blog_post.interest_set.first().pk
#if blog post belongs to me
else:
submittedinterest = False
context['submittedinterest'] = submittedinterest
if blog_post.interest_set.exists():
context["interest_pk"]=blog_post.interest_set.first().pk
return context
Well looks like the issue here is with your url, make it like this:
path('edit-own-comments/<int:post_id>', edit_own_comment, name="edit_own_comment"),
(Add the specification that the passed variable is actually an integer) And then use the value of your Comment instance id in your view.
Ok so based on your edits:
Where you have your html to edit the comment:
{% if comment.name == request.user %}
<a class="btn btn-sm btn-warning col-lg-4" href="{% url 'HomeFeed:edit_own_comment' comment.id %}">Edit comment</a> <!-- here change comment_id to comment.id to pass the correct value to the url -->
{% endif %}
In your view where you are getting the comment:
comment = get_object_or_404(Comment, id=post_id) # also rename post_id to something like comment_id here and in the url to make it more readable
And it should work.
''i want to add functionality to my Publish button in HTML. i have made a method under my Post(model) and made a view for that button with a url. i dont know why my button fuctn is not working.
''
My Post Model
class Post(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
description = models.TextField()
created_on = models.DateTimeField(default=timezone.now)
published = models.BooleanField(default=False)
def publish(self):
self.published=True
self.save()
def __str__(self):
return self.title
My Views.py
#login_required
def publish_button(request,pk):
post = get_object_or_404(Post,pk)
post.publish()
return redirect('blog_detail',pk=post.pk)
my urls.py
urlpatterns = [
path('comment/<int:pk>/', comment_post, name='comment_form'),
path('publish/',PublicList.as_view(),name='publish'),
path('publish/<int:pk>/',publish_button,name='p_button'),
path('', index, name='indexpage'),
]
My html
{% extends 'base.html' %}
{% block content %}
<div class="container">
<h1>Blog Details:</h1>
<hr>
<div class="jumbotron">
<h3 align = 'center'>{{ detail.title }}</h3>
<hr>
<div class="mb-5">
<h4>{{ detail.description }}</h4>
</div>
<p>Posted By: {{ detail.user }}<span class="ml-5">{{ detail.created_on }} </span><br>
</div>
{{ detail.pk }}
Publish
<p></p>
<h6>Wanna add comment? <span class="ml-3">
<a href="{% url 'comment_form' pk=detail.pk %}">
<input class="btn btn-dark" type="button" name="" value="Comment">
</a></span>
</h6>
<hr>
<h4>Comments:-</h4>
<hr>
{% for comment in detail.comments.all %}
<h5>{{comment.text}}</h5>
<p>by: #{{comment.author}}<span class='ml-5'>{{comment.commented_on}} </span></p>
<hr>
{% endfor %}
</div>
{% endblock %}
TraceBack:
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv \lib\site-packages\django\core\handlers\exception.py" in inner
34. response = get_response(request)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\core\handlers\base.py" in _get_response
126. response = self.process_exception_by_middleware(e, request)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\core\handlers\base.py" in _get_response
124. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view
21. return view_func(request, *args, **kwargs)
File "C:\Users\AngryBuLLz\Desktop\Django\prac_18\firstapp\views.py" in publish_button
71. post = get_object_or_404(Post,pk)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\shortcuts.py" in get_object_or_404
93. return queryset.get(*args, **kwargs)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in get
390. clone = self.filter(*args, **kwargs)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in filter
844. return self._filter_or_exclude(False, *args, **kwargs)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in _filter_or_exclude
862. clone.query.add_q(Q(*args, **kwargs))
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in add_q
1263. clause, _ = self._add_q(q_object, self.used_aliases)
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in _add_q
1287. split_subq=split_subq,
File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in build_filter
1161. arg, value = filter_expr
Exception Type: TypeError at /publish/5/
Exception Value: cannot unpack non-iterable int object
get_object_or_404 takes a filter expression, exactly as if you were calling Products.objects.get()`. So it should be:
post = get_object_or_404(Post, pk=pk)
ManagementForm data missing error while formset validation
I get this error when I try to save a parent form with intermediate m2m table child formset. I don't know how to solve because the lack of information about this error in Traceback. Please help!
models.py
class Material(models.Model):
name = models.CharField(max_length=200)
familiy = models.ForeignKey(Material_family, on_delete=models.CASCADE, null=True)
…
class Purchase(models.Model):
number = models.IntegerField()
date = models.DateField()
…
class Purchase_detail(models.Model):
material = models.ForeignKey(Material, on_delete=models.CASCADE)
purchase = models.ForeignKey(Purchase, on_delete=models.CASCADE)
quantity = models.IntegerField()
unit_value = models.IntegerField(default=0)
forms.py
class PurchaseModelForm(forms.ModelForm):
class Meta:
model = Purchase
fields = (‘number’,’date’ , ’…’)
def __init__(self, *args, **kwargs):
super(PurchaseModelForm, self).__init__(*args, **kwargs)
self.helper = FormHelper()
self.helper.form_tag = False
self.helper.form_id = 'id-purchase-form'
self.helper.form_method = 'post'
class Purchase_detailModelForm(forms.ModelForm):
class Meta:
model = Purchase_detail
fields = ('material','quantity','unit_value')
def __init__(self, *args, **kwargs):
super(Purchase_detailModelForm, self).__init__(*args, **kwargs)
self.helper = FormHelper()
self.helper.form_tag = False
self.helper.form_id = 'id-purchase-form'
self.helper.form_method = 'post'
self.helper.form_class = 'form-inline'
self.helper.field_template = 'bootstrap3/layout/inline_field.html'
DetailFormSet = forms.inlineformset_factory(Purchase, Purchase_detail, form=Purchase_detailModelForm, extra=1)
views.py
def purchase_new(request, purchase_id=None, *args, **kwargs):
template = 'erp/purchase_form.html'
if purchase_id:
inst = Purchase.objects.get(pk=purchase_id)
else:
inst = Purchase()
if request.method == 'POST':
form = PurchaseModelForm(request.POST or None, request.FILES, prefix='purchase', instance=inst)
formset = DetailFormSet(request.POST or None, request.FILES, prefix='detail')
form_valid = form.is_valid()
if form_valid:
purchase = form.save()
formset.save(commit=False)
for f in formset:
f.compra = purchase
f.save()
return redirect('...')
else:
form = PurchaseModelForm(prefix='purchase',instance=inst)
formset = DetailFormSet(prefix='purchase')
context = { 'form': form, 'formset': formset }
return render(request, template, context )
This is the template
<form method='POST' action="">
{% csrf_token %}
<div>
<h5 style="font-weight: bold;">Datos de la Compra</h5>
{% crispy form form.helper %}<hr/>
<h5 style="font-weight: bold;">Detalle de la Compra <a class="btn btn-rounded btn-sm btn-icon btn-default add-new-form"><i class="fa fa-plus text-success"></i></a></h5>
</div>
{{ formset.management_form|crispy }}
{% for x in formset %}
<div class="form-inline">
{{ x|crispy }}
<hr>
</div>
{% endfor %}
<div class="form-inline" id="empty-row">
{{ formset.empty_form|crispy }}
<hr>
</div>
<button class="btn btn-block btn-primary" >Guardar</button>
</form>
And the traceback is :
Traceback:
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File "/Users/jlattus/Dev/italuzbi/src/erp/views.py" in purchase_new
415. formset.save(commit=False)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/models.py" in save
666. return self.save_existing_objects(commit) + self.save_new_objects(commit)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/models.py" in save_existing_objects
768. if not self.initial_forms:
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/formsets.py" in initial_forms
189. return self.forms[:self.initial_form_count()]
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/utils/functional.py" in get
35. res = instance.dict[self.name] = self.func(instance)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/formsets.py" in forms
144. for i in range(self.total_form_count())]
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/formsets.py" in total_form_count
116. return min(self.management_form.cleaned_data[TOTAL_FORM_COUNT], self.absolute_max)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/utils/functional.py" in get
35. res = instance.dict[self.name] = self.func(instance)
File "/Users/jlattus/Dev/italuzbi/lib/python3.5/site-packages/django/forms/formsets.py" in management_form
98. code='missing_management_form',
Exception Type: ValidationError at /compra/new/
Exception Value: ['Los datos de ManagementForm faltan o han sido manipulados
I want to learn python and web-dev and I am trying to make a functional web application. Right now I have problem with django-autocomplete-light.
I am trying to use autocomplete for my django application. I followed the tutorial, but when I try to search It says that The results could not be loaded.
But results are shown in dropdown list.
I have a form where user can add new invoce, I am trying to use django-autocomplete-light for autocompleting all suppliers so user, doesn't need to search for it.
My models:
class Supplier(models.Model):
supp_name = models.CharField(max_length=255)
mat_number = models.CharField(max_length=255)
organ = models.CharField(max_length=255, null=True, blank=True)
street = models.CharField(max_length=255, null=True, blank=True)
email = models.CharField(max_length=255, null=True, blank=True)
def __str__(self):
return self.supp_name.encode("utf-8")
def get_absolute_url(self):
return reverse('supplier-detail', args=[str(self.id)])
def __unicode__(self):
return '%s' % (self.supp_name,)
class Invoice(models.Model):
organization = models.ForeignKey(Group, help_text="organization")
input_peo = models.CharField(max_length=150)
date = models.DateTimeField(auto_now_add=True)
supplier = models.ForeignKey(Supplier, on_delete=models.SET_NULL, null=True, related_name='name')
invoice_number = models.CharField(max_length=100, null=True, blank=True, help_text='Številka preračuna')
price = models.FloatField(null=True, blank=True, help_text='Cena brez DDV')
sum_me = models.IntegerField(null=True, blank=True, help_text='Kolicina')
def __str__(self):
return self.organization.name.encode("utf-8")
def get_absolute_url(self):
return reverse('invoice-detail', args=[str(self.id)])
My views:
class AddInvoice(LoginRequiredMixin, generic.View):
login_url = '/accounts/login/'
redirect_field_name = 'redirect_to'
form_class = InvoiceCreate
template_name = 'invoce/invoce_form.html'
def get(self, request):
form = self.form_class(None)
return render(request, self.template_name, {'form': form})
def post(self, request):
form = self.form_class(request.POST)
if form.is_valid():
invoice = form.save(commit=False)
invoice.organization = request.user.groups.first()
invoice.input_peo = self.request.user.get_full_name()
invoice.supplier = form.cleaned_data['supplier']
invoice.invoice_number = form.cleaned_data['invoice_number']
invoice.price = form.cleaned_data['price']
invoice.sum_me = form.cleaned_data['sum_me']
invoice.save()
return HttpResponseRedirect('/')
return render(request, self.template_name, {'form': form})
'''
*
AUTOCOMPLETE
*
'''
class SupplierAutoComplete(autocomplete.Select2QuerySetView):
def get_queryset(self):
qs = Supplier.objects.all()
if self.q:
qs = qs.filter(name__istartswith=self.q)
return qs
urls:
urlpatterns += [
url(
r'^autocomplete/$',
views.SupplierAutoComplete.as_view(model=Supplier),
name='supplier-autocomplete',
),
]
If I search just for autocomplete (/autocomplete/) in browser this is what i get:
my forms.py:
class InvoiceCreate(forms.ModelForm):
class Meta:
model = Invoice
fields = [
'supplier',
'invoice_number',
'price',
'sum_me',
]
widgets = {
'supplier': autocomplete.ModelSelect2(url='supplier-autocomplete')
}
and finally my template for form:
{% extends "base_generic.html" %}
{% block content %}
<div class="jumbotron">
<div class="row" style="margin-top:60px">
<form action="" method="post">
{% csrf_token %}
<!-- Left Inputs -->
<div class="col-xs-6 wow animated slideInLeft" data-wow-delay=".5s">
<!-- Supplier -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.supplier.errors }}
<label>Supplier:</label>
<div class="container">
{{ form.supplier }}
</div>
</div>
<!-- invoice_number -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.invoice_number.errors }}
<input type="text" name="invoice_number" id="id_invoice_number" placeholder="Invoice Number" class="form"/>
</div>
<!-- price -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.price.errors }}
<input type="text" name="price" id="id_price" placeholder="Price" class="form"/>
</div>
<!-- sum_me -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.sum_me.errors }}
<input type="number" name="sum_me" id="id_sum_me" placeholder="Sum" class="form"/>
</div>
</div><!-- End Left Inputs -->
<!-- Bottom Submit -->
<div class="relative fullwidth col-xs-12">
<!-- Send Button -->
<button type="submit" class="form-btn semibold">Add</button>
</div><!-- End Bottom Submit -->
<!-- Clear -->
<div class="clear"></div>
</form>
</div>
</div>
{{ form.media }}
{% endblock %}
This is traceback I get when I try to search:
[19/Aug/2017 14:29:54] "GET /invoice/autocomplete/?q=frnej HTTP/1.1" 500 16154
[2017-08-19 14:29:54,630] - Broken pipe from ('127.0.0.1', 55490)
Internal Server Error: /invoice/autocomplete/
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/dal/views.py", line 48, in dispatch
return super(ViewMixin, self).dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/base.py", line 88, in dispatch
return handler(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/list.py", line 160, in get
self.object_list = self.get_queryset()
File "/Users/miha/Desktop/#application/django/einvoice/invoice/views.py", line 255, in get_queryset
qs = qs.filter(name__istartswith=self.q)
File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 784, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1261, in add_q
clause, _ = self._add_q(q_object, self.used_aliases)
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1287, in _add_q
allow_joins=allow_joins, split_subq=split_subq,
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1212, in build_filter
raise FieldError('Related Field got invalid lookup: {}'.format(lookups[0]))
FieldError: Related Field got invalid lookup: istartswith