I have Django site, which I am using to manage various projects and the
information about each project.
I have models for Projects and Budgets in the database. Each Project can
have many Budgets, but a Budget can only be associated with one Project.
I am trying to add the functionality to upload an image file to a Budget
using a form on one of the webpages, but am getting an error whenever I try
to upload the file...
The form in the template where I am trying to upload the file is:
<form method="POST" enctype="multipart/form-data"
data-vat-status="{{project.vat_status}}" data-view-url="{% url
'projects:concept_save_ajax_2' project.id %}" class="autosave_form formset
full-width" action="{% url 'projects:upload_budget_pdfs' project.id %}">
{% csrf_token %}
<div id="presentations" class="app-wrap center-apps middle">
{% with get|apps:'Budgets' as costing_app %}
{% for presentation in presentations %}
<div id="presentation-{{presentation.id}}" class="app sm {% if
presentation.current_marker %}{{costing_app.color}}{% else
%}{{app.color}}{% endif %}">
<a href="" class="filler"></a>
<a class="show-presentation bottom-right"
name="presentation-{{presentation.id}}"><img class="icon" src="{% static
'img/edit-white.png' %}"></a>
<ul class="flush">
<li class=""><h2 class="p-t-lg">Presentation {{forloop.counter}}</h2></li>
<li>{{presentation.presentation_date|date:"d M y"|xor}}</li>
<li>{{presentation.details|xor|truncatechars:50}}</li>
{% if presentation.current_marker %}<li>({% if
project.deposit_received%}Deposit{% else %}Current{% endif %}
budget)</li>{% endif %}
</ul>
</div>
{% if forloop.last %}
{% endif %}
{% endfor %}
{# Add a new presentation #}
<div id="presentation-new" class="app sm {{costing_app.color}} outline">
<a id="new_presentation" data-view-url="{% url
'projects:save_new_presentation' project.id %}" class="filler
show-presentation" name="presentation-new"></a>
<a name="presentation-new"></a>
<span class="big-head">+</span>
<h2 class="no-m">Add presentation</h2></li>
</div>
{% endwith %}
</div>
<div class="middle">
{{presentation_formset.management_form}}
{{drawing_formset.management_form}}
<div class="col-9 centered-block p-t-lg">
<table class="left fixed text-sm slim">
{# New presentation without budget #}
<tbody>
</tbody>
{# Edit presentation details #}
{% for presentation_form in presentation_formset %}
<tbody id="pres{{forloop.counter}}" class="presentation-form"
name="presentation-{{presentation_form.instance.id|xor:'new'}}"
style="display: none;">
{% if not forloop.last and presentation_form.instance.budget_items.count %}
<tr class="split-rows">
<td colspan="3">Exc VAT {% if not presentation_form.instance.current_marker
%}{{presentation_form.instance.grand_total_exc_vat|money:'£'}}{% else
%}{{project.budget_overview.updated_exc_vat|money:'£'}}{% endif %}</td>
<td colspan="3">Inc VAT {% if not presentation_form.instance.current_marker
%}{{presentation_form.instance.grand_total_inc_vat|money:'£'}}{% else
%}{{project.budget_overview.updated_inc_vat|money:'£'}}{% endif %}</td>
</tr>
{% endif %}
<tr>
{% for hidden in presentation_form.hidden_fields %}
<td class="hidden">{{ hidden }}</td>
{% endfor %}
</tr>
{% for field in presentation_form.visible_fields %}
<tr class="split-rows">
{% if not field.name == 'pdf_package_dep' %}
<td colspan="6"><label>{{field.label}}</label></td>
{% endif %}
</tr>
<tr class="split-rows">
<td colspan="6">
{% if not field.name == 'pdf_package_dep' %}
{% if field.name == 'presentation_date' %}
{% with presentation_form.instance.meeting as meeting %}
{% include "projects/includes/meeting_bit.html" with
employee=request.user.employee meeting=meeting
UID=presentation_form.instance.id %}
{% endwith %}
{# <a class="ical_trigger button" data-view-url="{% url 'events:add_to_cal'
%}" {% if not field.value %}style="display:none"{% endif %}>Add to
calendar</a> #}
{% else %}
{{field}}
{% endif %}
{% endif %}
</td>
</tr>
{% endfor %}
{% if presentation_form.instance.id %}
{# PDF uploads #}
{% with drawing_form=drawing_formset|getval:forloop.counter0 %}
{# budget_pdf_form=budget_pdf_formset|getval:forloop.counter0 #}
<tr>
{% if not forloop.last %}
<td colspan="3"><label>Budget PDF package</label></td>
{% endif %}
<td colspan="3"><label>Drawings</label></td>
</tr>
<tr>
{% if not forloop.last %}
<td colspan="3" class="center">
{% if presentation_form.instance.pdf_package_dep %}
<a class="button file-download pdf" href="{% url 'costing:pdf_open'
presentation_form.instance.id %}?pdf=package_dep" target="_blank"></a><a
class="pdf-clear" data-view-url="{% url 'costing:pdf_clear'
presentation_form.instance.id %}?pdf=package_dep"><img class="icon m-l-sm
m-b-md" src="{% static "img/bin.png" %}"></a>
{% else %}
{{presentation_form.pdf_package_dep}}
{% endif %}
</td>
{% endif %}
{% for d_field in drawing_form.visible_fields %}
{% if drawing_form.instance.pdf %}
<td colspan="3" class="center">
<a class="button file-download pdf" href="{% url 'costing:pdf_open'
presentation_form.instance.id %}?pdf=drawings" target="_blank"></a><a
class="pdf-clear" data-view-url="{% url 'costing:pdf_clear'
presentation_form.instance.id %}?pdf=drawings"><img class="icon m-l-sm
m-b-md" src="{% static "img/bin.png" %}"></a>
</td>
{% else %}
<td colspan="3">{{d_field}}</td>
{% for d_hidden in drawing_form.hidden_fields %}
<td class="hidden">{{d_hidden}}</td>
{% endfor %}
{% endif %}
{% endfor %}
<tr>
<td colspan="1" class="p-t-md"></td>
<td colspan="4" class="p-t-md"><input type="submit" value="upload"></td>
<td colspan="1" class="p-t-md"></td>
</tr>
</tr>
{% endwith %}
{% endif %}
<tr>
<td colspan="3">
<a class="button email_trigger m-t-md" style="width:auto;"
data-view-url="{% url 'comms:open_email_template' project.id
%}?template=6&budget={{presentation_form.instance.id}}">Email client
meeting report</a>
</td>
</tr>
<tr>
<td class="p-t-md">
<a {% if forloop.last %}id="refresh_presentations"{% endif
%}class="update_presentation button fill">Done</a>
</td>
<td colspan="2">
{% if presentation_form.instance.id and not
presentation_form.instance.budget_items.count %}
<a class="button fill" href="{% url 'costing:delete_presentation'
presentation_form.instance.id %}">Delete</a>
{% endif %}
</td>
</tr>
</tbody>
{% endfor %}
</table>
</div>
</div>
</form>
and the view that is called when clicking the 'Submit' button on the form
is:
def upload_budget_pdfs(request, project_id):
project = Project.objects.get(id=project_id)
print("Value of project in 'upload_budget_pdfs()': ", project)
if request.method == 'POST':
presentations =
project.budget_versions.select_related('meeting').prefetch_related('budget_items',
'cci_items',
'presenters').filter(version_number__isnull=False).annotate(vn=F('version_number')
* -1).order_by('presentation_date', 'created', '-vn')
print("Value of presentations in 'upload_budget_pdfs()': ", presentations)
drawing_formset = DrawingUploadFormset(request.POST, request.FILES,
prefix="drawings",
queryset=Drawing.objects.filter(budget__in=presentations).order_by('budget__presentation_date',
'budget__created'))
print("Value of drawing_formset in 'upload_budget_pdfs()': ",
drawing_formset)
if drawing_formset:
print 'Saving drawing_formset'
print "Before", [b.id for b in project.budget_versions.all()]
for drawing_form in drawing_formset: # This line is what's causing the
MultiValueDictKeyError
if drawing_form.instance.budget:
print 'Instance', drawing_form.instance.budget
drawing = drawing_form.save(commit=False)
drawing.budget = drawing_form.instance.budget
drawing.save()
print drawing, [b.id for b in project.budget_versions.all()]
else:
print("Drawing formset not valid. ", drawing_formset.errors)
budget_formset = BudgetPresentationFormset(request.POST, request.FILES,
instance=project, prefix="presentations")
if budget_formset.is_valid() and budget_formset.has_changed():
updated_budget_presentations = budget_formset.save()
elif budget_formset.has_changed(): print 'Budget formset not
valid.',budget_formset.errors
return HttpResponseRedirect(reverse('projects:concept', args=[project_id]))
Currently, when I view this page in the browser, and the form is displayed,
I can upload an image file to the form by clicking on the 'Upload' button,
selecting the file, and pressing 'Ok'. I can see that the file has been
'attached' to the form correctly, as its name is displayed next to the
'Upload' button on the form.
However, when I then click the 'Submit' button, to submit the form, my
browser displays an error page that says:
MultiValueDictKeyError at /projects/6215/upload-budget-pdf/
>
> "u'drawings-4-id'"
>
> Request Method: POST
> Request URL: http://localhost:8000/projects/6215/upload-budget-pdf/
> Django Version: 1.9.1
> Exception Type: MultiValueDictKeyError
> Exception Value:
>
> "u'drawings-4-id'"
>
> Exception Location:
> /Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/utils/datastructures.py
>
> in __getitem__, line 85
> Python Executable: /Users/.../.virtualenvs/moon/bin/python
> Python Version: 2.7.6
> Python Path:
>
> ['/Users/.../Documents/Dev/moonhub/moon',
> '/Users/beckysmith/Documents/Dev/moonhub/moon/moon',
> '/usr/local/bin',
> '/Users/.../Documents/Dev/moonhub/moon',
> '/Users/.../.virtualenvs/moon/lib/python27.zip',
> '/Users/.../.virtualenvs/moon/lib/python2.7',
> '/Users/.../.virtualenvs/moon/lib/python2.7/plat-darwin',
> '/Users/.../.virtualenvs/moon/lib/python2.7/plat-mac',
> '/Users/.../.virtualenvs/moon/lib/python2.7/plat-mac/lib-scriptpackages',
> '/Users/.../.virtualenvs/moon/Extras/lib/python',
> '/Users/.../.virtualenvs/moon/lib/python2.7/lib-tk',
> '/Users/.../.virtualenvs/moon/lib/python2.7/lib-old',
> '/Users/.../.virtualenvs/moon/lib/python2.7/lib-dynload',
> '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
>
> '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
>
> '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
>
> '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
>
> '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
> '/Users/elgan/.virtualenvs/moon/lib/python2.7/site-packages']
>
> Server time: Fri, 27 Jan 2017 08:48:54 +0000
and the console displays the following output:
("Value of project in 'upload_budget_pdfs()': ", <Project: Test 1>)
("Value of presentations in 'upload_budget_pdfs()': ", [<Budget: Test 1:
Version -1>, <Budget: Test 1: Version -1>, <Budget: Test 1: Version 0>,
<Budget: Test 1: Version 0>, <Budget: Test 1: Version 0>, <Budget: Test 1:
Version 3>, <Budget: Test 1: Version 0>, <Budget: Test 1: Version 1234>,
<Budget: Test 1: Version 1234>, <Budget: Test 1: Version 1234>, <Budget:
Test 1: Version 1234>, <Budget: Test 1: Version 1234>, <Budget: Test 1:
Version 1234>, <Budget: Test 1: Version 1234>, <Budget: Test 1: Version
1234>, <Budget: Test 1: Version 1234>, <Budget: Test 1: Version 1234>,
<Budget: Test 1: Version 1234>, <Budget: Test 1: Version 1234>, <Budget:
Test 1: Version 1234>, '...(remaining elements truncated)...'])
("Value of drawing_formset in 'upload_budget_pdfs()': ",
<django.forms.formsets.DrawingFormFormSet object at 0x107036110>)
Saving drawing_formset
Before [3690L, 3691L, 3693L, 3695L, 3696L, 3697L, 3707L, 3709L, 3726L,
3727L, 3745L, 3747L, 3748L, 3749L, 3750L, 3757L, 3763L, 3766L, 3769L,
3770L, 3771L, 3772L, 3801L, 3802L, 3866L, 3867L, 3868L, 3869L, 3870L,
3871L, 3872L, 3873L, 3874L, 3875L, 3876L, 3877L, 3878L, 3879L, 3880L,
3881L, 3882L, 3883L, 3884L, 3885L, 3886L, 3887L, 3888L, 3889L, 3890L,
3891L, 3892L, 3893L, 3894L, 3895L, 3896L, 3897L, 3898L, 3899L, 3900L]
Internal Server Error: /projects/6215/upload-budget-pdf/
Traceback (most recent call last):
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/core/handlers/base.py",
line 140, in get_response
response = middleware_method(request, callback, callback_args,
callback_kwargs)
File "/Users/.../Documents/Dev/moonhub/moon/moon/middleware.py", line 72,
in process_view
return
permission_required(required_permission)(view_func)(request,*view_args,**view_kwargs)
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/contrib/auth/decorators.py",
line 23, in _wrapped_view
return view_func(request, *args, **kwargs)
File "/Users/.../Documents/Dev/moonhub/moon/projects/views.py", line
1034, in upload_budget_pdfs
for drawing_form in drawing_formset: #ERF(24/01/2017 @ 1610) This line
is what's causing the MultiValueDictKeyError
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/forms/formsets.py",
line 74, in __iter__
return iter(self.forms)
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/utils/functional.py",
line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/forms/formsets.py",
line 144, in forms
for i in range(self.total_form_count())]
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/forms/models.py",
line 587, in _construct_form
pk = self.data[pk_key]
File
"/Users/.../.virtualenvs/moon/lib/python2.7/site-packages/django/utils/datastructures.py",
line 85, in __getitem__
raise MultiValueDictKeyError(repr(key))
MultiValueDictKeyError: "u'drawings-4-id'"
*[27/Jan/2017 10:16:48] "POST /projects/6215/upload-budget-pdf/ HTTP/1.1"
500 205382*
So it seems that the 'Internal Server Error' or 'MultiValueDictKeyError' is
caused by the line:
for drawing_form in drawing_formset:
but I don't understand why this is causing me the error...? Can anyone
explain what I'm doing wrong here? Is there something wrong with the way I
have declared `drawing_formset`? How can I resolve this error?
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