Re: 'QuerySet' object has no attribute '_meta' ... but I'm not using a QuerySet!

[Tomas Neme]

The ArtworkForm AND the full view code would be helpful, yes

also, maybe you'll want to install django-extensions, werkzeug, and
run your devserver with runserver_plus, that'll give you full
debugging capabilities on your browser, and will be able to see what's
each object (that instace object, specifically)

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Re: 'QuerySet' object has no attribute '_meta' ... but I'm not using a QuerySet!

[Babatunde Akinyanmi]

Like the code for ArtworkForm

On 7/26/12, Babatunde Akinyanmi  wrote:
> Looks good to me. Are you sure have shown us all the relevant parts of
> your code?
>
> On 7/25/12, Deathweasel  wrote:
>> Hello, guys.
>> This is Django 1.4.
>>
>> I have this code from my view:
>>
>> my_art = ArtworkModel.objects.get(id=pk)
>> comments = CommentModel.objects.filter(artwork=pk)
>> artForm = ArtworkForm(instance=my_art)
>> ...
>>
>> These models:
>>
>> class ArtworkModel(models.Model):
>> """
>> This class contains the information necessary to describe a piece
>> of
>> artwork uploaded to my website. Technically, the artist field is
>> unnecessary, but I'm throwing it in because I'd like to be able
>> to upload collaborations.
>> """
>> MEDIUMS = (('ink', 'ink'),
>>('graphite', 'graphite'),
>>('watercolor', 'watercolor'),
>>('oil', 'oil'),
>>('acrylic', 'acrylic'),
>>('digital', 'digital'),
>>('sculpture', 'sculpture'),
>>('other','other'))
>>
>> title = models.CharField(max_length=200)
>> medium = models.CharField(max_length=200, choices=MEDIUMS,
>> default='graphite')
>> upload_date = models.DateTimeField(auto_now_add=True)
>> artist = models.CharField(max_length=200)
>> image = models.ImageField(upload_to=getFilePath)
>> desc = models.TextField(verbose_name="Description", max_length=500)
>>
>> class Meta:
>> ordering = ['title']
>>
>> def __unicode__(self):
>> return '-'.join((self.title, self.artist, self.medium))
>>
>> class CommentModel(models.Model):
>> """
>> This class contains the information necessary to describe a
>> comment
>> that someone's left about a piece of artwork.
>> """
>> commenteer = models.CharField(max_length=200, blank=False)
>> comment_body = models.TextField(blank=False)
>> artwork = models.ForeignKey(ArtworkModel)
>> date = models.DateTimeField(auto_now_add=True)
>>
>> class Meta:
>> ordering = ['date']
>>
>>
>> And this traceback:
>> Traceback:
>> File
>> "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py"
>> in get_response
>>   111. response = callback(request,
>> *callback_args,
>>
>> **callback_kwargs)
>> File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py"
>> in
>>
>> _wrapped_view
>>   91. response = view_func(request, *args, **kwargs)
>> File "/home/deathweasel/shiny-website/deathweasel/artwork/views.py" in
>> modify_artwork
>>   94. artForm = ArtworkForm(instance=my_art)
>> File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in
>> __init__
>>   238. object_data = model_to_dict(instance, opts.fields,
>> opts.exclude)
>> File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in
>> model_to_dict
>>   111. opts = instance._meta
>>
>> Exception Type: AttributeError at /artwork/8/modify/
>> Exception Value: 'QuerySet' object has no attribute '_meta'
>>
>> The internet says I should be using a regular Model instance rather than
>> a
>> QuerySet to populate my form. The thing is that I think I AM using a
>> regular model. I'm not even using
>> those CommentModels yet. I don't understand why this is failing? Please
>> help?
>>
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>>
>
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Re: 'QuerySet' object has no attribute '_meta' ... but I'm not using a QuerySet!

[Babatunde Akinyanmi]

Looks good to me. Are you sure have shown us all the relevant parts of
your code?

On 7/25/12, Deathweasel  wrote:
> Hello, guys.
> This is Django 1.4.
>
> I have this code from my view:
>
> my_art = ArtworkModel.objects.get(id=pk)
> comments = CommentModel.objects.filter(artwork=pk)
> artForm = ArtworkForm(instance=my_art)
> ...
>
> These models:
>
> class ArtworkModel(models.Model):
> """
> This class contains the information necessary to describe a piece
> of
> artwork uploaded to my website. Technically, the artist field is
> unnecessary, but I'm throwing it in because I'd like to be able
> to upload collaborations.
> """
> MEDIUMS = (('ink', 'ink'),
>('graphite', 'graphite'),
>('watercolor', 'watercolor'),
>('oil', 'oil'),
>('acrylic', 'acrylic'),
>('digital', 'digital'),
>('sculpture', 'sculpture'),
>('other','other'))
>
> title = models.CharField(max_length=200)
> medium = models.CharField(max_length=200, choices=MEDIUMS,
> default='graphite')
> upload_date = models.DateTimeField(auto_now_add=True)
> artist = models.CharField(max_length=200)
> image = models.ImageField(upload_to=getFilePath)
> desc = models.TextField(verbose_name="Description", max_length=500)
>
> class Meta:
> ordering = ['title']
>
> def __unicode__(self):
> return '-'.join((self.title, self.artist, self.medium))
>
> class CommentModel(models.Model):
> """
> This class contains the information necessary to describe a comment
> that someone's left about a piece of artwork.
> """
> commenteer = models.CharField(max_length=200, blank=False)
> comment_body = models.TextField(blank=False)
> artwork = models.ForeignKey(ArtworkModel)
> date = models.DateTimeField(auto_now_add=True)
>
> class Meta:
> ordering = ['date']
>
>
> And this traceback:
> Traceback:
> File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py"
> in get_response
>   111. response = callback(request, *callback_args,
>
> **callback_kwargs)
> File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py" in
>
> _wrapped_view
>   91. response = view_func(request, *args, **kwargs)
> File "/home/deathweasel/shiny-website/deathweasel/artwork/views.py" in
> modify_artwork
>   94. artForm = ArtworkForm(instance=my_art)
> File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in
> __init__
>   238. object_data = model_to_dict(instance, opts.fields,
> opts.exclude)
> File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in
> model_to_dict
>   111. opts = instance._meta
>
> Exception Type: AttributeError at /artwork/8/modify/
> Exception Value: 'QuerySet' object has no attribute '_meta'
>
> The internet says I should be using a regular Model instance rather than a
> QuerySet to populate my form. The thing is that I think I AM using a
> regular model. I'm not even using
> those CommentModels yet. I don't understand why this is failing? Please
> help?
>
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> You received this message because you are subscribed to the Google Groups
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> https://groups.google.com/d/msg/django-users/-/_eRwn1qmzr0J.
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>

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'QuerySet' object has no attribute '_meta' ... but I'm not using a QuerySet!

[Deathweasel]

Hello, guys.
This is Django 1.4.

I have this code from my view:

my_art = ArtworkModel.objects.get(id=pk)
comments = CommentModel.objects.filter(artwork=pk)
artForm = ArtworkForm(instance=my_art)
...

These models:

class ArtworkModel(models.Model):
"""
This class contains the information necessary to describe a piece of
artwork uploaded to my website. Technically, the artist field is
unnecessary, but I'm throwing it in because I'd like to be able
to upload collaborations.
"""
MEDIUMS = (('ink', 'ink'),
   ('graphite', 'graphite'),
   ('watercolor', 'watercolor'),
   ('oil', 'oil'),
   ('acrylic', 'acrylic'),
   ('digital', 'digital'),
   ('sculpture', 'sculpture'),
   ('other','other'))

title = models.CharField(max_length=200)
medium = models.CharField(max_length=200, choices=MEDIUMS, 
default='graphite')
upload_date = models.DateTimeField(auto_now_add=True)
artist = models.CharField(max_length=200)
image = models.ImageField(upload_to=getFilePath)
desc = models.TextField(verbose_name="Description", max_length=500)

class Meta:
ordering = ['title']

def __unicode__(self):
return '-'.join((self.title, self.artist, self.medium))

class CommentModel(models.Model):
"""
This class contains the information necessary to describe a comment
that someone's left about a piece of artwork. 
"""
commenteer = models.CharField(max_length=200, blank=False)
comment_body = models.TextField(blank=False)
artwork = models.ForeignKey(ArtworkModel)
date = models.DateTimeField(auto_now_add=True)

class Meta:
ordering = ['date']


And this traceback:
Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" 
in get_response
  111. response = callback(request, *callback_args, 
**callback_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py" in 
_wrapped_view
  91. response = view_func(request, *args, **kwargs)
File "/home/deathweasel/shiny-website/deathweasel/artwork/views.py" in 
modify_artwork
  94. artForm = ArtworkForm(instance=my_art)
File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in 
__init__
  238. object_data = model_to_dict(instance, opts.fields, 
opts.exclude)
File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in 
model_to_dict
  111. opts = instance._meta

Exception Type: AttributeError at /artwork/8/modify/
Exception Value: 'QuerySet' object has no attribute '_meta'

The internet says I should be using a regular Model instance rather than a 
QuerySet to populate my form. The thing is that I think I AM using a 
regular model. I'm not even using
those CommentModels yet. I don't understand why this is failing? Please 
help?

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