MultipleObjectsReturned- get() returned more than one mPurchase — it returned 2












0














I am beginner to django. While trying to save mPurchase form I am getting MultipleObjectReturned error. I am trying to get data from form using POST request. Every time I submit the form I am getting an error.



views.py



def milkPurchase(request):
title='Buy Milk'
milk = mPurchase.objects.all()

if request.method=='POST':
form=mPurchaseForm(request.POST)
if form.is_valid():
m = get_object_or_404(mPurchase)
m.mPurchase_date=timezone.now()
m.save()
return redirect('milk-purchase')

else:
form=mPurchaseForm()


context = {
'title': title,
'form': form,
'milk':milk

}
return render(request,'dairyapp/milk-purchase.html',context)


forms.py



class mPurchaseForm(forms.ModelForm):
"""
This form is for milk purchase
"""

seller=forms.CharField(
label='Seller Name',
max_length=50,
)

mPurchase_product=forms.ChoiceField(
choices=MILK_CHOICES,
label='Milk Type',
initial='',
widget=forms.Select(),
required=True
)

mPurchase_qty=forms.FloatField(
label='Qty'
)

mPurchase_rate=forms.FloatField(
label='Rate'
)

class Meta:
model=mPurchase
fields=('seller','mPurchase_product','mPurchase_qty','mPurchase_rate',)


here is my
models.py



class mPurchase(models.Model):
mPurchase_id=models.AutoField(primary_key=True)
seller=models.CharField(max_length=50)
mPurchase_date=models.DateTimeField(default=timezone.now)
mPurchase_product=models.CharField(max_length=10,choices=MILK_CHOICES)
mPurchase_qty=models.FloatField()
mPurchase_rate=models.FloatField()

def __str__(self):
return self.seller


Can you please help me get through this? I have tried using



mPurchase.objects.filter()


Also, tried to catch exception using ObjectDoesNotExist and MultipleObjectReturned



from django.core.exceptions import ObjectDoesNotExist, 
MultipleObjectsReturned









share|improve this question



























    0














    I am beginner to django. While trying to save mPurchase form I am getting MultipleObjectReturned error. I am trying to get data from form using POST request. Every time I submit the form I am getting an error.



    views.py



    def milkPurchase(request):
    title='Buy Milk'
    milk = mPurchase.objects.all()

    if request.method=='POST':
    form=mPurchaseForm(request.POST)
    if form.is_valid():
    m = get_object_or_404(mPurchase)
    m.mPurchase_date=timezone.now()
    m.save()
    return redirect('milk-purchase')

    else:
    form=mPurchaseForm()


    context = {
    'title': title,
    'form': form,
    'milk':milk

    }
    return render(request,'dairyapp/milk-purchase.html',context)


    forms.py



    class mPurchaseForm(forms.ModelForm):
    """
    This form is for milk purchase
    """

    seller=forms.CharField(
    label='Seller Name',
    max_length=50,
    )

    mPurchase_product=forms.ChoiceField(
    choices=MILK_CHOICES,
    label='Milk Type',
    initial='',
    widget=forms.Select(),
    required=True
    )

    mPurchase_qty=forms.FloatField(
    label='Qty'
    )

    mPurchase_rate=forms.FloatField(
    label='Rate'
    )

    class Meta:
    model=mPurchase
    fields=('seller','mPurchase_product','mPurchase_qty','mPurchase_rate',)


    here is my
    models.py



    class mPurchase(models.Model):
    mPurchase_id=models.AutoField(primary_key=True)
    seller=models.CharField(max_length=50)
    mPurchase_date=models.DateTimeField(default=timezone.now)
    mPurchase_product=models.CharField(max_length=10,choices=MILK_CHOICES)
    mPurchase_qty=models.FloatField()
    mPurchase_rate=models.FloatField()

    def __str__(self):
    return self.seller


    Can you please help me get through this? I have tried using



    mPurchase.objects.filter()


    Also, tried to catch exception using ObjectDoesNotExist and MultipleObjectReturned



    from django.core.exceptions import ObjectDoesNotExist, 
    MultipleObjectsReturned









    share|improve this question

























      0












      0








      0







      I am beginner to django. While trying to save mPurchase form I am getting MultipleObjectReturned error. I am trying to get data from form using POST request. Every time I submit the form I am getting an error.



      views.py



      def milkPurchase(request):
      title='Buy Milk'
      milk = mPurchase.objects.all()

      if request.method=='POST':
      form=mPurchaseForm(request.POST)
      if form.is_valid():
      m = get_object_or_404(mPurchase)
      m.mPurchase_date=timezone.now()
      m.save()
      return redirect('milk-purchase')

      else:
      form=mPurchaseForm()


      context = {
      'title': title,
      'form': form,
      'milk':milk

      }
      return render(request,'dairyapp/milk-purchase.html',context)


      forms.py



      class mPurchaseForm(forms.ModelForm):
      """
      This form is for milk purchase
      """

      seller=forms.CharField(
      label='Seller Name',
      max_length=50,
      )

      mPurchase_product=forms.ChoiceField(
      choices=MILK_CHOICES,
      label='Milk Type',
      initial='',
      widget=forms.Select(),
      required=True
      )

      mPurchase_qty=forms.FloatField(
      label='Qty'
      )

      mPurchase_rate=forms.FloatField(
      label='Rate'
      )

      class Meta:
      model=mPurchase
      fields=('seller','mPurchase_product','mPurchase_qty','mPurchase_rate',)


      here is my
      models.py



      class mPurchase(models.Model):
      mPurchase_id=models.AutoField(primary_key=True)
      seller=models.CharField(max_length=50)
      mPurchase_date=models.DateTimeField(default=timezone.now)
      mPurchase_product=models.CharField(max_length=10,choices=MILK_CHOICES)
      mPurchase_qty=models.FloatField()
      mPurchase_rate=models.FloatField()

      def __str__(self):
      return self.seller


      Can you please help me get through this? I have tried using



      mPurchase.objects.filter()


      Also, tried to catch exception using ObjectDoesNotExist and MultipleObjectReturned



      from django.core.exceptions import ObjectDoesNotExist, 
      MultipleObjectsReturned









      share|improve this question













      I am beginner to django. While trying to save mPurchase form I am getting MultipleObjectReturned error. I am trying to get data from form using POST request. Every time I submit the form I am getting an error.



      views.py



      def milkPurchase(request):
      title='Buy Milk'
      milk = mPurchase.objects.all()

      if request.method=='POST':
      form=mPurchaseForm(request.POST)
      if form.is_valid():
      m = get_object_or_404(mPurchase)
      m.mPurchase_date=timezone.now()
      m.save()
      return redirect('milk-purchase')

      else:
      form=mPurchaseForm()


      context = {
      'title': title,
      'form': form,
      'milk':milk

      }
      return render(request,'dairyapp/milk-purchase.html',context)


      forms.py



      class mPurchaseForm(forms.ModelForm):
      """
      This form is for milk purchase
      """

      seller=forms.CharField(
      label='Seller Name',
      max_length=50,
      )

      mPurchase_product=forms.ChoiceField(
      choices=MILK_CHOICES,
      label='Milk Type',
      initial='',
      widget=forms.Select(),
      required=True
      )

      mPurchase_qty=forms.FloatField(
      label='Qty'
      )

      mPurchase_rate=forms.FloatField(
      label='Rate'
      )

      class Meta:
      model=mPurchase
      fields=('seller','mPurchase_product','mPurchase_qty','mPurchase_rate',)


      here is my
      models.py



      class mPurchase(models.Model):
      mPurchase_id=models.AutoField(primary_key=True)
      seller=models.CharField(max_length=50)
      mPurchase_date=models.DateTimeField(default=timezone.now)
      mPurchase_product=models.CharField(max_length=10,choices=MILK_CHOICES)
      mPurchase_qty=models.FloatField()
      mPurchase_rate=models.FloatField()

      def __str__(self):
      return self.seller


      Can you please help me get through this? I have tried using



      mPurchase.objects.filter()


      Also, tried to catch exception using ObjectDoesNotExist and MultipleObjectReturned



      from django.core.exceptions import ObjectDoesNotExist, 
      MultipleObjectsReturned






      django python-3.x django-models django-forms django-views






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 at 18:09









      anisbhsl

      54




      54
























          1 Answer
          1






          active

          oldest

          votes


















          0














          You need to change in here:



          if request.method=='POST':
          form=mPurchaseForm(request.POST)
          if form.is_valid():
          m = form.save(commit=False) # <--- Here
          m.mPurchase_date=timezone.now()
          m.save()





          share|improve this answer





















            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53436285%2fmultipleobjectsreturned-get-returned-more-than-one-mpurchase-it-returned-2%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            You need to change in here:



            if request.method=='POST':
            form=mPurchaseForm(request.POST)
            if form.is_valid():
            m = form.save(commit=False) # <--- Here
            m.mPurchase_date=timezone.now()
            m.save()





            share|improve this answer


























              0














              You need to change in here:



              if request.method=='POST':
              form=mPurchaseForm(request.POST)
              if form.is_valid():
              m = form.save(commit=False) # <--- Here
              m.mPurchase_date=timezone.now()
              m.save()





              share|improve this answer
























                0












                0








                0






                You need to change in here:



                if request.method=='POST':
                form=mPurchaseForm(request.POST)
                if form.is_valid():
                m = form.save(commit=False) # <--- Here
                m.mPurchase_date=timezone.now()
                m.save()





                share|improve this answer












                You need to change in here:



                if request.method=='POST':
                form=mPurchaseForm(request.POST)
                if form.is_valid():
                m = form.save(commit=False) # <--- Here
                m.mPurchase_date=timezone.now()
                m.save()






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 at 18:52









                ruddra

                11.4k32648




                11.4k32648






























                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.





                    Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                    Please pay close attention to the following guidance:


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53436285%2fmultipleobjectsreturned-get-returned-more-than-one-mpurchase-it-returned-2%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    What visual should I use to simply compare current year value vs last year in Power BI desktop

                    How to ignore python UserWarning in pytest?

                    Alexandru Averescu