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





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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 '18 at 18:09









      anisbhslanisbhsl

      54




      54
























          1 Answer
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          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
























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            1 Answer
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            active

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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

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            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 '18 at 18:52









                ruddraruddra

                16.8k42951




                16.8k42951
































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