How can I update a Model and do something with this object or other?
up vote
0
down vote
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My model has 7 fields, but I want update a only field. I'm using CBC(generic.UpdateView) with model and form_class. My forms works normally, but,
I want do things depending on value for this Field.
I don't know what method override.
ModelA:
atribute_a
atribute_b
atribute_c
I need change only atribute_a, but atribute_b is a dateTime, and a I want update atribute_b with timezone.now() when update atribute_a, and after that I want update a another object with ForeignKey with atribute_c for example.
basically in a UpdateView, I want this:
In a some method(save, post, dispatch or other)
atribute_b = timezone.now()
if atribute_a == 'abc':
ModelB.objects.filter(atribute_c=atribute_c).update(atribute_c = atribute_c+1)
python django django-models django-views
edited Nov 20 at 6:36
Aqueous Carlos
295213
asked Nov 20 at 3:23
Matheus Soares
417
add a comment |
up vote
0
down vote
favorite
My model has 7 fields, but I want update a only field. I'm using CBC(generic.UpdateView) with model and form_class. My forms works normally, but,
I want do things depending on value for this Field.
I don't know what method override.
ModelA:
atribute_a
atribute_b
atribute_c
I need change only atribute_a, but atribute_b is a dateTime, and a I want update atribute_b with timezone.now() when update atribute_a, and after that I want update a another object with ForeignKey with atribute_c for example.
basically in a UpdateView, I want this:
In a some method(save, post, dispatch or other)
atribute_b = timezone.now()
if atribute_a == 'abc':
ModelB.objects.filter(atribute_c=atribute_c).update(atribute_c = atribute_c+1)
python django django-models django-views
edited Nov 20 at 6:36
Aqueous Carlos
295213
asked Nov 20 at 3:23
Matheus Soares
417
Did you look at Django Signals, I would check out thepost_saveandpre_savesignals. You can also override the model'ssavemethod, but I don't think that's good practice
– robotHamster
Nov 20 at 4:06
you can addauto_nowto attribute_b
– ruddra
Nov 20 at 4:26
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
My model has 7 fields, but I want update a only field. I'm using CBC(generic.UpdateView) with model and form_class. My forms works normally, but,
I want do things depending on value for this Field.
I don't know what method override.
ModelA:
atribute_a
atribute_b
atribute_c
I need change only atribute_a, but atribute_b is a dateTime, and a I want update atribute_b with timezone.now() when update atribute_a, and after that I want update a another object with ForeignKey with atribute_c for example.
basically in a UpdateView, I want this:
In a some method(save, post, dispatch or other)
atribute_b = timezone.now()
if atribute_a == 'abc':
ModelB.objects.filter(atribute_c=atribute_c).update(atribute_c = atribute_c+1)
python django django-models django-views
edited Nov 20 at 6:36
Aqueous Carlos
295213
asked Nov 20 at 3:23
Matheus Soares
417
My model has 7 fields, but I want update a only field. I'm using CBC(generic.UpdateView) with model and form_class. My forms works normally, but,
I want do things depending on value for this Field.
I don't know what method override.
ModelA:
atribute_a
atribute_b
atribute_c
I need change only atribute_a, but atribute_b is a dateTime, and a I want update atribute_b with timezone.now() when update atribute_a, and after that I want update a another object with ForeignKey with atribute_c for example.
basically in a UpdateView, I want this:
In a some method(save, post, dispatch or other)
atribute_b = timezone.now()
if atribute_a == 'abc':
ModelB.objects.filter(atribute_c=atribute_c).update(atribute_c = atribute_c+1)
python django django-models django-views
python django django-models django-views
edited Nov 20 at 6:36
Aqueous Carlos
295213
asked Nov 20 at 3:23
Matheus Soares
417
edited Nov 20 at 6:36
Aqueous Carlos
295213
asked Nov 20 at 3:23
Matheus Soares
417
edited Nov 20 at 6:36
Aqueous Carlos
295213
edited Nov 20 at 6:36
Aqueous Carlos
295213
edited Nov 20 at 6:36
Aqueous Carlos
295213
295213
asked Nov 20 at 3:23
Matheus Soares
417
asked Nov 20 at 3:23
Matheus Soares
417
asked Nov 20 at 3:23
Matheus Soares
417
417
Did you look at Django Signals, I would check out thepost_saveandpre_savesignals. You can also override the model'ssavemethod, but I don't think that's good practice
– robotHamster
Nov 20 at 4:06
you can addauto_nowto attribute_b
– ruddra
Nov 20 at 4:26
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17
add a comment |
Did you look at Django Signals, I would check out thepost_saveandpre_savesignals. You can also override the model'ssavemethod, but I don't think that's good practice
– robotHamster
Nov 20 at 4:06
you can addauto_nowto attribute_b
– ruddra
Nov 20 at 4:26
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17
Did you look at Django Signals, I would check out the
post_save and pre_save signals. You can also override the model's save method, but I don't think that's good practice– robotHamster
Nov 20 at 4:06
Did you look at Django Signals, I would check out the
post_save and pre_save signals. You can also override the model's save method, but I don't think that's good practice– robotHamster
Nov 20 at 4:06
you can add
auto_now to attribute_b– ruddra
Nov 20 at 4:26
you can add
auto_now to attribute_b– ruddra
Nov 20 at 4:26
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
I used def save(self, commit=True): in my forms.py, and in my view.py I used generic.UpdateView with model and form_class.
code from my forms.
class MyForm(ModelForm):
class Meta:
fields = ['atribute_a']
exclude = ['atribute_b', 'atribute_c']
def save(self, commit=True):
instance = super(MyForm, self).save(commit=False)
instance.atribute_b = timezone.now()
# do something with FK
answered Nov 20 at 17:22
Matheus Soares
417
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
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active
oldest
votes
up vote
0
down vote
I used def save(self, commit=True): in my forms.py, and in my view.py I used generic.UpdateView with model and form_class.
code from my forms.
class MyForm(ModelForm):
class Meta:
fields = ['atribute_a']
exclude = ['atribute_b', 'atribute_c']
def save(self, commit=True):
instance = super(MyForm, self).save(commit=False)
instance.atribute_b = timezone.now()
# do something with FK
answered Nov 20 at 17:22
Matheus Soares
417
add a comment |
up vote
0
down vote
I used def save(self, commit=True): in my forms.py, and in my view.py I used generic.UpdateView with model and form_class.
code from my forms.
class MyForm(ModelForm):
class Meta:
fields = ['atribute_a']
exclude = ['atribute_b', 'atribute_c']
def save(self, commit=True):
instance = super(MyForm, self).save(commit=False)
instance.atribute_b = timezone.now()
# do something with FK
answered Nov 20 at 17:22
Matheus Soares
417
add a comment |
up vote
0
down vote
up vote
0
down vote
I used def save(self, commit=True): in my forms.py, and in my view.py I used generic.UpdateView with model and form_class.
code from my forms.
class MyForm(ModelForm):
class Meta:
fields = ['atribute_a']
exclude = ['atribute_b', 'atribute_c']
def save(self, commit=True):
instance = super(MyForm, self).save(commit=False)
instance.atribute_b = timezone.now()
# do something with FK
answered Nov 20 at 17:22
Matheus Soares
417
I used def save(self, commit=True): in my forms.py, and in my view.py I used generic.UpdateView with model and form_class.
code from my forms.
class MyForm(ModelForm):
class Meta:
fields = ['atribute_a']
exclude = ['atribute_b', 'atribute_c']
def save(self, commit=True):
instance = super(MyForm, self).save(commit=False)
instance.atribute_b = timezone.now()
# do something with FK
answered Nov 20 at 17:22
Matheus Soares
417
answered Nov 20 at 17:22
Matheus Soares
417
answered Nov 20 at 17:22
Matheus Soares
417
answered Nov 20 at 17:22
Matheus Soares
417
417
add a comment |
add a comment |
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Did you look at Django Signals, I would check out the
post_saveandpre_savesignals. You can also override the model'ssavemethod, but I don't think that's good practice– robotHamster
Nov 20 at 4:06
you can add
auto_nowto attribute_b– ruddra
Nov 20 at 4:26
This a update, auto_now when object is created, I want the time when object will change. The signal is when, always object have changes, created or updated, I want make changes only in this casa?
– Matheus Soares
Nov 20 at 11:16
How can I make Update with TemplateView??
– Matheus Soares
Nov 20 at 11:17