Django: form validation for a form with tabular inline
0
Hello i have registered models like that
# models.py
class Property(models.Model):
address = models.TextField()
...
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
and:
# admin.py
class PropertyImageInline(admin.TabularInline):
model = PropertyImage
extra = 3
class PropertyAdmin(admin.ModelAdmin):
inlines = [ PropertyImageInline, ]
admin.site.register(Property, PropertyAdmin)
The is front picture is boolean so I know which will be the picture to be shown on the announces
Problem
I don't know how to make validation so I can throw an eror If 0 or more that 1 picture were chosen as is_front can you please help me with the admin form validation?
Thank you!
django django-admin
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
add a comment |
0
Hello i have registered models like that
# models.py
class Property(models.Model):
address = models.TextField()
...
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
and:
# admin.py
class PropertyImageInline(admin.TabularInline):
model = PropertyImage
extra = 3
class PropertyAdmin(admin.ModelAdmin):
inlines = [ PropertyImageInline, ]
admin.site.register(Property, PropertyAdmin)
The is front picture is boolean so I know which will be the picture to be shown on the announces
Problem
I don't know how to make validation so I can throw an eror If 0 or more that 1 picture were chosen as is_front can you please help me with the admin form validation?
Thank you!
django django-admin
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
add a comment |
0
0
0
Hello i have registered models like that
# models.py
class Property(models.Model):
address = models.TextField()
...
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
and:
# admin.py
class PropertyImageInline(admin.TabularInline):
model = PropertyImage
extra = 3
class PropertyAdmin(admin.ModelAdmin):
inlines = [ PropertyImageInline, ]
admin.site.register(Property, PropertyAdmin)
The is front picture is boolean so I know which will be the picture to be shown on the announces
Problem
I don't know how to make validation so I can throw an eror If 0 or more that 1 picture were chosen as is_front can you please help me with the admin form validation?
Thank you!
django django-admin
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
Hello i have registered models like that
# models.py
class Property(models.Model):
address = models.TextField()
...
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
and:
# admin.py
class PropertyImageInline(admin.TabularInline):
model = PropertyImage
extra = 3
class PropertyAdmin(admin.ModelAdmin):
inlines = [ PropertyImageInline, ]
admin.site.register(Property, PropertyAdmin)
The is front picture is boolean so I know which will be the picture to be shown on the announces
Problem
I don't know how to make validation so I can throw an eror If 0 or more that 1 picture were chosen as is_front can you please help me with the admin form validation?
Thank you!
django django-admin
django django-admin
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
asked Nov 14 '18 at 15:06
Kostadin SlavovKostadin Slavov
762219
762219
add a comment |
add a comment |
1 Answer
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One way you can do it is to create a clean method on PropertyImage which will be used to validate the data in the admin.
from django.core.exceptions import ValidationError
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
# Clean will only be called within the Admin.
# If you have other places this needs to be verified,
# you'll need to call it manually or move this logic into a ModelForm.
def clean(self):
images = self.property.images.all()
# If we're editing, we want to exclude ourselves from the check.
if self.id:
images = images.exclude(id=self.id)
if self.is_front and images.filter(is_front=True).exists():
raise ValidationError("Only one image can have is_front set.")
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
One way you can do it is to create a clean method on PropertyImage which will be used to validate the data in the admin.
from django.core.exceptions import ValidationError
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
# Clean will only be called within the Admin.
# If you have other places this needs to be verified,
# you'll need to call it manually or move this logic into a ModelForm.
def clean(self):
images = self.property.images.all()
# If we're editing, we want to exclude ourselves from the check.
if self.id:
images = images.exclude(id=self.id)
if self.is_front and images.filter(is_front=True).exists():
raise ValidationError("Only one image can have is_front set.")
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
add a comment |
1
One way you can do it is to create a clean method on PropertyImage which will be used to validate the data in the admin.
from django.core.exceptions import ValidationError
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
# Clean will only be called within the Admin.
# If you have other places this needs to be verified,
# you'll need to call it manually or move this logic into a ModelForm.
def clean(self):
images = self.property.images.all()
# If we're editing, we want to exclude ourselves from the check.
if self.id:
images = images.exclude(id=self.id)
if self.is_front and images.filter(is_front=True).exists():
raise ValidationError("Only one image can have is_front set.")
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
add a comment |
1
1
1
One way you can do it is to create a clean method on PropertyImage which will be used to validate the data in the admin.
from django.core.exceptions import ValidationError
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
# Clean will only be called within the Admin.
# If you have other places this needs to be verified,
# you'll need to call it manually or move this logic into a ModelForm.
def clean(self):
images = self.property.images.all()
# If we're editing, we want to exclude ourselves from the check.
if self.id:
images = images.exclude(id=self.id)
if self.is_front and images.filter(is_front=True).exists():
raise ValidationError("Only one image can have is_front set.")
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
One way you can do it is to create a clean method on PropertyImage which will be used to validate the data in the admin.
from django.core.exceptions import ValidationError
class PropertyImage(models.Model):
property = models.ForeignKey(Property, related_name='images')
image = models.ImageField()
is_front = models.BooleanField(default=False)
# Clean will only be called within the Admin.
# If you have other places this needs to be verified,
# you'll need to call it manually or move this logic into a ModelForm.
def clean(self):
images = self.property.images.all()
# If we're editing, we want to exclude ourselves from the check.
if self.id:
images = images.exclude(id=self.id)
if self.is_front and images.filter(is_front=True).exists():
raise ValidationError("Only one image can have is_front set.")
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
answered Nov 14 '18 at 15:26
schillingtschillingt
5,61211822
5,61211822
add a comment |
add a comment |
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