Condition in Model Django

i want company_name to be unique=True when company_is_deleted=False. Similarly when company_is_deleted=True then company_name to be unique=False. Where i am using soft delete means that i am just setting company_is_deleted=True and not deleting it from database table.

Company Model

class Company(models.Model):

    company_name = models.CharField(max_length=20, unique=True) # Here

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)

View.py

class CompanyCreateView(LoginRequiredMixin, generic.CreateView):

    model = Company

    fields = ['company_name', 'company_description', 'company_email', 

    'company_website', 'company_address', 'company_phone', 'company_status', 

    'company_monthly_payment', 'company_logo']

asked Jan 2 at 10:56

Huzaif Sayyed

640119

Don't set unique=True. Instead, write a small if...else logic to get the behaviour that you want.

– xyres
Jan 2 at 11:05

add a comment |

Company Model

class Company(models.Model):

    company_name = models.CharField(max_length=20, unique=True) # Here

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)

View.py

class CompanyCreateView(LoginRequiredMixin, generic.CreateView):

    model = Company

    fields = ['company_name', 'company_description', 'company_email', 

    'company_website', 'company_address', 'company_phone', 'company_status', 

    'company_monthly_payment', 'company_logo']

asked Jan 2 at 10:56

Huzaif Sayyed

640119

Don't set unique=True. Instead, write a small if...else logic to get the behaviour that you want.

– xyres
Jan 2 at 11:05

add a comment |

Company Model

class Company(models.Model):

    company_name = models.CharField(max_length=20, unique=True) # Here

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)

View.py

class CompanyCreateView(LoginRequiredMixin, generic.CreateView):

    model = Company

    fields = ['company_name', 'company_description', 'company_email', 

    'company_website', 'company_address', 'company_phone', 'company_status', 

    'company_monthly_payment', 'company_logo']

asked Jan 2 at 10:56

Huzaif Sayyed

640119

Company Model

class Company(models.Model):

    company_name = models.CharField(max_length=20, unique=True) # Here

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)

View.py

class CompanyCreateView(LoginRequiredMixin, generic.CreateView):

    model = Company

    fields = ['company_name', 'company_description', 'company_email', 

    'company_website', 'company_address', 'company_phone', 'company_status', 

    'company_monthly_payment', 'company_logo']

django django-models django-forms django-templates django-views

asked Jan 2 at 10:56

Huzaif Sayyed

640119

asked Jan 2 at 10:56

Huzaif Sayyed

640119

asked Jan 2 at 10:56

Huzaif Sayyed

640119

asked Jan 2 at 10:56

Huzaif Sayyed

640119

asked Jan 2 at 10:56

Huzaif Sayyed

640119

Don't set unique=True. Instead, write a small if...else logic to get the behaviour that you want.

– xyres
Jan 2 at 11:05

add a comment |

Don't set unique=True. Instead, write a small if...else logic to get the behaviour that you want.

– xyres
Jan 2 at 11:05

Don't set unique=True. Instead, write a small if...else logic to get the behaviour that you want.

– xyres
Jan 2 at 11:05

add a comment |

1 Answer
1

active

oldest

votes

You can add that logic into save method. But remove unique from company_name field.

from django.db import IntegrityError





class Company(models.Model):

    company_name = models.CharField(max_length=20)

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)



    def save(self, *args, **kwargs):

        if not self.company_is_deleted and Company.objects.filter(

            company_name=self.company_name, 

            company_is_deleted=False

        ).exists():

            raise IntegrityError    

        super(Company, self).save(*args, **kwargs)

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

add a comment |

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

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54005084%2fcondition-in-model-django%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can add that logic into save method. But remove unique from company_name field.

from django.db import IntegrityError





class Company(models.Model):

    company_name = models.CharField(max_length=20)

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)



    def save(self, *args, **kwargs):

        if not self.company_is_deleted and Company.objects.filter(

            company_name=self.company_name, 

            company_is_deleted=False

        ).exists():

            raise IntegrityError    

        super(Company, self).save(*args, **kwargs)

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

add a comment |

You can add that logic into save method. But remove unique from company_name field.

from django.db import IntegrityError





class Company(models.Model):

    company_name = models.CharField(max_length=20)

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)



    def save(self, *args, **kwargs):

        if not self.company_is_deleted and Company.objects.filter(

            company_name=self.company_name, 

            company_is_deleted=False

        ).exists():

            raise IntegrityError    

        super(Company, self).save(*args, **kwargs)

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

add a comment |

You can add that logic into save method. But remove unique from company_name field.

from django.db import IntegrityError





class Company(models.Model):

    company_name = models.CharField(max_length=20)

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)



    def save(self, *args, **kwargs):

        if not self.company_is_deleted and Company.objects.filter(

            company_name=self.company_name, 

            company_is_deleted=False

        ).exists():

            raise IntegrityError    

        super(Company, self).save(*args, **kwargs)

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

You can add that logic into save method. But remove unique from company_name field.

from django.db import IntegrityError





class Company(models.Model):

    company_name = models.CharField(max_length=20)

    company_description = models.CharField(max_length=100)

    company_address = models.CharField(max_length=100)

    company_email = models.EmailField()

    company_website = models.URLField()

    company_phone = models.CharField(max_length=30)

    company_monthly_payment = models.DecimalField(max_digits=5, decimal_places=2)

    company_logo = models.ImageField(upload_to='company_logo', default='default_company.png',blank=True, null=True)

    company_created = models.DateTimeField(auto_now_add=True)

    company_is_deleted = models.BooleanField(default=False)



    def save(self, *args, **kwargs):

        if not self.company_is_deleted and Company.objects.filter(

            company_name=self.company_name, 

            company_is_deleted=False

        ).exists():

            raise IntegrityError    

        super(Company, self).save(*args, **kwargs)

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

edited Jan 2 at 11:32

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

answered Jan 2 at 11:09

Sergey Pugach

2,4781620

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

add a comment |

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

instead of raising Integrity Error i want to raise Validation Error. Similar to like this raise forms.ValidationError(u'Email already exist.')

– Huzaif Sayyed
Jan 2 at 11:15

You can override save method in your forms.py instead. So before hitting database, this condition is checked.

– Reza Torkaman Ahmadi
Jan 2 at 11:21

but i dont have forms.py i am using generic.CreateView

– Huzaif Sayyed
Jan 2 at 11:30

add a comment |

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.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

Search This Blog

Ufyukyu