What s the best way to store Phone number in Django models

Question

I am storing a phone number in model like this   phone number   models CharField max length 12    User would enter a phone number and I would use the phone number for SMS Authentication This application would be used globally  So I would also need country code  Is CharField a good way to store phone number  And  how do I validate the phone number

User · Answer

Validation is easy  text them a little code to type in  A CharField is a great way to store it  I wouldn t worry too much about canonicalizing phone numbers

User · Answer

Use CharField for phone field in the model and the localflavor app for form validation   https   docs djangoproject com en 1 7 topics localflavor

User · Answer

You might actually look into the internationally standardized format E 164  recommended by Twilio for example  who have a service and an API for sending SMS or phone-calls via REST requests     This is likely to be the most universal way to store phone numbers  in particular if you have international numbers work with   1  Phone by PhoneNumberField  You can use phonenumber field library  It is port of Google s libphonenumber library  which powers Android s phone number handling https   github com stefanfoulis django-phonenumber-field  In model   from phonenumber field modelfields import PhoneNumberField  class Client models Model  Importable       phone   PhoneNumberField null False  blank False  unique True    In form   from phonenumber field formfields import PhoneNumberField class ClientForm forms Form       phone   PhoneNumberField     Get phone as string from object field       client phone as e164    Normolize phone string  for tests and other staff        from phonenumber field phonenumber import PhoneNumber     phone   PhoneNumber from string phone number raw phone  region  RU   as e164   2  Phone by regexp  One note for your model  E 164 numbers have a max character length of 15   To validate  you can employ some combination of formatting and then attempting to contact the number immediately to verify   I believe I used something like the following on my django project   class ReceiverForm forms ModelForm       phone number   forms RegexField regex r     1  d 9 15                                      error message     Phone number must be entered in the format    999999999   Up to 15 digits allowed         EDIT   It appears that this post has been useful to some folks  and it seems worth it to integrate the comment below into a more full-fledged answer  As per jpotter6  you can do something like the following on your models as well           models py   from django core validators import RegexValidator  class PhoneModel models Model               phone regex   RegexValidator regex r     1  d 9 15     message  Phone number must be entered in the format    999999999   Up to 15 digits allowed        phone number   models CharField validators  phone regex   max length 17  blank True    validators should be a list

User · Answer

Use django-phonenumber-field  https   github com stefanfoulis django-phonenumber-field  pip install django-phonenumber-field

User · Answer

Others mentioned django-phonenumber-field  To get the display format how you want you need to set PHONENUMBER DEFAULT FORMAT setting to  E164    INTERNATIONAL    NATIONAL   or  RFC3966   however you want it displayed  See the GitHub source

User · Answer

It all depends in what you understand as phone number  Phone numbers are country specific  The localflavors packages for several countries contains their own  phone number field   So if you are ok being country specific you should take a look at localflavor package  class us models PhoneNumberField for US case  etc    Otherwise you could inspect the localflavors to get the maximun lenght for all countries  Localflavor also has forms fields you could use in conjunction with the country code to validate the phone number

User · Answer

I will describe what I use   Validation  string contains more than 5 digits   Cleaning  removing all non digits symbols  write in db only numbers  I m lucky  because in my country  Russia  everybody has phone numbers with 10 digits  So I store in db only 10 diits  If you are writing multi-country application  then you should make a comprehensive validation   Rendering  I write custom template tag to render it in template nicely  Or even render it like a picture - it is more safe to prevent sms spam

User · Answer

This solution worked for me  First install django-phone-field command  pip install django-phone-field  then on models py from phone field import PhoneField      class Client models Model               phone number   PhoneField blank True  help text  Contact phone number    and on settings py INSTALLED APPS                            phone field     It looks like this in the end

[django] What's the best way to store Phone number in Django models

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