Re: What's wrong with this model

Hi

You may change elogin column syntax and provide default="Some_Value" .This may work.

On Tuesday, May 28, 2019, Chandrashekhar Singh <chandrashekhar721@gmail.com> wrote:

You have to add null= true to each model field since database needs default value

On Mon, May 27, 2019, 5:52 PM Saeed Pooladzadeh <lingo1357@gmail.com> wrote:

Hello

I made this model and think everything is fine:

class Smodel(models.Model):

    eid=models.AutoField(primary_key=True)

   # eid=models.IntegerField(default=0)

    elogin = models.CharField(max_length=8) 

    epassword= models.CharField(max_length=8) 

  

    elikeDay=models.IntegerField(default=0)

    efollowPerDay=models.IntegerField(default=0)

    

   

    #esession = models.TextField()

    class Meta:  

        db_table = "saeed"  

  'But when I try to 'make migration 

I get this error:

You are trying to add a non-nullable field 'elogin' to smodel without a default; we can't do that (the database needs something to populate existing rows).

Please select a fix:

 1) Provide a one-off default now (will be set on all existing rows with a null value for this column)

 2) Quit, and let me add a default in models.py

Select an option: 

What is wrong with this model and how can I resolve it?

regards,

Saeed 

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