After throws an exception in a migration

[tpow]

As mentioned in Slack, I was attempting to use after in a migration as shown in the documentation table.string('is_admin').after('email'). In Masonite-orm 1.0.55 it is throwing an exception "'NoneType' object is not callable" in masoniteorm/schema/Blueprint.py line 874. The line is self._last_column.after(old_column).

To Reproduce
Steps to reproduce the behavior:

1. Create a basic migration like this (all boilerplate from craft migration -t users except for the added line from the documentation).

from masoniteorm.migrations import Migration                                     
                                                                                 
                                                                                 
class MigrationForUsersTable(Migration):                                         
    def up(self):                                                                
        """                                                                      
        Run the migrations.                                                      
        """                                                                      
        with self.schema.table("users") as table:                                
            table.string('is_admin').after('email')                              
                                                                                 
    def down(self):                                                              
        """                                                                      
        Revert the migrations.                                                   
        """                                                                      
        pass  

2. Do the migration with craft migrate

The migration runs somewhat -- the is_admin column gets added to the end of the table, but not after the email column as intended. Because it throws the exception, the migration does not complete successfully.

What database are you using?

• Type: MariaDB
• Version 10.1something on Ubuntu
• Masonite ORM v1.0.55

Other notes
Joseph Mancuso suggested that perhaps string is not setting _last_column.

I found this while trying to do a migration that alters several table columns and simplified it. It feels like the documentation for creating tables is pretty good, but altering them could use more examples.