Django: how to use float precision instead of double precision in MySQL

Question

models.FloatFieldcreates a double in MySQL.
Is it possible, and how to create a precision field float instead of double precision?

The rationale is similar to what SmallIntegerField has.

Answer 1

There are several options for this, but I don’t understand why you want to.

• Change it in the database, it will not work when you recreate the tables, but Django will not do a manual translation, so if the database changes, then the results.
• (.. FloatField get_internal_type()), - SinglePrecisionFloatField. creation.DatabaseCreation.data_types (: http://code.djangoproject.com/browser/django/trunk/django/db/backends/mysql/creation.py)
• FloatField . , / FloatField .

Answer 2

, , . , db, db_type() django.

django, Field

class customFloatField(models.Field): 
    def db_type(self,connection):
        return 'float'

number = customFloatField(null=True,blank=True)

, MySQL. , if .

https://docs.djangoproject.com/en/dev/howto/custom-model-fields/