[Django] #35431: Failing to serialize NumericRange with CheckConstraint on IntegerRangeField

[Django]

#35431: Failing to serialize NumericRange with CheckConstraint on 
IntegerRangeField
--------------------------------------+------------------------
               Reporter:  Arran       |          Owner:  nobody
                   Type:  Bug         |         Status:  new
              Component:  Migrations  |        Version:  5.0
               Severity:  Normal      |       Keywords:
           Triage Stage:  Unreviewed  |      Has patch:  0
    Needs documentation:  0           |    Needs tests:  0
Patch needs improvement:  0           |  Easy pickings:  0
                  UI/UX:  0           |
--------------------------------------+------------------------
 I am trying to create a PostgreSQL check constraint on an
 `IntegerRangeField`, but when I run `makemigrations` I get the following
 error:

 {{{
 ValueError: Cannot serialize: Range(1, 10000, '[)')
 There are some values Django cannot serialize into migration files.
 }}}

 Here's a simple example of my model which raises the error:

 {{{
 from django.contrib.postgres.fields import IntegerRangeField
 from django.db.backends.postgresql.psycopg_any import NumericRange
 from django.db import models
 from django.db.models.constraints import CheckConstraint
 from django.db.models.expressions import Q


 class MyModel(models.Model):
     price_range = IntegerRangeField()

     class Meta:
         constraints = [
             CheckConstraint(
                 check=Q(price_range__contained_by=NumericRange(1, 10000)),
                 name="price_range_gt_1_and_lte_10000",
             )
         ]
 }}}

 Judging by the following ticket this should work, so any help would be
 welcome:

 [https://code.djangoproject.com/ticket/30258]

 Thanks!
-- 
Ticket URL: <https://code.djangoproject.com/ticket/35431>
Django <https://code.djangoproject.com/>
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