mirror of
https://github.com/django/django.git
synced 2024-12-28 03:55:50 +00:00
58 lines
1.4 KiB
Python
58 lines
1.4 KiB
Python
"""
|
|
Tests for F() query expression syntax.
|
|
"""
|
|
|
|
from __future__ import unicode_literals
|
|
|
|
from django.db import models
|
|
from django.utils.encoding import python_2_unicode_compatible
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Employee(models.Model):
|
|
firstname = models.CharField(max_length=50)
|
|
lastname = models.CharField(max_length=50)
|
|
|
|
def __str__(self):
|
|
return '%s %s' % (self.firstname, self.lastname)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Company(models.Model):
|
|
name = models.CharField(max_length=100)
|
|
num_employees = models.PositiveIntegerField()
|
|
num_chairs = models.PositiveIntegerField()
|
|
ceo = models.ForeignKey(
|
|
Employee,
|
|
related_name='company_ceo_set')
|
|
point_of_contact = models.ForeignKey(
|
|
Employee,
|
|
related_name='company_point_of_contact_set',
|
|
null=True)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Number(models.Model):
|
|
integer = models.BigIntegerField(db_column='the_integer')
|
|
float = models.FloatField(null=True, db_column='the_float')
|
|
|
|
def __str__(self):
|
|
return '%i, %.3f' % (self.integer, self.float)
|
|
|
|
|
|
class Experiment(models.Model):
|
|
name = models.CharField(max_length=24)
|
|
assigned = models.DateField()
|
|
completed = models.DateField()
|
|
start = models.DateTimeField()
|
|
end = models.DateTimeField()
|
|
|
|
class Meta:
|
|
ordering = ('name',)
|
|
|
|
def duration(self):
|
|
return self.end - self.start
|