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Question

我想加载一个包含小数的夹具。夹具是json "salarymax": "58,689.54",根据django的文档，我添加了这些值：

USE_I18N = True
USE_L10N = True
USE_THOUSAND_SEPARATOR = True

以下是灯具的片段：

{
    "fields": {
        ...#shortened
        "pub_date": "2015-12-23",
        "salarymax": "58,689.54",
        "salarymin": "50,164.66",
        "salarytype": "annually"
    },
    "model": "emplois.job",
    "pk": 1
},

这是我的模型（暂时只有salarymax位于十进制）

在此处创建模型。

@python_2_unicode_compatible
class Job(models.Model):
    #...shortened
    joburl = models.URLField(max_length=250, blank=True, null=True)
    expirydate = models.DateField(auto_now=True, blank=True, null=True)
    salarymax = models.DecimalField(max_digits=8, decimal_places=2, localize=True)
    salarymin = models.CharField(max_length=40, blank=True, null=True)
    salarytype = models.CharField(max_length=20, blank=True, null=True) 
    name = models.CharField(max_length=40, blank=True, null=True) 
    ...

python manage.py loaddata fixtures/data.json这里是错误的摘录：

  File "/home/guinslyziho/development/public/tutorial/django_website_documentation/ottawacitijobs/new_app/ottawacityjobs/emplois/models.py", line 12, in <module>
    class Job(models.Model):
  File "/home/guinslyziho/development/public/tutorial/django_website_documentation/ottawacitijobs/new_app/ottawacityjobs/emplois/models.py", line 34, in Job
    salarymax = models.DecimalField(max_digits=8, decimal_places=2, localize=True)
  File "/home/guinslyziho/development/public/tutorial/django_website_documentation/env_python_3.4/lib/python3.4/site-packages/django/db/models/fields/__init__.py", line 1484, in __init__
    super(DecimalField, self).__init__(verbose_name, name, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'localize'

Answer 1

参数localize用于表单，而不是模型。

class Job(models.Model):
    #...shortened
    joburl = models.URLField(max_length=250, blank=True, null=True)
    expirydate = models.DateField(auto_now=True, blank=True, null=True)
    salarymax = models.DecimalField(max_digits=8, decimal_places=2)
    salarymin = models.CharField(max_length=40, blank=True, null=True)
    salarytype = models.CharField(max_length=20, blank=True, null=True) 
    name = models.CharField(max_length=40, blank=True, null=True) 
    ...

灯具中适当的十进制数格式为：

<强>浮

{
    "fields": {
        ...#shortened
        "pub_date": "2015-12-23",
        "salarymax": 58689.54,
        "salarymin": "50,164.66",
        "salarytype": "annually"
    },
    "model": "emplois.job",
    "pk": 1
},

格式化字符串

{
    "fields": {
        ...#shortened
        "pub_date": "2015-12-23",
        "salarymax": '58689.54',
        "salarymin": "50,164.66",
        "salarytype": "annually"
    },
    "model": "emplois.job",
    "pk": 1
},

在这种情况下，字符串无法本地化。

试试这个：

>>> from decimal import Decimal
>>> Decimal(58100.23)
Decimal('58100.2300000000032014213502407073974609375')
>>> Decimal('58100.23')
Decimal('58100.23')
>>> Decimal('58,100.23')
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    Decimal('58,100.23')
  File "/usr/lib/python3.5/_pydecimal.py", line 597, in __new__
    "Invalid literal for Decimal: %r" % value)
  File "/usr/lib/python3.5/_pydecimal.py", line 4032, in _raise_error
    raise error(explanation)
decimal.InvalidOperation: Invalid literal for Decimal: '58,100.23'

Django：如何加载包含Decimal的fixture

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1 个答案: