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當我運行:Django loaddata拋出ValidationError:[u'在YYYY-MM-DD格式中輸入一個有效的日期。]在null = true字段中?
django-admin.py loaddata ../data/library_authors.json
的錯誤是:
...
ValidationError: [u'Enter a valid date in YYYY-MM-DD format.']
型號:
class Writer(models.Model):
first = models.CharField(u'First Name', max_length=30)
other = models.CharField(u'Other Names', max_length=30, blank=True)
last = models.CharField(u'Last Name', max_length=30)
dob = models.DateField(u'Date of Birth', blank=True, null=True)
class Meta:
abstract = True
ordering = ['last']
unique_together = ("first", "last")
class Author(Writer):
language = models.CharField(max_length=20, choices=LANGUAGES, blank=True)
class Meta:
verbose_name = 'Author'
verbose_name_plural = 'Authors'
注意,出生日期的DateField有空白=真,空=真
json文件的結構:
[
{
"pk": 1,
"model": "books.author",
"fields": {
"dob": "",
"other": "",
"last": "Carey",
"language": "",
"first": "Peter"
}
},
{
"pk": 3,
"model": "books.author",
"fields": {
"dob": "",
"other": "",
"last": "Brown",
"language": "",
"first": "Carter"
}
}
]
備份mysql數據庫的相關表中的相關日期字段設置爲NULL,默認情況下爲null? =是。
關於我在做什麼錯的任何想法或如何讓loaddata接受空日期值?
===== 編輯:
丹尼爾的回答工作,我redfaced。