我不明白django-import-export模塊如何處理ForeignKeys。 下面是一個簡單爲例: models.py在django-import-export中處理foreignKeys的導入
class TFamilies(models.Model):
id_fam = models.AutoField(primary_key=True, unique=True)
name_fam = models.CharField(max_length=1024, blank=True,verbose_name='Famille')
class TGenus(models.Model):
id_genus = models.AutoField(primary_key=True, unique=True)
name_genus = models.CharField(max_length=1024,verbose_name='nom de genre')
id_fam = models.ForeignKey(TFamilies, null=True, db_column='id_fam', blank=True, verbose_name='Famille')
我想,讓人們加入屬與家人有關!一個只有name_genus和name_fam的CSV/XLS ...(和id留空)。
家庭已經存在於數據庫的大部分時間,Django的中庸之道必須找到正確的身份證號碼......
admin.py
class TGenusResource(resources.ModelResource):
name_fam = fields.Field(widget=widgets.ForeignKeyWidget(TFamilies, 'name_fam'))
class Meta:
model = TGenus
import_id_fields = ['id_genus']
class TGenusAdmin(ImportExportActionModelAdmin):
form = TGenusAdminForm
resource_class = TGenusResource
pass
這種配置導致錯誤在導入接口:
Line number: 1 - 'NoneType' object has no attribute 'name_fam'
Traceback (most recent call last):
File "/....../lib/python2.7/site-packages/import_export/resources.py", line 348, in import_data
row_result.object_repr = force_text(instance)
File "......./lib/python2.7/site-packages/django/utils/encoding.py", line 85, in force_text
s = six.text_type(s)
AttributeError: 'NoneType' object has no attribute 'name_fam'
我不明白... 我也試着回答有:django-import-export resource definition for foreignkey field? 和有點像有:Foreign Key in django migration using django-import-export
我必須用before_import找到自己的比賽嗎?