django-import-export override not working

我重寫了django-import-export資源的方法。但是隻有父方法被執行。django-import-export override not working

models.py

class Model(models.Model): 
    modelField1 = models.CharField(
    modelField2... 
    modelField3...

admin.py

class ModelResource(resources.ModelResource): 

    def before_import(self, dataset, using_transactions, dry_run, **kwargs): 
     print("INside BEfore IMport") 
     dataset.headers = ('modelField1', 'modelField2', ...) 
     del dataset[0] 

    def get_instance(self, instance_loader, row): 
     print("Inside get instance") 
     return False 

    def get_or_init_instance(self, instance_loader, row): 
     print("INside Get or init") 
     instance = self.get_instance(instance_loader, row) 
     if instance: 
      return (instance, False) 
     else: 
      return (self.init_instance(row), True) 

@admin.register(Model) 
class ModelAdmin(ImportExportModelAdmin): 
    class Meta: 
     model = MOdel 
     resource_class = ModelResource 
     list_display = ('modelField1', 'modelField2', ...) 
     search_fields = ('modelField1', 'modelField2', ...)

我不是在所有獲得打印報表控制檯。錯誤直接從父方法拋出。他們不應該被執行。我對嗎？

Line number: 1 - u"Column 'id' not found in dataset. Available columns are: [u'Col1', u'Col2', u'Col2', ...]" 
Traceback (most recent call last): 
File "/home/aswin/projects/mastercityenv/local/lib/python2.7/site-packages/import_export/resources.py", line 434, in import_row 
instance, new = self.get_or_init_instance(instance_loader, row) 
File "/home/aswin/projects/mastercityenv/local/lib/python2.7/site-packages/import_export/resources.py", line 258, in get_or_init_instance 
instance = self.get_instance(instance_loader, row) 
File "/home/aswin/projects/mastercityenv/local/lib/python2.7/site-packages/import_export/resources.py", line 252, in get_instance 
return instance_loader.get_instance(row) 
File "/home/aswin/projects/mastercityenv/local/lib/python2.7/site-packages/import_export/instance_loaders.py", line 32, in get_instance 
params[field.attribute] = field.clean(row) 
File "/home/aswin/projects/mastercityenv/local/lib/python2.7/site-packages/import_export/fields.py", line 63, in clean 
list(data.keys()))) 
KeyError: u"Column 'id' not found in dataset. Available columns are: [u'Col1', u'Col2', u'Col2', ...]"

其中Excel文檔中列名的是所有「col1」，「col2的」，...

問：所以，如果你在上面的代碼請注意錯誤，他們是從我父母重載方法。他們爲什麼執行？應該在控制檯上執行打印行嗎？

來源

2017-10-10 Aswin Kumar K P

你在你的'ModelAdmin' – PRMoureu

@PRMoureu對不起調用'ModelResource'，而不是'ResourceClass'。那是一個錯字 –

根據documentation，嵌套Meta類不是必需的。所以，管理類應該是這樣的：

@admin.register(Model) 
class ModelAdmin(ImportExportModelAdmin): 
    resource_class = ModelResource 
    list_display = ('modelField1', 'modelField2', ...) 
    search_fields = ('modelField1', 'modelField2', ...)

來源

2017-10-10 17:46:17

django-import-export override not working

回答

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