[英]How to Update a field in Django
如果仅从前端发送名称,我想仅更新名称字段,如果仅从前端发送图像,则仅更新图像,如果从前端发送名称和图像,则更新两者在 Django
data =request.data
if data['name'] and data['image']:
category= Category.objects.get(id=data['id'])
category.name=data['name']
category.image=data['image']
category.save()
elif data['name']:
category= Category.objects.get(id=data['id'])
category.name=data['name']
category.save()
else:
category= Category.objects.get(id=data['id'])
category.image=data['image']
category.save()
您可以构造一个只包含要更新的键值对的字典,然后使用.update(…)
[Django-doc]来更新相应的Category
记录:
categories = Category.objects.filter(id=data['id'])
updates = {}
if 'name' in data:
updates['name'] = data['name']
if 'image' in data:
updates['image'] = data['image']
if updates:
categories.update(**updates)
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