[英]Dynamically setting readonly_fields in django admin
Can I change readonly_fields
in my TranslationAdmin
class dependent on the value of a certain field in the Translation
being viewed? 我可以更改TranslationAdmin
类中的readonly_fields
,具体取决于正在查看的Translation
某个字段的值吗? If so, how would I do that? 如果是这样,我该怎么做?
The only thing I've come up with is to make a widget that looks at the Translation
and decides whether to be a readonly widget or not, but that seems like overkill for this. 我唯一想到的是创建一个查看Translation
的小部件,并决定是否是一个只读小部件,但这似乎有点矫枉过正。
You can inherit the function get_readonly_fields() in your admin and set readonly fields according your model's certain field value 您可以在管理员中继承get_readonly_fields()函数,并根据模型的特定字段值设置只读字段
class TranslationAdmin(admin.ModelAdmin):
...
def get_readonly_fields(self, request, obj=None):
if obj.certainfield == something:
return ('field1', 'field2')
else:
return super(TranslationAdmin, self).get_readonly_fields(request, obj)
I hope it will help you. 我希望它会对你有所帮助。
Here is an example of: 这是一个例子:
Inheriting from that ModelAdmin (ShapefileSetAdmin) and adding an additional value to readonly_fields 继承自ModelAdmin(ShapefileSetAdmin)并向readonly_fields添加其他值
class GISDataFileAdmin(admin.ModelAdmin): # Note(!): this is a list, NOT a tuple readonly_fields = ['modified', 'created', 'md5',] class ShapefileSetAdmin(GISDataFileAdmin): def get_readonly_fields(self, request, obj=None): # inherits readonly_fields from GISDataFileAdmin and adds another # retrieve current readonly fields ro_fields = super(ShapefileSetAdmin, self).get_readonly_fields(request, obj) # check if new field already exists, if not, add it # # Note: removing the 'if not' check will add the new read-only field # each time you go to the 'add' page in the admin # eg, you can end up with: # ['modified', 'created', 'md5', 'shapefile_load_path', 'shapefile_load_path, 'shapefile_load_path', etc.] # if not 'shapefile_load_path' in ro_fields: ro_fields.append('shapefile_load_path') return ro_fields
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