Python 如何在 django admin 上添加只读内联
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How to add readonly inline on django admin
提问by Hassek
I am using django 1.4 and I have a many2many field, so when creating the admin site I wanted to add this field as an inline, here is some code:
我正在使用 django 1.4 并且我有一个 many2many 字段，所以在创建管理站点时我想将此字段添加为内联，这是一些代码：
class SummaryInline(admin.TabularInline):
model = ParserError.summaries.through
class MyClassAdmin(admin.ModelAdmin):
list_display = ('classifier', 'name', 'err_count', 'supported')
fields = ('classifier', 'name', 'err_count', 'err_classifier', 'supported')
inlines = (SummaryInline,)
readonly_fields = ('classifier', 'err_count')
So my question is, how can I make the inline field readonly?
所以我的问题是，如何使内联字段只读？
采纳答案by Hassek
After a while of trying to find the name I figured out thanks to this answer, so I checked the names at self.opts.local_fieldsand found the name of the middle table and added it to readonly_fields, setting can_deleteto False.
多亏了这个答案，我尝试了一段时间后找到了名称，所以我检查了名称，self.opts.local_fields找到了中间表的名称并将其添加到readonly_fields，设置can_delete为 False。
class SummaryInline(admin.TabularInline):
model = ParserError.summaries.through
readonly_fields = ('myclasssummary',)
can_delete = False
pretty simple but took me a while so I figured out it was a good idea to add it here.
很简单，但花了我一段时间，所以我想在这里添加它是个好主意。
回答by Keval Prabhu
Additionally, if you do not want the ability to add/delete the rows, you can add these definitions.
此外，如果您不想添加/删除行，您可以添加这些定义。
def has_add_permission(self, request, obj=None):
return False
def has_delete_permission(self, request, obj=None):
return False
回答by Muhammad Hafid
Thanks Keval Prabhu
感谢凯瓦尔·帕布
class UnitsInline(admin.TabularInline):
model = Units
extra = 0
verbose_name = 'Units'
verbose_name_plural = 'Units of company'
**def has_add_permission(self, request, obj=None):
return False
def has_delete_permission(self, request, obj=None):
return False**
回答by tamarabyte
You can make the entire inline readonly by adding:
您可以通过添加以下内容使整个内联只读：
class UnitsInline(admin.TabularInline):
def has_change_permission(self, request, obj=None):
return False
This will prevent anyone from editing the entry from the admin.
这将阻止任何人编辑来自管理员的条目。
Another example that prevents, adding, deletion and displays all the inline fields as readonly:
另一个防止、添加、删除和将所有内联字段显示为只读的示例：
class ReadOnlyInline(admin.TabularInline):
def has_change_permission(self, request, obj=None):
return False
def has_add_permission(self, request, obj=None):
return False
def has_delete_permission(self, request, obj=None):
return False
def get_readonly_fields(self, request, obj=None):
return list(super().get_fields(request, obj))
