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Wednesday, October 19, 2022

[FIXED] How to add readonly inline on django admin

 October 19, 2022     admin, django, python     No comments   

Issue

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:

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?


Solution

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_fields and found the name of the middle table and added it to readonly_fields, setting can_delete to 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.



Answered By - Hassek
Answer Checked By - Marilyn (PHPFixing Volunteer)
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