python - Changing default django admin widget site wide -

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i want modify widget used models.urlfield include dropdown internal links in site (similar any-urlfield detected sitemap).

i want have every external app uses models.urlfield use custom widget , not have redefine each individual app formfield_overrides.

i looked django/contrib/admin/options.py , found 

formfield_for_dbfield_defaults = {  ...  models.textfield: {'widget': widgets.admintextareawidget},  models.urlfield: {'widget': widgets.adminurlfieldwidget},  models.integerfield: {'widget': widgets.adminintegerfieldwidget},  models.bigintegerfield: {'widget': widgets.adminbigintegerfieldwidget},  ... }

essentially change default if possible. how go changing default widget field in django admin site wide.

why not update dictionary? place code admin.py file.

from django.contrib.admin import options django.db import models django.forms import widgets  options.formfield_for_dbfield_defaults[models.urlfield] = {                                            'widget': widgets.textinput}

update: make work should place line @ top of admin.py before admin.site.register() calls. need move app such admin.py somewhere @ top of installed_apps list. change affect apps loaded after mentioned app.


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