id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
33927	Rendering a read-only ArrayField with choices crashes.	David Svenson	David Wobrock	"If an ''ArrayField'' is included in an ''admin.ModelAdmin'' and ''has_change_permission'' returns ''False'' (making the field read-only), an exception is thrown when the field is supposed to be rendered.

This is the stacktrace after Django tries to render the field in ''django/contrib/admin/templates/admin/includes/fieldset.html''

{{{
Traceback (most recent call last):
  File "".venv/lib/python3.10/site-packages/django/core/handlers/exception.py"", line 47, in inner
    response = get_response(request)
  File "".venv/lib/python3.10/site-packages/django/core/handlers/base.py"", line 204, in _get_response
    response = response.render()
  File "".venv/lib/python3.10/site-packages/django/template/response.py"", line 105, in render
    self.content = self.rendered_content
  File "".venv/lib/python3.10/site-packages/django/template/response.py"", line 83, in rendered_content
    return template.render(context, self._request)
  File "".venv/lib/python3.10/site-packages/django/template/backends/django.py"", line 61, in render
    return self.template.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 170, in render
    return self._render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 162, in _render
    return self.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/loader_tags.py"", line 150, in render
    return compiled_parent._render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 162, in _render
    return self.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/loader_tags.py"", line 150, in render
    return compiled_parent._render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 162, in _render
    return self.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/loader_tags.py"", line 62, in render
    result = block.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/loader_tags.py"", line 62, in render
    result = block.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/defaulttags.py"", line 214, in render
    nodelist.append(node.render_annotated(context))
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/loader_tags.py"", line 195, in render
    return template.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 172, in render
    return self._render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 162, in _render
    return self.nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/defaulttags.py"", line 214, in render
    nodelist.append(node.render_annotated(context))
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/defaulttags.py"", line 214, in render
    nodelist.append(node.render_annotated(context))
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/defaulttags.py"", line 315, in render
    return nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/defaulttags.py"", line 315, in render
    return nodelist.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 938, in render
    bit = node.render_annotated(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 905, in render_annotated
    return self.render(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 988, in render
    output = self.filter_expression.resolve(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 671, in resolve
    obj = self.var.resolve(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 796, in resolve
    value = self._resolve_lookup(context)
  File "".venv/lib/python3.10/site-packages/django/template/base.py"", line 858, in _resolve_lookup
    current = current()
  File "".venv/lib/python3.10/site-packages/django/contrib/admin/helpers.py"", line 239, in contents
    result_repr = display_for_field(value, f, self.empty_value_display)
  File "".venv/lib/python3.10/site-packages/django/contrib/admin/utils.py"", line 385, in display_for_field
    return dict(field.flatchoices).get(value, empty_value_display)

Exception Type: TypeError at /admin/companies/company/1/change/
Exception Value: unhashable type: 'list'
}}}

I haven't given much thought to how to solve this but I guess either ''contents'' or ''display_for_field'' has to handle the ArrayField or there should be some way to call ''get_FOO_display'' in this case."	Bug	closed	contrib.admin	3.2	Normal	fixed		David Wobrock	Ready for checkin	1	0	0	0	0	0