export_action assumes 'id' field in model

[dnc-msimons]

• Django Export Action version: 0.1.1
• Django version: 1.10
• Python version: 2.7.10
• Operating System: macOS Sierra 10.12.5

Description

Navigating to the admin page for a model that includes 'id' column and choosing 'export selected' action proceeds to field selection dialog. However, attempting to export on a model that has a primary_key=True field with a name other than 'id' errors out on export.

What I Did

model:
class Computer(models.Model):
    comp_id = models.AutoField(db_column='CompId', primary_key=True)
    name = models.CharField(db_column='CompName', max_length=50)
    domain = models.CharField(db_column='Domain', max_length=10, choices=DOMAIN_CHOICES, null=True)
    infrastructure = models.CharField(db_column='Infrastructure', max_length=10,
                                      choices=INFRASTRUCTURE_CHOICES, blank=True, null=True)
    site = models.ForeignKey(DNUnits, db_column='site_id', related_name='computer_site', blank=True, null=True)
    machine_type = models.CharField(db_column='MachineType', max_length=1,
                                    choices=MACHINE_TYPE_CHOICES, blank=True, null=True)
    OS = models.CharField(db_column='OS', max_length=50, blank=True, null=True)
    CPU_count = models.IntegerField(db_column='CPUCount', blank=True, null=True)

    class Meta:
        unique_together = ('name', 'domain',)
        ordering = ('name',)

    def __unicode__(self):
        return self.name + '.' + get_display(self.domain, DOMAIN_CHOICES)

Traceback:
Traceback (most recent call last):
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/core/handlers/exception.py", line 39, in inner
    response = get_response(request)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response
    response = self._get_response(request)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/contrib/admin/options.py", line 544, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/contrib/admin/sites.py", line 211, in inner
    return view(request, *args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/utils/decorators.py", line 67, in _wrapper
    return bound_func(*args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/utils/decorators.py", line 63, in bound_func
    return func.__get__(self, type(self))(*args2, **kwargs2)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1569, in changelist_view
    response = self.response_action(request, queryset=cl.get_queryset(request))
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1305, in response_action
    response = func(self, request, queryset)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/export_action/admin.py", line 10, in export_selected_objects
    selected = list(queryset.values_list('id', flat=True))
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/db/models/query.py", line 729, in values_list
    clone = self._values(*fields)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/db/models/query.py", line 712, in _values
    query.add_fields(field_names, True)
  File "/Users/msimons/Code/dn-sql-catalog/venv/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1644, in add_fields
    "Choices are: %s" % (name, ", ".join(names)))
FieldError: Cannot resolve keyword 'id' into field. Choices are: CPU_count, OS, comp_id, domain, infrastructure, instance, machine_type, name, site, site_id
[28/Aug/2017 19:37:59] "POST /admin/dn_sql_catalog/computer/ HTTP/1.1" 500 129966