I have a simple Employee
model that includes firstname
, lastname
and middlename
fields.
On the admin side and likely elsewhere, I would like to display that as:
lastname, firstname middlename
To me the logical place to do this is in the model by creating a calculated field as such:
from django.db import models
from django.contrib import admin
class Employee(models.Model):
lastname = models.CharField("Last", max_length=64)
firstname = models.CharField("First", max_length=64)
middlename = models.CharField("Middle", max_length=64)
clocknumber = models.CharField(max_length=16)
name = ''.join(
[lastname.value_to_string(),
',',
firstname.value_to_string(),
' ',
middlename.value_to_string()])
class Meta:
ordering = ['lastname','firstname', 'middlename']
class EmployeeAdmin(admin.ModelAdmin):
list_display = ('clocknumber','name')
fieldsets = [("Name", {"fields":(("lastname", "firstname", "middlename"), "clocknumber")}),
]
admin.site.register(Employee, EmployeeAdmin)
Ultimately what I think I need is to get the value of the name fields as strings. The error I am getting is value_to_string() takes exactly 2 arguments (1 given)
. Value to string wants self, obj
. I am not sure what obj
means.
There must be an easy way to do this, I am sure I am not the first to want to do this.
Edit: Below is my code modified to Daniel's answer. The error I get is:
django.core.exceptions.ImproperlyConfigured: EmployeeAdmin.list_display[1], 'name' is not a callable or an attribute of 'EmployeeAdmin' of found in the model 'Employee'.
from django.db import models
from django.contrib import admin
class Employee(models.Model):
lastname = models.CharField("Last", max_length=64)
firstname = models.CharField("First", max_length=64)
middlename = models.CharField("Middle", max_length=64)
clocknumber = models.CharField(max_length=16)
@property
def name(self):
return ''.join(
[self.lastname,' ,', self.firstname, ' ', self.middlename])
class Meta:
ordering = ['lastname','firstname', 'middlename']
class EmployeeAdmin(admin.ModelAdmin):
list_display = ('clocknumber','name')
fieldsets = [("Name", {"fields":(("lastname", "firstname", "middlename"), "clocknumber")}),
]
admin.site.register(Employee, EmployeeAdmin)