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nguoicovan
Android Development Techdegree Student 4,071 Points[Customizing django admin] SimpleListFilter Error!
Create the queryset method. Remember that this method takes in self, request, and queryset as arguments. In the method, check to see if self.value() returns anything. If it does, .filter() the queryset for records where the title contains the value. Use contains for the comparison.
=> I don't Know why it's Error!.
This is my error:
**Bummer! The queryset() method needs to call filter() on its 'queryset' argument.**
Please help me?
from django.contrib import admin
from . import models
class TextInline(admin.StackedInline):
model = models.Text
class QuizInline(admin.StackedInline):
model = models.Quiz
class AnswerInline(admin.StackedInline):
model = models.Answer
class TopicListFilter(admin.SimpleListFilter):
title = 'topic'
parameter_name = 'topic'
def lookups(self, request, model_admin):
return (
('Python', 'Python'),
('Ruby', 'Ruby'),
('Java', 'Java')
)
def queryset(self, request, queryset):
if self.value()=='Python':
return queryset.filter(title__icontains='Python')
if self.value()=='Ruby':
return queryset.filter(title__icontains='Ruby')
if self.value()=='Java':
return queryset.filter(title__icontains='Java')
class CourseAdmin(admin.ModelAdmin):
inlines = [TextInline, QuizInline]
list_filter = ['created_at', 'is_live', 'TopicListFilter']
admin.site.register(models.Course, CourseAdmin)
1 Answer
Julian Garcia
18,380 PointsJust need evaluate self.value() existence and filter title that contain it.
def queryset(self, request, queryset):
if self.value():
return queryset.filter(title__contains=self.value())
Hope it helps.