django admin中不断增加的对象列表

我有一个为slider上传图像并将这些图像与一些文章绑定的模型

class SliderImages(models.Model):
    class Meta():
        db_table = 'slider'
    image_1 = models.ImageField()
    image_2 = models.ImageField()
    image_3 = models.ImageField()
    article_1 = models.ForeignKey(Article, related_name='+')
    article_2 = models.ForeignKey(Article, related_name='+')
    article_3 = models.ForeignKey(Article, related_name='+')

然后在admin.py中我写：

class SliderImagesAdmin(admin.ModelAdmin):
    fieldsets = (
        (None, {
            'fields': (('image_1', 'article_1'),
                                  ('image_2', 'article_2'),
                                  ('image_3', 'article_3'),)
        }),
    )
admin.site.register(SliderImages, SliderImagesAdmin)

它工作得很好，很好。但是图片文章的数量是有限的。我想管理员决定图片文章的数量只是添加新的。 我认为新模型应该是这样的：

class SliderImages(models.Model):
    class Meta():
        db_table = 'slider'
    image = models.ImageField()
    article = models.ForeignKey(Article, related_name='+')

我想我应该使用内联线，但不知道如何使用models.py

管理员

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请参阅“字段列表”更新答案中的“标题”和“错误未知列”滑块。标题。需要将ugettext_lazy作为ufor models.py1054，uUnknown列“slider.title”导入“字段列表”中，您是“syncdb”还是“migrate”？

from django.utils.translation import ugettext_lazy as _

class Slider(models.Model):
    title = models.CharField(_('title'), max_length=255, null=True, blank=True)

    class Meta():
        db_table = 'slider'


class SliderItems(models.Model):
    slider = models.ForeignKey(Slider, related_name='slider_items')
    image = models.ImageField()
    article = models.ForeignKey(Article, related_name='+')

from django.contrib import admin
from .models import Slider, SliderItems


class SliderItemsInline(admin.TabularInline):
    model = SliderItems

class SliderAdmin(admin.ModelAdmin):
    inlines = [
        SliderItemsInline,
    ]


admin.site.register(Slider, SliderAdmin)