camp/content/admin.py

from django import forms
from django.contrib import admin
from markdownx.admin import MarkdownxModelAdmin
from markdownx.widgets import AdminMarkdownxWidget

from photologue.admin import GalleryAdmin as GalleryAdminDefault
from photologue.models import Gallery

from .models import *

class FileInline(admin.StackedInline):
    extra = 0
    model = File

class LinkInline(admin.StackedInline):
    extra = 0
    model = Link


class MaxLengthAdminMarkdownxWidget(AdminMarkdownxWidget):
    def get_context(self, name, value, attrs=None):
        if name == 'teaser':
            if not attrs:
                attrs = {}
            attrs['maxlength'] = 250
        return super(MaxLengthAdminMarkdownxWidget, self).get_context(name, value, attrs)

    class Media:
        js = (
            'js/maxlength_count.js',
        )


class ContentAdmin(admin.ModelAdmin):
    save_on_top = True
    list_display = ('id', '__str__', 'datestart', 'shortname', 'type')
    list_filter = ['datestart', 'type']
    search_fields = ['title', 'body', 'header', 'shortname']
    raw_id_fields = ['photo', 'gallery']
    inlines = [FileInline, LinkInline]
    formfield_overrides = {
        models.TextField: {'widget': MaxLengthAdminMarkdownxWidget},
    }


admin.site.register(Content, ContentAdmin)