website/conservancy/usethesource/admin.py

from django.contrib import admin

from .emails import make_candidate_email
from .models import Candidate, Comment


class CommentInline(admin.TabularInline):
    model = Comment
    fields = ['user', 'message']
    extra = 0


@admin.register(Candidate)
class CandidateAdmin(admin.ModelAdmin):
    list_display = ['name', 'vendor', 'device', 'release_date', 'ordering']
    list_editable = ['ordering']
    fields = [
        'name',
        'slug',
        'vendor',
        'device',
        'release_date',
        'source_url',
        'binary_url',
        'description',
    ]
    inlines = [CommentInline]
    prepopulated_fields = {'slug': ['name']}
    view_on_site = True

    def save_model(self, request, obj, form, change):
        send_email = obj.id is None
        super().save_model(request, obj, form, change)
        if send_email:
            # Announce the new candidate
            email = make_candidate_email(obj, request.user)
            email.send()