<commit_before>from django.template import Library
from ..models import Metadata


register = Library()


@register.assignment_tag
def get_metadata_for(obj):
    try:
        return Metadata.objects.get_for_content_object(obj)
    except Metadata.DoesNotExist:
        return None<commit_msg>Fix add form view for models with metadata<commit_after>from django.db.models import Model
from django.template import Library

from ..models import Metadata


register = Library()


@register.assignment_tag
def get_metadata_for(obj):
    if not isinstance(obj, Model):
        return None
    try:
        return Metadata.objects.get_for_content_object(obj)
    except Metadata.DoesNotExist:
        return None
{'fraction_non_alphanumeric': 0.06818181818181818, 'fraction_numerical': 0.0, 'mean_word_length': 3.93006993006993, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1987732', 'n_tokens_mistral': 202, 'n_tokens_neox': 197, 'n_words': 56}