Django admin widget

from django.contrib.admin.widgets import AdminFileWidget
from django.utils.html import mark_safe

from .utils import wrap_field_html

__all__ = (
    'AdminImageWidget'
)


class AdminImageWidget(AdminFileWidget):
    def render(self, name, value, attrs=None, renderer=None):
        output = []
        if value and getattr(value, "url", None):
            image_url = value.url
            file_name=str(value)
            output.append(f'''
                <a href="{image_url}" target="_blank">
                    <img src="{image_url}" alt="{file_name}" style="display: block; max-width: 150px; max-height: 150px;"/>
                </a>
            ''')
        output.append(super().render(name, value, attrs, renderer))
        return mark_safe(wrap_field_html(''.join(output)))