28 lines
802 B
Python
28 lines
802 B
Python
import json
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import django.contrib.postgres.forms as postgres
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from django import forms
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from django.core.exceptions import ValidationError
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from django.utils import formats
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from django.utils.translation import gettext_lazy as _
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from markdownx.fields import MarkdownxFormField
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class PreviewImageInput(forms.FileInput):
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template_name = "widgets/image.html"
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def format_value(self, value):
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"""
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Return the file object if it has a defined url attribute.
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"""
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if self.is_initial(value):
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if value.url:
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return value.url
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else:
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return
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def is_initial(self, value):
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"""
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Return whether value is considered to be initial value.
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"""
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return bool(value and getattr(value, "url", False))
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