12 lines
310 B
Python
12 lines
310 B
Python
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from django.core.validators import ValidationError
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from django.utils.translation import gettext_lazy as _
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def validate_scale(value):
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try:
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int(eval(value))
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except Exception as e:
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raise ValidationError(
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_("'%s' is not a valid scale expression. (%s)") % (value, e)
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)
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