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29 lines
1.1 KiB
Python
29 lines
1.1 KiB
Python
from django.forms import ImageField
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from ..specs import SpecHost
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from ..utils import generate
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class ProcessedImageField(ImageField, SpecHost):
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def __init__(self, processors=None, format=None, options=None,
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autoconvert=True, spec_id=None, spec=None, *args, **kwargs):
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if spec_id is None:
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# Unlike model fields, form fields are never told their field name.
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# (Model fields are done so via `contribute_to_class()`.) Therefore
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# we can't really generate a good spec id automatically.
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raise TypeError('You must provide a spec_id')
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SpecHost.__init__(self, processors=processors, format=format,
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options=options, autoconvert=autoconvert, spec=spec,
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spec_id=spec_id)
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super(ProcessedImageField, self).__init__(*args, **kwargs)
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def clean(self, data, initial=None):
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data = super(ProcessedImageField, self).clean(data, initial)
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if data:
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spec = self.get_spec(source=data)
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data = generate(spec)
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return data
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