64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
from __future__ import unicode_literals
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import yaml
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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.translation import ugettext_lazy as _
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from mayan.apps.common.serialization import yaml_load
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from .models import LayerTransformation
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from .transformations import BaseTransformation
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class LayerTransformationSelectForm(forms.Form):
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def __init__(self, *args, **kwargs):
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layer = kwargs.pop('layer')
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super(LayerTransformationSelectForm, self).__init__(*args, **kwargs)
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self.fields[
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'transformation'
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].choices = BaseTransformation.get_transformation_choices(layer=layer)
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transformation = forms.ChoiceField(
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choices=(), help_text=_('Available transformations for this layer.'),
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label=_('Transformation'),
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)
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class LayerTransformationForm(forms.ModelForm):
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class Meta:
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fields = ('arguments', 'order')
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model = LayerTransformation
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def __init__(self, *args, **kwargs):
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transformation_name = kwargs.pop('transformation_name', None)
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super(LayerTransformationForm, self).__init__(*args, **kwargs)
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if not transformation_name:
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# Get the template name when the transformation is being edited.
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template_name = getattr(
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self.instance.get_transformation_class(), 'template_name',
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None
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)
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else:
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# Get the template name when the transformation is being created
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template_name = getattr(
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BaseTransformation.get(name=transformation_name),
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'template_name', None
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)
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if template_name:
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self.fields['arguments'].widget.attrs['class'] = 'hidden'
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self.fields['order'].widget.attrs['class'] = 'hidden'
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def clean(self):
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try:
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yaml_load(stream=self.cleaned_data['arguments'])
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except yaml.YAMLError:
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raise ValidationError(
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_(
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'"%s" not a valid entry.'
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) % self.cleaned_data['arguments']
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)
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