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import os
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from django import forms
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from apps.main.models import Device, Experiment
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from .models import JARSConfiguration, JARSFilter
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from .widgets import SpectralWidget
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from apps.main.forms import add_empty_choice
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def create_choices_from_model(model, filter_id=None):
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#instance = globals()[model]
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choices = model.objects.all().values_list('pk', 'name')
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choices = add_empty_choice(choices)
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return choices
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class JARSConfigurationForm(forms.ModelForm):
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def __init__(self, *args, **kwargs):
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super(JARSConfigurationForm, self).__init__(*args, **kwargs)
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instance = getattr(self, 'instance', None)
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if instance and instance.pk:
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devices = Device.objects.filter(device_type__name='jars')
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self.fields['device'].widget.choices = [(device.id, device) for device in devices]
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self.fields['spectral_number'].widget.attrs['readonly'] = True
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self.fields['spectral'].widget = SpectralWidget()
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class Meta:
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model = JARSConfiguration
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exclude = ('type', 'parameters', 'status', 'filter_parms', 'author', 'hash', 'filter')
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class JARSFilterForm(forms.ModelForm):
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def __init__(self, *args, **kwargs):
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super(JARSFilterForm, self).__init__(*args, **kwargs)
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instance = getattr(self, 'instance', None)
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self.fields['f_decimal'].widget.attrs['readonly'] = True
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if 'initial' in kwargs:
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self.fields['filter_template'] = forms.ChoiceField(
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choices=create_choices_from_model(JARSFilter),
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initial = kwargs['initial']['id']
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)
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# self.fields['name'].initial = kwargs['initial']['id']
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# filter_id = kwargs['initial']['filter_id']
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# if filter_id == 0:
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# for value in self.fields:
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# if value != 'name':
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# self.fields.pop(value)
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# self.fields['name'].label = "Filter Template Name"
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# else:
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# self.fields['name'] = forms.ChoiceField(choices=create_choices_from_model(JARSFilter, kwargs['initial']['filter_id']))
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# jars_filter = JARSFilter.objects.get(pk=kwargs['initial']['filter_id'])
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# labels = [f.name for f in jars_filter._meta.get_fields()]
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# for label in ['id']:
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# labels.remove(label)
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# for label in labels:
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# self.fields['name'].initial = kwargs['initial']['filter_id']
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# self.fields[label].initial = getattr(jars_filter,label)
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# self.fields['name'].label = "Filter Template Name"
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class Meta:
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model = JARSFilter
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exclude = ('name', )
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class ExtFileField(forms.FileField):
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"""
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Same as forms.FileField, but you can specify a file extension whitelist.
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>>> from django.core.files.uploadedfile import SimpleUploadedFile
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>>>
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>>> t = ExtFileField(ext_whitelist=(".pdf", ".txt"))
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>>>
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>>> t.clean(SimpleUploadedFile('filename.pdf', 'Some File Content'))
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>>> t.clean(SimpleUploadedFile('filename.txt', 'Some File Content'))
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>>>
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>>> t.clean(SimpleUploadedFile('filename.exe', 'Some File Content'))
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Traceback (most recent call last):
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...
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ValidationError: [u'Not allowed filetype!']
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"""
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def __init__(self, *args, **kwargs):
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extensions = kwargs.pop("extensions")
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self.extensions = [i.lower() for i in extensions]
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super(ExtFileField, self).__init__(*args, **kwargs)
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def clean(self, *args, **kwargs):
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data = super(ExtFileField, self).clean(*args, **kwargs)
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filename = data.name
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ext = os.path.splitext(filename)[1]
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ext = ext.lower()
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if ext not in self.extensions:
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raise forms.ValidationError('Not allowed file type: %s' % ext)
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class JARSImportForm(forms.Form):
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file_name = ExtFileField(extensions=['.racp','.json'])
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