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import os
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import json
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from django import forms
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from django.utils.safestring import mark_safe
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from apps.main.models import Device
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from apps.main.forms import add_empty_choice
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from .models import RCConfiguration, RCLine, RCLineType, RCLineCode
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def create_choices_from_model(model, conf_id):
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if model=='RCLine':
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instance = RCConfiguration.objects.get(pk=conf_id)
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choices = instance.get_refs_lines()
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else:
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instance = globals()[model]
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choices = instance.objects.all().values_list('pk', 'name')
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return add_empty_choice(choices, label='All')
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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 filetype: %s' % ext)
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class KmUnitWidget(forms.widgets.TextInput):
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def render(self, name, value, attrs=None):
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if isinstance(value, (int, float)):
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unit = int(value*attrs['line'].km2unit)
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elif isinstance(value, basestring):
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units = []
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values = [s for s in value.split(',') if s]
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for val in values:
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units.append('{0:.0f}'.format(float(val)*attrs['line'].km2unit))
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unit = ','.join(units)
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html = '<div class="col-md-4"><input disabled type="text" class="form-control" id="id_{0}" value="{1}"></div><div class="col-md-1">Km</div><div class="col-md-4"><input disabled type="text" class="form-control" value="{2}"></div><div class="col-md-1">Units</div>'.format(name, value, unit)
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return mark_safe(html)
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class DefaultWidget(forms.widgets.TextInput):
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def render(self, name, value, attrs=None):
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html = '<div class="col-md-4"><input disabled type="text" class="form-control" id="id_{0}" value="{1}"></div>'.format(name, value)
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return mark_safe(html)
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class RCConfigurationForm(forms.ModelForm):
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def __init__(self, *args, **kwargs):
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super(RCConfigurationForm, 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='rc')
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self.fields['experiment'].widget.attrs['readonly'] = True
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self.fields['experiment'].widget.choices = [(instance.experiment.id, instance.experiment)]
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self.fields['device'].widget.choices = [(device.id, device) for device in devices]
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class Meta:
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model = RCConfiguration
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exclude = ('type', 'parameters', 'status')
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class RCLineForm(forms.ModelForm):
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def __init__(self, *args, **kwargs):
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self.extra_fields = kwargs.pop('extra_fields', [])
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super(RCLineForm, self).__init__(*args, **kwargs)
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if 'initial'in kwargs:
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for item in self.extra_fields:
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if item['name']=='params':
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continue
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if 'model' in item:
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self.fields[item['name']] = forms.ChoiceField(choices=create_choices_from_model(item['model'],
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kwargs['initial']['rc_configuration']))
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else:
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self.fields[item['name']] = forms.CharField(initial=item['value'])
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class Meta:
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model = RCLine
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fields = ('rc_configuration', 'line_type', 'channel')
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widgets = {
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'channel': forms.HiddenInput(),
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}
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def save(self):
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line = super(RCLineForm, self).save()
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#auto add channel
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line.channel = RCLine.objects.filter(rc_configuration=line.rc_configuration).count()-1
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#auto add position for TX, TR & CODE
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if line.line_type.name in ('tx', ):
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line.position = RCLine.objects.filter(rc_configuration=line.rc_configuration, line_type=line.line_type).count()-1
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#save extra fields in params
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params = {}
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for item in self.extra_fields:
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if item['name']=='params':
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params['params'] = []
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else:
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params[item['name']] = self.data[item['name']]
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line.params = json.dumps(params)
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line.save()
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return
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class RCLineViewForm(forms.Form):
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def __init__(self, *args, **kwargs):
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extra_fields = kwargs.pop('extra_fields')
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line = kwargs.pop('line')
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subform = kwargs.pop('subform', False)
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super(RCLineViewForm, self).__init__(*args, **kwargs)
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print line
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for label, value in extra_fields.items():
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if label=='params':
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continue
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if 'ref' in label:
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if value in (0, '0'):
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value = 'All'
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else:
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value = RCLine.objects.get(pk=value).get_name()
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elif 'code' in label:
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value = RCLineCode.objects.get(pk=value).name
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self.fields[label] = forms.CharField(initial=value)
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if subform:
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params = json.loads(line.line_type.params)['params']
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else:
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params = json.loads(line.line_type.params)
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if 'widget' in params[label]:
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if params[label]['widget']=='km':
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self.fields[label].widget = KmUnitWidget(attrs={'line':line})
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else:
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self.fields[label].widget = DefaultWidget()
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class RCLineEditForm(forms.ModelForm):
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def __init__(self, *args, **kwargs):
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self.extra_fields = kwargs.pop('extra_fields', [])
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super(RCLineEditForm, self).__init__(*args, **kwargs)
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if 'initial'in kwargs:
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for item, values in self.extra_fields.items():
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if item=='params':
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continue
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if 'help' in values:
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help_text = values['help']
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else:
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help_text = ''
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if 'model' in values:
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self.fields[item] = forms.ChoiceField(choices=create_choices_from_model(values['model'], kwargs['initial']['rc_configuration']),
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initial=values['value'],
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widget=forms.Select(attrs={'name':'%s|%s' % (kwargs['initial']['line'], item)}),
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help_text=help_text)
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else:
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self.fields[item] = forms.CharField(initial=values['value'],
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widget=forms.TextInput(attrs={'name':'%s|%s' % (kwargs['initial']['line'], item)}),
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help_text=help_text)
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class Meta:
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model = RCLine
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exclude = ('rc_configuration', 'line_type', 'channel', 'position', 'params', 'pulses')
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class RCSubLineEditForm(forms.Form):
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def __init__(self, *args, **kwargs):
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extra_fields = kwargs.pop('extra_fields')
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count = kwargs.pop('count')
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line = kwargs.pop('line')
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super(RCSubLineEditForm, self).__init__(*args, **kwargs)
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for label, value in extra_fields.items():
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self.fields[label] = forms.CharField(initial=value,
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widget=forms.TextInput(attrs={'name':'%s|%s|%s' % (count, line, label)}))
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class RCImportForm(forms.Form):
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file_name = ExtFileField(extensions=['.racp', '.json', '.dat'])
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