def clean(self):
"""process the form"""
source = self.data.get('source')
map_id = self.data.get('mapping')
# if source:
# src_maps = moq.multiple_mappings(fuseki_process, source)
# if len(src_maps) > 1:
# e = 'mappings already exist for this source'
# raise forms.ValidationError(e)
# worried about this, prevents updates to deprecate etc
if map_id:
qstr = metarelate.Mapping.sparql_retriever(map_id)
mapping = fuseki_process.retrieve(qstr)
if not mapping:
raise forms.ValidationError('the mapping Id is not valid')
changed = False
changes = []
change_keys = [('source','source'), ('target','target'),
('invertible','invertible'), ('status','status'),
('replaces', 'replaces'), ('comment','note'),
('next_reason', 'reason'), ('editor', 'creator'),
('valueMaps', 'valueMaps')]
for fkey, mkey in change_keys:
if self.data.get(fkey) != mapping.get(mkey, ''):
changed = True
changes.append((mkey,(self.data.get(fkey),
mapping.get(mkey, ''))))
if not changed:
raise forms.ValidationError('No update: mapping not changed')
else:
print 'changes:', changes
return self.cleaned_data
def __init__(self, *args, **kwargs):
fformat = kwargs.pop('fformat')
super(Mediator, self).__init__(*args, **kwargs)
qstr = metocean.Mediator.sparql_retriever(fformat)
meds = fuseki_process.retrieve(qstr)
if isinstance(meds, list):
meds = [(med['mediator'], med['label']) for med in meds]
else:
meds = [(meds['mediator'], meds['label'])]
self.fields['mediator'].choices = meds
