<snipped Andres examples>
Thanks Andres,
quite interesting. The way i solved it was based on parts of the wiki
and loads of trial and error.
I made a class that simplifies using custom Manipulators and then
derived a specific class for adding a Patient (model i'm using) where i
initialise the derived class by calling the init function of the
standard add manipulator.
Apparently a class variable default is initialised then and then you can
adjust the values you like.
It's quite elegant and seems a bit clearer (to me that is, eye of the
beholder eh :)).
urls.py
=======
...
(r'^patient/ophalen/(?P<opnamenr>[-\w]+)/$','gema.main.views.patient_ophalen'),
...
views.py
========
from gema.main.patient import PatientAddManipulator
...
def patient_ophalen(request, opnamenr):
manipulator = PatientAddManipulator() # Create the manipulator
patient = manipulator.process(request) # Process the request
if ( patient != None ):
return render_to_response('main/patient_form.html', {'form':
manipulator.form})
else: # Otherwise, redirect to the patient view page.
return HttpResponseRedirect("/patient/lijst/")
..
patient.py
==========
from gema.main.models import Patient
from django import forms
### Custom Manipulator ###
class PatientCustom:
def __bool__(self):
return self.done
def get_data(self, request):
return request.POST
def get_form(self, data, errors):
return forms.FormWrapper(self, data, errors)
def process(self, request):
data = self.get_data(request)
if data:
new_data = data.copy()
errors = self.get_validation_errors(new_data)
if not errors:
self.do_html2python(new_data)
self.done = True
return self.complete(request, new_data)
else:
errors = {}
new_data = self.default
self.form = self.get_form(new_data, errors)
return self.form
def complete(self, request, data):
self.save(data)
return None
class PatientAddManipulator(Patient.AddManipulator, PatientCustom):
default = {}
done = False
def __init__(self):
# Construct the fields and set the values in default
Patient.AddManipulator.__init__(self)
PatientAddManipulator.default["voornaam"]="T"
The patient_form.html contains a form with the correct fields and a
piece of javascript to direct the user to the
patient/ophalen/(?P<opnamenr> url. I used a piece of javascript to also
add the number <opnamenr>.
==========================
The last line of PatientAddManipulator is where the "magic" is for
adding a default value.
Here i override the firstname and just put in the letter T (ok silly but
that's just to test things out :)).
I have no idea if this is a good way of doing it but it works and it
looks clean so i'm going with that :)
Regards,
Benedict
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