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factory.py
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# This factory is not the same as the others, and doesn't use
# django-factories but it mimics their functionality...
from xform_manager.models import XForm, Instance
import os
from datetime import datetime, timedelta
from pyxform import *
from pyxform.builder import create_survey_element_from_dict
XFORM_TIME_FORMAT = "%Y-%m-%dT%H:%M:%S.000"
ONE_HOUR = timedelta(0, 3600)
def _load_registration_survey_object():
"""
Loads a registration survey with all the values necessary
to register a surveyor.
"""
survey = Survey(name=u"registration")
survey.add_child(create_survey_element_from_dict({
u'type':u'text',u'name':u'name', u'label':u'Name'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'start time',
u'name': u'start'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'end time',
u'name': u'end'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'imei',
u'name': u'device_id'
}))
return survey
def _load_simple_survey_object():
"""
Returns a "watersimple" survey object,
complete with questions.
"""
survey = Survey(name=u"WaterSimple")
survey.add_child(create_survey_element_from_dict({
u'hint': {u'English':u'What is this point named?'},
u'label': {u'English':u'Water Point Name'},
u'type': u'text',
u'name': u'name'
}))
survey.add_child(create_survey_element_from_dict({
u'hint': {u'English':u'How many people use this every month?'},
u'label': {u'English':u'Monthly Usage'},
u'name': u'users_per_month',
u'type': u'integer'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'gps',
u'name': u'geopoint',
u'label': {u'English':u'Location'}
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'imei',
u'name': u'device_id'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'start time',
u'name': u'start'
}))
survey.add_child(create_survey_element_from_dict({
u'type': u'end time',
u'name': u'end'
}))
return survey
class XFormManagerFactory(object):
def create_registration_xform(self):
"""
Calls 'get_registration_xform', saves the result, and returns.
"""
xf = self.get_registration_xform()
xf.save()
return xf
def get_registration_xform(self):
"""
Gets a registration xform. (currently loaded in from fixture)
Returns it without saving.
"""
reg_xform = _load_registration_survey_object()
return XForm(xml=reg_xform.to_xml())
def create_registration_instance(self, custom_values={}):
i = self.get_registration_instance(custom_values)
i.save()
return i
def get_registration_instance(self, custom_values={}):
"""
1. Checks to see if the registration form has been created alread. If not, it loads it in.
2. Loads a registration instance.
"""
registration_xforms = XForm.objects.filter(title=u"registration")
if registration_xforms.count() == 0:
xf = self.create_registration_xform()
else:
xf = registration_xforms[0]
values = {
u'device_id': u'12345',
u'start': u'2011-01-01T09:50:06.966',
u'end': u'2011-01-01T09:53:22.965'
}
if u'start' in custom_values:
st = custom_values[u'start']
custom_values[u'start'] = st.strftime(XFORM_TIME_FORMAT)
#if no end_time is specified, defaults to 1 hour
values[u'end'] = (st+ONE_HOUR).strftime(XFORM_TIME_FORMAT)
if u'end' in custom_values:
custom_values[u'end'] = custom_values[u'end'].strftime(XFORM_TIME_FORMAT)
values.update(custom_values)
reg_xform = _load_registration_survey_object()
reg_instance = reg_xform.instantiate()
reg_instance._id = xf.id_string
for k, v in values.items():
reg_instance.answer(name=k, value=v)
instance_xml = reg_instance.to_xml()
return Instance(xml=instance_xml)
def create_simple_xform(self):
xf = self.get_simple_xform()
xf.save()
return xf
def get_simple_xform(self):
survey_object = _load_simple_survey_object()
return XForm(xml=survey_object.to_xml())
def create_simple_instance(self, custom_values={}):
i = self.get_simple_instance(custom_values)
i.save()
return i
def get_simple_instance(self, custom_values={}):
simple_xforms = XForm.objects.filter(title=u"WaterSimple")
if simple_xforms.count() == 0:
xf = self.create_simple_xform()
else:
xf = simple_xforms[0]
#these values can be overridden with custom values
values = {
u'device_id': u'12345',
u'start': u'2011-01-01T09:50:06.966',
u'end': u'2011-01-01T09:53:22.965',
u'geopoint': u'40.783594633609184 -73.96436698913574 300.0 4.0'
}
if u'start' in custom_values:
st = custom_values[u'start']
custom_values[u'start'] = st.strftime(XFORM_TIME_FORMAT)
#if no end_time is specified, defaults to 1 hour
values[u'end'] = (st+ONE_HOUR).strftime(XFORM_TIME_FORMAT)
if u'end' in custom_values:
custom_values[u'end'] = custom_values[u'end'].strftime(XFORM_TIME_FORMAT)
values.update(custom_values)
water_simple_survey = _load_simple_survey_object()
simple_survey = water_simple_survey.instantiate()
for k, v in values.items():
simple_survey.answer(name=k, value=v)
#setting the id_string so that it doesn't end up
#with the timestamp of the new survey object
simple_survey._id = xf.id_string
instance_xml = simple_survey.to_xml()
return Instance(xml=instance_xml)