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@chelseatroy
Created Aug 28, 2018
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Example of Proxy Model Dependency Injection
from __future__ import unicode_literals
from django.shortcuts import render
from models import Visualization
from exceptions import IncompleteDataException
from .forms import VisualizationForm
from django.contrib.auth.decorators import login_required
VISUALIZATIONS = {
"infection_rate_visualization": InfectionRateVisualization.objects.get(pk="infection_rate_visualization"),
"friend_family_visit_visualization": FriendFamilyVisitVisualization.objects.get(pk="friend_family_visit_visualization"),
"food_request_visualization": FoodRequestVisualization.objects.get(pk="food_request_visualization")
}
@login_required
def transform(request):
name = request.GET['script']
if request.POST and request.FILES:
form = VisualizaionForm(request.POST, request.FILES)
if form.is_valid():
input_file = request.FILES['file']
image = None
try:
vizualization = VISUALIZATIONS[name]
image = vizualization.from_data(name, input_file)
except IncompleteDataException as e:
return render(request, 'visualizations/form.html', {'error': e.message()})
return render(request, 'visualizations/results.html', {'image': image})
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