shimatta-kenkyusho/shimatta_kenkyusho/parts/views/distributor_views.py

122 lines
4.0 KiB
Python

import uuid
from django.shortcuts import redirect
from django.views.generic import TemplateView, DetailView
from django.contrib.auth.mixins import LoginRequiredMixin
from ..models import Distributor
from django.core.paginator import Paginator
from django.db.models import ProtectedError
from ..forms import *
from django.db.models import Q
from .generic_views import BaseTemplateMixin
class DistributorView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
template_name = 'parts/distributors.html'
base_title = 'Distributors'
navbar_selected = 'Distributors'
default_page_size = 25
def search_distributors(self, search):
qs = Distributor.objects.all()
if not search:
return qs
search_fragments = search.strip().split()
for search in search_fragments:
qs = qs.filter(Q(name__icontains = search) | Q(website__icontains = search))
return qs
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
page_num = self.request.GET.get('page', default=1)
search_string = self.request.GET.get('search', default=None)
queryset = self.search_distributors(search_string)
paginator = Paginator(queryset, self.default_page_size)
context['search_string'] = search_string
context['distributors'] = paginator.get_page(page_num)
context['new_distri_form'] = DistributorForm()
return context
def handle_add_new_distributor(self, request):
form = DistributorForm(data=request.POST, files=request.FILES)
if form.is_valid():
form.save()
context = self.get_context_data()
if not form.is_valid():
context['new_distri_form'] = form
return self.render_to_response(context)
def post(self, request, *args, **kwargs):
if 'submit-distri-add-new' in request.POST:
return self.handle_add_new_distributor(request)
return super().post(request, *args, **kwargs)
class DistributorDetailView(LoginRequiredMixin, BaseTemplateMixin, DetailView):
template_name = 'parts/distributors-detail.html'
model = Distributor
pk_url_kwarg = 'uuid'
base_title = ''
navbar_selected = 'Distributors'
def get_context_data(self, **kwargs):
self.base_title = 'Distributor / '+self.object.name
context = super().get_context_data(**kwargs)
context['distributor'] = self.object
context['edit_form'] = DistributorForm(instance=self.object)
return context
def handle_delete_distributor(self, request):
delete_error = None
protected_objects = None
# Try to delete this instance
try:
self.object.delete()
except ProtectedError as pe:
delete_error = 'Cannot delete this distributor. It is referenced by a component.'
protected_objects = pe.protected_objects
except:
delete_error = 'Cannot delete this distributor. Unknown error'
if delete_error:
context = self.get_context_data()
context['delete_error'] = delete_error
context['protected_components'] = protected_objects
return self.render_to_response(context)
else:
return redirect('parts-distributors')
def edit_distributor(self, request):
edit_form = DistributorForm(data=request.POST, files=request.FILES, instance=self.object)
if edit_form.is_valid():
edit_form.save()
context = self.get_context_data()
if not edit_form.is_valid():
context['edit_form'] = edit_form
return self.render_to_response(context)
def post(self, request, *args, **kwargs):
self.object = self.get_object()
if 'submit-distri-delete' in request.POST:
return self.handle_delete_distributor(request)
elif 'submit-distri-edit' in request.POST:
return self.edit_distributor(request)
return super().post(request, *args, **kwargs)