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

128 lines
4.2 KiB
Python

from django.shortcuts import redirect
from django.views.generic import TemplateView, DetailView
from django.contrib.auth.mixins import LoginRequiredMixin
from django.core.paginator import Paginator
from django.db.models import ProtectedError
from django.db.models import Q
from ..forms import *
from ..models import Package
from .generic_views import BaseTemplateMixin
class PackageView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
template_name = 'parts/packages.html'
base_title = 'Packages'
navbar_selected = 'Packages'
default_page_size = 25
def search_packages(self, search):
qs = Package.objects.all()
if not search:
return qs
search_fragments = search.strip().split()
for search in search_fragments:
if search.lower() == 'smd':
s_filter = Q(name__icontains = search) | Q(smd = True)
else:
try:
pin_count = int(search)
s_filter = Q(name__icontains = search) | Q(pin_count=pin_count)
except:
s_filter = Q(name__icontains = search)
qs = qs.filter(s_filter)
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)
package_queryset = self.search_packages(search_string)
paginator = Paginator(package_queryset, self.default_page_size)
context['search_string'] = search_string
context['packages'] = paginator.get_page(page_num)
context['new_pkg_form'] = PackageForm()
return context
def handle_add_new_package(self, request):
form = PackageForm(data=request.POST, files=request.FILES)
if form.is_valid():
form.save()
context = self.get_context_data()
if not form.is_valid():
context['new_pkg_form'] = form
return self.render_to_response(context)
def post(self, request, *args, **kwargs):
if 'submit-pkg-add-new' in request.POST:
return self.handle_add_new_package(request)
return super().post(request, *args, **kwargs)
class PackageDetailView(LoginRequiredMixin, BaseTemplateMixin, DetailView):
template_name = 'parts/packages-detail.html'
model = Package
pk_url_kwarg = 'uuid'
base_title = ''
navbar_selected = 'Packages'
def get_context_data(self, **kwargs):
self.base_title = 'Package / '+self.object.name
context = super().get_context_data(**kwargs)
context['package'] = self.object
context['edit_form'] = PackageForm(instance=self.object)
return context
def handle_delete_package(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 package. It is referenced by a component.'
protected_objects = pe.protected_objects
except:
delete_error = 'Cannot delete this package. 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-packages')
def edit_package(self, request):
edit_form = PackageForm(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-pkg-delete' in request.POST:
return self.handle_delete_package(request)
elif 'submit-pkg-edit' in request.POST:
return self.edit_package(request)
return super().post(request, *args, **kwargs)