623 lines
23 KiB
Python
623 lines
23 KiB
Python
from django.shortcuts import render, redirect
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from django.urls import resolve, reverse
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from django.contrib.auth import logout, login
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from django.contrib.auth.models import User
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from django.http import HttpResponse
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from .navbar import NavBar
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from django.contrib.auth.forms import AuthenticationForm as AuthForm
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from django.contrib.auth.forms import PasswordChangeForm
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from django.contrib.auth import update_session_auth_hash
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from django.views import View
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import django.forms as forms
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from django.views.generic import TemplateView, DetailView
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from django.contrib.auth.mixins import LoginRequiredMixin, PermissionRequiredMixin
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from .models import Storage, Stock, Component, Distributor, Manufacturer, Package, ComponentParameter, ComponentParameterType, DistributorNum
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from .qr_parser import QrCodeValidator
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from django.core.paginator import Paginator
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from django.core.exceptions import ValidationError
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from django.db import IntegrityError
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from django.db.models import ProtectedError
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from .forms import *
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from django.db.models import Q
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from django.db.models.functions import Lower
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import uuid
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class QrSearchForm(forms.Form):
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my_qr_validator = QrCodeValidator()
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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qr_search = forms.CharField(label='qr_search', validators=[my_qr_validator])
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class BaseTemplateMixin(object):
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navbar_selected = ''
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base_title = ''
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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base_context = {
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'navbar': NavBar.get_navbar(self.navbar_selected, self.request.user),
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'title': NavBar.get_brand()+' / '+ self.base_title,
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'login_active': False,
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}
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context['base'] = base_context
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return context
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def post(self, request, *args, **kwargs):
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data = request.POST
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if 'qr_search' not in data:
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super().post(request, *args, **kwargs)
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print('QR',data['qr_search'])
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f = QrSearchForm(data)
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if f.is_valid():
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return redirect(f.my_qr_validator.get_redirect_url(f.cleaned_data['qr_search']))
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return self.get(request)
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class ChangePasswordView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
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template_name = 'parts/change-pw.html'
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navbar_selected = 'Main'
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base_title = 'Change Password'
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['form'] = PasswordChangeForm(self.request.user)
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return context
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def post(self, request, *args, **kwargs):
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if 'submit-change-pw' not in request.POST:
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return super().post(request, *args, **kwargs)
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form = PasswordChangeForm(request.user, data=request.POST)
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if form.is_valid():
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user = form.save()
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update_session_auth_hash(request, user)
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return redirect('parts-main')
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else:
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pass
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context = self.get_context_data(**kwargs)
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if form.errors:
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context['form'] = form
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return self.render_to_response(context)
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class MainView(BaseTemplateMixin, TemplateView):
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template_name = 'parts/main.html'
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navbar_selected = 'Main'
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base_title = 'Main'
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def logout_view(request):
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logout(request)
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return redirect('parts-main')
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def login_view(request):
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base_context = {
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'navbar': NavBar.get_navbar('Login', request.user),
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'title': NavBar.get_brand()+' / '+'Login',
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'login_active': True,
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}
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if request.user.is_authenticated:
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next_param = request.GET.get('next')
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if next_param is not None:
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return redirect(next_param)
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else:
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return redirect('parts-main')
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if request.method == 'POST':
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form = AuthForm(data=request.POST)
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if form.is_valid():
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valid_user = form.get_user()
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login(request, valid_user)
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next_param = request.GET.get('next')
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if next_param is not None:
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return redirect(next_param)
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else:
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return redirect('parts-main')
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else:
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form = AuthForm()
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context = {
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'base': base_context,
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'form': form,
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}
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return render(request, 'parts/login.html', context)
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# Create your views here.
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class ComponentView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
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template_name = 'parts/components.html'
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base_title = 'Components'
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navbar_selected = 'Components'
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default_page_size = 25
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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comp_page_num = self.request.GET.get('comp_page', default=1)
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comp_paginator = Paginator(Component.objects.all(), self.default_page_size)
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context['components'] = comp_paginator.get_page(comp_page_num)
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return context
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class PackageView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
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template_name = 'parts/packages.html'
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base_title = 'Packages'
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navbar_selected = 'Packages'
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default_page_size = 25
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def search_packages(self, search):
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qs = Package.objects.all()
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if not search:
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return qs
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search = search.strip()
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qs = qs.filter(Q(name__contains = search))
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return qs
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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page_num = self.request.GET.get('page', default=1)
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search_string = self.request.GET.get('search', default=None)
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package_queryset = self.search_packages(search_string)
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paginator = Paginator(package_queryset, self.default_page_size)
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context['search_string'] = search_string
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context['packages'] = paginator.get_page(page_num)
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context['new_pkg_form'] = PackageForm()
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return context
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def handle_add_new_package(self, request):
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form = PackageForm(data=request.POST, files=request.FILES)
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if form.is_valid():
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form.save()
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context = self.get_context_data()
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if not form.is_valid():
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context['new_pkg_form'] = form
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return self.render_to_response(context)
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def post(self, request, *args, **kwargs):
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if 'submit-pkg-add-new' in request.POST:
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return self.handle_add_new_package(request)
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return super().post(request, *args, **kwargs)
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class StockView(LoginRequiredMixin, BaseTemplateMixin, TemplateView):
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template_name = 'parts/stocks.html'
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base_title = 'Stocks'
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navbar_selected = 'Stocks'
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default_pagination_size = 25
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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storage_page = self.request.GET.get('storage_page')
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if storage_page is None:
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storage_page = 1
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low_stock_page = self.request.GET.get('low_stock_page')
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if low_stock_page is None:
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low_stock_page = 1
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storage_paginator = Paginator(Storage.objects.filter(parent_storage=None), self.default_pagination_size)
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low_stock_paginator = Paginator(Stock.get_under_watermark(),
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self.default_pagination_size)
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context['low_stocks'] = low_stock_paginator.get_page(low_stock_page)
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context['storages'] = storage_paginator.get_page(storage_page)
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add_stor_form = AddSubStorageForm()
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add_stor_form.fields['responsible'].initial = self.request.user.username
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context['add_storage_form'] = add_stor_form
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return context
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def handle_add_storage(self, request, **kwargs):
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return_invalid_form = False
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f = AddSubStorageForm(data=request.POST)
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if f.is_valid():
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new_storage_name = f.cleaned_data['storage_name']
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try:
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resp_user = User.objects.get(username=f.cleaned_data['responsible'])
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except Exception as _:
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resp_user = None
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f.add_error('responsible', 'Invalid Responsible User')
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return_invalid_form = True
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if resp_user is not None:
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try:
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Storage.objects.create(name=new_storage_name, responsible=resp_user, parent_storage=None)
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except ValidationError as verr:
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return_invalid_form = True
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f.add_error('storage_name', ' .'.join(verr.messages))
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else:
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return_invalid_form = True
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context = self.get_context_data(**kwargs)
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if return_invalid_form:
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context['add_storage_form'] = f
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return self.render_to_response(context)
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def post(self, request, **kwargs):
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if 'submit-add-storage' in request.POST:
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return self.handle_add_storage(request, **kwargs)
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return super().post(request, **kwargs)
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class StockViewDetail(LoginRequiredMixin, BaseTemplateMixin, DetailView):
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template_name = 'parts/stocks-detail.html'
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model = Storage
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pk_url_kwarg = 'uuid'
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base_title = ''
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navbar_selected = 'Stocks'
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default_pagination_size = 8
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def get_breadcrumbs(self):
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crumbs = self.object.get_path_components()
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# Reverse list and drop the last element of the reversed list
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crumbs = crumbs[::-1][:-1]
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return crumbs
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def search_stock_queryset(self, search):
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stocks_in_storage = Stock.objects.filter(storage=self.object).order_by(Lower('component__name'))
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if search is None or search == '':
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return stocks_in_storage
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if search.startswith('[comp_uuid]'):
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search = search.replace('[comp_uuid]', '')
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# Check if the searhc equals a UUID
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test_uuid = None
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try:
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test_uuid = uuid.UUID(search)
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except:
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pass
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if test_uuid is not None:
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stocks_in_storage = stocks_in_storage.filter(Q(component__id = test_uuid) | Q(id= test_uuid))
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else:
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stocks_in_storage = stocks_in_storage.filter(Q(component__name__contains = search) |
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Q(component__package__name__contains = search) |
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Q(component__manufacturer__name__contains = search))
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return stocks_in_storage
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def get_context_data(self, **kwargs):
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self.base_title = 'Stocks / ' + self.object.name
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context = super().get_context_data(**kwargs)
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context['breadcrumbs'] = self.get_breadcrumbs()
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storage_page = self.request.GET.get('storage_page', default=1)
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storage_paginator = Paginator(Storage.objects.filter(parent_storage=self.object), self.default_pagination_size)
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stock_search_input = self.request.GET.get('search')
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componente_stock_page = self.request.GET.get('stock_page', default=1)
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stock_paginator = Paginator(self.search_stock_queryset(stock_search_input), self.default_pagination_size)
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context['storages'] = storage_paginator.get_page(storage_page)
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stocks = stock_paginator.get_page(componente_stock_page)
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context['stocks'] = stocks
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context['stock_search'] = stock_search_input
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add_storage_form = AddSubStorageForm()
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add_storage_form.fields['responsible'].initial = self.request.user.username
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context['add_storage_form'] = add_storage_form
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context['delete_storage_error'] = None
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context['add_stock_form'] = AddStockForm()
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return context
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def handle_add_storage_post(self, request, **kwargs):
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f = AddSubStorageForm(data=request.POST)
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if f.is_valid():
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sub_name = f.cleaned_data['storage_name']
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try:
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user = User.objects.get(username=f.cleaned_data['responsible'])
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try:
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Storage.objects.create(name=sub_name, parent_storage=self.object, responsible=user)
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except ValidationError as v_err:
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f.add_error('storage_name', '. '.join(v_err.messages))
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except:
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f.add_error('responsible', 'Invalid user')
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context = self.get_context_data(**kwargs)
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context['add_storage_form'] = f
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return self.render_to_response(context)
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def handle_del_storage_post(self, request, **kwargs):
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parent = self.object.parent_storage
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try:
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self.object.delete()
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except:
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context = self.get_context_data(**kwargs)
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context['delete_storage_errors'] = ['Error deleting Storage '+str(self.object)]
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return self.render_to_response(context)
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if parent is None:
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return redirect('parts-stocks')
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else:
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return redirect(reverse('parts-stocks-detail', kwargs={'uuid':parent.id}))
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def handle_del_stock_post(self, request, **kwargs):
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del_error = None
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if 'stock_uuid' in request.POST:
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f = DeleteStockForm(data=request.POST)
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if f.is_valid():
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try:
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s = Stock.objects.get(id=f.cleaned_data['stock_uuid'])
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print(s.storage)
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print(self.object)
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if s.storage == self.object:
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s.delete()
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else:
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del_error = 'Cannot delete stock from another storage.'
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except:
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del_error = 'Could not find requested stock in this storage.'
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context = self.get_context_data(**kwargs)
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return self.render_to_response(context)
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def handle_update_watermark(self, request, **kwargs):
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edit_form = EditWatermarkForm(data=request.POST)
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update_watermark_error = None
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if edit_form.is_valid():
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edit_form.save()
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else:
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pass # Todo: Handle error
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context = self.get_context_data(**kwargs)
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return self.render_to_response(context)
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def handle_amount_change_post(self, request, increase, **kwargs):
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edit_form = EditStockAmountForm(data=request.POST)
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if edit_form.is_valid():
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edit_form.save(increase)
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context = self.get_context_data(**kwargs)
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return self.render_to_response(context)
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def handle_add_stock_post(self, request, **kwargs):
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f = AddStockForm(data=request.POST)
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error_occured = False
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if f.is_valid():
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try:
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f.save(self.object)
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except Exception as ex:
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f.add_error('', str(ex))
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error_occured = True
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else:
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error_occured = True
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context = self.get_context_data(**kwargs)
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if error_occured:
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context['add_stock_form'] = f
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return self.render_to_response(context)
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def post(self, request, *args, **kwargs):
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self.object = self.get_object()
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if 'submit-add-storage' in request.POST:
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return self.handle_add_storage_post(request, **kwargs)
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elif 'submit-delete-storage' in request.POST:
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return self.handle_del_storage_post(request, **kwargs)
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elif 'submit-delete-stock' in request.POST:
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return self.handle_del_stock_post(request, **kwargs)
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elif 'submit-edit-watermark' in request.POST:
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return self.handle_update_watermark(request, **kwargs)
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elif 'submit-amount-reduce' in request.POST:
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return self.handle_amount_change_post(request, False, **kwargs)
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elif 'submit-amount-increase' in request.POST:
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return self.handle_amount_change_post(request, True, **kwargs)
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elif 'submit-add-stock' in request.POST:
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return self.handle_add_stock_post(request, **kwargs)
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return super().post(request, *args, **kwargs)
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class ComponentDetailView(LoginRequiredMixin, BaseTemplateMixin, DetailView):
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template_name = 'parts/components-detail.html'
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model = Component
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pk_url_kwarg = 'uuid'
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base_title = ''
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navbar_selected = 'Components'
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|
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def prepare_initial_param_formset_data(self):
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parameters = ComponentParameter.objects.filter(component=self.object)
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initdata = []
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for param in parameters:
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param_type = param.parameter_type.parameter_type
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if param_type == 'F':
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value = param.text_value
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else:
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value = param.value
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initdata.append({'parameter_type': param.parameter_type, 'value': value})
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return initdata
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def get_context_data(self, **kwargs):
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self.base_title = 'Component / '+self.object.name
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context = super().get_context_data(**kwargs)
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context['component'] = self.object
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context['edit_form'] = EditComponentForm(instance=self.object)
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ParameterFormset = forms.formset_factory(EditComponentParameterForm, extra=1, max_num=100, can_delete=True)
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context['param_formset'] = ParameterFormset(
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initial=self.prepare_initial_param_formset_data())
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context['stocks'] = Stock.objects.filter(component=self.object)
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DistriNumFormSet = forms.modelformset_factory(DistributorNum, form=DistributorNumberForm, extra=2)
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context['distri_num_formset'] = DistriNumFormSet(queryset=DistributorNum.objects.filter(component=self.object), auto_id='id_fs_distri_no_%s')
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return context
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def handle_submit_edit_post(self, request, **kwargs):
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form_error = False
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form = EditComponentForm(instance=self.object, data=request.POST, files=request.FILES)
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if form.is_valid():
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try:
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form.save()
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except IntegrityError as ie:
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form.add_error('name', 'Component name, package, and manufacturer are not unique!')
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form.add_error('package', 'Component name, package, and manufacturer are not unique!')
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form.add_error('manufacturer', 'Component name, package, and manufacturer are not unique!')
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form_error = True
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self.object = self.get_object()
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else:
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form_error = True
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context = self.get_context_data(**kwargs)
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if form_error:
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context['edit_form'] = form
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return self.render_to_response(context)
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|
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def handle_submit_edit_params_post(self, request, **kwargs):
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ParameterFormset = forms.formset_factory(EditComponentParameterForm, extra=1, max_num=100)
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fs = ParameterFormset(initial=self.prepare_initial_param_formset_data(), data=request.POST)
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errors_set = False
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|
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if fs.is_valid():
|
|
# Go through all the parameter forms:
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|
for form in fs:
|
|
if not form.has_changed():
|
|
continue
|
|
|
|
# Form has changed. Process the new value
|
|
try:
|
|
parameter_to_change = ComponentParameter.objects.get(component=self.object,
|
|
parameter_type__parameter_name=form.initial['parameter_type'])
|
|
parameter_to_change.parameter_type = form.cleaned_data['parameter_type_object']
|
|
parameter_to_change.value = 0
|
|
parameter_to_change.text_value = None
|
|
except:
|
|
try:
|
|
parameter_to_change = ComponentParameter.objects.create(component=self.object,
|
|
parameter_type=form.cleaned_data['parameter_type_object'])
|
|
except:
|
|
form.add_error('parameter_type', 'Parameter could not be saved. Unique?')
|
|
errors_set = True
|
|
break
|
|
|
|
parameter_to_change.value = 0
|
|
parameter_to_change.text_value = None
|
|
|
|
if parameter_to_change.parameter_type.parameter_type == 'F':
|
|
parameter_to_change.text_value = form.cleaned_data['processed_value']
|
|
parameter_to_change.value = 0
|
|
else:
|
|
parameter_to_change.value = form.cleaned_data['processed_value']
|
|
|
|
try:
|
|
parameter_to_change.save()
|
|
except:
|
|
form.add_error('parameter_type', 'Parameter could not be saved. Unique?')
|
|
errors_set = True
|
|
|
|
context = self.get_context_data()
|
|
if not fs.is_valid() or errors_set:
|
|
context['param_formset'] = fs
|
|
return self.render_to_response(context)
|
|
|
|
def handle_submit_edit_distri_nums_post(self, request, **kwargs):
|
|
DistriNumFormSet = forms.modelformset_factory(DistributorNum, form=DistributorNumberForm, extra=2, formset=DistributorNumberFormSet)
|
|
fs = DistriNumFormSet(queryset=DistributorNum.objects.filter(component=self.object), data=request.POST, auto_id='id_fs_distri_no_%s')
|
|
|
|
if fs.is_valid():
|
|
print('Valid')
|
|
fs.save(self.object)
|
|
else:
|
|
print('Invalid')
|
|
|
|
context = self.get_context_data()
|
|
if not fs.is_valid():
|
|
context['distri_num_formset'] = fs
|
|
return self.render_to_response(context)
|
|
|
|
|
|
def post(self, request, *args, **kwargs):
|
|
self.object = self.get_object()
|
|
if 'submit-edit-comp' in request.POST:
|
|
return self.handle_submit_edit_post(request, **kwargs)
|
|
elif 'submit-edit-params' in request.POST:
|
|
return self.handle_submit_edit_params_post(request, **kwargs)
|
|
elif 'submit-edit-distri-nums' in request.POST:
|
|
return self.handle_submit_edit_distri_nums_post(request, **kwargs)
|
|
|
|
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) |