399 lines
14 KiB
Python
399 lines
14 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
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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 .forms import MyTestForm, AddSubStorageForm, DeleteStockForm, EditWatermarkForm, EditStockAmountForm, AddStockForm
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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 = 10
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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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pkg_page_num = self.request.GET.get('pkg_page', default= 1)
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comp_paginator = Paginator(Component.objects.all(), self.default_page_size)
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pkg_paginator = Paginator(Package.objects.all(), self.default_page_size)
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context['components'] = comp_paginator.get_page(comp_page_num)
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context['packages'] = pkg_paginator.get_page(pkg_page_num)
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return context
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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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# 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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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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return context
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