Python中的图书管理系统使用Django源代码.zip

import datetime from django.shortcuts import redirect, render import json from django.contrib import messages from django.contrib.auth.models import User from django.http import HttpResponse from lmsApp import models, forms from django.db.models import Q from django.contrib.auth import authenticate, login, logout, update_session_auth_hash from django.contrib.auth.decorators import login_required def context_data(request): fullpath = request.get_full_path() abs_uri = request.build_absolute_uri() abs_uri = abs_uri.split(fullpath)[0] context = { 'system_host' : abs_uri, 'page_name' : '', 'page_title' : '', 'system_name' : 'Library Managament System', 'topbar' : True, 'footer' : True, } return context def userregister(request): context = context_data(request) context['topbar'] = False context['footer'] = False context['page_title'] = "User Registration" if request.user.is_authenticated: return redirect("home-page") return render(request, 'register.html', context) def save_register(request): resp={'status':'failed', 'msg':''} if not request.method == 'POST': resp['msg'] = "No data has been sent on this request" else: form = forms.SaveUser(request.POST) if form.is_valid(): form.save() messages.success(request, "Your Account has been created succesfully") resp['status'] = 'success' else: for field in form: for error in field.errors: if resp['msg'] != '': resp['msg'] += str('<br />') resp['msg'] += str(f"[{field.name}] {error}.") return HttpResponse(json.dumps(resp), content_type="application/json") @login_required def update_profile(request): context = context_data(request) context['page_title'] = 'Update Profile' user = User.objects.get(id = request.user.id) if not request.method == 'POST': form = forms.UpdateProfile(instance=user) context['form'] = form print(form) else: form = forms.UpdateProfile(request.POST, instance=user) if form.is_valid(): form.save() messages.success(request, "Profile has been updated") return redirect("profile-page") else: context['form'] = form return render(request, 'manage_profile.html',context) @login_required def update_password(request): context =context_data(request) context['page_title'] = "Update Password" if request.method == 'POST': form = forms.UpdatePasswords(user = request.user, data= request.POST) if form.is_valid(): form.save() messages.success(request,"Your Account Password has been updated successfully") update_session_auth_hash(request, form.user) return redirect("profile-page") else: context['form'] = form else: form = forms.UpdatePasswords(request.POST) context['form'] = form return render(request,'update_password.html',context) # Create your views here. def login_page(request): context = context_data(request) context['topbar'] = False context['footer'] = False context['page_name'] = 'login' context['page_title'] = 'Login' return render(request, 'login.html', context) def login_user(request): logout(request) resp = {"status":'failed','msg':''} username = '' password = '' if request.POST: username = request.POST['username'] password = request.POST['password'] user = authenticate(username=username, password=password) if user is not None: if user.is_active: login(request, user) resp['status']='success' else: resp['msg'] = "Incorrect username or password" else: resp['msg'] = "Incorrect username or password" return HttpResponse(json.dumps(resp),content_type='application/json') @login_required def home(request): context = context_data(request) context['page'] = 'home' context['page_title'] = 'Home' context['categories'] = models.Category.objects.filter(delete_flag = 0, status = 1).all().count() context['sub_categories'] = models.SubCategory.objects.filter(delete_flag = 0, status = 1).all().count() context['students'] = models.Students.objects.filter(delete_flag = 0, status = 1).all().count() context['books'] = models.Students.objects.filter(delete_flag = 0, status = 1).all().count() context['pending'] = models.Borrow.objects.filter(status = 1).all().count() context['pending'] = models.Borrow.objects.filter(status = 1).all().count() context['transactions'] = models.Borrow.objects.all().count() return render(request, 'home.html', context) def logout_user(request): logout(request) return redirect('login-page') @login_required def profile(request): context = context_data(request) context['page'] = 'profile' context['page_title'] = "Profile" return render(request,'profile.html', context) @login_required def users(request): context = context_data(request) context['page'] = 'users' context['page_title'] = "User List" context['users'] = User.objects.exclude(pk=request.user.pk).filter(is_superuser = False).all() return render(request, 'users.html', context) @login_required def save_user(request): resp = { 'status': 'failed', 'msg' : '' } if request.method == 'POST': post = request.POST if not post['id'] == '': user = User.objects.get(id = post['id']) form = forms.UpdateUser(request.POST, instance=user) else: form = forms.SaveUser(request.POST) if form.is_valid(): form.save() if post['id'] == '': messages.success(request, "User has been saved successfully.") else: messages.success(request, "User has been updated successfully.") resp['status'] = 'success' else: for field in form: for error in field.errors: if not resp['msg'] == '': resp['msg'] += str('<br/>') resp['msg'] += str(f'[{field.name}] {error}') else: resp['msg'] = "There's no data sent on the request" return HttpResponse(json.dumps(resp), content_type="application/json") @login_required def manage_user(request, pk = None): context = context_data(request) context['page'] = 'manage_user' context['page_title'] = 'Manage User' if pk is None: context['user'] = {} else: context['user'] = User.objects.get(id=pk) return render(request, 'manage_user.html', context) @login_required def delete_user(request, pk = None): resp = { 'status' : 'failed', 'msg':''} if pk is None: resp['msg'] = 'User ID is invalid' else: try: User.objects.filter(pk = pk).delete() messages.success(request, "User has been deleted successfully.") resp['status'] = 'success' except: resp['msg'] = "Deleting User Failed" return HttpResponse(json.dumps(resp), content_type="application/json") @login_required def category(request): context = context_data(request) context['page'] = 'category' context['page_title'] = "Category List" context['category'] = models.Category.objects.filter(delete_flag = 0).all() return render(request, 'category.html', context) @login_required def save_category(request): resp = { 'status': 'failed', 'msg' : '' } if reques