Django4全栈进阶之路20 项目实战（三种方式开发部门管理）：方式一：FBV

1、模型

from django.db import models
from django.contrib.auth.models import User

# Create your models here.
class Department(models.Model):
    name = models.CharField(max_length=255, verbose_name='部门名称')
    parent = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children',
                               verbose_name='父级部门')
    description = models.TextField(blank=True, null=True, verbose_name='部门介绍')
    sort = models.IntegerField(default=1, verbose_name="显示排序", help_text="显示排序")
    owner = models.CharField(max_length=32, verbose_name="负责人", null=True, blank=True, help_text="负责人")
    phone = models.CharField(max_length=32, verbose_name="联系电话", null=True, blank=True, help_text="联系电话")
    email = models.EmailField(max_length=32, verbose_name="邮箱", null=True, blank=True, help_text="邮箱")
    status = models.BooleanField(default=True, verbose_name="部门状态", null=True, blank=True, help_text="部门状态")
    created_by = models.ForeignKey(User, on_delete=models.CASCADE, related_name='departments_created', to_field='id',
                                   verbose_name='创建账号')
    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
    updated_by = models.ForeignKey(User, on_delete=models.CASCADE, related_name='departments_updated', to_field='id',
                                   verbose_name='修改账号')
    updated_at = models.DateTimeField(auto_now=True, verbose_name='最后修改时间')

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '部门'
        verbose_name_plural = '部门'

2、视图

from django.contrib.auth.decorators import login_required
from django.http import HttpResponseBadRequest
from django.shortcuts import redirect, render, get_object_or_404

from BaseApp.models import Department

@login_required
def depart_list_view(request):
    depart = Department.objects.all
    if depart:
        return render(request, 'base/depart/depart_list.html', {'departments': depart})
    else:
        error_msg = "No data was found"
        return render(request, 'base/depart/depart_list.html', {'error_msg': error_msg})

@login_required
def depart_create_view(request):
    if request.method == 'POST':
        name = request.POST.get('name')
        description = request.POST.get('description')
        if not name:
            # return HttpResponseBadRequest("部门名称不能为空")
            error_msg = '部门名称不能为空'
            return render(request, 'base/depart/depart_add.html', {'error_msg': error_msg})
        # 判断部门是否已经存在
        if Department.objects.filter(name=name).exists():
            # return HttpResponseBadRequest("部门已经存在")
            error_msg = '部门已经存在'
            return render(request, 'base/depart/depart_add.html', {'error_msg': error_msg})
        if name and description:
            Department.objects.create(name=name, description=description)
            return redirect('depart_list')
    return render(request, 'base/depart/depart_add.html')

@login_required
def depart_update_view(request, pk):
    department = get_object_or_404(Department, pk=pk)
    if request.method == 'POST':
        name = request.POST.get('name')
        description = request.POST.get('description')
        if not name:
            return HttpResponseBadRequest("部门名称不能为空")
        department.name = name
        department.description = description
        department.save()
        return redirect('depart_list')

    return render(request, 'base/depart/depart_edit.html', {'department': department})

@login_required
def depart_delete_view(request, pk):
    try:
        qs = Department.objects.get(id=pk)
    except Department.DoesNotExist:
        error_msg = '部门不存在'
        return redirect('depart_list', error_msg=error_msg)
    else:
        qs.delete()
        return redirect('depart_list')

3、路由

from django.urls import path

from . import views

# 路由
urlpatterns = [
    # FBV模式
    path('depart/list/', views.depart_list_view, name='depart_list'),
    path('depart/add/', views.depart_create_view, name='depart_add'),
    path('depart/edit/<int:pk>/', views.depart_update_view, name='depart_edit'),
    path('depart/delete/<int:pk>/', views.depart_delete_view, name='depart_delete'),

4、前端模板

depart_add.html

{% extends 'base.html' %}
{% block content %}
    <div class="card mt-3">
        <div class="card-header"> 新增部门</div>
        <div class="card-body">
            <form method="POST">
                {% csrf_token %}
                {% if error_msg %}
                    <p class="error">{{ error_msg }}</p>
                {% endif %}
                <div class="form-group">
                    <label for="name">部门名称:</label>
                    <input type="text" id="name" name="name" required class="form-control">
                </div>
                <br>
                <div class="form-group">
                    <label for="description">部门介绍:</label>
                    <textarea id="description" required class="form-control"></textarea>
                </div>
                <br>
                <button type="submit" class="btn btn-primary">保存</button>
            </form>
        </div>
    </div>
{% endblock %}

depart_edit.html

{% extends 'base.html' %}
{% block content %}
  <div class="card mt-3">
    <div class="card-header">编辑部门信息</div>
    <div class="card-body">
      <form method="post">
        {% csrf_token %}
        <div class="form-group">
          <label for="name">部门名称</label>
          <input type="text" class="form-control" id="name" name="name" value="{{ department.name }}" required>
        </div>
        <div class="form-group">
          <label for="description">部门描述</label>
          <textarea class="form-control" id="description" name="description" rows="3">{{ department.description }}</textarea>
        </div>
        <button type="submit" class="btn btn-primary">保存</button>
      </form>
    </div>
  </div>
{% endblock %}

depart_list.html

{% extends 'base.html' %}
{% block content %}
    <div style="margin-top: 16px;">
        <a class="btn btn-primary" href="{% url 'depart_add' %}">新增部门</a>
    </div>
    <div class="card mt-3">
        <div class="card-header"> 部门列表</div>
        <div class="card-body">
            <table class="table table-bordered">
                <thead>
                <tr>
                    <th>部门名称</th>
                    <th>部门介绍</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
                {% for department in departments %}
                    <tr>
                        <td>
                            {{ department.name }}
                        </td>
                        <td>
                            {{ department.description }}
                        </td>
                        <td>
                            <a class="btn btn-primary btn-xs"
                               href="{% url 'depart_edit' pk=department.id %}">编辑</a>
                            <a class="btn btn-danger btn-xs"
                               href="{% url 'depart_delete' pk=department.id %}"
                               onclick="return confirm('确定要删除吗？')">删除</a>
                        </td>
                    </tr>
                {% empty %}
                    <tr>
                        No departments found.
                    </tr>
                {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
{% endblock %}