368 lines
12 KiB
Python
368 lines
12 KiB
Python
from django.core.validators import RegexValidator # 进行数据校验的正则表达式
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from django.core.exceptions import ValidationError # 捕获表单提交的异常错误
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from django.shortcuts import render, redirect
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from app.models import Department, UserInfo, PrettyNumber
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from django import forms # 构建表单模型
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from app.utils.pagination import Pagination # 导入分页导航条
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from django.utils.safestring import mark_safe # 确保传输的字符串是安全的，用于传输拼接分页的html代码
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# Create your views here.
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def depart_list(request):
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"""
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部门列表
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"""
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data_list = Department.objects.all()
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return render(request, 'depart_list.html', {'queryset': data_list})
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def depart_add(request):
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"""
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新增部门
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"""
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if request.method == 'GET':
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return render(request, 'depart_add.html')
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title = request.POST.get('title')
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Department.objects.create(title=title)
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return redirect('/depart/list')
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def depart_delete(request):
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"""
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删除部门
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"""
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nid = request.GET.get('nid')
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Department.objects.filter(id=nid).delete()
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return redirect('/depart/list')
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def depart_edit(request, nid):
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"""
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编辑部门
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nid 用于接收前端传递过来的id,他的名字要和urls.py文件中定义的一样
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"""
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if request.method == 'GET': # 进入编辑页面
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row_object = Department.objects.filter(id=nid).first()
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return render(request, 'depart_edit.html', {'row_object': row_object})
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# 保存修改POST提交
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title = request.POST.get('title')
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Department.objects.filter(id=nid).update(title=title)
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return redirect('/depart/list')
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def user_list(request):
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"""
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用户列表
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"""
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queryset = UserInfo.objects.all()
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page_object = Pagination(request, queryset,PAGE_SIZE=5) # 实例化分页导航条类
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page_queryset = page_object.page_queryset # 获得分完页的数据结果
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# 生成分页导航条
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page_nav = page_object.html()
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context = {
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'queryset': page_queryset, # 分完页的数据结果
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'page_nav': page_nav # 生成的页码导航条
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}
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return render(request, 'user_list.html', context)
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def user_add(request):
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"""
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添加用户 (原始实现方式)
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缺点：
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1.要重复前端form表单
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2.用户提交数据未校验
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3.前端输入错误没有提示
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4.关联的数据要手动获取，前端要循环渲染
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"""
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if request.method == 'GET':
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content = {
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'gender': UserInfo.gender_choices,
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'depart': Department.objects.all()
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}
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return render(request, 'user_add.html', content)
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name = request.POST.get('name')
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password = request.POST.get('password')
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age = request.POST.get('age')
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account = request.POST.get('account')
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create_time = request.POST.get('create_time')
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depart_id = request.POST.get('depart')
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gender = request.POST.get('gender')
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UserInfo.objects.create(name=name, password=password, age=age,
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account=account, create_time=create_time,
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depart_id=depart_id, gender=gender)
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return redirect('/user/list')
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class UserModelForm(forms.ModelForm):
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"""
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用户类表单模型
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作用：用于定义渲染到前端的数据，设置校验规则等
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用法：
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用ModelForm来操作表记录
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1.基本用法：首先从django.forms导入ModelForm；
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2.编写一个自己的类，继承ModelForm；
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3.在新类里，设置元类Meta；
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4.在Meta中，设置model属性为你要关联的ORM模型，这里是UserInfo；
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5.在Meta中，设置fields属性为你要在表单中使用的字段列表；
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6.列表里的值，应该是ORM模型model中的字段名。
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"""
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# 重新定义name字段的属性和校验规则
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name = forms.CharField(min_length=2, label='姓名')
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class Meta:
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model = UserInfo # 指定需要显示的表名（在models.py中定义）
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# 指定要操作的字段名，是一个列表
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fields = ['name', 'age', 'gender', 'depart', 'create_time', 'account']
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# 给表单控件逐个添加属性
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# widgets = {
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# 'name': forms.TextInput(attrs={'class': 'form-control'}),
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# 'password': forms.PasswordInput(attrs={'class': 'form-control'}),
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# 'create_time': forms.DateInput(attrs={'class': 'form-control'}),
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# }
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# 给所有表单控件添加属性
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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for name, field in self.fields.items():
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field.widget.attrs = {"class": "form-control"}
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class PrettyNumberForm(forms.ModelForm):
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"""
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靓号类表单模型
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具体使用注解，见UserModelForm类
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"""
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# 重新定义mobile字段的属性和校验规则 方式1
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mobile = forms.CharField(
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min_length=11, # 最小长度
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label='号码',
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# 通过正则进行数据校验
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validators=[RegexValidator(r'^1[3-9]\d{9}$', '号码错误,长度不能超过11位')],
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)
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class Meta:
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model = PrettyNumber # 指定需要显示的表名（在models.py中定义）
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# 指定要操作的字段名，是一个列表
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# fields = ['mobile', 'price', 'level', 'status']
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fields = '__all__' # 渲染所有字段
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# exclude = ['level'] # 排除某个字段
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# 给所有表单控件添加属性
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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for name, field in self.fields.items():
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field.widget.attrs = {"class": "form-control"}
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# 对字段进行一些数据校验或操作 方式2
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# 名称必须是clean_字段名
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# 也称为钩子方法，更灵活，比如手机号是否已经存在...
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def clean_mobile(self):
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txt_value = self.cleaned_data['mobile'] # 获取到用户输入的字段值
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num_exist = PrettyNumber.objects.filter(mobile=txt_value).exists()
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if num_exist:
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raise ValidationError("号码已经存在")
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return txt_value
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class PrettyNumberEditForm(forms.ModelForm):
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"""
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靓号编辑类表单模型
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具体使用注解，见UserModelForm类
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"""
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# 重新定义mobile字段的属性和校验规则 方式1
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mobile = forms.CharField(
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label='号码11',
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disabled=True,
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)
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class Meta:
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model = PrettyNumber # 指定需要显示的表名（在models.py中定义）
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# 指定要操作的字段名，是一个列表
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# fields = ['mobile', 'price', 'level', 'status']
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fields = '__all__' # 渲染所有字段
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# 给所有表单控件添加属性
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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for name, field in self.fields.items():
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field.widget.attrs = {"class": "form-control"}
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# 对字段进行一些数据校验或操作 方式2
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# 名称必须是clean_字段名
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# 也称为钩子方法，更灵活，比如手机号是否已经存在...
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def clean_mobile(self):
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txt_value = self.cleaned_data['mobile'] # 获取到用户输入的字段值
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# instance是编辑时传入的值，pk是id主键
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nid = self.instance.id
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# print(self.instance.mobile)
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# 修改时，要排除当前号码以外的其他数据
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# 也就是 where mobile=18995009009 and id!=2
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num_exist = PrettyNumber.objects.filter(mobile=txt_value).exclude(id=nid)
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if num_exist:
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raise ValidationError("号码已经存在")
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return txt_value
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def user_add_modelform(request):
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"""
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添加用户（通过Django ModelForm组件实现 最简便）
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"""
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if request.method == 'GET':
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form = UserModelForm() # 实例化类
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return render(request, 'user_add_modelform.html', {'form': form})
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# POST请求
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form = UserModelForm(data=request.POST) # 拿到所有提交过来的数据
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if form.is_valid(): # 数据校验
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# 如果你想对数据表中的字段另外再传递值来保存，就用
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# form.instance.字段名 = '值'
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form.instance.password = '0000' # 默认密码是0000
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form.save() # 向 model = UserInfo 定义的表保存数据
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return redirect('/user/list/')
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else:
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# form中带了POST过来的请求
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return render(request, 'user_add_modelform.html', {'form': form})
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def user_edit_modelform(request, nid):
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"""
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用户信息修改
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nid 用于接收前端传递过来的id,他的名字要和urls.py文件中定义的一样
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"""
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# 1.先查询到该条记录
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# 2.拿到POST请求过来的数据（data=request.POST），将将查询到数据对象传递给form（instance=row_data）
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row_data = UserInfo.objects.filter(id=nid).first()
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if request.method == 'GET':
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form = UserModelForm(instance=row_data) # 将查询到的对象传递给form
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return render(request, 'user_edit_modelform.html', {'form': form})
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# POST请求
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form = UserModelForm(data=request.POST, instance=row_data) # 拿到所有提交过来的数据
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if form.is_valid(): # 数据校验
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form.save() # 向 model = UserInfo 定义的表保存数据
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return redirect('/user/list/')
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else:
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# form中带了POST过来的请求
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return render(request, 'user_edit_modelform.html', {'form': form})
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def user_delete_modelform(request, nid):
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"""
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用户信息删除
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nid 用于接收前端传递过来的id,他的名字要和urls.py文件中定义的一样
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"""
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UserInfo.objects.filter(id=nid).delete()
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return redirect('/user/list/')
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def pn_list(request):
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"""
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靓号列表
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"""
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# 第一次显示的时候，查询条件也就是data_dict为空，所以查询所有数据
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data_dict = {}
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search_data = request.GET.get('searchMobile', '')
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if search_data:
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data_dict['mobile__contains'] = search_data
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# ########## 分页准备数据阶段 ##########
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# 字典格式： queryset = {‘mobile__contains’: '9999'}
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# **data_dict传入字典，必须以**打头
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# order_by('-level') 倒序排列
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queryset = PrettyNumber.objects.filter(**data_dict).order_by('-level')
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page_object = Pagination(request, queryset) # 实例化分页导航条类
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page_queryset = page_object.page_queryset # 获得分完页的数据结果
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# ########## 分页数据准备结束 ##########
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# 生成分页导航条
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page_nav = page_object.html()
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# 把所有参数生成字典传递给前端
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context = {
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'search_data': search_data,
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'queryset': page_queryset, # 分完页的数据结果
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'page_nav': page_nav # 生成的页码导航条
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}
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return render(request, 'PrettyNumber_list.html', context)
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def pn_add(request):
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"""
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增加靓号
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"""
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if request.method == 'GET':
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form = PrettyNumberForm() # 实例化表单模型类
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return render(request, 'PrettyNumber_add_modelform.html', {'form': form})
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# POST请求
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form = PrettyNumberForm(data=request.POST) # 拿到所有提交过来的数据
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if form.is_valid(): # 数据校验
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# 如果你想对数据表中的字段另外再传递值来保存，就用
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# form.instance.字段名 = '值'
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# form.instance.password = '0000' # 默认密码是0000
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form.save() # 向 model = PrettyNumber 定义的表保存数据
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return redirect('/PrettyNumber/list/')
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else:
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# form中带了POST过来的请求
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return render(request, 'PrettyNumber_add_modelform.html', {'form': form})
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def pn_edit(request, nid):
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"""
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靓号编辑
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"""
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row_data = PrettyNumber.objects.filter(id=nid).first()
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if request.method == 'GET':
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form = PrettyNumberEditForm(instance=row_data) # 将查询到的对象传递给form
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return render(request, 'PrettyNumber_edit_modelform.html', {'form': form})
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# POST请求
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form = PrettyNumberEditForm(data=request.POST, instance=row_data) # 拿到所有提交过来的数据
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if form.is_valid(): # 数据校验
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form.save() # 向 model = UserInfo 定义的表保存数据
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return redirect('/PrettyNumber/list/')
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else:
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# form中带了POST过来的请求
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return render(request, 'PrettyNumber_edit_modelform.html', {'form': form})
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def pn_delete(request, nid):
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"""
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靓号删除
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"""
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PrettyNumber.objects.filter(id=nid).delete()
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return redirect('/PrettyNumber/list/')
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