如何用Django建立一个后台CRM系统04

对增加订单进行优化

    -删除home。html模板下的buttom

    -在customer。html下增加 {% url   ‘create_oreder’  customer.id%}

    -优化原来只有单条选择项   增加表单集

      -引入form库中的inlineformser_factory表单集

      -参考父子模板  Customer Order  字段是foreignkey

 

from django.forms import inlineformset_factory

def CreatOrder(request,pk):
    OrderFormSet = inlineformset_factory(Customer,Order,fields=('product','status'))

      -继承表单集  用instance实例还原原本选项

      -对于POST发送方式思路跟原来create_order一样

def CreatOrder(request,pk):
    OrderFormSet = inlineformset_factory(Customer,Order,fields=('product','status'),extra=6)
    customer = Customer.objects.get(id=pk)
    # form = OrderForm(initial={'customer':customer})
    formset = OrderFormSet(instance=customer)
    # formset = OrderFormSet(queryset=Order.objects.none(),instance=customer)
    if request.method == 'POST':
        # form = OrderForm(request.POST)
        formset = OrderFormSet(request.POST,instance=customer)
        if formset.is_valid():
            formset.save()
            return redirect('/')
    context = {'form': formset}
    return render(request,'accounts/orderform.html',context)

    -在orderform。html模板下渲染数据 

      -由于它是表单集 具有多行数据 所以用for循环输出

      -直接输出有BUG 需要加入 { { form。management_form  }}

{% extends 'accounts/main.html' %}
{% load static %}
{% block content %}
    <div class="row">
        <div class="col-md">
            <div class="card card-body">
                <form method="POST" action="">
                    {% csrf_token %}
                    {{ form.management_form }}
                    {% for item in form %}
                        {{ item }}
                        <br>
                        <br>
                    {% endfor %}
                    <input type="submit" value="Submit">

                </form>
            </div>
        </div>
    </div>>





{% endblock %}

 -搜索框搜索

    -添加模块库 pip install Djang-filter

   -创建filter。py

import django_filters
from .models import *

class OrderFilter(django_filters.FilterSet):
    class Meta:
        model = Order
        fields = '__all__'

  -在views中的customer中添加函数语句

    -myfilter是一个查询集   queryset=order 是选定模板属性  

    -order = myfilter。qs  目的是为了页面下方显示出查询结果

    -不需要显示顾客和时间线 在filter。py中排除

    -查询选项增加开始时间和结束时间两条时间线

      -在filter。py中添加自定义属性查找    lookup_expr = 'gte'  大于或等于 xxx   ‘lte’ 小于或等于

from django_filters import DateFilter,CharFilter

class OrderFilter(django_filters.FilterSet):
    start_date = DateFilter(field_name='date_created',lookup_expr='gte')
    end_date = DateFilter(field_name='date_created',lookup_expr='lte')

 

   -添加NOTE属性

     -models。py的Order增加note属性

        -python manage。py makemigrations  +  python manage。migrate  写入数据库

        -在数据库中填入数据

     -在customer模板中修改属性  目的是为了显示出来

<table class="table table-sm">
                <tr>
                    <th>Product</th>
                    <th>note</th>
                    <th>Date Orderd</th>
                    <th>Status</th>
                    <th>Update</th>
                    <th>Remove</th>
                </tr>
                {% for order in order %}
                    <tr>
                        <td>{{ order.product }}</td>
                        <td>{{order.note  }}</td>
                        <td>{{ order.date_created }}</td>
                        <td>{{ order.status }}</td>
                        <td><a class="btn btn-sm btn-info" href="{% url 'update_order' order.id %}">Update</a> </td>
                        <td><a class="btn btn-sm btn-danger" href="{% url 'delete_order' order.id %}">Remove</a> </td>
                    </tr>
                {% endfor %}
            </table

     -在filter。py过滤查询

class OrderFilter(django_filters.FilterSet):
start_date = DateFilter(field_name='date_created',lookup_expr='gte')
end_date = DateFilter(field_name='date_created',lookup_expr='lte')
note = CharFilter(field_name='note', lookup_expr='icontains')

 

 

 

 

 

 

 

 

 

 

        -

posted @ 2020-07-29 00:50  Kangkang丶  阅读(297)  评论(0编辑  收藏  举报