CRM客户关系管理系统（四）
kingadmin设计开发
4.4.根据list_display配置生成数据列表
（1）kingadmin/views.py
（2）kingadmin/templates/kingadmin/table_obj_list.html
通过自定义的admin_class类，循环出list_display所有的列
{#kingadmin/templates/kingadmin/table_obj_list.html#} {% extends \'kingadmin/index.html\' %} {% block right-content-container %} <h2 class="page-header">app</h2> <div> {{ querysets }} <table class="table table-striped"> <thead> <tr> {% for column in admin_class.list_display %} <th>{{ column }}</th> {% endfor %} </tr> </thead> <tbody> </tbody> </table> </div> {% endblock %}
（3）自定义模板标签
kingadmin下创建python package "templatetags",再新建kingadmin_tags.py
# kingadmin/templatetags/kingadmin_tags.py from django.template import Library from django.utils.safestring import mark_safe register = Library() @register.simple_tag def build_table_row(obj,admin_class): \'\'\'生成一条记录的html element\'\'\' ele = \'\' for column_name in admin_class.list_display: #通过反射获取列的数据，两个参数，一个是object，一个是列名 column_data = getattr(obj,column_name) td_ele = "<td>%s</td>"%column_data ele += td_ele return mark_safe(ele)
（4）table_obj_list.html
首先要导入：{% load kingadmin_tags%}
然后使用自定义模板标签：<tr>{% build_table_row obj admin_class %}</tr>
使用的时候需要传两个参数进去
{#kingadmin/templates/kingadmin/table_obj_list.html#}
{% extends \'kingadmin/index.html\' %}
{% load kingadmin_tags %}
{% block right-content-container %}
<h2 class="page-header">app</h2>
<div>
{{ querysets }}
<table class="table table-striped">
<thead>
<tr>
{% for column in admin_class.list_display %}
<th>{{ column }}</th>
{% endfor %}
</tr>
</thead>
<tbody>
{% for obj in querysets %}
<tr>{% build_table_row obj admin_class %}</tr>
{% endfor %}
</tbody>
</table>
</div>
{% endblock %}
现在访问就可以看到对应列的数据了，但是status显示的是“0”，“1”，我们想要的是“未报名”，“已报名”，还有source,contact_tapy
（5）修改kingadmin_tags.py
因为有的字段有choices，有的字段没有choices,需要添加一个判断
models.CustomerInfo._meta.fields 获取model所有字段的对象
models.CustomerInfo._meta.get_field(\'status\') 取一个字段的对象
get_xxxx_display 显示choices里面的值
# kingadmin/templatetags/kingadmin_tags.py from django.template import Library from django.utils.safestring import mark_safe register = Library() @register.simple_tag def build_table_row(obj,admin_class): \'\'\'生成一条记录的html element\'\'\' ele = \'\' for column_name in admin_class.list_display: #获取所有字段对象 column_obj = admin_class.model._meta.get_field(column_name) #字段对象的choices方法，如果有choices，则get_xxx_display if column_obj.choices: column_data = getattr(obj,\'get_%s_display\'%column_name)() else: column_data = getattr(obj,column_name) td_ele = "<td>%s</td>"%column_data ele += td_ele return mark_safe(ele)
现在访问页面
4.5.添加过滤功能
（1）kingadmin/views.py
# kingadmin/templatetags/kingadmin_tags.py import datetime from django.template import Library from django.utils.safestring import mark_safe register = Library() @register.simple_tag def build_filter_ele(filter_column,admin_class): filter_ele = "<select name=\'%s\'>"%filter_column column_obj = admin_class.model._meta.get_field(filter_column) try: for choice in column_obj.get_choices(): option = "<option value=\'%s\'>%s</option>"%choice filter_ele += option except AttributeError as e: #get_internal_type():获取字段属性 #因为时间的过滤方式是固定的（今天，过去七天，一个月.....），而不是从后台获取的 if column_obj.get_internal_type() in (\'DateField\',\'DateTimeField\'): time_obj = datetime.datetime.now() time_list = [ [\'\',\'--------\'], [time_obj,\'Today\'], [time_obj - datetime.timedelta(7),\'七天内\'], [time_obj.replace(day=1),\'本月\'], [time_obj - datetime.timedelta(90),\'三个月内\'], [time_obj.replace(month=1,day=1),\'YearToDay(YTD)\'], #本年 [\'\',\'ALL\'], ] for i in time_list: option = "<option value=\'%s\'>%s</option>" %(i[0],i[1]) filter_ele += option filter_ele += "</select>" return mark_safe(filter_ele)
（2）table_obj_list.html
<div> <form> {% for filter_column in admin_class.list_filter %} {% build_filter_ele filter_column admin_class %} {% endfor %} <input type="submit" value="过滤"> </form> </div>
访问页面
接下来把数据返回到前端
（3）kingadmin/views.py
def get_filter_result(request,querysets): filter_conditions = {} #获取过滤的字段 for key,val in request.GET.items(): if val: filter_conditions[key] = val #返回过滤后的数据 return querysets.filter(**filter_conditions),filter_conditions @login_required def table_obj_list(request, app_name, model_name): \'\'\'取出指定model里的数据返回给前端\'\'\' #拿到admin_class后，通过它找到拿到model admin_class = site.enable_admins[app_name][model_name] querysets = admin_class.model.objects.all() querysets,filter_conditions = get_filter_result(request,querysets) admin_class.filter_conditions = filter_conditions return render(request, \'kingadmin/table_obj_list.html\',{\'querysets\':querysets,\'admin_class\':admin_class})
（4）kingadmin_tags.py
当选择过滤条件后，给对应值添加选中状态 selected=selected
现在通过时间过滤会报格式不正确的错误
修改时间过滤的格式
现在不报错了，但并没有过滤出数据
因为其它条件过滤的时候值是等于，但是根据时间过滤应该是大于等于才对
修改kingadmin_tags.py