CRM项目实战-kingadmin多条件过滤功能开发

filter 条件

user.objects.filter( a = 0 , b = 1 )

　　　　　  filter( a = ' 0 ' , b = ' 1 ' )

　　　　　  filter(**{ a:0 , b : 1 } )　　

　　　　　  filter(**{ a : ' 0 ' , b : ' 1 ' } )

以上四种结果一样

导入模块方法：

   cls = importlib.import_module(app_name)

　　mod=getattr(cls,"kingadmin")

   mod = __import__('%s.kingadmin' % app_name)

from django.shortcuts import render,redirect
from django.contrib.auth import authenticate,login,logout
from django.contrib.auth.decorators import login_required
from django import conf
from kingadmin import app_setup
from crm import models
app_setup.kingadmin_auto_discover()


from kingadmin.sites import  site
print("sites.",site.enabled_admins)

# for k,v in site.enabled_admins.items():
#     for table_name,admin_class in v.items():
#         print(table_name,id(admin_class))
# # Create your views here.


def app_index(request):
    #enabled_admins =

    return render(request,'kingadmin/app_index.html', {'site':site})

def get_filter_result(request,querysets):
    filter_conditions = {}
    for key,val in request.GET.items():
        if val:
            filter_conditions[key] =  val


    print("filter_conditions",filter_conditions)
    print('我')
    print("123456",querysets.filter(**{'consultant': 1, 'status': 0}))
    print("789456",querysets.filter(consultant="1",status='0'))
    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"""
    #print("app_name,model_name:",site.enabled_admins[app_name][model_name])
    admin_class = site.enabled_admins[app_name][model_name]
    querysets = admin_class.model.objects.all()

    querysets,filter_condtions  = get_filter_result(request,querysets)
    admin_class.filter_condtions = filter_condtions

    print(request.GET)
    #print("admin class",admin_class.model )

    return render(request,'kingadmin/table_obj_list.html', {'querysets':querysets,'admin_class':admin_class})


def acc_login(request):
    error_msg = ''
    if request.method == "POST":
        username = request.POST.get('username')
        password = request.POST.get('password')

        user = authenticate(username=username,password=password)
        if user:
            print("passed authencation",user)
            login(request,user)
            #request.user = user

            return  redirect( request.GET.get('next','/kingadmin/') )
        else:
            error_msg = "Wrong username or password!"
    return render(request, 'kingadmin/login.html', {'error_msg':error_msg})


def acc_logout(request):
    logout(request)
    return redirect("/login/")

views.py

from django.template import Library
from django.utils.safestring import mark_safe
import datetime ,time
register = Library()

@register.simple_tag
def build_filter_ele(filter_column,admin_class):

    column_obj = admin_class.model._meta.get_field(filter_column)
    print("column obj:",column_obj)
    try:
        filter_ele = "<select name='%s'>" % filter_column
        for choice in column_obj.get_choices():
            selected = ''
            if filter_column in admin_class.filter_condtions:#当前字段被过滤了
                # print("filter_column", choice,
                #       type(admin_class.filter_condtions.get(filter_column)),
                #       admin_class.filter_condtions.get(filter_column))
                if str(choice[0]) == admin_class.filter_condtions.get(filter_column):#当前值被选中了
                    selected = 'selected'
                    print('selected......')

            option = "<option value='%s' %s>%s</option>" % (choice[0],selected,choice[1])
            filter_ele += option
    except AttributeError as e:
        print("err",e)
        filter_ele = "<select name='%s__gte'>" % filter_column
        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)'],
                ['','ALL'],
            ]

            for i in time_list:
                selected = ''
                time_to_str = ''if not i[0] else  "%s-%s-%s"%(i[0].year,i[0].month,i[0].day)
                if  "%s__gte"% filter_column in admin_class.filter_condtions:  # 当前字段被过滤了
                    print('-------------gte')
                    if time_to_str == admin_class.filter_condtions.get("%s__gte"% filter_column):  # 当前值被选中了
                        selected = 'selected'
                option = "<option value='%s' %s>%s</option>" % \
                         (time_to_str ,selected,i[1])
                filter_ele += option

    filter_ele += "</select>"
    return mark_safe(filter_ele)



@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:

        column_obj = admin_class.model._meta.get_field(column_name)
        if column_obj.choices: #get_xxx_display
            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)

kingadmin_tags.py

from  django import conf

def kingadmin_auto_discover():
    for app_name in conf.settings.INSTALLED_APPS:
        # mod = importlib.import_module(app_name, 'kingadmin')
        try:
            mod = __import__('%s.kingadmin' % app_name)
            #print(mod.kingadmin)
        except ImportError :
            pass

app_setup.py