stark——分页、search、actions

# -*- coding:utf-8 -*-
__author__ &＃61; &＃39;Qiushi Huang&＃39;from django.conf.urls import url
from django.shortcuts import HttpResponse, render, redirect
from django.utils.safestring import mark_safe
from django.urls import reverse
from stark.utils.page import Paginationclass ShowList(object):"""展示页面类"""def __init__(self, config, data_list, request):self.config &＃61; config # 接收传递过来的配置类对象 ModelStark的实例对象self.data_list &＃61; data_list # 接收传递过来的当前表的所有对象self.request &＃61; request # # 分页data_count &＃61; self.data_list.count()current_page &＃61; int(self.request.GET.get("page", 1)) # 默认是第一页base_path &＃61; self.request.path # /stark/app01/book/
self.pagination &＃61; Pagination(current_page, data_count, base_path, self.request.GET, per_page_num&＃61;1, pager_count&＃61;11,)print("data_list", self.data_list) # data_list , , ]>self.page_data &＃61; self.data_list[self.pagination.start:self.pagination.end]print("page_data", self.page_data) # page_data ]>def get_header(self):"""构建表头"""header_list &＃61; []print("header", self.config.new_list_display()) # [checkbox ,"__str__", edit ,deletes]for field in self.config.new_list_display():if callable(field):# 如果是函数val &＃61; field(self, header&＃61;True)header_list.append(val)else:# 如果是字符串if field &＃61;&＃61; "__str__":header_list.append(self.config.model._meta.model_name.upper()) # 当前模型表名else:# 如果不是"__str__"# header_list.append(field)val &＃61; self.config.model._meta.get_field(field).verbose_nameheader_list.append(val)return header_listdef get_body(self):"""构建表单数据"""new_data_list &＃61; []# for obj in self.data_list:for obj in self.page_data: # 当前页面的数据temp &＃61; []for field in self.config.new_list_display(): # ["__str__", ] ["pk","name","age",edit]if callable(field):val &＃61; field(self.config, obj)else:val &＃61; getattr(obj, field)if field in self.config.list_display_links:# _url &＃61; reverse("%s_%s_change" % (app_label, model_name), args&＃61;(obj.pk,))_url &＃61; self.config.get_change_url(obj)val &＃61; mark_safe("%s" % (_url, val))temp.append(val)new_data_list.append(temp)return new_data_listclass ModelStark(object):"""默认类&＃xff0c;定制配置类"""list_display &＃61; ["__str__",]list_display_links &＃61; []modelform_class &＃61; []search_fields &＃61; []def __init__(self, model, site):self.model &＃61; modelself.site &＃61; site# 删除、编辑&＃xff0c;复选框def edit(self, obj&＃61;None, header&＃61;False):"""编辑"""if header:# 如果是表头显示操作return "操作"_url &＃61; self.get_change_url(obj)return mark_safe("编辑" % _url)def deletes(self, obj&＃61;None, header&＃61;False):"""删除"""if header:# 如果是表头显示操作return "操作"_url &＃61; self.get_delete_url(obj)# return mark_safe("删除" % obj.pk)return mark_safe("删除" % _url)def checkbox(self, obj&＃61;None, header&＃61;False):"""复选框"""if header:# 如果是表头显示操作return mark_safe("")return mark_safe("")def get_modelform_class(self):"""用来获取modelform类"""if not self.modelform_class:# 如果没有值from django.forms import ModelFormfrom django.forms import widgets as widclass ModelFormDemo(ModelForm):class Meta:model &＃61; self.modelfields &＃61; "__all__"return ModelFormDemoelse:# 如果有值说明在用户已经自己定制过了,直接取值return self.modelform_classdef add_view(self, request):ModelFormDemo &＃61; self.get_modelform_class()if request.method &＃61;&＃61; "POST":form &＃61; ModelFormDemo(request.POST)if form.is_valid(): # 校验字段全部合格
form.save()return redirect(self.get_list_url()) # 跳转到当前访问表的查看页面# &＃xff08;精髓&＃xff09;校验有错误返回页面&＃xff0c;且包含了错误信息return render(request, "add_view.html", locals())form &＃61; ModelFormDemo() # 实例化return render(request, "add_view.html", locals())def delete_view(self, request, id):url &＃61; self.get_list_url()if request.method &＃61;&＃61; "POST":self.model.objects.filter(pk&＃61;id).delete()return redirect(url)# self.model.objects.filter(pk&＃61;id).delete()return render(request, "delete_view.html", locals())def change_view(self, request, id):"""编辑视图"""ModelFormDemo &＃61; self.get_modelform_class()# 编辑对象edit_obj &＃61; self.model.objects.filter(pk&＃61;id).first()if request.method &＃61;&＃61; "POST":form &＃61; ModelFormDemo(request.POST, instance&＃61;edit_obj) # instance就是给这个记录更改为最新的数据if form.is_valid(): # 校验字段全部合格
form.save()return redirect(self.get_list_url()) # 跳转到当前访问表的查看页面# &＃xff08;精髓&＃xff09;校验有错误返回页面&＃xff0c;且包含了错误信息return render(request, "add_view.html", locals())form &＃61; ModelFormDemo(instance&＃61;edit_obj) # 用instance放入编辑对象就有了编辑数据return render(request, "change_view.html", locals())def new_list_display(self):"""返回新的列表"""temp &＃61; []temp.append(ModelStark.checkbox) # 在列表中放一个checkbox名字temp.extend(self.list_display) # 扩展进一个列表["pk","name","age"]if not self.list_display_links:# 如果没有值
temp.append(ModelStark.edit)# temp.append(ModelStark.edit) # edit函数名temp.append(ModelStark.deletes) # deletes函数名return temp # 返回新的列表def get_change_url(self,obj):model_name &＃61; self.model._meta.model_nameapp_label &＃61; self.model._meta.app_label_url &＃61; reverse("%s_%s_change" % (app_label, model_name), args&＃61;(obj.pk,))return _urldef get_delete_url(self, obj):model_name &＃61; self.model._meta.model_nameapp_label &＃61; self.model._meta.app_label_url &＃61; reverse("%s_%s_delete" % (app_label, model_name), args&＃61;(obj.pk,))return _urldef get_add_url(self):model_name &＃61; self.model._meta.model_nameapp_label &＃61; self.model._meta.app_label_url &＃61; reverse("%s_%s_add" % (app_label, model_name))return _urldef get_list_url(self):model_name &＃61; self.model._meta.model_nameapp_label &＃61; self.model._meta.app_label_url &＃61; reverse("%s_%s_list" % (app_label, model_name))return _urldef get_search_condition(self, request):key_word &＃61; request.GET.get("q", "") # 取不到q则直接取空self.key_word &＃61; key_wordfrom django.db.models import Qsearch_connection &＃61; Q()if key_word: # 判断key_word是否为空search_connection.connector &＃61; "or" # 查询条件设置为或for search_field in self.search_fields: # self.search_fields # [&＃39;title&＃39;, "price"]search_connection.children.append((search_field &＃43; "__contains", key_word))return search_connectiondef list_view(self, request):# 获取search的Q对象search_condition &＃61; self.get_search_condition(request)# 筛选当前表获取的数据data_list &＃61; self.model.objects.all().filter(search_condition)# 获取showlist展示页面show_list &＃61; ShowList(self, data_list, request)header_list &＃61; show_list.get_header()new_data_list &＃61; show_list.get_body()# 构建一个查看urladd_url &＃61; self.get_add_url()print("add_url", add_url)return render(request, "list_view.html", locals())def get_urls_2(self):temp &＃61; []# 用name取别名app名&＃43;model名&＃43;操作名可以保证别名不会重复model_name &＃61; self.model._meta.model_nameapp_label &＃61; self.model._meta.app_labeltemp.append(url(r"^add/", self.add_view, name&＃61;"%s_%s_add" % (app_label, model_name)))temp.append(url(r"^(\d&＃43;)/delete/", self.delete_view, name&＃61;"%s_%s_delete" % (app_label, model_name)))temp.append(url(r"^(\d&＃43;)/change/", self.change_view, name&＃61;"%s_%s_change" % (app_label, model_name)))temp.append(url(r"^$", self.list_view, name&＃61;"%s_%s_list" % (app_label, model_name)))return temp&＃64;propertydef urls_2(self):return self.get_urls_2(), None, None # [], None, Noneclass StarkSite(object):"""site单例类"""def __init__(self):self._registry &＃61; {}def register(self, model, stark_class&＃61;None, **options):"""注册"""if not stark_class:# 如果注册的时候没有自定义配置类,执行stark_class &＃61; ModelStark # 配置类# 将配置类对象加到_registry字典中&＃xff0c;键为模型类self._registry[model] &＃61; stark_class(model, self) # _registry&＃61;{&＃39;model&＃39;:admin_class(model)}def get_urls(self):"""构造一层url"""temp &＃61; []for model, stark_class_obj in self._registry.items():# model:一个模型表# stark_class_obj:当前模型表相应的配置类对象
model_name &＃61; model._meta.model_nameapp_label &＃61; model._meta.app_label# 分发增删改查temp.append(url(r"^%s/%s/" % (app_label, model_name), stark_class_obj.urls_2))"""path(&＃39;app01/userinfo/&＃39;,UserConfig(Userinfo,site).urls2),path(&＃39;app01/book/&＃39;,ModelStark(Book,site).urls2),"""return temp&＃64;propertydef urls(self):return self.get_urls(), None, Nonesite &＃61; StarkSite() # 单例对象