10.17正式开发stark项目(二)
2018-10-17 11:09:48
orm补充参考连接: https://www.cnblogs.com/yuanchenqi/articles/8963244.html
model 进阶 参考连接: https://www.cnblogs.com/yuanchenqi/articles/7570003.html
现在的stark已经增加用不部分定制类信息:
用户可以定制表头显示,中文显示什么的
都是在stark 的ModelStark这个类里面实现了 各种url解耦,各种视图解耦,然后用户的配置类继承了这个类,
关于配置方法,如果用户没有配置则是默认用该类的默认设置,如果用户配置了,则用用户的加了一些判断
关于每个url使用了反向解析,避免了前端页面写死url的事情!
整体都是面向对象,类的使用 解耦!仿照的admin!
在代码中有注释,思路很清晰!顺着url一点一点向下找就好啦!
明天复习Django,明晚上看视频!白天该把博客整理一下啦!直接整理Django!
越努力越幸运!永远不要高估自己!!!
先补充一下知识点:
from django.test import TestCase # Create your tests here. # class A(object): # # x=12 # # def xxx(self): # print(self.x) # # # class B(A): # y=5 # # b=B() # b.xxx() ####################################### # # class Person(object): # def __init__(self,name): # self.name=name # # alex=Person("alex") # # s="name" # # # print(getattr(alex,s)) ######################################## # class Person(object): # def __init__(self,name): # self.name=name # # def eat(self): # print(self) # print("eat....") # 实例方法 # egon=Person("egon") # egon.eat() # 函数 # Person.eat(123) ######################################## # class Person(object): # # def __init__(self,name): # self.name=name # # def __str__(self): # return self.name # # alex=Person("alex") # # print(alex.__str__()) # print(str(alex)) ######################################## def foo(): return print(foo.__name__)
app01/server.py
from stark.service.stark import site,ModelStark from .models import * from django.forms import ModelForm class BookModelForm(ModelForm): class Meta: model = Book fields = "__all__" labels = { "title": "书籍名称", "price": "价格" } class BookConfig(ModelStark): list_display = ["title","price","publishDate"] modelform_class=BookModelForm site.register(Book, BookConfig) site.register(Publish) site.register(Author) site.register(AuthorDetail)
stark/server/stark.py
from django.conf.urls import url from django.shortcuts import render, redirect from django.urls import reverse from django.utils.safestring import mark_safe from django.forms import ModelForm from django.forms import widgets as wid class ModelStark(object): # 默认的list_play[] list_display = ["__str__", ] list_display_links = [] modelform_class = None def __init__(self, model, site): self.model = model self.site = site # 配置表头: 删除 编辑，复选框 def edit(self, obj=None, header=False): """编辑""" if header: return "操作" # return mark_safe("<a href='%s/change'>编辑</a>"%obj.pk) _url = self.get_change_url(obj) return mark_safe("<a href='%s'>编辑</a>" % _url) def deletes(self, obj=None, header=False): """删除""" if header: return "操作" # return mark_safe("<a href='%s/change'>编辑</a>"%obj.pk) _url = self.get_delete_url(obj) return mark_safe("<a href='%s'>删除</a>" % _url) def checkbox(self, obj=None, header=False): """复选框""" if header: return mark_safe('<input id="choice" type="checkbox">') return mark_safe('<input class="choice_item" type="checkbox">') # 获取配置类的表头信息 def get_modelform_class(self): """获取表的配置类""" if not self.modelform_class: # 如果表的配置类为空 class ModelFormDemo(ModelForm): class Meta: model = self.model fields = "__all__" labels = { "" } return ModelFormDemo else: return self.modelform_class # 添加的视图函数 def add_view(self, request): ModelFormDemo = self.get_modelform_class() if request.method == "POST": form = ModelFormDemo(request.POST) if form.is_valid(): form.save() return redirect(self.get_list_url()) return render(request, "add_view.html", locals()) form = ModelFormDemo() return render(request, "add_view.html", locals()) # 删除的视图函数 def delete_view(self, request, id): url = self.get_list_url() if request.method == "POST": self.model.objects.filter(pk=id).delete() return redirect(url) return render(request, "delete_view.html", locals()) # 编辑的视图函数 def change_view(self, request, id): ModelFormDemo = self.get_modelform_class() edit_obj = self.model.objects.filter(pk=id).first() if request.method == "POST": form = ModelFormDemo(request.POST, instance=edit_obj) if form.is_valid(): form.save() return redirect(self.get_list_url()) return render(request, "add_view.html", locals()) form = ModelFormDemo(instance=edit_obj) return render(request, "change_view.html", locals()) # 查看的视图函数 def list_view(self, request): print(self.model) # UserConfig(Userinfo).model print("list_dispaly", self.list_display) data_list = self.model.objects.all() # 【obj1,obj2,....】 # 构建表头 header_list = [] # [checkbox,"pk","name","age",edit ,deletes] 【checkbox ,"__str__", edit ,deletes】 print("header", self.new_list_play()) for field in self.new_list_play(): if callable(field): # header_list.append(field.__name__) val = field(self, header=True) else: if field == "__str__": header_list.append(self.model._meta.model_name.upper()) else: # header_list.append(field) val = self.model._meta.get_field(field).verbose_name header_list.append(val) # 构建表单数据 new_data_list = [] for obj in data_list: temp = [] for filed in self.new_list_play(): # ["__str__",] ["pk","name","age",edit] if callable(filed): val = filed(self, obj) else: val = getattr(obj, filed) if filed in self.list_display_links: # "app01/userinfo/(\d+)/change" _url = self.get_change_url(obj) val = mark_safe("<a href='%s'>%s</a>" % (_url, val)) temp.append(val) new_data_list.append(temp) ''' [ [1,"alex",12], [1,"alex",12], [1,"alex",12], [1,"alex",12], ] ''' print(new_data_list) # 构建一个查看URL add_url = self.get_add_url() return render(request, "list_view.html", locals()) # 获取用户配置类里面的list_play[] def new_list_play(self): temp = [] temp.append(ModelStark.checkbox) temp.extend(self.list_display) if not self.list_display_links: temp.append(ModelStark.edit) temp.append(ModelStark.deletes) return temp """把url进行反向解析,解耦到各自的函数中,函数中直接返回了对应的url""" # 获取修改页面的url def get_change_url(self, obj): model_name = self.model._meta.model_name app_label = self.model._meta.app_label _url = reverse("%s_%s_change" % (app_label, model_name), args=(obj.pk,)) return _url # 获删除改页面的url def get_delete_url(self, obj): model_name = self.model._meta.model_name app_label = self.model._meta.app_label _url = reverse("%s_%s_delete" % (app_label, model_name), args=(obj.pk,)) return _url # 获取添加页面的url def get_add_url(self): model_name = self.model._meta.model_name app_label = self.model._meta.app_label _url = reverse("%s_%s_add" % (app_label, model_name)) return _url # 获取查看页面的url def get_list_url(self): model_name = self.model._meta.model_name app_label = self.model._meta.app_label _url = reverse("%s_%s_list" % (app_label, model_name)) return _url # 二级url分发函数 def get_urls_2(self): temp = [] model_name = self.model._meta.model_name app_label = self.model._meta.app_label temp.append(url(r"^add/", self.add_view, name="%s_%s_add" % (app_label, model_name))) temp.append(url(r"^(\d+)/delete/", self.delete_view, name="%s_%s_delete" % (app_label, model_name))) temp.append(url(r"^(\d+)/change/", self.change_view, name="%s_%s_change" % (app_label, model_name))) temp.append(url(r"^$", self.list_view, name="%s_%s_list" % (app_label, model_name))) return temp @property def urls_2(self): print(self.model) return self.get_urls_2(), None, None class StarkSite(object): def __init__(self): self._registry = {} def register(self, model, stark_class=None): if not stark_class: stark_class = ModelStark self._registry[model] = stark_class(model, self) # 一级分发url函数 def get_urls(self): temp = [] for model, stark_class_obj in self._registry.items(): model_name = model._meta.model_name app_label = 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)) ''' url(r"^app01/userinfo/",UserConfig(Userinfo).urls_2), url(r"^app01/book/",ModelStark(Book).urls_2), ''' return temp @property def urls(self): return self.get_urls(), None, None # 创建stark的一个单例对象 site = StarkSite()
app01/models.py
from django.db import models # Create your models here. class Author(models.Model): nid = models.AutoField(primary_key=True) name=models.CharField( max_length=32) age=models.IntegerField() # 与AuthorDetail建立一对一的关系 authorDetail=models.OneToOneField(to="AuthorDetail",on_delete=models.CASCADE) def __str__(self): return self.name class AuthorDetail(models.Model): nid = models.AutoField(primary_key=True) birthday=models.DateField(auto_now_add=True) telephone=models.BigIntegerField() addr=models.CharField( max_length=64) def __str__(self): return self.telephone class Publish(models.Model): nid = models.AutoField(primary_key=True) name=models.CharField( max_length=32) city=models.CharField( max_length=32) email=models.EmailField() def __str__(self): return self.name class Book(models.Model): nid = models.AutoField(primary_key=True) title = models.CharField( max_length=32) publishDate=models.DateField() price=models.DecimalField(max_digits=5,decimal_places=2) # 与Publish建立一对多的关系,外键字段建立在多的一方 publish=models.ForeignKey(to="Publish",to_field="nid",on_delete=models.CASCADE) # 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表 authors=models.ManyToManyField(to='Author',) def __str__(self): return self.title
