A distinction, functions and methods
1, manual transmission function to self, do not pass method
2, if it is a function with the class name to call, if the amount is a method, with the object to call
for example:
class Foo(object): def __init__(self): self.name="haiyan" def func(self): print(self.name) obj = Foo() obj.func() Foo.func(obj)
Mode determination functions and methods
from types Import FunctionType, MethodType obj = Foo () Print (the isinstance (obj.func, FunctionType)) # False Print (the isinstance (obj.func, MethodType)) # True # Description This is a method Print (the isinstance (Foo.func , FunctionType)) # True # Description this is a function. Print (isinstance (Foo.func, MethodType)) # False
Two, js and jquery bind event in several ways
Third, create a table of limit_choices_to parameters
limit_choices_to: blocking certain options, only some of the options specified. The following example, only allow the display department id is 1001
consultant = models.ForeignKey(verbose_name="课程顾问", to='UserInfo', related_name='consultant',limit_choices_to={'depart_id':1001})
Four differences, include and inclusion_tag of
Both are handling code redundant, due to other pages will have this function, but also to use, we can now pick it up, creating folders to write into it. Import come
If you use include, inside of which was from the back-end data transfer,
if inclusion_tag, what will help you return to what we preach, it has both its own function, but also include functions, and can process data
include the use
<body> <h3>添加页面</h3> {% include "stark/form.html" %} {#<form action="">#} {# {{ form }}#} {#</form>#}
SUMMARY form corresponding to the form as noted below #include introduced
inclusion_tag use
1, templatetags create a folder, create a file inside change_form.py, write code in it, you need to add
@ Register.inclusion_tag this decorator
#!usr/bin/env python # -*- coding:utf-8 -*- from django.template import Library from django.urls import reverse from stark.service.v1 import site register = Library() @register.inclusion_tag("stark/form.html") def form(model_form_obj): from django.forms import ModelChoiceField from django.forms.boundfield import BoundField # 数据都封装在这个类了 new_form =[] For bfield in model_form_obj: DIC = { " is_popup " : False, " Item " : bfield} # Each Form is bfield field, an object IF the isinstance (bfield.field, for ModelChoiceField): # Print (bfield.field , "popup button") Print (bfield, type (bfield)) # <class 'django.forms.boundfield.BoundField'> releated_model_name = bfield.field.queryset.model # found associated class name app_model_name = releated_model_name._meta.app_label , releated_model_name._meta.model_name #Find the application name and class name (the purpose of splicing url) base_url = Reverse ( " Stark:% s_% S_ADD " % (app_model_name)) popup_url = " % S _popupbackid =% S? " % (Base_url, bfield.auto_id) # each input box ID Print (bfield.auto_id, " 111111 " ) DIC [ " is_popup " ] = True DIC [ " popup_url " ] = popup_url new_form.append (DIC) return { " form " : new_form} # Returned this form is to give a "stark / form.html" it inside the form, and then loop through
3, using
{% load change_form %}
<body>
<h3>编辑页面</h3>
{% form form %}
</body>
4、stark/form.html
<form method="post" class="form-horizontal" novalidate> {% csrf_token %} {% for dic in form %} <div class="col-sm-6"> <div class="form-group"> <label for="inputEmail3" class="col-sm-2 control-label">{{ dic.item.label }}</label> <div class="col-sm-10" style="position: relative"> {{ dic.item }} {% if dic.is_popup %} <div style="position: absolute;right: -5px;top: 8px;z-index: 9999"> <a onclick="popUp('{{ dic.popup_url }}')" class="glyphicon glyphicon-plus"></a> <!- Note that in quotes, otherwise it will be treated as variables -> </ div> { # If the judgment is yes MOdelChoicesField #} Fk is { # If the judgment is yes MOdelChoicesField #} Fk is {% endif% } {} {} dic.item.errors.0 </ div> </ div> </ div> { % endfor% } <div class = " COL-offset-SM-SM--COL. 1. 11 " > <INPUT type = " Submit " class = " BTN-BTN Primary " value="提交"> </div> </form> <script> function popupCallback(data) { var op = document.createElement("option"); op.value = data.id; op.text = data.text; op.setAttribute("selected","selected"); document.getElementById(data.popupbackid).appendChild(op) } function popUp(url) { var popupPage = window.open(url, url, "status=1, height:500, width:600, toolbar=0, resizeable=0"); } </script>
A distinction, functions and methods
1, manual transmission function to self, do not pass method
2, if it is a function with the class name to call, if the amount is a method, with the object to call
for example:
class Foo(object): def __init__(self): self.name="haiyan" def func(self): print(self.name) obj = Foo() obj.func() Foo.func(obj)
Mode determination functions and methods
from types import FunctionType,MethodType obj = Foo() print(isinstance(obj.func,FunctionType)) #False print(isinstance(obj.func,MethodType)) #True #说明这是一个方法 print(isinstance(Foo.func,FunctionType)) #True #说明这是一个函数。 print(isinstance(Foo.func,MethodType)) #False
二、js和jquery绑定事件的几种方式
三、创建表的一个limit_choices_to参数
limit_choices_to：屏蔽某些选项，只显示某些指定的选项。例如下面的，只让显示部门id是1001的
consultant = models.ForeignKey(verbose_name="课程顾问", to='UserInfo', related_name='consultant',limit_choices_to={'depart_id':1001})
四、include和inclusion_tag的区别
这两个都是处理代码冗余的，由于其他的页面也会有这样的功能，也要用到，我们可以吧它摘出来，在创建个文件夹写进去。导入进来
如果用include，这里面的数据得从后端传，
如果用inclusion_tag，你返回啥就会帮我们传啥，它既有自己的功能，也有include的功能，又可以处理数据
include的使用
<body> <h3>添加页面</h3> {% include "stark/form.html" %} {#<form action="">#} {# {{ form }}#} {#</form>#}
#include导入的相当于下面注释的form表单的内容
inclusion_tag的使用
1、创建一个templatetags的文件夹，在里面创建一个change_form.py的文件，在里面写代码，需要加上
@register.inclusion_tag这个装饰器
#!usr/bin/env python # -*- coding:utf-8 -*- from django.template import Library from django.urls import reverse from stark.service.v1 import site register = Library() @register.inclusion_tag("stark/form.html") def form(model_form_obj): from django.forms import ModelChoiceField from django.forms.boundfield import BoundField # 数据都封装在这个类了 new_form = [] for bfield in model_form_obj: dic = {"is_popup": False, "item": bfield} # 每一个bfield就是Form的字段，是一个对象 if isinstance(bfield.field, ModelChoiceField): # print(bfield.field,"popup按钮") print(bfield, type(bfield)) # <class 'django.forms.boundfield.BoundField'> releated_model_name = bfield.field.queryset.model # 找到关联的类名 app_model_name = releated_model_name._meta.app_label, releated_model_name._meta.model_name # 找到应用名和类名（目的是拼接url） base_url = reverse("stark:%s_%s_add" % (app_model_name)) popup_url = "%s?_popupbackid=%s" % (base_url, bfield.auto_id) #每一个input框的id print(bfield.auto_id,"111111") dic["is_popup"] = True dic["popup_url"] = popup_url new_form.append(dic) return {"form":new_form} #返回的这个form是给了"stark/form.html"它里面的form,然后循环遍历
3、使用
{% load change_form %}
<body>
<h3>编辑页面</h3>
{% form form %}
</body>
4、stark/form.html
<form method="post" class="form-horizontal" novalidate> {% csrf_token %} {% for dic in form %} <div class="col-sm-6"> <div class="form-group"> <label for="inputEmail3" class="col-sm-2 control-label">{{ dic.item.label }}</label> <div class="col-sm-10" style="position: relative"> {{ dic.item }} {% if dic.is_popup %} <div style="position: absolute;right: -5px;top: 8px;z-index: 9999"> <a onclick="popUp('{{ dic.popup_url }}')" class="glyphicon glyphicon-plus"></a> <!--注意要加引号，不然就会被当成变量了--> </div> {# 判断如果是MOdelChoicesField是Fk#} {# 判断如果是MOdelChoicesField是Fk#} {% endif %} {{ dic.item.errors.0 }} </div> </div> </div> {% endfor %} <div class="col-sm-offset-11 col-sm-1"> <input type="submit" class="btn btn-primary" value="提交"> </div> </form> <script> function popupCallback(data) { var op = document.createElement("option"); op.value = data.id; op.text = data.text; op.setAttribute("selected","selected"); document.getElementById(data.popupbackid).appendChild(op) } function popUp(url) { var popupPage = window.open(url, url, "status=1, height:500, width:600, toolbar=0, resizeable=0"); } </script>