未加星标

JavaScript Widget Development With Django

字体大小 | |
[前端(javascript) 所属分类 前端(javascript) | 发布者 店小二03 | 时间 2016 | 作者 红领巾 ] 0人收藏点击收藏

Creating custom Django Widgets is useful for simplifying more advanced fields in our forms. The end user doesn't have to worry about including javascript or CSS into the Template as they are inserted by Django in the form.

Creating the Widget

Django offers an array of great widgets to extend functionality from. We are going to choose the simple TextInput widget or when rendered:

<input type="text"/>

To extend a Widget simply create a class and inherit from the widget like so:

from django import forms class DateUIWidget(forms.TextInput): class Media: # js/css to be inserted into the DOM # uses static url to fetch css = { "all": ("tiny-date-picker.css", ) } js = ("tiny-date-picker.js", "date-init.js", )

The Media Class inside the DateUIWidget is way of declaring what CSS and JS files should be inserted into the Template on form render.

Django's ModelForm offer a very simple way in order to swap field widgets via the widgets property:

class BirthdayForm(forms.ModelForm): class Meta: model = Birthday fields = ["birthday"] # fields widgets = { "birthday": DateUIWidget() # custom widget } Writing Widget Specific JavaScript

Django offers a very simple way in order to differentiate our widgets from Django's own. This is done by adding the Widget Class's name to our field's class attribute.

Example:

class DateUIWidget(forms.TextInput): ... <input type="text" class="dateuiwidget" id="id_birthday" />

Now that we can target all our DateUIWidget fields we can initialise them on form render. I am using the Tiny Date Picker as the UI for the Widget.

In date-init.js:

$(".dateuiwidget").each(function(){ return TinyDatePicker(this); });

With our JavaScript setup we can add the media to our Template:

<form action="" method="post"> {{ form.as_p }} <!-- Render the form --> <input type="submit" /> </form> {{ form.media }} <!-- JS and CSS files -->

The result of this short setup is a reusable Date Field for our forms. That reduces the need to copy and paste scripts from other pages by letting Django handle everything.

本文前端(javascript)相关术语:javascript是什么意思 javascript下载 javascript权威指南 javascript基础教程 javascript 正则表达式 javascript设计模式 javascript高级程序设计 精通javascript javascript教程

主题: DjangoJavaScriptJavaCSS
分页:12
转载请注明
本文标题:JavaScript Widget Development With Django
本站链接:http://www.codesec.net/view/482572.html
分享请点击:


1.凡CodeSecTeam转载的文章,均出自其它媒体或其他官网介绍,目的在于传递更多的信息,并不代表本站赞同其观点和其真实性负责;
2.转载的文章仅代表原创作者观点,与本站无关。其原创性以及文中陈述文字和内容未经本站证实,本站对该文以及其中全部或者部分内容、文字的真实性、完整性、及时性,不作出任何保证或承若;
3.如本站转载稿涉及版权等问题,请作者及时联系本站,我们会及时处理。
登录后可拥有收藏文章、关注作者等权限...
技术大类 技术大类 | 前端(javascript) | 评论(0) | 阅读(22)