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Popup popup box is bound to add data event (detailed step-by-step explanation)
Popup popup box is bound to add data event (detailed step-by-step explanation)
This time I will bring you the Popup pop-up box binding to add data events (detailed step-by-step explanation). What are the precautions for Popup pop-up box binding to add data events. The following is a practical case, let’s take a look. take a look.
logic
A set of data is displayed in window P1, and an add button is provided.
Click the button, and a new browser window P2 will pop up. After adding a piece of data and submitting it, window P2 will automatically close
Newly added data is dynamically added to the window and was selected in P1
Required knowledge: JS BOM window object; JS self-executing function
accomplish
The following is a simple implementation in Django. Because it is relatively simple, routing and views are written together.
1. Routing and view part
from django.conf.urls import url
from django.shortcuts import render
def p1(request):
return render(request, 'p1.html')
def p2(request):
if request.method == 'GET':
return render(request, 'p2.html')
elif request.method == 'POST':
city = request.POST.get('city')
print('执行数据保存操作...')
return render(request, 'popup.html',{'city':city})
urlpatterns = [
url(r'^p1.html/', p1),
url(r'^p2.html/', p2),
]2. Access view p1 and return to page p1.html:
<head>
<meta charset="UTF-8">
<title>p1页面</title>
</head>
<body>
<h2>p1页面</h2>
<select id="cityChoose">
<option>上海</option>
<option>北京</option>
</select>
<input type="button" value="添加" onclick="popupFunc();"/>
<script>
popupFunc = function () {
window.open('/p2.html/', 'p2', "status=1, height:300, width:300, toolbar=0, resizeable=1")
//open(url, name, 窗口参数)，注意name不能重名
};
callback = function (city) {
var opt = document.createElement('option');
opt.innerText = city;
opt.setAttribute('selected', 'selected');
var selEle = document.getElementById('cityChoose');
selEle.appendChild(opt);
}
</script>
</body>illustrate:
1. Click the Add button and execute popupFunc: visit '/p2.html/' and open the page p2.html in a new window
2. Define callback functioncallback: it receives a parameter city, Dynamically add it to the dropdown option and set it to selected state.
3. p2.html is displayed in the pop-up window as follows:
<head>
<meta charset="UTF-8">
<title>p2页面</title>
</head>
<body>
<h2>p2页面</h2>
<form method="post">
{% csrf_token %}
<input type="text" name="city">
<input type="submit" value="提交">
</form>
</body>Note: The action=url parameter of the form form is not specified here. After the user enters the data, it will be submitted to the current address by default, that is, '/p2.html/', and submitted to the view p2
4. After view p2 receives the submitted data, it passes in the template and returns the page popup.html:
<head>
<meta charset="UTF-8">
<title>正在返回</title>
</head>
<body>
<script>
(function (city) {
window.opener.callback(city);
window.close();
})("{{ city }}")
</script>
</body>illustrate:
The JS self-executing function is defined here: it calls the callback function in the window that opens the pop-up window (that is, the callback in P1), and passes in the user input data as a parameter; it closes itself.
- If the p2 view returns error message, it can also be displayed in popup.html (omitted).
- For self-executing functions, please refer to JavaScript Self-executing functions and jQuery extension methods
I believe you have read this article You have mastered the case method. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
Recommended reading:
How to use JS self-executing functions and jQuery extensions
Detailed explanation of using Require to call js
Detailed explanation of the steps for setting header information in the vue-resource interceptor
The above is the detailed content of Popup popup box is bound to add data event (detailed step-by-step explanation). For more information, please follow other related articles on the PHP Chinese website!
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