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How to remove all of the data in a table using Django
...
1) For Deleting the table:
python manage.py dbshell
>> DROP TABLE {app_name}_{model_name}
2) For removing all data from table:
python manage.py shell
>> from {app_name}.models import {model_name}
>> {model_name}.objects.all().delete()
...
AngularJS: Service vs provider vs factory
...emo
" Hello world " example with factory / service / provider:
var myApp = angular.module('myApp', []);
//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
this.sayHello = function() {
return "Hello, World!";
};
});
//factor...
How to get a URL parameter in Express?
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Express 4.x
To get a URL parameter's value, use req.params
app.get('/p/:tagId', function(req, res) {
res.send("tagId is set to " + req.params.tagId);
});
// GET /p/5
// tagId is set to 5
If you want to get a query parameter ?tagId=5, then use req.query
app.get('/p', function(re...
How to integrate nodeJS + Socket.IO and PHP?
... nodeJS is still quite new, and it can be kind of tricky to develop a full application only with it. Moreover, you may need it only for one module of your project, like realtime notifications, chat, ... And you want to manage all the other stuff with PHP, because it is probably more easy for you (an...
Live character count for EditText
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You can do character counting from xml itself using TextInputLayout wrapper for EditText introduced in SupportLibrary v23.1
Just wrap your EditText with a TextInputLayout and set CounterEnabled to true and Set a counterMaxLength.
<android.support.design.widget.TextInputLayout
android:i...
What does 'require: false' in Gemfile mean?
...d-on. This particular rake task requires certain gems that the rest of the application doensn't need. So I :require => false these particular gems and explicitly require "thegem" from the rake task. This would then save memory in the main app processes and startup time etc. App performance, howev...
Yes/No message box using QMessageBox
...uestion for that.
Example in a hypothetical widget's slot:
#include <QApplication>
#include <QMessageBox>
#include <QDebug>
// ...
void MyWidget::someSlot() {
QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "Test", "Quit?",
...
Xcode gave strange newsstand-error when trying to submit an app
finaly everything works fine and I want to submit my first app the the Appstore. But when I click submit in Xcode 4.1 I get this strange error message:
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界面画质问题 - App应用开发 - 清泛IT社区，为创新赋能！
...能否提供一下具体的截图，分辨率降低表现是什么？谢谢App Inventor 2 发表于 2024-07-27 15:09
能否提供一下具体的截图，分辨率降低表现是什么？谢谢
三个见面对比 原图的分辨率是 1080*2220
拍照时报错求助！ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...会报错，然后程序死机谷歌没有任何相关报错信息资料。AppInventor源码整个没有这个报错信息。
大概率是你程序中自己报的错误信息。你先看下代码块，相关地方的代码截图看看。App Inventor 2 发表于 2025-04-29 22:27
谷歌...