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What is causing this ActiveRecord::ReadOnlyRecord error?
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Rails 2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the ...
Asynctask vs Thread in android
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edited Mar 25 '19 at 20:48
ividito
33033 silver badges1313 bronze badges
answered Aug 28 '13 at 5:51...
Android Webview - Webpage should fit the device screen
...calculate the scale that you need to use manually, rather than setting to 30.
private int getScale(){
Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int width = display.getWidth();
Double val = new Double(width)/new Double(PIC_WIDTH);...
Why Large Object Heap and why do we care?
... bunch of benchmarks to determine the break-even point. And arrived at 85,000 bytes as the cutoff point where copying no longer improves perf. With a special exception for arrays of double, they are considered 'large' when the array has more than 1000 elements. That's another optimization for 32-...
How to re-raise an exception in nested try/except blocks?
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edited Jul 20 at 13:45
answered Aug 12 '13 at 13:47
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How can I clear the SQL Server query cache?
I've got a simple query running against SQL Server 2005
5 Answers
5
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What do these words mean in Git: Repository, fork, branch, clone, track?
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twasbrillig
10.4k66 gold badges3636 silver badges5757 bronze badges
answered May 26 '10 at 22:52
nfmnfm
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Array Size (Length) in C#
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b.GetLength(dimensionIndex)
will get the length of any given dimension (0-based indexing for the dimensions - so b.GetLength(0) is 3 and b.GetLength(1) is 5).
See System.Array documentation for more info.
As @Lucero points out in the comments, there is a concept of a "jagged array", which is re...
Teachable Machine 图像分类扩展 · App Inventor 2 中文网
...圣卡塔琳娜联邦大学（UFSC）
最新版本
20250312（2025年3月）
2.0（2022年8月）
许可证
Apache 2.0
BSD 3
输入模式
视频模式 + 图片模式
仅视频模式
前后摄像头
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Java: Class.this
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edited Jul 25 at 14:40
Rarblack
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answered Ap...