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How do you write a migration to rename an ActiveRecord model and its table in Rails?
... @mathee: yes, you have to change that manually, or using an IDE that can do Ruby refactoring and commit it to your version control system.
– pupeno
Apr 30 '10 at 9:00
...
How can I change the color of pagination dots of UIPageControl?
... on UIPageControl.
ORIGINAL ANSWER:
I ran into this problem today and decided to write my own simple replacement class.
It's a sublassed UIView that uses Core Graphics to render the dots in the colors you specify.
You use the exposed properties to customize and control it.
If you want to you c...
What is android:weightSum in android, and how does it work?
I want to know: What is android:weightSum and layout weight, and how do they work?
9 Answers
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Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...e keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. There may be some border cases where the size of an index can slow down your queries, but you should not worry ...
int to hex string
...
Try C# string interpolation introduced in C# 6:
var id = 100;
var hexid = $"0x{id:X}";
hexid value:
"0x64"
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What is jQuery Unobtrusive Validation?
I know what the jQuery Validation plugin is. I know the jQuery Unobtrusive Validation library was made by Microsoft and is included in the ASP.NET MVC framework. But I cannot find a single online source that explains what it is. What is the difference between the standard jQuery Validation librar...
How can I prevent the textarea from stretching beyond his parent DIV element? (google-chrome issue o
... {
resize: horizontal;
}
Or you can limit size:
textarea {
max-width: 100px;
max-height: 100px;
}
To limit size to parents width and/or height:
textarea {
max-width: 100%;
max-height: 100%;
}
sha...
What does FrameLayout do?
... placed on top of the ImageView.
For example:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/backgroundIma...
Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]
...on:
it is hard to click on it (you have to be accurate)
it takes time to select it (and a huge amount of time if you are on laptop without a mouse)
it saves you in history
it is accessible via back button / backspace.
And how about the panicking random moves of a woman who is trying to quickly c...
Can Selenium interact with an existing browser session?
...h a regular IEDriver and comunicate with it from other proccesses using a middleware. If you have an idea why the class isn't working on IE I would appreciate it. Thank you.
– Angel Romero
Dec 2 '11 at 11:51
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