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find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Python - 'ascii' codec can't decode byte
I'm really confused. I tried to encode but the error said can't decode... .
7 Answers
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Two divs, one fixed width, the other, the rest
...;/div>
CSS:
.left {
overflow: hidden;
min-height: 50px;
border: 2px dashed #f0f;
}
.right {
float: right;
width: 250px;
min-height: 50px;
margin-left: 10px;
border: 2px dashed #00f;
}
You can also do it with display: table, which is usually a better approac...
Is there an easy way to request a URL in python and NOT follow redirects?
... Looks wrong... This code does actually follow the redirects (by calling the original handler, thus issuing an HTTP request), and then raise an exception
– Carles Barrobés
Mar 18 '11 at 12:40
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How to ignore deprecation warnings in Python
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This doesn't work for me at all, still seeing deprecationwarnings.
– user1244215
Oct 22 '13 at 0:43
9
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Get an OutputStream into a String
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I would use a ByteArrayOutputStream. And on finish you can call:
new String( baos.toByteArray(), codepage );
or better:
baos.toString( codepage );
For the String constructor, the codepage can be a String or an instance of java.nio.charset.Charset. A possible value is java.nio.ch...
Custom exception type
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This will not allow you stack traces unless you inherit from Error
– Luke H
Jul 30 '14 at 19:53
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How do I get started with Node.js [closed]
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Are the books ordered by your value in them or randomly? Looking to purchase a good reference manual on nodeJS's basics.
– David
May 17 '11 at 15:11
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System.IO.Packaging
...the docs for any of the actual methods/objects/etc. in the namespace, they all say "Assembly: WindowBase.dll"
– dlev
Aug 31 '11 at 16:39
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Programmatically set the initial view controller using Storyboards
How do I programmatically set the InitialViewController for a Storyboard? I want to open my storyboard to a different view depending on some condition which may vary from launch to launch.
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