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Can someone explain collection_select to me in clear, simple terms?
... # field namespace
:author_id, # field name
# result of these two params will be: <select name="post[author_id]">...
# then you should specify some collection or array of rows.
# It can be Author.where(..).order(..) or something like that.
# In your example it is:
Au...
What is the difference between a .xib file and a .storyboard?
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Apple introduced the concept of "storyboarding" in iOS5 SDK to simplify and better manage screens in your app. You can still use the .xib way of development.
Pre-storyboard, each UIViewController had an associated .xib with it. Storyboard achieves two things:
.storyboard ...
Types in Objective-C on iOS
I want to ask about the fundamental data types in Objective-C on iOS.
3 Answers
3
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How to refer environment variable in POM.xml?
...ng the variable. What worked was passing the variable in as a command-line parameter in Maven. Here's the setup:
Set the variable in the shell script. If you're launching Maven in a sub-script, make sure the variable is getting set, e.g. using source ./maven_script.sh to call it from the parent sc...
What is simplest way to read a file into String? [duplicate]
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Yes, you can do this in one line (though for robust IOException handling you wouldn't want to).
String content = new Scanner(new File("filename")).useDelimiter("\\Z").next();
System.out.println(content);
This uses a java.util.Scanner, telling it to delimit the input with \Z...
Seeking useful Eclipse Java code templates [closed]
You can create various Java code templates in Eclipse via
46 Answers
46
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PHP parse/syntax errors; and how to solve them
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$var = array("1" => $val, $val2, $val3 $val4);
Or functions parameter lists:
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function myfunc($param1, $param2 $param3, $param4)
Equivalently do you see this with list or global statements, or when lacking a ; semicolon in a for loop.
Class decla...
How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
...is.
See this link for some VBS way to do this.
https://superuser.com/questions/201371/create-zip-folder-from-the-command-line-windows
From Windows 8 on, .NET Framework 4.5 is installed by default, with System.IO.Compression.ZipArchive and PowerShell available, one can write scripts to achieve this...
How to dismiss keyboard iOS programmatically when pressing return
...lf, then you've probably not added UITextFieldDelegate to the class definition. Specifically ... class ViewController: UIViewController, UITextFieldDelegate { ...
– TimWhiting
Jul 6 '15 at 18:49
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Can I embed a custom font in an iPhone application?
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iOS 3.2 and later support this. Straight from the What's New in iPhone OS 3.2 doc:
Custom Font Support
Applications that want to use custom fonts can now include those fonts in their application bundle and register thos...