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form_for with nested resources
...ted in controller: @post and @comment for the post, eg:
@post = Post.find params[:post_id]
@comment = Comment.new(:post=>@post)
Then in view:
<%= form_for([@post, @comment]) do |f| %>
Be sure to explicitly define the array in the form_for, not just comma separated like you have above....
How to make UIButton's text alignment center? Using IB
...e-C:
[myButton.titleLabel setTextAlignment:UITextAlignmentCenter];
For iOS 6 or higher it's
[myButton.titleLabel setTextAlignment: NSTextAlignmentCenter];
as explained in tyler53's answer
Swift:
myButton.titleLabel?.textAlignment = NSTextAlignment.Center
Swift 4.x and above
myButton.ti...
Read binary file as string in Ruby
...ith so many people looking this up and copy pasting it as a one-liner solution (like so many things on stackoverflow)? After all, it works, and the name for these functions were just an arbitrary choice of the ruby library designers. If only we had some language with synonyms... that still somehow k...
Copy folder recursively in node.js
...equire("fs")
const path = require("path")
/**
* Look ma, it's cp -R.
* @param {string} src The path to the thing to copy.
* @param {string} dest The path to the new copy.
*/
var copyRecursiveSync = function(src, dest) {
var exists = fs.existsSync(src);
var stats = exists && fs.statS...
Capitalize words in string [duplicate]
...
/**
* Capitalizes first letters of words in string.
* @param {string} str String to be modified
* @param {boolean=false} lower Whether all other letters should be lowercased
* @return {string}
* @usage
* capitalize('fix this string'); // -> 'Fix This String'
* cap...
setImmediate vs. nextTick
Node.js version 0.10 was released today and introduced setImmediate . The API changes documentation suggests using it when doing recursive nextTick calls.
...
iOS - Calling App Delegate method from ViewController
...e) and have it call up a different view controller then have it run a function in the new view controller.
13 Answers
...
How can I efficiently download a large file using Go?
...ownload via http (error checks omitted for brevity):
import ("net/http"; "io"; "os")
...
out, err := os.Create("output.txt")
defer out.Close()
...
resp, err := http.Get("http://example.com/")
defer resp.Body.Close()
...
n, err := io.Copy(out, resp.Body)
The http.Response's Body is a Reader, so yo...
How to check type of files without extensions in python?
...9db0e31f9dfc11cf47') # You can pass a file name or a file object as first param. See doc for optional 2nd param.
'png'
Python 2 imghdr doc
Python 3 imghdr doc
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Is there a documented way to set the iPhone orientation?
I have an app where I would like to support device rotation in certain views but other don't particularly make sense in Landscape mode, so as I swapping the views out I would like to force the rotation to be set to portrait.
...