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Nested attributes unpermitted parameters
...ection and now you must whitelist params in the controller (instead of attr_accessible in the model) because the former optional gem strong_parameters became part of the Rails Core.
This should look something like this:
class PeopleController < ActionController::Base
def create
Person.cre...
Use StringFormat to add a string to a WPF XAML binding
... number and units isn't fixed. <Run Text="{x:Static s:UIStrings.General_FahrenheitAbbreviation}" />
– Matt Becker
Nov 10 '15 at 15:19
...
Get push notification while App in foreground iOS
... app received push notifications in foreground
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
completionHandler([.alert, .badge, .sound...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...lts.merge(options)
Or, if you're using Rails you can do:
options.reverse_merge!(defaults)
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Initializing a struct to 0
...denia. I disagree. I already know what foo = {0} means. If I saw foo = ZERO_FULL, I'd have to grep for the definition of ZERO_FULL.
– Andrew Bainbridge
Jul 24 '18 at 14:51
...
How do you add an in-app purchase to an iOS application?
... view controller actions. developer.apple.com/library/ios/technotes/tn2387/_index.html
– Craig Pickering
Apr 18 '15 at 9:30
3
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Why are dashes preferred for CSS selectors / HTML attributes?
...ument.querySelector('#first-name');
var firstName = document.forms[0].first_name;
I find the two first options much more preferable, especially since '#first-name' can be replaced with a JavaScript variable and built dynamically. I also find them more pleasant on the eyes.
The fact that Sass enab...
Execute a terminal command from a Cocoa app
...
I want to run this command "system_profiler SPApplicationsDataType -xml" but i am getting this error "launch path not accessible"
– Vikas Bansal
Jul 29 '15 at 12:20
...
Send an Array with an HTTP Get
... single value.
foo[]=value1&foo[]=value2&foo[]=value3
$foo = $_GET["foo"]; // [value1, value2, value3]
echo is_array($foo); // true
In case you still use foo=value1&foo=value2&foo=value3, then it'll return only the first value.
$foo = $_GET["foo"]; // value1
echo is_array($fo...
What is the correct way of using C++11's range-based for?
...t class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(other.m_data)
{ cout << "X copy ctor.\n"; }
X& operator=(const X& other)
...