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Deprecated warning for Rails 4 has_many with order
...s 4, :order has been deprecated and needs to be replaced with lambda scope block as shown in the warning you've posted in the question. Another point to note is that this scope block needs to be passed before any other association options such as dependent: :destroy etc.
Give this a try:
has_m...
How to write trycatch in R
...
R uses functions for implementing try-catch block:
The syntax somewhat looks like this:
result = tryCatch({
expr
}, warning = function(warning_condition) {
warning-handler-code
}, error = function(error_condition) {
error-handler-code
}, finally={
cle...
Change UICollectionViewCell size on different device orientations
... layout and resize the cells with animation (you can just pass nil to both block params if you've no extra adjustments to perform).
2) Instead of hardcoding the item sizes in -collectionView:layout:sizeForItemAtIndexPath, just divide the height or width of the collectionView's bounds by the number ...
Show or hide element in React
...ble - eg. some div is 'display: flex' by default, but you'll set 'display: block' by mistake with display: invisible ? 'block' : 'none' which might break the layout
using someBoolean && <SomeNode /> is very simple to understand and reason about, especially if your logic related to disp...
What Ruby IDE do you prefer? [closed]
...
I tend to use Aptana exclusively for PHP/Ruby development, and standard Eclipse for JAVA, C, C++ etc. This prevents me from dealing with pointless warnings.
– Zee Spencer
Jun 18 '10 at 14:40
...
How to create an HTTPS server in Node.js?
...information came in very handy as I run a node.js tool (PDFJS) on top of a PHP app that was recently forced to run over https. The iframe was very unhappy to load my node.js app on an alternate, non-https port.
– lewsid
Oct 7 '14 at 16:12
...
Should ol/ul be inside or outside?
...ments like span and strong).
The second part says ols are flow content (“block” elements like p and div). So they can't be used inside a p.
ols and other flow content can be used in in some other elements like div:
4.5.13 The div element:
Categories: Flow content, Palpable content.
Content mo...
How to Query an NTP Server using C#?
...{
socket.Connect(ipEndPoint);
//Stops code hang if NTP is blocked
socket.ReceiveTimeout = 3000;
socket.Send(ntpData);
socket.Receive(ntpData);
socket.Close();
}
//Offset to get to the "Transmit Timestamp" field (time at which the reply ...
Script Tag - async & defer
...zed, which it seldom is. And both downloads would share the bandwidth, not block one.—Further: these images show parsing in green, not download.
– Robert Siemer
Mar 30 at 1:00
...
Reusing a PreparedStatement multiple times
...on and the statement in the shortest possible scope inside the same method block according the normal JDBC idiom using try-with-resources statement as shown in above snippets.
If those batches are transactional, then you'd like to turn off autocommit of the connection and only commit the transactio...