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Overriding id on create in ActiveRecord
...; 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to ActiveRecord. ActiveHash allows you to use the same belongs_to semantics in ActiveRecord, but instead of having a migration and creating a table, and incurring the overhead of the database on ...
How to split a large text file into smaller files with equal number of lines?
...ory, be sure to follow LeberMac's advice earlier in the thread about first converting CR (Mac) line endings to LR (Linux) line endings using TextWrangler or BBEdit. I had the exact same problem as you until I found that piece of advice.
– sstringer
Aug 25 '13 a...
How to serialize a TimeSpan to XML
...pan is serializable, the XmlCustomFormatter does not provide methods to convert TimeSpan objects to and from XML.
12 A...
How to save a dictionary to a file?
...n ndarray (doing a type(read_dictionary) reveals so) and .item() basically converts that element to a python scalar object which is a dictionary as stated here
– abhyudayasrinet
Sep 7 '18 at 0:42
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✔ Checkmark selected row in UITableViewCell
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I found that reloading the data interrupts the deselect animation in an ugly way.
This Swift implementation cleanly adds/removes checkmarks and deselects the row:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
...
Get person's age in Ruby
... # or (1.year / 1.day)
You will get a fractional result, so feel free to convert the result to an integer with to_i. This is a better solution because it correctly treats the date difference as a time period measured in days (or seconds in the case of the related Time class) since the event. The...
PHP filesize MB/KB conversion [duplicate]
How can I convert the output of PHP's filesize() function to a nice format with MegaBytes, KiloBytes etc?
12 Answers
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How do I get my Python program to sleep for 50 milliseconds?
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Might be interesting to know though that 'the function [time.sleep(secs)] sleeps at least secs' since Python 3.5 according to the documentation.
– Elias Strehle
Oct 30 '19 at 14:11
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This Row already belongs to another table error when trying to add rows?
...that are the same as in "dt"
DataColumn dcID = new DataColumn("ID", typeof(int));
DataColumn dcName = new DataColumn("Name", typeof(string));
dtSpecificOrders.Columns.Add(dtID);
dtSpecificOrders.Columns.Add(dcName);
DataRow[] orderRows = dt.Select("CustomerID = 2");
foreach (DataRow dr in orderRow...
Java RegEx meta character (.) and ordinary dot?
... case of character classes, place them in positions where they can't be misinterpreted).
Needlessly escaping other characters may work, but some regex engines will treat this as syntax errors, for example \_ will cause an error in .NET.
Some others will lead to false results, for example \< i...