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Reading header data in Ruby on Rails
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Rails now attaches HTTP_ to the header as well as converting it to all caps so it would now be:
request.headers["HTTP_CONTENT_TYPE"]
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What is a stored procedure?
...ct based on the primary key, that means each table will have 4 procedures. Now take a decent size database of 400 tables, and you have 1600 procedures! And that's assuming you don't have duplicates which you probably will.
This is where using an ORM or some other method to auto generate your basic ...
Initialising mock objects - MockIto
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There is now (as of v1.10.7) a fourth way to instantiate mocks, which is using a JUnit4 rule called MockitoRule.
@RunWith(JUnit4.class) // or a different runner of your choice
public class YourTest
@Rule public MockitoRule rule =...
How can I find unused images and CSS styles in a website? [closed]
...>Audits->Remove unused CSS rules
Screenshot:
Update: 30 Jun, 2017
Now Chrome 59 provides CSS and JS code coverage. See https://developers.google.com/web/updates/2017/04/devtools-release-notes#coverage
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C# DateTime to UTC Time without changing the time
...11 4:08:40 PM Local
6/1/2011 4:08:40 PM Utc
from
DateTime dt = DateTime.Now;
Console.WriteLine("{0} {1}", dt, dt.Kind);
DateTime ut = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
Console.WriteLine("{0} {1}", ut, ut.Kind);
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...nting MERGE was made in 2005, but there's no progress or plan as far as I know. bugs.mysql.com/bug.php?id=9018
– Bill Karwin
Jul 16 '12 at 2:23
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Providing a default value for an Optional in Swift?
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Update
Apple has now added a coalescing operator:
var unwrappedValue = optionalValue ?? defaultValue
The ternary operator is your friend in this case
var unwrappedValue = optionalValue ? optionalValue! : defaultValue
You could also pr...
How to refresh Android listview?
... was keeping the array in memory for certain feature reasons. To fix it I now call adapter.clear(), and adapter.addAll(Array<T>) before calling notifyDataSetChanged()
– Michael DePhillips
Feb 26 '14 at 23:09
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How do I view an older version of an SVN file?
I have an SVN file which is now missing some logic and so I need to go back about 40 revisions to the time when it had the logic I need. Other than trying to view a diff of the file in the command line ( very hard to read ), is there any way I could get a copy of that file to review so I can study i...
How to delete an item in a list if it exists?
... in iterable if item] if the first argument is None); in Python 3.x, it is now equivalent to (item for item in iterable if function(item)). The subtle difference is that filter used to return a list, now it works like a generator expression - this is OK if you are only iterating over the cleaned lis...