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Too much data with var_dump in symfony2 doctrine2
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With Symfony 2.6 you can now just use dump($var) in your controller and {{ dump(var) }} in twig.
Make sure to add this to your AppKernal.php file, in the array('dev', 'test') section.
$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
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How do I (or can I) SELECT DISTINCT on multiple columns?
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This query, while correct and being accepted for year now, is extremely inefficient and unnecessarily so. Don't use this. I provided an alternative and some explanation in another answer.
– Erwin Brandstetter
Sep 30 '12 at 20:45
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What is the purpose of the -nodes argument in openssl?
...ay to use the encrypted key is to decrypt it first, for which you need to know the password it was encrypted with to generate the same key.
– indiv
Apr 12 '13 at 14:42
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“Items collection must be empty before using ItemsSource.”
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Armentage... you just saved me I don't know how many hours of looking for this!!! Thanks so much for posting this... voting up!
– John Fairbanks
Aug 3 '14 at 22:23
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How does Junit @Rule work?
I want to write test cases for a bulk of code, I would like to know details of JUnit @Rule annotation feature, so that I can use it for writing test cases. Please provide some good answers or links, which give detailed description of its functionality through a simple example.
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Cannot install node modules that require compilation on Windows 7 x64/VS2012
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This walkthrough is the best up til now. Nontheless, all this base64 problem is totally unnecessary and annoying!
– Benedikt
Jul 22 '14 at 10:19
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Unknown Column In Where Clause
...tcount
FROM nodes
WHERE attachmentcount > 0;
You'll get an error "Unknown column 'attachmentcount' in WHERE clause".
Solution is actually fairly simple - just replace the alias with the statement which produces the alias, eg:
SELECT nodes.*, (SELECT (COUNT(*) FROM attachments
WHERE attachme...
right click context menu for datagridview
...rom your grid, such as the ID. Store the ID as the menu event's tag item.
Now, when user actually clicks your menu item, use the Sender property to fetch the tag. Use the tag, containing your ID, to perform the action you need.
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Javascript set img src
...appendChild(image);
REMARK: One point is that Javascript community right now encourages developers to use document selectors such as querySelector, getElementById and getElementsByClassName rather than document["pic1"].
sh...
When should I use Arrow functions in ECMAScript 6?
...a mid-sized AngularJS app) to JavaScript compiled using Traceur Babel. I'm now using the following rule of thumb for functions in ES6 and beyond:
Use function in the global scope and for Object.prototype properties.
Use class for object constructors.
Use => everywhere else.
Why use arrow func...