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Run a single migration file
...ion? I don't want to migrate to a certain version I just want to run a specific one.
11 Answers
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How can I extract all values from a dictionary in Python?
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If you only need the dictionary keys 1, 2, and 3 use: your_dict.keys().
If you only need the dictionary values -0.3246, -0.9185, and -3985 use: your_dict.values().
If you want both keys and values use: your_dict.items() whi...
How do you configure Django for simple development and deployment?
...variably, there are other changes to make to the Django
settings as well: different logging locations / intensities,
media paths, etc.
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What's the most efficient test of whether a PHP string ends with another string?
...r_compare($str, $test, strlen($str)-strlen($test), strlen($test)) === 0;
If $test is longer than $str PHP will give a warning, so you need to check for that first.
function endswith($string, $test) {
$strlen = strlen($string);
$testlen = strlen($test);
if ($testlen > $strlen) retur...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...rray consistently outperforms the version with a presized array. Note that if you can reuse an existing array of the correct size, the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark (n) Mode Samples Score Error Units
c.a...
How does “do something OR DIE()” work in PHP?
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If the first statement returns true, then the entire statement must be true therefore the second part is never executed.
For example:
$x = 5;
true or $x++;
echo $x; // 5
false or $x++;
echo $x; // 6
Therefore, if your q...
How do I read all classes from a Java package in the classpath?
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If you have Spring in you classpath then the following will do it.
Find all classes in a package that are annotated with XmlRootElement:
private List<Class> findMyTypes(String basePackage) throws IOException, ClassNot...
How to apply bindValue method in LIMIT clause?
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would be cool if someone provided the explanation why this is so...from a design/security (or other) standpoint.
– Ross
Sep 25 '12 at 0:23
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How to put a line comment for a multi-line command [duplicate]
...sagree, Marwan's answer is clever but feels like an abuse of substitution. If anything I'd say Philipp's answer is closer to something I'd want to do.
– Alec
Sep 20 '17 at 18:27
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Sequelize, convert entity to plain object
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If I get you right, you want to add the sensors collection to the node. If you have a mapping between both models you can either use the include functionality explained here or the values getter defined on every instance. You...