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Is there any Rails function to check if a partial exists?
...about what that boolean is -- :partial is truthy. Thanks for the _prefixes bit, @Flackou!
– pdobb
Dec 20 '13 at 20:31
...
How to var_dump variables in twig templates?
...
So I got it working, partly a bit hackish:
Set twig: debug: 1 in app/config/config.yml
Add this to config_dev.yml
services:
debug.twig.extension:
class: Twig_Extensions_Extension_Debug
tags: [{ name: 'twig.extension' }]
sudo rm -fr...
How to turn on (literally) ALL of GCC's warnings?
... would include -Wdouble-promotion which is only relevant on CPUs with a 32-bit single-precision floating-point unit which implements float in hardware, but emulates double in software. Doing calculations as double would use the software emulation and be slower. That's relevant for some embedded CP...
TypeError: 'NoneType' object is not iterable in Python
...y stuff
return1, return2, return3 = foo(dict_of_dicts)
This is a little bit of a tough error to spot because the error can also be produced if the row variable happens to be None on one of the iterations. The way to spot it is that the trace fails on the last line and not inside the function.
If...
Should import statements always be at the top of a module?
...l the method is called.
Added Note: In IronPython, imports can be quite a bit more expensive than in CPython because the code is basically being compiled as it's being imported.
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Where and how is the _ViewStart.cshtml layout file linked?
...ride the Layout property or any of its values.
Just thought I might add a bit more info to show you why it is _ViewStart.
If you get ILSpy and examine the code in the RazorViewEngine (System.Web.Mvc.dll ) you will see that the code itself references that name.
You can see that the RazorViewEngi...
LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface
...Interface-based queries and still maintain the collection as IQueryable. A bit annoying however that there is basically no way of thinking up this fix, without knowing the inner workings of EF.
– Anders
Dec 9 '16 at 10:56
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Add new field to every document in a MongoDB collection
...or Mongo versions prior to 2.2. For latest versions the query is changed a bit
db.your_collection.update({},
{$set : {"new_field":1}},
{upsert:false,
multi:true})
...
How do I format a date in Jinja2?
... More code to write = more code to be maintained = more code to be parsed, bit-cached (if used) and interpreted. One of the big advantages of using Jinja2 is the ability of writing small python code inside the template. Some of the performance gains, compared to Django's template system, comes from ...
PDO closing connection
...but that is not the truth for mysql. The connection will stay around for a bit longer (Ive heard 60s, but never tested it)
If you want to here the full explanation see this comment on the connections https://www.php.net/manual/en/pdo.connections.php#114822
To force the close the connection you hav...