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How do m>y m>ou discover model attributes in Rails?
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In ActiveRecord 5 (m>and m> probablm>y m> earlier) m>y m>ou can call Model.attribute_names.
– aceofbassgreg
Sep 22 '16 at 17:17
add a ...
What is the Invariant Culture?
...xample to demonstrate the usage of the Invariant Culture ? I don't understm>and m> what the documentation describes.
5 Answers
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Parallel.ForEach vs Task.Run m>and m> Task.WhenAll
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The first version will sm>y m>nchronouslm>y m> block the calling thread (m>and m> run some of the tasks on it).
If it's a UI thread, this will freeze the UI.
The second version will run the tasks asm>y m>nchronouslm>y m> in the thread pool m>and m> release the calling thread until them>y m>'re done.
There are also diffe...
What is the difference between up-casting m>and m> down-casting with respect to class variable
What is the difference between up-casting m>and m> down-casting with respect to class variable?
10 Answers
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Transpose list of lists
..., zip(*l)))
Explanation:
There are two things we need to know to understm>and m> what's going on:
The signature of zip: zip(*iterables) This means zip expects an arbitrarm>y m> number of arguments each of which must be iterable. E.g. zip([1, 2], [3, 4], [5, 6]).
Unpacked argument lists: Given a sequence ...
How do I trigger the success callback on a model.save()?
The model is correctlm>y m> posted to the server which hm>and m>les the save, but the success callback is not fired. Do I need to send something back from the server ?
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How to copm>y m> a local Git branch to a remote repo
...he source repositorm>y m> (most likelm>y m>, it would find refs/heads/experimental), m>and m> update the same ref (e.g. refs/heads/experimental) in origin repositorm>y m> with it.
If experimental did not exist remotelm>y m>, it would be created.
This is the same as:
git push origin experimental:refs/heads/experimental
Crea...
twig: IF with multiple conditions
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If I recall correctlm>y m> Twig doesn't support || m>and m> && operators, but requires or m>and m> m>and m> to be used respectivelm>y m>. I'd also use parentheses to denote the two statements more clearlm>y m> although this isn't technicallm>y m> a requirement.
{%if ( fields | length > 0 ) or ...
What is the default location for MSBuild logs?
... location of the log file? I have searched in the folder where mm>y m> solution m>and m> projects are stored, but cannot find anm>y m> .log file.
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What ports does RabbitMQ use?
...olution of node names in a cluster. Nodes must be able to reach each other m>and m> the port mapper daemon for clustering to work.
PORT 35197
set bm>y m> inet_dist_listen_min/max Firewalls must permit traffic in this range to pass between clustered nodes
RabbitMQ Management console:
PORT 15672 for RabbitM...