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Flask-SQLAlchemy how to delete all rows in a single table
...Model.id==123).first()
db.session.delete(record_obj)
db.session.commit()
https://flask-sqlalchemy.palletsprojects.com/en/2.x/queries/#deleting-records
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PHP Difference between array() and []
...ely not frowned upon, at least not in 2019.
A good technical breakdown: https://softwareengineering.stackexchange.com/questions/151661/is-it-bad-practice-to-use-tag-in-php
A note in PSR-1: Files MUST use only <?php and <?= tags.
TL;DR: There is no reason you cannot or should not use it.
...
Debugging automatic properties
...
This question is very old but it is worth that it just works in VS 2015.
https://blogs.msdn.microsoft.com/visualstudioalm/2014/11/14/set-breakpoints-on-auto-implemented-properties-with-visual-studio-2015/
class X {
public string name {
set;
get; // setting a breakpoint here will break i...
Can functions be passed as parameters?
...string { return "" })
}
Play: http://play.golang.org/p/XNMtrDUDS0
Tour: https://tour.golang.org/moretypes/25 (Function Closures)
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Unable to forward search Bash history similarly as with CTRL-r
...
You may want to try https://github.com/dvorka/hstr which allows for "suggest box style" filtering of Bash history with (optional) metrics based ordering i.e. it is much more efficient and faster in both forward and backward directions:
It can...
Is there an equivalent to background-size: cover and contain for image elements?
...h1>
<div class="container contain">
<img
src="https://www.google.de/logos/doodles/2014/european-parliament-election-2014-day-4-5483168891142144-hp.jpg"
/>
<!-- 366x200 -->
</div>
<h1>cover</h1>
<div class="container co...
Mounting multiple volumes on a docker container?
...ts are also explained in detail in the current Docker documentation.
From: https://docs.docker.com/storage/bind-mounts/
$ docker run -d \
-it \
--name devtest \
--mount type=bind,source="$(pwd)"/target,target=/app \
--mount type=bind,source="$(pwd)"/target,target=/app2,readonly,bind-propagat...
The 'packages' element is not declared
...find a copy of the nuspec.xsd here as it seems to no longer be available:
https://gist.github.com/sharwell/6131243
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What is the difference between MediaPlayer and VideoView in Android
...eView to provide embedded controls.
He also kindly shared some examples:
https://github.com/commonsguy/cw-advandroid/blob/master/Media/Video/src/com/commonsware/android/video/VideoDemo.java
https://github.com/commonsguy/vidtry/blob/master/src/com/commonsware/android/vidtry/Player.java
and exampl...
How to use WPF Background Worker
... in .net 4.5 use Task for threading. Here is some documentation about Task
https://docs.microsoft.com/en-us/dotnet/api/system.threading.tasks.task
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