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Django rest framework nested self-referential objects
...ution works but the count output of my serializer is wrong. It only counts root nodes. Any ideas? It's the same with djangorestframework-recursive.
– Lucas Veiga
May 3 '17 at 1:29
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Making Python loggers output all messages to stdout in addition to log file
...tput is handled by the handlers; just add a logging.StreamHandler() to the root logger.
Here's an example configuring a stream handler (using stdout instead of the default stderr) and adding it to the root logger:
import logging
import sys
root = logging.getLogger()
root.setLevel(logging.DEBUG)
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SQL Group By with an Order By
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In all versions of MySQL, simply alias the aggregate in the SELECT list, and order by the alias:
SELECT COUNT(id) AS theCount, `Tag` from `images-tags`
GROUP BY `Tag`
ORDER BY theCount DESC
LIMIT 20
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Difference between scaling horizontally and vertically for databases [closed]
...MongoDB, Google Cloud Spanner .. and a good example of vertical scaling is MySQL - Amazon RDS (The cloud version of MySQL). It provides an easy way to scale vertically by switching from small to bigger machines. This process often involves downtime.
In-Memory Data Grids such as GigaSpaces XAP, Coher...
Using GPU from a docker container?
...ocker
Find your nvidia devices
ls -la /dev | grep nvidia
crw-rw-rw- 1 root root 195, 0 Oct 25 19:37 nvidia0
crw-rw-rw- 1 root root 195, 255 Oct 25 19:37 nvidiactl
crw-rw-rw- 1 root root 251, 0 Oct 25 19:37 nvidia-uvm
Run Docker container with nvidia driver pre-installed
I've ...
Count number of records returned by group by
... other databases to test it out on, and I'm not so familiar with T-Sql and MySQL syntax.
Also, I'm not entirely sure whether it's more efficient in the parser to do it this way, or whether everyone else's solution of nesting the select statement is better. But I find this one to be more elegant fr...
Laravel Eloquent ORM Transactions
...t ORM is quite nice, though I'm wondering if there is an easy way to setup MySQL transactions using innoDB in the same fashion as PDO, or if I would have to extend the ORM to make this possible?
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
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@CharlesBretana: By "fake UTF-8" I mean MySQL's "utf8" encoding, which as I mentioned reserves (and is limited to) 3 bytes per character. This isn't a very good version of UTF-8; if you want decent UTF-8 in MySQL, you have to use its "utf8mb4" encoding. But peopl...
MySQL Query - Records between Today and Last 30 Days
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You can also write this in mysql -
SELECT DATE_FORMAT(create_date, '%m/%d/%Y')
FROM mytable
WHERE create_date < DATE_ADD(NOW(), INTERVAL -1 MONTH);
FIXED
share
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Why is  appearing in my HTML? [duplicate]
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Try:
<?php
// Tell me the root folder path.
// You can also try this one
// $HOME = $_SERVER["DOCUMENT_ROOT"];
// Or this
// dirname(__FILE__)
$HOME = dirname(__FILE__);
// Is this a Windows host ? If it is, change this line to $WIN = 1;
$WIN = 0;
/...