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How to pull a random record using Django's ORM?
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Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from r...
Panel.Dock Fill ignoring other Panel.Dock setting
...l, it may fill the entire form, ignoring the first panel. Changing the tab order does nothing.
10 Answers
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Common elements comparison between 2 lists
...at when I ended up on this page, it was important to preserve the original order of the elements for the post-filtered elements. This method loses the order, whereas the list comprehension method preserves the order. Important if anyone needs to consider this. Thanks.
– agft...
Why use the INCLUDE clause when creating an index?
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If the column is not in the WHERE/JOIN/GROUP BY/ORDER BY, but only in the column list in the SELECT clause.
The INCLUDE clause adds the data at the lowest/leaf level, rather than in the index tree.
This makes the index smaller because it's not part of the tree
INCLUDE co...
Avoiding instanceof in Java
...the: At least you don't have to deal with a growing if then else chain in order to add, remove or modify handlers. The code is less fragile to changes. So I'd say that for this reason it's superior to the instanceof approach. Anyway, I just wanted to give a valid alternative.
–...
Location of my.cnf file on macOS
...ams read config/startup files in the following locations (in the specified order):
/etc/my.cnf - Global
/etc/mysql/my.cnf - Global
SYSCONFDIR/my.cnf - Global
SYSCONFDIR represents the directory specified with the SYSCONFDIR option to CMake when MySQL was built. By default, this is the etc di...
How to set HTTP headers (for cache-control)?
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Is order in this important? "max-age=290304000, public" Or "public, max-age=290304000" or both are equally right?
– Satya Prakash
Sep 8 '13 at 8:02
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Converting dict to OrderedDict
I am having some trouble using the collections.OrderedDict class. I am using Python 2.7 on Raspbian, the Debian distro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately.
No matter what I...
Is the order of elements in a JSON list preserved?
I've noticed the order of elements in a JSON object not being the original order.
5 Answers
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Best architectural approaches for building iOS networking applications (REST clients)
...er declares services which we use for interacting with external systems in order to send or receive data which is represented in our domain model. So usually we have services for communication with server APIs (per entity), messaging services (like PubNub), storage services (like Amazon S3), etc. Ba...