When searching for the user by a case-insensitive field (email address
is the only one supported now), the performance may be very poor as the
DB cannot use the index due to the LOWER() operation and the full
sequential scan of all the user records is performed. On some DBs such
as MySQL, this can be significantly improved by pre-filtering the users
with accent-insensitive search.
So we first perform accent-insensitive search for potential candidates
in a subselect, which can use the index. Only then we perform the
additional accent-sensitive search on this limited set or records.
Component names should always support numbers (but the first character).
This patch will add PARAM_COMPONENT the expected regular expression
to validate the expected format.
If your server is behind multiple reverse proxies that append to the
X-Forwarded-For header then you will need to specify a comma separated
list of ip addresses or subnets of the reverse proxies to be ignored
in order to find the users correct IP address.
In the Behat CLI run (not in the individual web requests), if you
modified an existing $CFG variable then this would be reset at the
start of the next scenario. However, if you added a completely new
one, it would not be reset. This change removes those variables.
The Moodle sites now register with stats.moodle.org so use that as a new
official hub's URL. Beside that, allow for the alternative value be
provided in config.php for development and testing purposes.
Both the following constants are no longer needed as Moodle does not
support multiple hubs any more.
* HUB_HUBDIRECTORYURL is no longer valid as Moodle no longer supports
the listing of community hubs.
* HUB_OLDMOODLEORGHUBURL was used in the past for the transition
purposes.
Adds new API support within search engines for optional methods to
delete data for courses and contexts, and implements this for the
two core search plugins (simpledb and solr).
The new API is automatically called when courses or contexts are
deleted. When a whole course is deleted, it only sends the course
delete rather than sending 1,000 separate context deletions as
each activity/block is deleted.
Returns a formatted string representation of the difference between two
timestamps, defaulting to 'Xd Xh Xm' format, but supporting custom
format strings containing any chars from:
https://www.php.net/manual/en/dateinterval.format.php.
Within a very large project, it was found that searching for a user with their username in the user table using a case insensitive
search was inefficient. Instead it is proposed that the username input is made to be lowercase prior to executing a database query
as the username for each user in the database must be lowercase. This allows for a case sensitive query to find the user data.
Essentially we are moving a case insensitive search for a user from SQL into PHP to increase performance.
Commit 637da99edb has introduced changes
for removing trailing zeroes from the output of function format_float.
Due to a small omission, the function causes a PHP warning when the
string decsep is set to a tilde character ('~'). This is rarely the
case.
The bug lies in using PHP function preg_replace with a string that
contains external input (in this case, including decsep), but without
escaping it for PCRE processing.
This commit fixes the function to also support a tilde character in
string decsep. It also adds tests for having tilde as decimal separator.
Thanks-To: Jake Dallimore <jake@moodle.com>
