The \Traversable interface does not define the `valid` method.
Furthermore, the `valid` method actually checks that there is a _next_
value, which requires the value already be fetched and waiting. This is
not the case for all Iterators. For example the CallbackFilterIterator
does not load the initial value until it is requested.
It is completely unnecessary to do this check anyway as an invalid
Iterator will just not return any values.
The previous behaviour guessed the table filterset based on the table's
class name, but this is not very flexible if you wish to create an
abstract table class and use a generic filter for all implementations.
This change adds the ability to specify the filterset class, with the
default behaviour using the table class name as a prefix.
The json_decode function does not accept a null, which is the
traditional default for get_user_preferences. By passing a default of
am empty string we avoid issues in PHP 8.1.
Default value of the $flag argument changed in PHP 8.1 from ENT_COMPAT to ENT_QUOTES | ENT_SUBSTITUTE
To ensure consistent behavior across different PHP version the second parameter is now required for the functions:
htmlspecialchars(), htmlentities(), htmlspecialchars_decode(), html_entity_decode() and get_html_translation_table()
- new 'set_columns_attributes' method created to add column attributes included in every column cell.
- new 'get_row_cells_html' method created from 'get_row_html', so it can be overriden individually.
Report columns that display the fullname of users should behave
in a consistent manner with current functionality of tables, in
regards to sorting by each individual component of a name (first
name, middle name, surname, etc).
To facilitate this, instead of a hard-coded assumption that such
columns are always named 'fullname', table classes can now define
additional columns containing a users name.
This class would belong more appropriately within the 'user' API
(core_user) instead of within the 'core' API, since it is
directly related to user data.
Since the class has only just been added to Moodle, now is a good
time to move it.
In all cases changes have been kept to a minimum while not making
the code completely horrible. For example, there are many instances
where it would probably be better to rewrite a query entirely, but
I have not done that (in order to reduce the risk of changes).
Paul Holden