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MDL-9616 - Custom checks in environment.xml
MDL-9616 - tidy up
* add a better message in the table for these checks.
* improve existing strings for other types of check.
* remove a line of debug code.
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Added new check to be able to compare current and target
moodle versions. Executed only on upgrade (not at install). MDL-10722
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MDL-10938. 'only strings from lang files can be used as feedback in environment check. Some way is needed to include data from custom check function - a $a param to pass to get_string'. Custom check for questions uses new functionality to print more complex strings as feedback.
function execution. Currently it's used to check for MySQL 4.1.12
and if present, result will be ok, showing a notice about
possible problems with non latin languages.
php and php_extension) some feedback notes to be showed on error,
on check and on ok.
Tomorrow, I'll include de bypass mechanism that will allow us to
change results of any text based in function call results.
jamiesensei