Previously, when a during backup/restore the "Schema"-stage is loaded,
some settings are fixed if they are LOCKED_BY_HIERARCHY. However, user
data fields of activities can be locked, when the section they are
contained in has user data set to false. When this setting is changed on
the same screen, the fixed setting of the activity can not be "unfixed"
by javascript.
This patch adds a settings-level to the call of is_changeable. With this
only those dependency_settings are considered, which belong to parent
settings, which are not changeable on the current stage.
The issue was that clean_param took an int and returned a string
and the result was used in an exact comparison.
The type change mean the comparison failed.
The solution was to ensure the param was cast as a string.
It was not previously possible to have a section called 0 because of
bugs in the standard course formats, but we hit this with the OU course
format. You got an exception because backup settings tested to see if
their lable was empty, which means a section name of '0' was fatal.
Should work now.
* Root settings are now check boxes rather than selects
* Language strings adjusted as requested
* Final continue on backup now redirecteds to restore pre ui
* Category + course selectors now perform required capability checks
* Show/Hide settings from UI tested and implemented for overwrite_conf setting
* Final continue button is GET rather than post
* Temp zip file is deleted after successfull extraction
* Removed previous button from settings stage MDL-23480
