[Koha-bugs] [Bug 20930] Handle YAML type system preferences as parsed references

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20930

--- Comment #1 from Lari Taskula <lari.taskula at jns.fi> ---
Created attachment 76382
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=76382&action=edit
Bug 20930: Dump and load system preferences of YAML/JSON type

Currently, C4::Context->preference('YAMLpref') returns a string that needs to
be
parsed by any code using the preference.

My suggestion is to return a parsed version instead (a hash/array ref or a
string)
and using the syspref cache with the parsed value. Like this, we could:
- centralize parsing of YAML system preferences
- optimize use of system preference cache by caching the parsed version
instead.
  Parse once and store in cache; no need to re-parse on each call!

We can centralize this functionality into Koha::Config::SysPref->value() (used
by
C4::Context->preference). Use database column systempreferences.type with value
of
"YAML" to trigger this functionality in "value()"-method.

To test:
1. prove t/db_dependent/Context.t

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