This patch introduces a new class for extending Koha::Object-based
classes so they have reusable ways to deal with JSON encoded fields.
As documented in the POD, classes can now
```perl
use base qw(Koha::Object Koha::Object::JSONFields);
```
and will have the following methods available:
* decode_json_field
* set_encoded_json_field
For convenience, the Koha::Auth::Identity::Provider class is tweaked to
make use of this, and also to prove the behavior is correct (expected
results, exceptions, encoding, etc).
To test:
1. Apply this patch
2. Run:
$ ktd --shell
k$ prove t/db_dependent/Koha/Object/JSONField.t
=> SUCCESS: Tests pass!
3. Sign off :-D
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>