Bug 7673: (RM followup) typo in sysprefs.sql

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 13116 - Make it possible to propagate errors from C4::Reserves::CanItemBeReserved() to the web-templates.

This patch changes the way CanBookBeReserved() and CanItemBeReserved() return error
messages and how they are dealt with in the templates. This change makes it possible
to distinguish between different types of reservation failure.

Currently only two types of errors are handled, all the way to the user, from the CanItemBeReserved():
-ageRestricted
-tooManyReserves which translates to maxreserves

 #############
 - TEST PLAN -
 #############
((-- AGE RESTRICTION --))
STAFF CLIENT
1. Find a Record with Items, update the MARC Subfield 521a to "PEGI 16".
2. Get a Borrower who is younger than 16 years.
3. Place a hold for the underage Borrower for the ageRestricted Record.
4. You get a notification, that placing a hold on ageRestricted material is
   forbidden. (previously you just got a notification about maximum amount of reserves reached)

((-- MAXIMUM RESERVES REACHED --))
0. Set the  maxreserves -syspref to 3 (or any low value)
STAFF CLIENT AND OPAC
1. Make a ton of reserves for one borrower.
2. Observe the notification about maximum reserves reached blocking your reservations.

((-- MULTIPLE HOLDS STAFF CLIENT --))
3. Observe the error notification "Cannot place hold on some items"

((-- MULTIPLE HOLDS OPAC --))
1. Make a search with many results, of which atleast one is age restricted to the current borrower.
2. Select few results and "Place hold" from to result summary header element.
       (Not individual results "Place hold")
3. Observe individual Biblios getting the "age restricted"-notification, where others can be
   reserved just fine.

Updated the unit tests to match the new method return values.
t/db_dependent/Holds.t & Reserves.t

Followed test plan. Works as expected and displays meaningful messages for the reason why placing a hold is not possible.

Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 13116 [QA Followup] - Remove tabs, use unless instead of if

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 11634 - Allow renewal of item with unfilled holds if other available items can fill those holds

The current holds behavior in Koha allows a situation like this:
- Patron A has an item currently checked out.
- Patron B places a hold on the next available copy of that title.
- Then Patron A will not be able to renew his item, even if there are
  other available copies of that title that could potentially fill Patron
  B's hold.

Since this seems unfair to Patron A, we should allow renewal of items
even if there are unfilled holds, but those holds could all be filled
with currently available items.

Test Plan:
1) Apply this patch
2) Create a record with two items
3) Check out the item to a patron
4) Place a hold on the record
5) Note you cannot renew the item for the patron
6) Enable the new system preference AllowRenewalIfOtherItemsAvailable
7) Note you can now renew the item, as all the holds can be satisfied
   by available items.
8) Place a second hold on the record
9) Note you can no longer renew the item, as all the holds *cannot*
   be filled by currently available items

Signed-off-by: Holger Meissner <h.meissner.82@web.de>
Signed-off-by: Chris Rohde <crohde@roseville.ca.us>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 11634 [QA Followup] - Unit Tests

These new unit tests will fail due to the fact that Koha::Database
uses a separate dbh handle than C4::Context->dbh

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 11634 [QA Followup 2] - Implement check for IsAvailableForItemLevelRequest

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 11634 [QA Followup 3] - Found holds should be considered unavailable

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Bug 11634: DBRev 3.17.00.054

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>