Bug 15252 - Patron search on start with does not work with several terms

Bug 15252 - Patron search on start with does not work with several terms

When searching a patron, search type can be 'start with' and 'contain'.
If the search text contains a space (or a coma), this text is splitted into several terms.

Actually, the search on 'start with' with several terms never returns a result.

It is because the search composes an "AND" SQL query on terms.
For example (I display only the surname part) :
search type = contain :
  'jean paul' => surname like '%jean% AND %paul%'
search type = start with :
  'jean paul' => surname like 'jean% AND paul%'
The query for 'start with' is impossible.

I propose, for search with start with, to not split terms :
  jean paul => surname like 'jean paul%'

One can always use '*' to add more truncation :
  jea* pau* => surname like 'jea% pau%'

This bug affects a lot surnames with several terms like 'LE GUELEC' or 'MAC BETH'.

Note that the patch moves :
  $searchmember =~ s/,/ /g;
It removes the test "if $searchmember" because $searchmember is tested and set to empty string previously :
    unless ( $searchmember ) {
        $searchmember = $dt_params->{sSearch} // '';
    }

Test plan :
==========
- Create two patrons with firstname "Jean Paul"
- Go to Patrons module
- Choose "Starts with" in "Search type" filter
- Perform a search on "Jean Paul"
=> without patch : you get no result
=> with this patch : you get the two results
- Check you get the two results for search on "Jean Pau"
- Check you get the two results for search on "Jea* Pau*"
- Check you do not get results for search on "Jea Paul"
- Choose "Contains" in "Search type" filter
- Check you get the two results for search on "Jean Paul"
- Check you get the two results for search on "Jean Pau"
- Check you get the two results for search on "Jea* Pau*"
- Check you get the two results for search on "Jea Paul"
- Check you get the two results for search on "Paul Jean"

Signed-off-by: Alex <alexklbuckley@gmail.com>
Tested 4 patches together, works as expected
Signed-off-by: Marc Véron <veron@veron.ch>
Bug 15252 - Patron search on start with does not work with several terms - followup 1

'start_with' is the default value of $searchtype, it can be explicit.

Tested 4 patches together, works as expected
Signed-off-by: Marc Véron <veron@veron.ch>
Bug 15252 - correct UT searchtype value is contain and not contains

Tested 4 patches together, works as expected
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit a4f5564c855e31f6872fb5e3ef378381473f837c)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>