Bug 27316: Convert 'undef' for sort to Yes and use Yes/No instead of 0/1

This patch changes the interface to remove the undef option
We also update existing mappings and set default of 1

Comment previously indicated undef was treated differently, but in the code we treat undef as 1
That code is untoched to avoid creating problems for older mappings that may be reloaded

To test:
1 - View the ES mappings, note you can set columns to Undef, 0, 1
2 - Set some to undef
3 - Apply patches
4 - Update database
5 - Undef now show as 'Yes'
6 - Confirm you can set columns as Yes/no
7 - Confirm that mandatory columns display correct value when readonly (see issues field)

Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

installer/data/mysql/atomicupdate/bug_23716_update_sort_mappings.perl

@@ -0,0 +1,6 @@
+$DBversion = 'XXX';
+if( CheckVersion( $DBversion ) ) {
+    $dbh->do( "UPDATE search_marc_to_field SET sort = 1 WHERE sort IS NULL" );
+    $dbh->do( "ALTER TABLE search_marc_to_field MODIFY COLUMN sort tinyint(1) DEFAULT 1 NOT NULL COMMENT 'Sort defaults to 1 (Yes) and creates sort fields in the index, 0 (no) will prevent this'" );
+    NewVersion( $DBversion, 27316, "In Elastisearch mappings convert NULL (Undef) for sort to 1 (Yes)");
+}

koha-tmpl/intranet-tmpl/prog/en/modules/admin/searchengine/elasticsearch/mappings.tt

@@ -253,7 +253,11 @@ a.add, a.delete {
                                   [% mapping.search_field_label | html %]
                                 </td>
                                 <td>
-                                  <input type="hidden" name="mapping_sort" value="[% mapping.sort | html %]" readonly />[% IF mapping.sort == 'undef' %]Undef[% ELSE %][% mapping.sort | html %][% END %]
+                                  [% IF mapping.sort == 0 %]
+                                      <input type="hidden" name="mapping_sort" value="0" readonly />No
+                                  [% ELSE %]
+                                      <input type="hidden" name="mapping_sort" value="1" readonly />Yes
+                                  [% END %]
                                 </td>
                                 <td>
                                   <input type="hidden" name="mapping_facet" value="[% mapping.facet | html %]" readonly />[% IF mapping.facet == 1 %]Yes[% ELSE %]No[% END %]
@@ -277,20 +281,12 @@ a.add, a.delete {
                                 </td>
                                 <td>
                                   <select name="mapping_sort">
-                                    [% IF mapping.sort == 'undef' %]
-                                      <option value="undef" selected="selected">Undef</option>
-                                    [% ELSE %]
-                                      <option value="undef">Undef</option>
-                                    [% END %]
                                     [% IF mapping.sort == 0 %]
-                                      <option value="0" selected="selected">0</option>
+                                      <option value="0" selected="selected">No</option>
-                                    [% ELSE %]
+                                      <option value="1">Yes</option>
-                                      <option value="0">0</option>
-                                    [% END %]
-                                    [% IF  mapping.sort == 1 %]
-                                      <option value="1" selected="selected">1</option>
                                     [% ELSE %]
-                                      <option value="1">1</option>
+                                      <option value="0">No</option>
+                                      <option value="1" selected="selected">Yes</option>
                                     [% END %]
                                   </select>
                                 </td>