Bug 14060: Consider an empty string as a valid date
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 61d819caef)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
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@ -9,6 +9,9 @@ if (debug > 1) {alert("dateformat: " + dformat + "\ndebug is on (level " + debug
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var MSG_PLEASE_ENTER_A_VALID_DATE = _("Please enter a valid date (should match %s).");
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function is_valid_date(date) {
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// An empty string is considered as a valid date for convenient reasons.
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if ( date === '' ) return 1;
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var dateformat = dateformat_str = '[% Koha.Preference('dateformat') %]';
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if ( dateformat == 'us' ) {
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if ( date.search(/\d{2}\/\d{2}\/\d{4}/) == -1 ) return 0;
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