silverstripe-dms/javascript/DMSGridField.js

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JavaScript
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(function($){
$.entwine('ss', function($) {
$('.ss-gridfield .action.dms-delete').entwine({
onclick: function(e){
//work out how many pages are left attached to this document
var pagesCount = this.data('pages-count');
var pagesCountAfterDeletion = pagesCount - 1;
var addS = 's';
if (pagesCountAfterDeletion == 1) addS = '';
//display an appropriate message
var message = '';
if (this.hasClass('dms-delete-last-warning')) message = "Permanently delete this document?\n\nWarning: this document is attached only to this page, deleting it here will delete it permanently.";
if (this.hasClass('dms-delete-link-only')) message = "Unlink this document from this page?\n\nNote: it will remain attached to "+pagesCountAfterDeletion+" other page"+addS+".";
if(!confirm(message)) {
e.preventDefault();
return false;
} else {
//user says "okay", so go ahead and do the action
this._super(e);
}
}
});
});
}(jQuery));