Error during document suppression from a ticket

[kabassanov]

Hi,

When I try to definitely suppress a document from a ticket, I get the following error:

Les champs obligatoires ne sont pas définis. Merci de corriger : Documents
Opération échouée
(0 problèmes de droits, 1 échecs)
N/A : Erreur en exécutant l'action

I looked up for another solution:
I entered into the document object and succeeded in putting it into the recycle bin.
After that I tried to definitely suppress it from the same object and I got the following:

Les champs obligatoires ne sont pas définis. Merci de corriger : Documents
Suppression avec succès du fichier /var/lib/glpi/files/PDF/e4/5934cad2e9f0cdd55ff4acb89ad842bd695508.PDF

Mise à jour impossible de l'élément : pas assez de droit sur le(s) parent(s)

Les champs obligatoires ne sont pas définis. Merci de corriger : Documents

Élément supprimé définitivement avec succès : Document : Ticket - Machine intel

So now in the ticket (in debug mode) I have also a red line saying:
PHP Notice: Undefined index: date_mod in /usr/share/glpi/inc/ticket.class.php at line 6147

About GLPI:

[code]
GLPI 0.90.3 (/glpi => /usr/share/glpi)

Operating system: Linux xxxxx.lip6.fr 3.10.0-327.13.1.el7.x86_64 #1 SMP Thu Mar 31 16:04:38 UTC 2016 x86_64
PHP 5.6.21 apache2handler (Core, PDO, Phar, Reflection, SPL, SimpleXML, apache2handler, apc, apcu, bcmath, bz2, calendar, ctype,
curl, date, dom, ereg, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, igbinary, imap, intl, json, ldap, libxml,
lzf, mbstring, mcrypt, mhash, msgpack, mysql, mysqli, mysqlnd, openssl, pcre, pdo_mysql, pdo_sqlite, posix, recode, session,
shmop, sockets, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, wddx, xml, xmlreader, xmlwriter, xsl, zip, zlib)
Setup: max_execution_time="120" memory_limit="512M" post_max_size="8M" safe_mode="" session.save_handler="files"
upload_max_filesize="10M"
Software: Apache/2.4.6 (CentOS) OpenSSL/1.0.1e-fips PHP/5.6.21 ()
Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko
Server Software: MariaDB Server
Server Version: 5.5.47-MariaDB
Server SQL Mode: STRICT_ALL_TABLES
Parameters: root@localhost/glpi
Host info: Localhost via UNIX socket

OK/etc/glpi : OK
OK/var/lib/glpi/files : OK
OK/var/lib/glpi/files/_dumps : OK
OK/var/lib/glpi/files/_sessions : OK
OK/var/lib/glpi/files/_cron : OK
OK/var/lib/glpi/files/_graphs : OK
OK/var/lib/glpi/files/_lock : OK
OK/var/lib/glpi/files/_plugins : OK
OK/var/lib/glpi/files/_tmp : OK
OK/var/lib/glpi/files/_rss : OK
OK/var/lib/glpi/files/_uploads : OK
OK/var/lib/glpi/files/_pictures : OK
OK/var/log/glpi : OK
Web access to files directory is protectedWeb access to files directory is protected : OK
OKSELinux mode is Disabled

Plugins list
additionalalerts Name: Alertes supplémentaires Version: 1.8.0 State: Enabled
certificates Name: Certificats Version: 2.1.1 State: Enabled
fields Name: Champs supplémentaires Version: 0.90-1.2 State: Enabled
customfields Name: Customfields Version: 1.7 State: Not activated
fusioninventory Name: FusionInventory Version: 0.90+1.2 State: Enabled
geninventorynumber Name: Génération de numéros d'invent Version: 0.85+1.0 State: Enabled
ocsinventoryng Name: OCS Inventory NG Version: 1.2.1 State: Enabled

[jsamaniegog]

I have the same error, if you try to disociate from ticket or document screen get the following error:

Mandatory fields are not filled. Please correct: Documents

[yllen]

Solved in #649

[kabassanov]

Je confirme.