When QSqlTableModel is used with (for example) with QDataWidgeMapper only the first changed field gets updated in the model. There exists a Qt bugreport at https://bugreports.qt-project.org/browse/QTBUG-1054 which documents this behaviour. In there it was told that it have been fixed for Qt5. But i am living currently at stable (4.7.4). Qt5 went alpha a week ago - so it will take ... This bug report is there to ask if someone has backported the fixes to Qt 4.x. Reproducible: Always Actual Results: Only first update gets propagated to the database. Expected Results: All updates shold be reflechted in the database. Tested wit a MySQL database. Portage 2.1.10.49 (default/linux/amd64/10.0, gcc-4.5.3, glibc-2.13-r4, 3.1.4-gentoo x86_64) ================================================================= System uname: Linux-3.1.4-gentoo-x86_64-Intel-R-_Core-TM-_i7-2720QM_CPU_@_2.20GHz-with-gentoo-2.0.3 Timestamp of tree: Wed, 18 Apr 2012 17:45:01 +0000 app-shells/bash: 4.2_p20 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.2-r3, 3.1.4-r3, 3.2.2 dev-util/cmake: 2.8.6-r4 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.0.3 sys-apps/openrc: 0.9.8.4 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.10.3, 1.11.1 sys-devel/binutils: 2.21.1-r1 sys-devel/gcc: 4.5.3-r2 sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r1 sys-kernel/linux-headers: 3.1 (virtual/os-headers) sys-libs/glibc: 2.13-r4 Repositories: gentoo science qt x-portage ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://de-mirror.org/gentoo/ http://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/" LANG="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de en" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/science /var/lib/layman/qt /usr/local/portage" SYNC="rsync://rsync.de.gentoo.org/gentoo-portage" USE="X aac acl acpi alsa amd64 apache2 berkdb bluetooth bzip2 cdparamoia cdr cgi cli consolekit cracklib crypt css cups cxx dbus dga dhcpcd dri dv dvb dvd dvdr encode exif extras ffmpeg firefox foomaticdb fortran ftp gd gdbm gif gimp git gnutls gphoto2 gpm hddtemp iconv ieee1394 imagemagick java java6 javascript jbig jpeg kde kontact laptop libnotify lm-sensors lzo mad matroska melt mmx mng modules mp3 mp4 mpeg mplayer mudflap multilib mysql ncurses networkmanager nls nptl nptlonly ogg opengl openmp pam pcmcia pcre pdf pdo php png policykit postgres ppds pppd qt3support qt4 readline samba scanner sdl semantic-desktop session slp smp speex sql sqlite3 sse sse2 ssl startup-notification subversion svg sysfs syslog tcpd theora threads tiff truetype udev unicode usb v4l v4l2 vaapi vcd vorbis webkit wifi x264 xcomposite xine xml xorg xpm xulrunner xv xvid xvmc zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DVB_CARDS="usb-wt220u" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de en" PHP_TARGETS="php5-3" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="intel nvidia xv" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
I'm sorry but backporting the fix to Qt 4.x is not feasible, because (quoting upstream dev) "it involves API changes", which clearly cannot be introduced in the 4.x lifetime.
