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fhem.pl: add readingsBulkUpdateIfChanged (Forum #58797)

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git-svn-id: https://svn.fhem.de/fhem/trunk@12311 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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rudolfkoenig 2016-10-10 17:48:19 +00:00
parent fec33610f1
commit 0ffeb8ae51
1 changed files with 11 additions and 1 deletions
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12
fhem/fhem.pl
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@ -4044,9 +4044,19 @@ readingsEndUpdate($$)
return undef; return undef;
} }
# sub
readingsBulkUpdateIfChanged($$$@) # Forum #58797
{
my ($hash,$reading,$value,$changed)= @_;
return undef if($value eq ReadingsVal($hash->{NAME},$reading,""));
return readingsBulkUpdate($hash,$reading,$value,$changed);
}
# Call readingsBulkUpdate to update the reading. # Call readingsBulkUpdate to update the reading.
# Example: readingsUpdate($hash,"temperature",$value); # Example: readingsUpdate($hash,"temperature",$value);
# Optional parameter $changed: if defined, and is 0, do not trigger events. If
# 1, trigger. If not defined, the name of the reading decides (starting with .
# is 0, else 1). The event-on-* filtering is done additionally.
# #
sub sub
readingsBulkUpdate($$$@) readingsBulkUpdate($$$@)