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fhem-mirror/fhem/contrib/dblog/93_DbLog.pm
tobiasfaust 4e61a5d6d9 DbLog (contrib): (thanks to fuzzy) 
- Event parsing method: Changed if to elseif to speed it up, added parsing support for OWL energy monitors (TRX_WEATHER), AC level command (TRX_LIGHTING), CUL_HM actuator messages. Fixed indentation levels.
  - Log method: Changed to use one transaction for writing all of the readings.
  - Get method: Changed to use bind variables with fetch (fastest way to read data), reduced the returned columns to 'timestamp' and 'value'.

  - changed index on history for postgresql


git-svn-id: https://svn.fhem.de/fhem/trunk@2976 2b470e98-0d58-463d-a4d8-8e2adae1ed80
2013-03-24 12:44:46 +00:00

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##############################################
# $Id$
#
# 93_DbLog.pm
# written by Dr. Boris Neubert 2007-12-30
# e-mail: omega at online dot de
#
# modified by Tobias Faust 2012-06-26
# e-mail: tobias dot faust at online dot de
#
##############################################
package main;
use strict;
use warnings;
use DBI;
use Data::Dumper;
sub DbLog($$$);
################################################################
sub
DbLog_Initialize($)
{
my ($hash) = @_;
$hash->{DefFn} = "DbLog_Define";
$hash->{UndefFn} = "DbLog_Undef";
$hash->{NotifyFn} = "DbLog_Log";
$hash->{GetFn} = "DbLog_Get";
$hash->{AttrFn} = "DbLog_Attr";
$hash->{AttrList} = "disable:0,1 loglevel:0,5 DbLogType:Current,History,Current/History";
}
###############################################################
sub
DbLog_Define($@)
{
my ($hash, $def) = @_;
my @a = split("[ \t][ \t]*", $def);
return "wrong syntax: define <name> DbLog configuration regexp"
if(int(@a) != 4);
my $regexp = $a[3];
eval { "Hallo" =~ m/^$regexp$/ };
return "Bad regexp: $@" if($@);
$hash->{REGEXP} = $regexp;
$hash->{CONFIGURATION}= $a[2];
return "Can't connect to database." if(!DbLog_Connect($hash));
$hash->{STATE} = "active";
return undef;
}
#####################################
sub
DbLog_Undef($$)
{
my ($hash, $name) = @_;
my $dbh= $hash->{DBH};
$dbh->disconnect() if(defined($dbh));
return undef;
}
################################################################
#
# Wird bei jeder Aenderung eines Attributes dieser
# DbLog-Instanz aufgerufen
#
################################################################
sub
DbLog_Attr(@)
{
my @a = @_;
my $do = 0;
if($a[0] eq "set" && $a[2] eq "disable") {
$do = (!defined($a[3]) || $a[3]) ? 1 : 2;
}
$do = 2 if($a[0] eq "del" && (!$a[2] || $a[2] eq "disable"));
return if(!$do);
$defs{$a[1]}{STATE} = ($do == 1 ? "disabled" : "active");
return undef;
}
################################################################
#
# Parsefunktion, abhaengig vom Devicetyp
#
################################################################
sub
DbLog_ParseEvent($$)
{
my ($type, $event)= @_;
my @result;
# split the event into reading and argument
# "day-temp: 22.0 (Celsius)" -> "day-temp", "22.0 (Celsius)"
my @parts = split(/: /,$event);
my $reading = shift @parts;
my $value = join(": ", @parts);
my $unit = "";
#default
if(!defined($reading)) { $reading = ""; }
if(!defined($value)) { $value = ""; }
# the interpretation of the argument depends on the device type
# EMEM, M232Counter, M232Voltage return plain numbers
if(($type eq "M232Voltage") ||
($type eq "M232Counter") ||
($type eq "EMEM")) {
}
# Onewire
elsif(($type eq "OWAD") ||
($type eq "OWSWITCH") ||
($type eq "OWMULTI")) {
$reading = "data";
$value = $event;
}
# FS20
elsif(($type eq "FS20") ||
($type eq "X10")) {
if($reading =~ m/^dim(\d+).*/o) {
$value = $1;
$reading= "dim";
$unit= "%";
}
elsif(!defined($value) || $value eq "") {
$value= $reading;
$reading= "data";
}
}
# FHT
elsif($type eq "FHT") {
if($reading =~ m(-from[12]\ ) || $reading =~ m(-to[12]\ )) {
@parts= split(/ /,$event);
$reading= $parts[0];
$value= $parts[1];
$unit= "";
}
elsif($reading =~ m(-temp)) { $value=~ s/ \(Celsius\)//; $unit= "°C"; }
elsif($reading =~ m(temp-offset)) { $value=~ s/ \(Celsius\)//; $unit= "°C"; }
elsif($reading =~ m(^actuator[0-9]*)) {
if($value eq "lime-protection") {
$reading= "actuator-lime-protection";
undef $value;
}
elsif($value =~ m(^offset:)) {
$reading= "actuator-offset";
@parts= split(/: /,$value);
$value= $parts[1];
if(defined $value) {
$value=~ s/%//; $value= $value*1.; $unit= "%";
}
}
elsif($value =~ m(^unknown_)) {
@parts= split(/: /,$value);
$reading= "actuator-" . $parts[0];
$value= $parts[1];
if(defined $value) {
$value=~ s/%//; $value= $value*1.; $unit= "%";
}
}
elsif($value eq "synctime") {
$reading= "actuator-synctime";
undef $value;
}
elsif($value eq "test") {
$reading= "actuator-test";
undef $value;
}
elsif($value eq "pair") {
$reading= "actuator-pair";
undef $value;
}
else {
$value=~ s/%//; $value= $value*1.; $unit= "%";
}
}
}
# KS300
elsif($type eq "KS300") {
if($event =~ m(T:.*)) { $reading= "data"; $value= $event; }
elsif($event =~ m(avg_day)) { $reading= "data"; $value= $event; }
elsif($event =~ m(avg_month)) { $reading= "data"; $value= $event; }
elsif($reading eq "temperature") { $value=~ s/ \(Celsius\)//; $unit= "°C"; }
elsif($reading eq "wind") { $value=~ s/ \(km\/h\)//; $unit= "km/h"; }
elsif($reading eq "rain") { $value=~ s/ \(l\/m2\)//; $unit= "l/m2"; }
elsif($reading eq "rain_raw") { $value=~ s/ \(counter\)//; $unit= ""; }
elsif($reading eq "humidity") { $value=~ s/ \(\%\)//; $unit= "%"; }
elsif($reading eq "israining") {
$value=~ s/ \(yes\/no\)//;
$value=~ s/no/0/;
$value=~ s/yes/1/;
}
}
# HMS
elsif($type eq "HMS" ||
$type eq "CUL_WS" ||
$type eq "OWTHERM") {
if($event =~ m(T:.*)) { $reading= "data"; $value= $event; }
elsif($reading eq "temperature") {
$value=~ s/ \(Celsius\)//;
$value=~ s/([-\.\d]+).*/$1/; #OWTHERM
$unit= "°C";
}
elsif($reading eq "humidity") { $value=~ s/ \(\%\)//; $unit= "%"; }
elsif($reading eq "battery") {
$value=~ s/ok/1/;
$value=~ s/replaced/1/;
$value=~ s/empty/0/;
}
}
# CUL_HM
elsif ($type eq "CUL_HM") {
# remove trailing %
$value=~ s/ \%$//;
}
# BS
elsif($type eq "BS") {
if($event =~ m(brightness:.*)) {
@parts= split(/ /,$event);
$reading= "lux";
$value= $parts[4]*1.;
$unit= "lux";
}
}
# RFXTRX Lighting
elsif($type eq "TRX_LIGHT") {
if($reading =~ m/^level (\d+)/) {
$value = $1;
$reading= "level";
}
}
# RFXTRX Sensors
elsif($type eq "TRX_WEATHER") {
if($reading eq "energy_current") { $value=~ s/ W//; }
elsif($reading eq "energy_total") { $value=~ s/ kWh//; }
elsif($reading eq "battery") {
if ($value=~ m/(\d+)\%/) {
$value= $1;
}
else {
$value= ($value eq "ok");
}
}
}
# Weather
elsif($type eq "WEATHER") {
if($event =~ m(^wind_condition)) {
@parts= split(/ /,$event); # extract wind direction from event
if(defined $parts[0]) {
$reading = "wind_direction";
$value= $parts[2];
}
}
elsif($reading eq "wind_chill") { $unit= "°C"; }
elsif($reading eq "wind_direction") { $unit= ""; }
elsif($reading =~ m(^wind)) { $unit= "km/h"; } # wind, wind_speed
elsif($reading =~ m(^temperature)) { $unit= "°C"; } # wenn reading mit temperature beginnt
elsif($reading =~ m(^humidity)) { $unit= "%"; }
elsif($reading =~ m(^pressure)) { $unit= "hPa"; }
elsif($reading =~ m(^pressure_trend)) { $unit= ""; }
}
# FHT8V
elsif($type eq "FHT8V") {
if($reading =~ m(valve)) {
@parts= split(/ /,$event);
$reading= $parts[0];
$value= $parts[1];
$unit= "%";
}
}
# DUMMY
elsif($type eq "DUMMY") {
$reading= "data";
$value= $event;
$unit= "";
}
@result= ($reading,$value,$unit);
return @result;
}
################################################################
#
# Hauptroutine zum Loggen. Wird bei jedem Eventchange
# aufgerufen
#
################################################################
sub
DbLog_Log($$)
{
# Log is my entry, Dev is the entry of the changed device
my ($log, $dev) = @_;
return undef if($log->{STATE} eq "disabled");
# name and type required for parsing
my $n= $dev->{NAME};
my $t= uc($dev->{TYPE});
# timestamp in SQL format YYYY-MM-DD hh:mm:ss
#my ($sec,$min,$hr,$day,$mon,$yr,$wday,$yday,$isdst)= localtime(time);
#my $ts= sprintf("%04d-%02d-%02d %02d:%02d:%02d", $yr+1900,$mon+1,$day,$hr,$min,$sec);
my $re = $log->{REGEXP};
my $max = int(@{$dev->{CHANGED}});
my $ts_0 = TimeNow();
my $dbh= $log->{DBH};
$dbh->{RaiseError} = 1;
my $DbLogType = AttrVal($log->{NAME}, "DbLogType", "Current/History");
#one Transaction
eval {
$dbh->begin_work();
my $sth_ih = $dbh->prepare_cached("INSERT INTO history (TIMESTAMP, DEVICE, TYPE, EVENT, READING, VALUE, UNIT) VALUES (?,?,?,?,?,?,?)") if ($DbLogType =~ m(History) );
my $sth_uc = $dbh->prepare_cached("UPDATE current SET TIMESTAMP=?, TYPE=?, EVENT=?, VALUE=?, UNIT=? WHERE (DEVICE=?) AND (READING=?)") if ($DbLogType =~ m(Current) );
my $sth_ic = $dbh->prepare_cached("INSERT INTO current (TIMESTAMP, DEVICE, TYPE, EVENT, READING, VALUE, UNIT) VALUES (?,?,?,?,?,?,?)") if ($DbLogType =~ m(Current) );
for (my $i = 0; $i < $max; $i++) {
my $s = $dev->{CHANGED}[$i];
$s = "" if(!defined($s));
if($n =~ m/^$re$/ || "$n:$s" =~ m/^$re$/) {
my $ts = $ts_0;
$ts = $dev->{CHANGETIME}[$i] if(defined($dev->{CHANGETIME}[$i]));
# $ts is in SQL format YYYY-MM-DD hh:mm:ss
my @r= DbLog_ParseEvent($t, $s);
my $reading= $r[0];
my $value= $r[1];
my $unit= $r[2];
if(!defined $reading) { $reading= ""; }
if(!defined $value) { $value= ""; }
if(!defined $unit || $unit eq "") {
$unit = AttrVal("$n", "unit", "");
}
my @is= ($ts, $n, $t, $s, $reading, $value, $unit);
# insert into history
if ($DbLogType =~ m(History) ) {
my $rv_ih = $sth_ih->execute(@is);
}
if ($DbLogType =~ m(Current) ) {
# update or insert current
my $rv_uc = $sth_uc->execute(($ts, $t, $s, $value, $unit, $n, $reading));
if ($rv_uc == 0) {
my $rv_ic = $sth_ic->execute(@is);
}
}
}
}
$dbh->commit();
};
if ($@) {
Log 2, "DbLog: Failed to insert new readings into database: $@";
$dbh->{RaiseError} = 0;
$dbh->rollback();
# reconnect
$dbh->disconnect();
DbLog_Connect($log);
}
else {
$dbh->{RaiseError} = 0;
}
return "";
}
################################################################
#
# zerlegt uebergebenes FHEM-Datum in die einzelnen Bestandteile
# und fuegt noch Defaultwerte ein
# uebergebenes SQL-Format: YYYY-MM-DD HH24:MI:SS
#
################################################################
sub
DbLog_explode_datetime($%) {
my ($t, %def) = @_;
my %retv;
my (@datetime, @date, @time);
@datetime = split(" ", $t); #Datum und Zeit auftrennen
@date = split("-", $datetime[0]);
@time = split(":", $datetime[1]) if ($datetime[1]);
if ($date[0]) {$retv{year} = $date[0];} else {$retv{year} = $def{year};}
if ($date[1]) {$retv{month} = $date[1];} else {$retv{month} = $def{month};}
if ($date[2]) {$retv{day} = $date[2];} else {$retv{day} = $def{day};}
if ($time[0]) {$retv{hour} = $time[0];} else {$retv{hour} = $def{hour};}
if ($time[1]) {$retv{minute}= $time[1];} else {$retv{minute}= $def{minute};}
if ($time[2]) {$retv{second}= $time[2];} else {$retv{second}= $def{second};}
$retv{datetime}=DbLog_implode_datetime($retv{year}, $retv{month}, $retv{day}, $retv{hour}, $retv{minute}, $retv{second});
#Log 1, Dumper(%retv);
return %retv
}
sub
DbLog_implode_datetime($$$$$$) {
my ($year, $month, $day, $hour, $minute, $second) = @_;
my $retv = $year."-".$month."-".$day." ".$hour.":".$minute.":".$second;
return $retv;
}
################################################################
#
# Verbindung zur DB aufbauen
#
################################################################
sub
DbLog_Connect($)
{
my ($hash)= @_;
my $configfilename= $hash->{CONFIGURATION};
if(!open(CONFIG, $configfilename)) {
Log 1, "Cannot open database configuration file $configfilename.";
return 0; }
my @config=<CONFIG>;
close(CONFIG);
my %dbconfig;
eval join("", @config);
my $dbconn= $dbconfig{connection};
my $dbuser= $dbconfig{user};
my $dbpassword= $dbconfig{password};
#check the database model
if($dbconn =~ m/pg:/i) {
$hash->{DBMODEL}="POSTGRESQL";
} elsif ($dbconn =~ m/mysql:/i) {
$hash->{DBMODEL}="MYSQL";
} elsif ($dbconn =~ m/oracle:/i) {
$hash->{DBMODEL}="ORACLE";
} elsif ($dbconn =~ m/sqlite:/i) {
$hash->{DBMODEL}="SQLITE";
} else {
$hash->{DBMODEL}="unknown";
Log 3, "Unknown dbmodel type in configuration file $configfilename.";
Log 3, "Only Mysql, Postgresql, Oracle, SQLite are fully supported.";
Log 3, "It may cause SQL-Erros during generating plots.";
}
Log 3, "Connecting to database $dbconn with user $dbuser";
my $dbh = DBI->connect_cached("dbi:$dbconn", $dbuser, $dbpassword);
if(!$dbh) {
Log 2, "Can't connect to $dbconn: $DBI::errstr";
return 0;
}
Log 3, "Connection to db $dbconn established";
$hash->{DBH}= $dbh;
if ($hash->{DBMODEL} eq "SQLITE") {
$dbh->do("PRAGMA temp_store=MEMORY");
$dbh->do("PRAGMA synchronous=NORMAL");
$dbh->do("PRAGMA journal_mode=WAL");
$dbh->do("PRAGMA cache_size=4000");
$dbh->do("CREATE TEMP TABLE IF NOT EXISTS current (TIMESTAMP TIMESTAMP, DEVICE varchar(32), TYPE varchar(32), EVENT varchar(512), READING varchar(32), VALUE varchar(32), UNIT varchar(32)");
$dbh->do("CREATE TABLE IF NOT EXISTS history (TIMESTAMP TIMESTAMP, DEVICE varchar(32), TYPE varchar(32), EVENT varchar(512), READING varchar(32), VALUE varchar(32), UNIT varchar(32)");
$dbh->do("CREATE INDEX IF NOT EXISTS Search_Idx ON `history` (DEVICE, READING, TIMESTAMP)");
}
# creating an own connection for the webfrontend, saved as DBHF in Hash
# this makes sure that the connection doesnt get lost due to other modules
my $dbhf = DBI->connect_cached("dbi:$dbconn", $dbuser, $dbpassword);
if(!$dbhf) {
Log 2, "Can't connect to $dbconn: $DBI::errstr";
return 0;
}
Log 3, "Connection to db $dbconn established";
$hash->{DBHF}= $dbhf;
return 1;
}
################################################################
#
# Prozeduren zum Ausfuehren des SQLs
#
################################################################
sub
DbLog_ExecSQL1($$)
{
my ($dbh,$sql)= @_;
my $sth = $dbh->do($sql);
if(!$sth) {
Log 2, "DBLog error: " . $DBI::errstr;
return 0;
}
return $sth;
}
sub
DbLog_ExecSQL($$)
{
my ($hash,$sql)= @_;
Log GetLogLevel($hash->{NAME},5), "Executing $sql";
my $dbh= $hash->{DBH};
my $sth = DbLog_ExecSQL1($dbh,$sql);
if(!$sth) {
#retry
$dbh->disconnect();
if(!DbLog_Connect($hash)) {
Log 2, "DBLog reconnect failed.";
return 0;
}
$dbh= $hash->{DBH};
$sth = DbLog_ExecSQL1($dbh,$sql);
if(!$sth) {
Log 2, "DBLog retry failed.";
return 0;
}
Log 2, "DBLog retry ok.";
}
return $sth;
}
################################################################
#
# GET Funktion
# wird zb. zur Generierung der Plots implizit aufgerufen
#
################################################################
sub
DbLog_Get($@)
{
my ($hash, @a) = @_;
return "Usage: get $a[0] <in> <out> <from> <to> <column_spec>...\n".
" where column_spec is <device>:<reading>:<default>:<fn>\n" .
" see the #DbLog entries in the .gplot files\n" .
" <in> is not used, only for compatibility for FileLog, please use - \n" .
" <out> is a prefix, - means stdout\n"
if(int(@a) < 5);
shift @a;
my $inf = shift @a;
my $outf = shift @a;
my $from = shift @a;
my $to = shift @a; # Now @a contains the list of column_specs
my ($internal, @fld);
if($outf eq "INT") {
$outf = "-";
$internal = 1;
} elsif (uc($outf) eq "WEBCHART") {
# redirect the get request to the chartQuery function
return chartQuery($hash, @_);
}
my @readings = ();
my (%sqlspec, %from_datetime, %to_datetime);
#uebergebenen Timestamp anpassen
#moegliche Formate: YYYY | YYYY-MM | YYYY-MM-DD | YYYY-MM-DD_HH24
$from =~ s/_/\ /g;
$to =~ s/_/\ /g;
%from_datetime = DbLog_explode_datetime($from, DbLog_explode_datetime("2000-01-01 00:00:00", ()));
%to_datetime = DbLog_explode_datetime($to, DbLog_explode_datetime("2099-01-01 00:00:00", ()));
$from = $from_datetime{datetime};
$to = $to_datetime{datetime};
my ($retval,$sql_timestamp,$sql_value, $type, $event, $unit) = "";
my $writeout = 0;
my (@min, @max, @sum, @cnt, @lastv, @lastd);
my (%tstamp, %lasttstamp, $out_tstamp, $out_value, $minval, $maxval); #fuer delta-h/d Berechnung
#extract the Device:Reading arguments into @readings array
for(my $i = 0; $i < int(@a); $i++) {
@fld = split(":", $a[$i], 5);
$readings[$i][0] = $fld[0]; # Device
$readings[$i][1] = $fld[1]; # Reading
$readings[$i][2] = $fld[2]; # Default
$readings[$i][3] = $fld[3]; # function
$readings[$i][4] = $fld[4]; # regexp
}
my $dbh= $hash->{DBH};
#vorbereiten der DB-Abfrage, DB-Modell-abhaengig
if ($hash->{DBMODEL} eq "POSTGRESQL") {
$sqlspec{get_timestamp} = "TO_CHAR(TIMESTAMP, 'YYYY-MM-DD HH24:MI:SS')";
$sqlspec{from_timestamp} = "TO_TIMESTAMP('$from', 'YYYY-MM-DD HH24:MI:SS')";
$sqlspec{to_timestamp} = "TO_TIMESTAMP('$to', 'YYYY-MM-DD HH24:MI:SS')";
$sqlspec{reading_clause} = "(DEVICE || '|' || READING)";
} elsif ($hash->{DBMODEL} eq "ORACLE") {
$sqlspec{get_timestamp} = "TO_CHAR(TIMESTAMP, 'YYYY-MM-DD HH24:MI:SS')";
$sqlspec{from_timestamp} = "TO_TIMESTAMP('$from', 'YYYY-MM-DD HH24:MI:SS')";
$sqlspec{to_timestamp} = "TO_TIMESTAMP('$to', 'YYYY-MM-DD HH24:MI:SS')";
} elsif ($hash->{DBMODEL} eq "MYSQL") {
$sqlspec{get_timestamp} = "DATE_FORMAT(TIMESTAMP, '%Y-%m-%d %H:%i:%s')";
$sqlspec{from_timestamp} = "STR_TO_DATE('$from', '%Y-%m-%d %H:%i:%s')";
$sqlspec{to_timestamp} = "STR_TO_DATE('$to', '%Y-%m-%d %H:%i:%s')";
} elsif ($hash->{DBMODEL} eq "SQLITE") {
$sqlspec{get_timestamp} = "TIMESTAMP";
$sqlspec{from_timestamp} = "'$from'";
$sqlspec{to_timestamp} = "'$to'";
} else {
$sqlspec{get_timestamp} = "TIMESTAMP";
$sqlspec{from_timestamp} = "'$from'";
$sqlspec{to_timestamp} = "'$to'";
}
if(uc($outf) eq "ALL") {
$sqlspec{all} = ",TYPE,EVENT,UNIT";
} else {
$sqlspec{all} = "";
}
for(my $i=0; $i<int(@readings); $i++) {
# ueber alle Readings
# Variablen initialisieren
$min[$i] = 999999;
$max[$i] = -999999;
$sum[$i] = 0;
$cnt[$i] = 0;
$lastv[$i] = 0;
$lastd[$i] = "undef";
$minval = 999999;
$maxval = -999999;
my $stm= "SELECT
$sqlspec{get_timestamp},
VALUE
$sqlspec{all}
FROM history
WHERE
DEVICE = '".$readings[$i]->[0]."'
AND READING = '".$readings[$i]->[1]."'
AND TIMESTAMP > $sqlspec{from_timestamp}
AND TIMESTAMP < $sqlspec{to_timestamp}
ORDER BY TIMESTAMP";
Log GetLogLevel($hash->{NAME},5), "Executing $stm";
my $sth= $dbh->prepare($stm) ||
return "Cannot prepare statement $stm: $DBI::errstr";
my $rc= $sth->execute() ||
return "Cannot execute statement $stm: $DBI::errstr";
if(uc($outf) eq "ALL") {
$sth->bind_columns(undef, \$sql_timestamp, \$sql_value, \$type, \$event, \$unit);
$retval .= "Timestamp: Device, Type, Event, Reading, Value, Unit\n";
$retval .= "=====================================================\n";
}
else {
$sth->bind_columns(undef, \$sql_timestamp, \$sql_value);
}
while($sth->fetch()) {
$writeout = 0;
$out_value = "";
$out_tstamp = "";
############ Auswerten des 5. Parameters: Regexp ###################
if($readings[$i]->[4] && $readings[$i]->[4]) {
#evaluate
my $val = $sql_value;
eval("$readings[$i]->[4]");
$sql_value = $val;
if($@) {Log 3, "DbLog: Error in inline function: <".$readings[$i]->[4].">, Error: $@";}
$out_tstamp = $sql_timestamp;
$writeout=1;
}
############ Auswerten des 4. Parameters: function ###################
if($readings[$i]->[3] && $readings[$i]->[3] eq "int") {
#nur den integerwert uebernehmen falls zb value=15°C
$out_value = $1 if($sql_value =~ m/^(\d+).*/o);
$out_tstamp = $sql_timestamp;
$writeout=1;
} elsif ($readings[$i]->[3] && $readings[$i]->[3] =~ m/^int(\d+).*/o) {
#Übernehme den Dezimalwert mit den angegebenen Stellen an Nachkommastellen
$out_value = $1 if($sql_value =~ m/^([-\.\d]+).*/o);
$out_tstamp = $sql_timestamp;
$writeout=1;
} elsif ($readings[$i]->[3] && $readings[$i]->[3] eq "delta-h") {
#Berechnung eines Stundenwertes
%tstamp = DbLog_explode_datetime($sql_timestamp, ());
if($lastd[$i] eq "undef") {
%lasttstamp = DbLog_explode_datetime($sql_timestamp, ());
} else {
%lasttstamp = DbLog_explode_datetime($lastd[$i], ());
}
if("$tstamp{hour}" ne "$lasttstamp{hour}") {
# Aenderung der stunde, Berechne Delta
$out_value = sprintf("%0.1f", $maxval - $minval);
$out_tstamp = DbLog_implode_datetime($lasttstamp{year}, $lasttstamp{month}, $lasttstamp{day}, $lasttstamp{hour}, "30", "00");
$minval = 999999;
$maxval = -999999;
$writeout=1;
}
} elsif ($readings[$i]->[3] && $readings[$i]->[3] eq "delta-d") {
#Berechnung eines Tageswertes
%tstamp = DbLog_explode_datetime($sql_timestamp, ());
if($lastd[$i] eq "undef") {
%lasttstamp = DbLog_explode_datetime($sql_timestamp, ());
} else {
%lasttstamp = DbLog_explode_datetime($lastd[$i], ());
}
if("$tstamp{day}" ne "$lasttstamp{day}") {
# Aenderung des Tages, Berechne Delta
$out_value = sprintf("%0.1f", $maxval - $minval);
$out_tstamp = DbLog_implode_datetime($lasttstamp{year}, $lasttstamp{month}, $lasttstamp{day}, "00", "00", "00");
$minval = 999999;
$maxval = -999999;
$writeout=1;
}
} else {
$out_value = $sql_value;
$out_tstamp = $sql_timestamp;
$writeout=1;
}
###################### Ausgabe ###########################
if($writeout) {
if(uc($outf) eq "ALL") {
$retval .= sprintf("%s: %s, %s, %s, %s, %s, %s\n", $out_tstamp, $readings[$i]->[0], $type, $event, $readings[$i]->[1], $out_value, $unit);
} else {
$out_tstamp =~ s/\ /_/g; #needed by generating plots
$retval .= "$out_tstamp $out_value\n";
}
}
if(Scalar::Util::looks_like_number($sql_value)){
#nur setzen wenn nummerisch
$min[$i] = $sql_value if($sql_value < $min[$i]);
$max[$i] = $sql_value if($sql_value > $max[$i]);;
$sum[$i] += $sql_value;
$minval = $sql_value if($sql_value < $minval);
$maxval = $sql_value if($sql_value > $maxval);
} else {
$min[$i] = 0;
$max[$i] = 0;
$sum[$i] = 0;
$minval = 0;
$maxval = 0;
}
$cnt[$i]++;
$lastv[$i] = $sql_value;
$lastd[$i] = $sql_timestamp;
} #while fetchrow
######## den letzten Abschlusssatz rausschreiben ##########
if($readings[$i]->[3] && ($readings[$i]->[3] eq "delta-h" || $readings[$i]->[3] eq "delta-d")) {
$out_value = sprintf("%0.1f", $maxval - $minval);
$out_tstamp = DbLog_implode_datetime($lasttstamp{year}, $lasttstamp{month}, $lasttstamp{day}, $lasttstamp{hour}, "30", "00") if($readings[$i]->[3] eq "delta-h");
$out_tstamp = DbLog_implode_datetime($lasttstamp{year}, $lasttstamp{month}, $lasttstamp{day}, "00", "00", "00") if($readings[$i]->[3] eq "delta-d");
if(uc($outf) eq "ALL") {
$retval .= sprintf("%s: %s %s %s %s %s %s\n", $out_tstamp, $readings[$i]->[0], $type, $event, $readings[$i]->[1], $out_value, $unit);
} else {
$out_tstamp =~ s/\ /_/g; #needed by generating plots
$retval .= "$out_tstamp $out_value\n";
}
}
# DatenTrenner setzen
$retval .= "#$readings[$i]->[0]";
$retval .= ":";
$retval .= "$readings[$i]->[1]" if($readings[$i]->[1]);
$retval .= ":";
$retval .= "$readings[$i]->[2]" if($readings[$i]->[2]);
$retval .= ":";
$retval .= "$readings[$i]->[3]" if($readings[$i]->[3]);
$retval .= ":";
$retval .= "$readings[$i]->[4]" if($readings[$i]->[4]);
$retval .= "\n";
} #for @readings
#Ueberfuehren der gesammelten Werte in die globale Variable %data
for(my $j=0; $j<int(@readings); $j++) {
my $k = $j+1;
$data{"min$k"} = $min[$j] == 999999 ? "undef" : $min[$j];
$data{"max$k"} = $max[$j] == -999999 ? "undef" : $max[$j];
$data{"avg$k"} = $cnt[$j] ? sprintf("%0.1f", $sum[$j]/$cnt[$j]) : "undef";
$data{"sum$k"} = $sum[$j];
$data{"cnt$k"} = $cnt[$j] ? $cnt[$j] : "undef";
$data{"currval$k"} = $lastv[$j];
$data{"currdate$k"} = $lastd[$j];
}
if($internal) {
$internal_data = \$retval;
return undef;
}
return $retval;
}
################################################################
#
# Charting Specific functions start here
#
################################################################
################################################################
#
# Error handling, returns a JSON String
#
################################################################
sub jsonError($) {
my $errormsg = $_[0];
my $json = '{"success": "false", "msg":"'.$errormsg.'"}';
return $json;
}
################################################################
#
# Prepare the SQL String
#
################################################################
sub prepareSql(@) {
my ($hash, @a) = @_;
my $starttime = $_[5];
$starttime =~ s/_/ /;
my $endtime = $_[6];
$endtime =~ s/_/ /;
my $device = $_[7];
my $userquery = $_[8];
my $xaxis = $_[9];
my $yaxis = $_[10];
my $savename = $_[11];
my $jsonChartConfig = $_[12];
my $pagingstart = $_[13];
my $paginglimit = $_[14];
my $dbmodel = $hash->{DBMODEL};
my ($sql, $jsonstring, $countsql, $hourstats, $daystats, $weekstats, $monthstats, $yearstats);
if ($dbmodel eq "POSTGRESQL") {
### POSTGRESQL Queries for Statistics ###
### hour:
$hourstats = "SELECT to_char(timestamp, 'YYYY-MM-DD HH24:00:00') AS TIMESTAMP, SUM(VALUE::float) AS SUM, ";
$hourstats .= "AVG(VALUE::float) AS AVG, MIN(VALUE::float) AS MIN, MAX(VALUE::float) AS MAX, ";
$hourstats .= "COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$hourstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### day:
$daystats = "SELECT to_char(timestamp, 'YYYY-MM-DD 00:00:00') AS TIMESTAMP, SUM(VALUE::float) AS SUM, ";
$daystats .= "AVG(VALUE::float) AS AVG, MIN(VALUE::float) AS MIN, MAX(VALUE::float) AS MAX, ";
$daystats .= "COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$daystats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### week:
$weekstats = "SELECT date_trunc('week',timestamp) AS TIMESTAMP, SUM(VALUE::float) AS SUM, ";
$weekstats .= "AVG(VALUE::float) AS AVG, MIN(VALUE::float) AS MIN, MAX(VALUE::float) AS MAX, ";
$weekstats .= "COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$weekstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### month:
$monthstats = "SELECT to_char(timestamp, 'YYYY-MM-01 00:00:00') AS TIMESTAMP, SUM(VALUE::float) AS SUM, ";
$monthstats .= "AVG(VALUE::float) AS AVG, MIN(VALUE::float) AS MIN, MAX(VALUE::float) AS MAX, ";
$monthstats .= "COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$monthstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### year:
$yearstats = "SELECT to_char(timestamp, 'YYYY-01-01 00:00:00') AS TIMESTAMP, SUM(VALUE::float) AS SUM, ";
$yearstats .= "AVG(VALUE::float) AS AVG, MIN(VALUE::float) AS MIN, MAX(VALUE::float) AS MAX, ";
$yearstats .= "COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$yearstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
} elsif ($dbmodel eq "MYSQL") {
### MYSQL Queries for Statistics ###
### hour:
$hourstats = "SELECT date_format(timestamp, '%Y-%m-%d %H:00:00') AS TIMESTAMP, SUM(CAST(VALUE AS DECIMAL(12,4))) AS SUM, ";
$hourstats .= "AVG(CAST(VALUE AS DECIMAL(12,4))) AS AVG, MIN(CAST(VALUE AS DECIMAL(12,4))) AS MIN, ";
$hourstats .= "MAX(CAST(VALUE AS DECIMAL(12,4))) AS MAX, COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' ";
$hourstats .= "AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### day:
$daystats = "SELECT date_format(timestamp, '%Y-%m-%d 00:00:00') AS TIMESTAMP, SUM(CAST(VALUE AS DECIMAL(12,4))) AS SUM, ";
$daystats .= "AVG(CAST(VALUE AS DECIMAL(12,4))) AS AVG, MIN(CAST(VALUE AS DECIMAL(12,4))) AS MIN, ";
$daystats .= "MAX(CAST(VALUE AS DECIMAL(12,4))) AS MAX, COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' ";
$daystats .= "AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### week:
$weekstats = "SELECT date_format(timestamp, '%Y-%m-%d 00:00:00') AS TIMESTAMP, SUM(CAST(VALUE AS DECIMAL(12,4))) AS SUM, ";
$weekstats .= "AVG(CAST(VALUE AS DECIMAL(12,4))) AS AVG, MIN(CAST(VALUE AS DECIMAL(12,4))) AS MIN, ";
$weekstats .= "MAX(CAST(VALUE AS DECIMAL(12,4))) AS MAX, COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' ";
$weekstats .= "AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime' ";
$weekstats .= "GROUP BY date_format(timestamp, '%Y-%u 00:00:00') ORDER BY 1;";
### month:
$monthstats = "SELECT date_format(timestamp, '%Y-%m-01 00:00:00') AS TIMESTAMP, SUM(CAST(VALUE AS DECIMAL(12,4))) AS SUM, ";
$monthstats .= "AVG(CAST(VALUE AS DECIMAL(12,4))) AS AVG, MIN(CAST(VALUE AS DECIMAL(12,4))) AS MIN, ";
$monthstats .= "MAX(CAST(VALUE AS DECIMAL(12,4))) AS MAX, COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' ";
$monthstats .= "AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
### year:
$yearstats = "SELECT date_format(timestamp, '%Y-01-01 00:00:00') AS TIMESTAMP, SUM(CAST(VALUE AS DECIMAL(12,4))) AS SUM, ";
$yearstats .= "AVG(CAST(VALUE AS DECIMAL(12,4))) AS AVG, MIN(CAST(VALUE AS DECIMAL(12,4))) AS MIN, ";
$yearstats .= "MAX(CAST(VALUE AS DECIMAL(12,4))) AS MAX, COUNT(VALUE) AS COUNT FROM history WHERE READING = '$yaxis' ";
$yearstats .= "AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY 1 ORDER BY 1;";
} elsif ($hash->{DBMODEL} eq "SQLITE") {
### SQLITE Queries for Statistics ###
### hour:
$hourstats = "SELECT TIMESTAMP, SUM(CAST(VALUE AS FLOAT)) AS SUM, AVG(CAST(VALUE AS FLOAT)) AS AVG, ";
$hourstats .= "MIN(CAST(VALUE AS FLOAT)) AS MIN, MAX(CAST(VALUE AS FLOAT)) AS MAX, COUNT(VALUE) AS COUNT ";
$hourstats .= "FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$hourstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY strftime('%Y-%m-%d %H:00:00', TIMESTAMP);";
### day:
$daystats = "SELECT TIMESTAMP, SUM(CAST(VALUE AS FLOAT)) AS SUM, AVG(CAST(VALUE AS FLOAT)) AS AVG, ";
$daystats .= "MIN(CAST(VALUE AS FLOAT)) AS MIN, MAX(CAST(VALUE AS FLOAT)) AS MAX, COUNT(VALUE) AS COUNT ";
$daystats .= "FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$daystats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY strftime('%Y-%m-%d 00:00:00', TIMESTAMP);";
### week:
$weekstats = "SELECT TIMESTAMP, SUM(CAST(VALUE AS FLOAT)) AS SUM, AVG(CAST(VALUE AS FLOAT)) AS AVG, ";
$weekstats .= "MIN(CAST(VALUE AS FLOAT)) AS MIN, MAX(CAST(VALUE AS FLOAT)) AS MAX, COUNT(VALUE) AS COUNT ";
$weekstats .= "FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$weekstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY strftime('%Y-%W 00:00:00', TIMESTAMP);";
### month:
$monthstats = "SELECT TIMESTAMP, SUM(CAST(VALUE AS FLOAT)) AS SUM, AVG(CAST(VALUE AS FLOAT)) AS AVG, ";
$monthstats .= "MIN(CAST(VALUE AS FLOAT)) AS MIN, MAX(CAST(VALUE AS FLOAT)) AS MAX, COUNT(VALUE) AS COUNT ";
$monthstats .= "FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$monthstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY strftime('%Y-%m 00:00:00', TIMESTAMP);";
### year:
$yearstats = "SELECT TIMESTAMP, SUM(CAST(VALUE AS FLOAT)) AS SUM, AVG(CAST(VALUE AS FLOAT)) AS AVG, ";
$yearstats .= "MIN(CAST(VALUE AS FLOAT)) AS MIN, MAX(CAST(VALUE AS FLOAT)) AS MAX, COUNT(VALUE) AS COUNT ";
$yearstats .= "FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' ";
$yearstats .= "AND TIMESTAMP Between '$starttime' AND '$endtime' GROUP BY strftime('%Y 00:00:00', TIMESTAMP);";
} else {
$sql = "errordb";
}
if($userquery eq "getreadings") {
$sql = "SELECT distinct(reading) FROM history WHERE device = '".$device."'";
} elsif($userquery eq "getdevices") {
$sql = "SELECT distinct(device) FROM history";
} elsif($userquery eq "timerange") {
$sql = "SELECT ".$xaxis.", VALUE FROM history WHERE READING = '$yaxis' AND DEVICE = '$device' AND TIMESTAMP Between '$starttime' AND '$endtime';";
} elsif($userquery eq "hourstats") {
$sql = $hourstats;
} elsif($userquery eq "daystats") {
$sql = $daystats;
} elsif($userquery eq "weekstats") {
$sql = $weekstats;
} elsif($userquery eq "monthstats") {
$sql = $monthstats;
} elsif($userquery eq "yearstats") {
$sql = $yearstats;
} elsif($userquery eq "savechart") {
$sql = "INSERT INTO frontend (TYPE, NAME, VALUE) VALUES ('savedchart', '$savename', '$jsonChartConfig')";
} elsif($userquery eq "deletechart") {
$sql = "DELETE FROM frontend WHERE TYPE = 'savedchart' AND ID = '".$savename."'";
} elsif($userquery eq "getcharts") {
$sql = "SELECT * FROM frontend WHERE TYPE = 'savedchart'";
} elsif($userquery eq "getTableData") {
$countsql = "SELECT count(*) FROM history";
$sql = "SELECT * FROM history LIMIT ".$paginglimit." OFFSET ".$pagingstart;
return ($sql, $countsql);
} else {
$sql = "error";
}
return $sql;
}
################################################################
#
# Do the query
#
################################################################
sub chartQuery($@) {
my ($sql, $countsql) = prepareSql(@_);
if ($sql eq "error") {
return jsonError("Could not setup SQL String. Maybe the Database is busy, please try again!");
} elsif ($sql eq "errordb") {
return jsonError("The Database Type is not supported!");
}
my ($hash, @a) = @_;
my $dbhf= $hash->{DBHF};
my $totalcount;
if (defined $countsql && $countsql ne "") {
my $query_handle = $dbhf->prepare($countsql)
or return jsonError("Could not prepare statement: " . $dbhf->errstr . ", SQL was: " .$countsql);
$query_handle->execute()
or return jsonError("Could not execute statement: " . $query_handle->errstr);
my @data = $query_handle->fetchrow_array();
$totalcount = join(", ", @data);
}
# prepare the query
my $query_handle = $dbhf->prepare($sql)
or return jsonError("Could not prepare statement: " . $dbhf->errstr . ", SQL was: " .$sql);
# execute the query
$query_handle->execute()
or return jsonError("Could not execute statement: " . $query_handle->errstr);
my $columns = $query_handle->{'NAME'};
my $columncnt;
# When columns are empty but execution was successful, we have done a successful INSERT, UPDATE or DELETE
if($columns) {
$columncnt = scalar @$columns;
} else {
return '{"success": "true", "msg":"All ok"}';
}
my $i = 0;
my $jsonstring = '{"data":[';
while ( my @data = $query_handle->fetchrow_array()) {
if($i == 0) {
$jsonstring .= '{';
} else {
$jsonstring .= ',{';
}
for ($i = 0; $i < $columncnt; $i++) {
$jsonstring .= '"';
$jsonstring .= uc($query_handle->{NAME}->[$i]);
$jsonstring .= '":';
if (defined $data[$i]) {
my $fragment = substr($data[$i],0,1);
if ($fragment eq "{") {
$jsonstring .= $data[$i];
} else {
$jsonstring .= '"'.$data[$i].'"';
}
} else {
$jsonstring .= '""'
}
if($i != ($columncnt -1)) {
$jsonstring .= ',';
}
}
$jsonstring .= '}';
}
$jsonstring .= ']';
if (defined $totalcount && $totalcount ne "") {
$jsonstring .= ',"totalCount": '.$totalcount.'}';
} else {
$jsonstring .= '}';
}
return $jsonstring;
}
################################################################
# reload 93_DbLog.pm
# get DbLog_Bewaesserung - - 2012-06-22 2012-06-23 KS300:temperature:: KS300:humidity::
# get DbLog - - 2012-11-10_10 2012-11-10_20 KS300:rain:0:delta-h
# http://tulpemd.dyndns.org/fhem?cmd=showlog weblink_Bodenfeuchte_1 DbLog_Bodenfeuchte myDbLogtest null
#
# FileLog
# get FileLog_KS300 KS300-2012-11.log - 2012-11-10 2012-11-22 10:IR\x3a:0:delta-d
1;
=pod
=begin html
<a name="DbLog"></a>
<h3>DbLog</h3>
<ul>
<br>
<a name="DbLogdefine"></a>
<b>Define</b>
<ul>
<code>define &lt;name&gt; DbLog &lt;configfilename&gt; &lt;regexp&gt;</code>
<br><br>
Log events to a database. The database connection is defined in
<code>&lt;configfilename&gt;</code> (see sample configuration file
<code>contrib/dblog/db.conf</code>). The configuration is stored in a separate file
to avoid storing the password in the main configuration file and to have it
visible in the output of the <a href="../docs/commandref.html#list">list</a> command.
<br><br>
The modules <code>DBI</code> and <code>DBD::&lt;dbtype&gt;</code>
need to be installed (use <code>cpan -i &lt;module&gt;</code>
if your distribution does not have it).
<br><br>
<code>&lt;regexp&gt;</code> is the same as in <a href="../docs/commandref.html#FileLog">FileLog</a>.
<br><br>
Sample code to create a MySQL/PostgreSQL database is in
<code>&lt;DBType&gt;_create.sql</code>.
The database contains two tables: <code>current</code> and
<code>history</code>. The latter contains all events whereas the former only
contains the last event for any given reading and device.
The columns have the following meaning:
<ol>
<li>TIMESTAMP: timestamp of event, e.g. <code>2007-12-30 21:45:22</code></li>
<li>DEVICE: device name, e.g. <code>Wetterstation</code></li>
<li>TYPE: device type, e.g. <code>KS300</code></li>
<li>EVENT: event specification as full string,
e.g. <code>humidity: 71 (%)</code></li>
<li>READING: name of reading extracted from event,
e.g. <code>humidity</code></li>
<li>VALUE: actual reading extracted from event,
e.g. <code>71</code></li>
<li>UNIT: unit extracted from event, e.g. <code>%</code></li>
</ol>
The content of VALUE is optimized for automated post-processing, e.g.
<code>yes</code> is translated to <code>1</code>
<br><br>
The current values can be retrieved by the following code like FileLog:<br>
<ul>
<code>get myDbLog - - 2012-11-10 2012-11-10 KS300:temperature::</code>
</ul>
<br><br>
<b>Examples:</b>
<ul>
<code># log everything to database</code><br>
<code>define myDbLog DbLog /etc/fhem/db.conf .*:.*</code>
</ul>
</ul>
<a name="DbLogset"></a>
<b>Set</b> <ul>N/A</ul><br>
<a name="DbLogget"></a>
<b>Get</b>
<ul>
<code>get &lt;name&gt; &lt;infile&gt; &lt;outfile&gt; &lt;from&gt;
&lt;to&gt; &lt;column_spec&gt; </code>
<br><br>
Read data from the Database, used by frontends to plot data without direct
access to the Database.<br>
<ul>
<li>&lt;in&gt;<br>
A dummy parameter for FileLog compatibility. Always set to <code>-</code></li>
<li>&lt;out&gt;<br>
A dummy parameter for FileLog compatibility. Set it to <code>-</code>
to check the output for plot-computing.<br>Set it to the special keyword
<code>all</code> to get all columns from Database.</li>
<li>&lt;from&gt; / &lt;to&gt;<br>
Used to select the data. Please use the following timeformat or
an initial substring of it:<br>
<ul><code>YYYY-MM-DD_HH24:MI:SS</code></ul></li>
<li>&lt;column_spec&gt;<br>
For each column_spec return a set of data separated by
a comment line on the current connection.<br>
Syntax: &lt;device&gt;:&lt;reading&gt;:&lt;default&gt;:&lt;fn&gt;:&lt;regexp&gt;<br>
<ul>
<li>&lt;device&gt;<br>
The name of the device. Case sensitive</li>
<li>&lt;reading&gt;<br>
The reading of the given device to select. Case sensitive.
</li>
<li>&lt;default&gt;<br>
no implemented yet
</li>
<li>&lt;fn&gt;
One of the following:
<ul>
<li>int<br>
Extract the integer at the beginning of the string. Used e.g.
for constructs like 10%</li>
<li>int&lt;digit&gt;<br>
Extract the decimal digits including negative character and
decimal point at the beginning og the string. Used e.g.
for constructs like 15.7&deg;C</li>
<li>delta-h / delta-d<br>
Return the delta of the values for a given hour or a given day.
Used if the column contains a counter, as is the case for the
KS300 rain column.</li>
</ul></li>
<li>&lt;regexp&gt;<br>
The string is evaluated as a perl expression. $val is the
current value returned from the Database. The regexp is executed
before &lt;fn&gt; parameter.<br>
Note: The string/perl expression cannot contain spaces,
as the part after the space will be considered as the
next column_spec.
</li>
</ul></li>
</ul>
<br><br>
Examples:
<ul>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 KS300:temperature</code></li>
<li><code>get myDbLog - - 2012-11-10_10 2012-11-10_20 KS300:temperature::int1</code><br>
like from 10am until 08pm at 10.11.2012</li>
<li><code>get myDbLog - all 2012-11-10 2012-11-20 KS300:temperature</code></li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 KS300:temperature KS300:rain::delta-h KS300:rain::delta-d</code></li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 MyFS20:data:::$val=~s/(on|off).*/$1eq"on"?1:0/eg</code><br>
return 1 for all occurance of on* (on|on-for-timer etc) and 0 for all off*</li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 Bodenfeuchte:data:::$val=~s/.*B:\s([-\.\d]+).*/$1/eg</code><br>
Example of OWAD: value like this: <code>"A: 49.527 % B: 66.647 % C: 9.797 % D: 0.097 V"</code><br>
and output for port B is like this: <code>2012-11-20_10:23:54 66.647</code></li>
</ul>
<br><br>
</ul>
<b>Get</b> when used for webcharts
<ul>
<code>get &lt;name&gt; &lt;infile&gt; &lt;outfile&gt; &lt;from&gt;
&lt;to&gt; &lt;device&gt; &lt;querytype&gt; &lt;xaxis&gt; &lt;yaxis&gt; &lt;savename&gt; </code>
<br><br>
Query the Database to retrieve JSON-Formatted Data, which is used by the charting frontend.
<br>
<ul>
<li>&lt;name&gt;<br>
The name of the defined DbLog, like it is given in fhem.cfg.</li>
<li>&lt;in&gt;<br>
A dummy parameter for FileLog compatibility. Always set to <code>-</code></li>
<li>&lt;out&gt;<br>
A dummy parameter for FileLog compatibility. Set it to <code>webchart</code>
to use the charting related get function.
</li>
<li>&lt;from&gt; / &lt;to&gt;<br>
Used to select the data. Please use the following timeformat:<br>
<ul><code>YYYY-MM-DD_HH24:MI:SS</code></ul></li>
<li>&lt;device&gt;<br>
A string which represents the device to query.</li>
<li>&lt;querytype&gt;<br>
A string which represents the method the query should use. Actually supported values are: <br>
<code>getreadings</code> to retrieve the possible readings for a given device<br>
<code>getdevices</code> to retrieve all available devices<br>
<code>timerange</code> to retrieve charting data, which requires a given xaxis, yaxis, device, to and from<br>
<code>savechart</code> to save a chart configuration in the database. Requires a given xaxis, yaxis, device, to and from, and a 'savename' used to save the chart<br>
<code>deletechart</code> to delete a saved chart. Requires a given id which was set on save of the chart<br>
<code>getcharts</code> to get a list of all saved charts.<br>
<code>getTableData</code> to get jsonformatted data from the database. Uses paging Parameters like start and limit.<br>
<code>hourstats</code> to get statistics for a given value (yaxis) for an hour.<br>
<code>daystats</code> to get statistics for a given value (yaxis) for a day.<br>
<code>weekstats</code> to get statistics for a given value (yaxis) for a week.<br>
<code>monthstats</code> to get statistics for a given value (yaxis) for a month.<br>
<code>yearstats</code> to get statistics for a given value (yaxis) for a year.<br>
</li>
<li>&lt;xaxis&gt;<br>
A string which represents the xaxis</li>
<li>&lt;yaxis&gt;<br>
A string which represents the yaxis</li>
<li>&lt;savename&gt;<br>
A string which represents the name a chart will be saved with</li>
<li>&lt;chartconfig&gt;<br>
A jsonstring which represents the chart to save</li>
<li>&lt;pagingstart&gt;<br>
An integer used to determine the start for the sql used for query 'getTableData'</li>
<li>&lt;paginglimit&gt;<br>
An integer used to set the limit for the sql used for query 'getTableData'</li>
</ul>
<br><br>
Examples:
<ul>
<li><code>get logdb - webchart "" "" "" getcharts</code><br>
Retrieves all saved charts from the Database</li>
<li><code>get logdb - webchart "" "" "" getdevices</code><br>
Retrieves all available devices from the Database</li>
<li><code>get logdb - webchart "" "" ESA2000_LED_011e getreadings</code><br>
Retrieves all available Readings for a given device from the Database</li>
<li><code>get logdb - webchart 2013-02-11_00:00:00 2013-02-12_00:00:00 ESA2000_LED_011e timerange TIMESTAMP day_kwh</code><br>
Retrieves charting data, which requires a given xaxis, yaxis, device, to and from<br>
Will ouput a JSON like this: <code>[{'TIMESTAMP':'2013-02-11 00:10:10','VALUE':'0.22431388090756'},{'TIMESTAMP'.....}]</code></li>
<li><code>get logdb - webchart 2013-02-11_00:00:00 2013-02-12_00:00:00 ESA2000_LED_011e savechart TIMESTAMP day_kwh tageskwh</code><br>
Will save a chart in the database with the given name and the chart configuration parameters</li>
<li><code>get logdb - webchart "" "" "" deletechart "" "" 7</code><br>
Will delete a chart from the database with the given id</li>
</ul>
<br><br>
</ul>
<a name="DbLogattr"></a>
<b>Attributes</b> <ul>N/A</ul><br>
</ul>
=end html
=begin html_DE
<a name="DbLog"></a>
<h3>DbLog</h3>
<ul>
<br>
<a name="DbLogdefine"></a>
<b>Define</b>
<ul>
<code>define &lt;name&gt; DbLog &lt;configfilename&gt; &lt;regexp&gt;</code>
<br><br>
Speichert Events in eine Datenbank. Die Datenbankverbindungsparameter werden
definiert in <code>&lt;configfilename&gt;</code>. (Vergleiche
Beipspielkonfigurationsdatei in <code>contrib/dblog/db.conf</code>).<br>
Die Konfiguration ist in einer sparaten Datei abgelegt um das Datenbankpasswort
nicht in Klartext in der FHEM-Haupt-Konfigurationsdatei speichern zu müssen.
Ansonsten wäre es mittels des <a href="../docs/commandref.html#list">list</a>
Befehls einfach auslesbar.
<br><br>
Die Perl-Module <code>DBI</code> and <code>DBD::&lt;dbtype&gt;</code>
müssen installiert werden (use <code>cpan -i &lt;module&gt;</code>
falls die eigene Distribution diese nicht schon mitbringt).
<br><br>
<code>&lt;regexp&gt;</code> ist identisch wie <a href="../docs/commandref.html#FileLog">FileLog</a>.
<br><br>
Ein Beispielcode zum Erstellen einer MySQL/PostGreSQL Datenbak ist in
<code>contrib/dblog/&lt;DBType&gt;_create.sql</code> zu finden.
Die Datenbank beinhaltet 2 Tabellen: <code>current</code> und
<code>history</code>. Die Tabelle <code>current</code> enthält den letzten Stand
pro Device und Reading. In der Tabelle <code>history</code> sind alle
Events historisch gespeichert.
Die Tabellenspalten haben folgende Bedeutung:
<ol>
<li>TIMESTAMP: Zeitpunkt des Events, z.B. <code>2007-12-30 21:45:22</code></li>
<li>DEVICE: name des Devices, z.B. <code>Wetterstation</code></li>
<li>TYPE: Type des Devices, z.B. <code>KS300</code></li>
<li>EVENT: das auftretende Event als volle Zeichenkette
z.B. <code>humidity: 71 (%)</code></li>
<li>READING: Name des Readings, ermittelt aus dem Event,
z.B. <code>humidity</code></li>
<li>VALUE: aktueller Wert des Readings, ermittelt aus dem Event,
z.B. <code>71</code></li>
<li>UNIT: Einheit, ermittelt aus dem Event, z.B. <code>%</code></li>
</ol>
Der Wert des Rreadings ist optimiert für eine automatisierte Nachverarbeitung
z.B. <code>yes</code> ist transformiert nach <code>1</code>
<br><br>
Die gespeicherten Werte können mittels GET Funktion angezeigt werden:
<ul>
<code>get myDbLog - - 2012-11-10 2012-11-10 KS300:temperature</code>
</ul>
<br><br>
<b>Beispiel:</b>
<ul>
<code>Speichert alles in der Datenbank</code><br>
<code>define myDbLog DbLog /etc/fhem/db.conf .*:.*</code>
</ul>
</ul>
<a name="DbLogset"></a>
<b>Set</b> <ul>N/A</ul><br>
<a name="DbLogget"></a>
<b>Get</b>
<ul>
<code>get &lt;name&gt; &lt;infile&gt; &lt;outfile&gt; &lt;from&gt;
&lt;to&gt; &lt;column_spec&gt; </code>
<br><br>
Ließt Daten aus der Datenbank. Wird durch die Frontends benutzt um Plots
zu generieren ohne selbst auf die Datenank zugreifen zu müssen.
<br>
<ul>
<li>&lt;in&gt;<br>
Ein Dummy Parameter um eine Kompatibilität zum Filelog herzustellen.
Dieser Parameter ist immer auf <code>-</code> zu setzen.
</li>
<li>&lt;out&gt;<br>
Ein Dummy Parameter um eine Kompatibilität zum Filelog herzustellen.
Dieser Parameter ist immer auf <code>-</code> zu setzen um die
Ermittlung der Daten aus der Datenbank für die Plotgenerierung zu prüfen.<br>
Durchd ie Angabe des Schlüsselworts <code>all</code> werden alle
Spalten der Datenbank ausgegeben.
</li>
<li>&lt;from&gt; / &lt;to&gt;<br>
Wird benutzt um den Zeitraum der Daten einzugrenzen. Es ist das folgende
Zeitformat oder ein Teilstring davon zu benutzen:<br>
<ul><code>YYYY-MM-DD_HH24:MI:SS</code></ul></li>
<li>&lt;column_spec&gt;<br>
Für jede column_spec Gruppe wird ein Datenset zurückgegeben welches
durch einen Kommentar getrennt wird. Dieser Kommentar repräsentiert
die column_spec.<br>
Syntax: &lt;device&gt;:&lt;reading&gt;:&lt;default&gt;:&lt;fn&gt;:&lt;regexp&gt;<br>
<ul>
<li>&lt;device&gt;<br>
Der Name des Devices. Achtung: Groß/Kleinschreibung beachten!</li>
<li>&lt;reading&gt;<br>
Das REading des angegebenen Devices zur Datenselektion.
Achtung: Groß/Kleinschreibung beachten!
</li>
<li>&lt;default&gt;<br>
Zur Zeit noch nicht implementiert.
</li>
<li>&lt;fn&gt;
Angabe einer speziellen Funktion:
<ul>
<li>int<br>
Ermittelt den Zahlenwert ab dem Anfang der Zeichenkette aus der
Spalte "VALUE". Benutzt z.B. für Ausprägungen wie 10%.
</li>
<li>int&lt;digit&gt;<br>
Ermittelt den Zahlenwert ab dem Anfang der Zeichenkette aus der
Spalte "VALUE", inclusive negativen Vorzeichen und Dezimaltrenner.
Benutzt z.B. für Ausprägungen wie -5.7&deg;C.
</li>
<li>delta-h / delta-d<br>
Ermittelt die relative Veränderung eines Zahlenwertes pro Stunde
oder pro Tag. Wird benutzt z.B. für Spalten die einen
hochlaufenden Zähler enthalten wie im Falle für ein KS300 Regenzähler
oder dem 1-wire Modul OWCOUNT.
</li>
</ul></li>
<li>&lt;regexp&gt;<br>
Diese Zeichenkette wird als Perl Befehl ausgewertet. $val ist der
aktuelle Wert die die Datenbank für ein Device/Reading ausgibt.
Die regexp wird vor dem angegebenen &lt;fn&gt; Parameter ausgeführt.
<br>
Bitte zur Beachtung: Diese Zeichenkette darf keine Leerzeichen
enthalten da diese sonst als &lt;column_spec&gt; Trennung
interpretiert werden und alles nach dem Leerzeichen als neue
&lt;column_spec&gt; gesehen wird.
</li>
</ul></li>
</ul>
<br><br>
<b>Beispiele:</b>
<ul>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 KS300:temperature</code></li>
<li><code>get myDbLog - - 2012-11-10_10 2012-11-10_20 KS300:temperature::int1</code><br>
gibt Daten aus von 10Uhr bis 20Uhr am 10.11.2012</li>
<li><code>get myDbLog - all 2012-11-10 2012-11-20 KS300:temperature</code></li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 KS300:temperature KS300:rain::delta-h KS300:rain::delta-d</code></li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 MyFS20:data:::$val=~s/(on|off).*/$1eq"on"?1:0/eg</code><br>
gibt 1 zurück für alle Ausprägungen von on* (on|on-for-timer etc) und 0 für alle off*</li>
<li><code>get myDbLog - - 2012-11-10 2012-11-20 Bodenfeuchte:data:::$val=~s/.*B:\s([-\.\d]+).*/$1/eg</code><br>
Beispiel von OWAD: Ein Wert wie z.B.: <code>"A: 49.527 % B: 66.647 % C: 9.797 % D: 0.097 V"</code><br>
und die Ausgabe ist für das Reading B folgende: <code>2012-11-20_10:23:54 66.647</code></li>
</ul>
<br><br>
</ul>
<b>Get</b> für die Nutzung von webcharts
<ul>
<code>get &lt;name&gt; &lt;infile&gt; &lt;outfile&gt; &lt;from&gt;
&lt;to&gt; &lt;device&gt; &lt;querytype&gt; &lt;xaxis&gt; &lt;yaxis&gt; &lt;savename&gt; </code>
<br><br>
Liest Daten aus der Datenbank aus und gibt diese in JSON formatiert aus. Wird für das Charting Frontend genutzt
<br>
<ul>
<li>&lt;name&gt;<br>
Der Name des definierten DbLogs, so wie er in der fhem.cfg angegeben wurde.</li>
<li>&lt;in&gt;<br>
Ein Dummy Parameter um eine Kompatibilität zum Filelog herzustellen.
Dieser Parameter ist immer auf <code>-</code> zu setzen.</li>
<li>&lt;out&gt;<br>
Ein Dummy Parameter um eine Kompatibilität zum Filelog herzustellen.
Dieser Parameter ist auf <code>webchart</code> zu setzen um die Charting Get Funktion zu nutzen.
</li>
<li>&lt;from&gt; / &lt;to&gt;<br>
Wird benutzt um den Zeitraum der Daten einzugrenzen. Es ist das folgende
Zeitformat zu benutzen:<br>
<ul><code>YYYY-MM-DD_HH24:MI:SS</code></ul></li>
<li>&lt;device&gt;<br>
Ein String, der das abzufragende Device darstellt.</li>
<li>&lt;querytype&gt;<br>
Ein String, der die zu verwendende Abfragemethode darstellt. Zur Zeit unterstützte Werte sind: <br>
<code>getreadings</code> um für ein bestimmtes device alle Readings zu erhalten<br>
<code>getdevices</code> um alle verfügbaren devices zu erhalten<br>
<code>timerange</code> um Chart-Daten abzufragen. Es werden die Parameter 'xaxis', 'yaxis', 'device', 'to' und 'from' benötigt<br>
<code>savechart</code> um einen Chart unter Angabe eines 'savename' und seiner zugehörigen Konfiguration abzuspeichern<br>
<code>deletechart</code> um einen zuvor gespeicherten Chart unter Angabe einer id zu löschen<br>
<code>getcharts</code> um eine Liste aller gespeicherten Charts zu bekommen.<br>
<code>getTableData</code> um Daten aus der Datenbank abzufragen und in einer Tabelle darzustellen. Benötigt paging Parameter wie start und limit.<br>
<code>hourstats</code> um Statistiken für einen Wert (yaxis) für eine Stunde abzufragen.<br>
<code>daystats</code> um Statistiken für einen Wert (yaxis) für einen Tag abzufragen.<br>
<code>weekstats</code> um Statistiken für einen Wert (yaxis) für eine Woche abzufragen.<br>
<code>monthstats</code> um Statistiken für einen Wert (yaxis) für einen Monat abzufragen.<br>
<code>yearstats</code> um Statistiken für einen Wert (yaxis) für ein Jahr abzufragen.<br>
</li>
<li>&lt;xaxis&gt;<br>
Ein String, der die X-Achse repräsentiert</li>
<li>&lt;yaxis&gt;<br>
Ein String, der die Y-Achse repräsentiert</li>
<li>&lt;savename&gt;<br>
Ein String, unter dem ein Chart in der Datenbank gespeichert werden soll</li>
<li>&lt;chartconfig&gt;<br>
Ein jsonstring der den zu speichernden Chart repräsentiert</li>
<li>&lt;pagingstart&gt;<br>
Ein Integer um den Startwert für die Abfrage 'getTableData' festzulegen</li>
<li>&lt;paginglimit&gt;<br>
Ein Integer um den Limitwert für die Abfrage 'getTableData' festzulegen</li>
</ul>
<br><br>
Beispiele:
<ul>
<li><code>get logdb - webchart "" "" "" getcharts</code><br>
Liefert alle gespeicherten Charts aus der Datenbank</li>
<li><code>get logdb - webchart "" "" "" getdevices</code><br>
Liefert alle verfügbaren Devices aus der Datenbank</li>
<li><code>get logdb - webchart "" "" ESA2000_LED_011e getreadings</code><br>
Liefert alle verfügbaren Readings aus der Datenbank unter Angabe eines Gerätes</li>
<li><code>get logdb - webchart 2013-02-11_00:00:00 2013-02-12_00:00:00 ESA2000_LED_011e timerange TIMESTAMP day_kwh</code><br>
Liefert Chart-Daten, die auf folgenden Parametern basieren: 'xaxis', 'yaxis', 'device', 'to' und 'from'<br>
Die Ausgabe erfolgt als JSON, z.B.: <code>[{'TIMESTAMP':'2013-02-11 00:10:10','VALUE':'0.22431388090756'},{'TIMESTAMP'.....}]</code></li>
<li><code>get logdb - webchart 2013-02-11_00:00:00 2013-02-12_00:00:00 ESA2000_LED_011e savechart TIMESTAMP day_kwh tageskwh</code><br>
Speichert einen Chart unter Angabe eines 'savename' und seiner zugehörigen Konfiguration</li>
<li><code>get logdb - webchart "" "" "" deletechart "" "" 7</code><br>
Löscht einen zuvor gespeicherten Chart unter Angabe einer id</li>
</ul>
<br><br>
</ul>
<a name="DbLogattr"></a>
<b>Attributes</b> <ul>N/A</ul><br>
</ul>
=end html_DE
=cut
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