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index f82a0d9738fdab6b2561b63afd171c3a5646edc6..5bee915c414a74b42152acc92d4beaf4bd8dd92b 100644 (file)
-package DBsqlite;
+package GOSA::DBsqlite;
use strict;
my $object = shift;
my $table_name = shift;
my $col_names_ref = shift;
- my $sql_statement = "CREATE TABLE IF NOT EXISTS $table_name (".join(', ', @{$col_names_ref}).")";
+# unshift(@{$col_names_ref}, "id INTEGER PRIMARY KEY AUTOINCREMENT");
+ my $col_names_string = join(', ', @{$col_names_ref});
+ my $sql_statement = "CREATE TABLE IF NOT EXISTS $table_name ( $col_names_string )";
$object->{dbh}->do($sql_statement);
return 0;
}
if (not defined $table) {
return 1;
}
-
- # incrementing running id
- if (not exists $arg->{id}) {
- my $max_id = @{@{$obj->{dbh}->selectall_arrayref("SELECT MAX(id) FROM $table")}[0]}[0];
- if (not defined $max_id) {
- $max_id = 0;
- }
- $arg->{id} = $max_id + 1;
- }
-
-
- # fetch column names of table
- my $col_names = $obj->get_table_columns($table);
-
- # assign values to column name variables
- my @add_list;
- foreach my $col_name (@{$col_names}) {
- if (exists $arg->{$col_name}) {
- push(@add_list, $arg->{$col_name});
- } else {
- my $default_val = "none";
- if ($col_name eq "timestamp") {
- $default_val = "19700101000000";
- }
- push(@add_list, $default_val);
- }
-
- }
- # check wether id does not exists in table, otherwise return errorflag 2
- my $res = @{$obj->{dbh}->selectall_arrayref( "SELECT * FROM $table WHERE id='$arg->{id}'")};
- if ($res != 0) {
+ # specify primary key in table
+ my $primkey = $arg->{primkey};
+
+ # check wether value to primary key is specified
+ if ( ( defined $primkey ) && ( not $arg->{ $primkey } ) ) {
return 2;
}
+
+ # if timestamp is not provided, add timestamp
+ if( not exists $arg->{timestamp} ) {
+ $arg->{timestamp} = &get_time;
+ }
- my $sql_statement = " INSERT INTO $table VALUES ('".join("', '", @add_list)."') ";
- print " INSERT INTO $table VALUES ('".join("', '", @add_list)."')\n";
- $obj->{dbh}->do($sql_statement);
+ # check wether primkey is unique in table, otherwise return errorflag 3
+ my $res = @{ $obj->{dbh}->selectall_arrayref( "SELECT * FROM $table WHERE $primkey='$arg->{$primkey}'") };
+ if ($res == 0) {
+ # fetch column names of table
+ my $col_names = $obj->get_table_columns($table);
+
+ # assign values to column name variables
+ my @add_list;
+ foreach my $col_name (@{$col_names}) {
+ # use function parameter for column values
+ if (exists $arg->{$col_name}) {
+ push(@add_list, $arg->{$col_name});
+ }
+ }
+
+ my $sql_statement = " INSERT INTO $table VALUES ('".join("', '", @add_list)."')";
+ my $db_res = $obj->{dbh}->do($sql_statement);
+ if( $db_res != 1 ) {
+ return 1;
+ } else {
+ return 0;
+ }
- return 0;
+ } else {
+ my $update_hash = { table=>$table };
+ $update_hash->{where} = [ { $primkey=>[ $arg->{$primkey} ] } ];
+ $update_hash->{update} = [ {} ];
+ while( my ($pram, $val) = each %{$arg} ) {
+ if( $pram eq 'table' ) { next; }
+ if( $pram eq 'primkey' ) { next; }
+ $update_hash->{update}[0]->{$pram} = [$val];
+ }
+ my $db_res = &update_dbentry( $obj, $update_hash );
+ if( $db_res != 1 ) {
+ return 1;
+ } else {
+ return 0;
+ }
+ }
}
-sub change_dbentry {
+
+# error-flags
+# 1 no table ($table) defined
+# 2 no restriction parameter ($restric_pram) defined
+# 3 no restriction value ($restric_val) defined
+# 4 column name not known in table
+# 5 no column names to change specified
+sub update_dbentry {
my $obj = shift;
my $arg = shift;
} else {
delete $arg->{table};
}
+
# extract where parameter from arg hash
- my $restric_pram = $arg->{where};
- if (not defined $restric_pram) {
- return 2;
- } else {
- delete $arg->{'where'};
- }
- # extrac where value from arg hash
- my $restric_val = $arg->{$restric_pram};
- if (not defined $restric_val) {
- return 3;
- } else {
- delete $arg->{$restric_pram};
- }
-
- # check wether table has all specified columns
- my $columns = {};
- my @res = @{$obj->{dbh}->selectall_arrayref("pragma table_info('$table')")};
- foreach my $column (@res) {
- $columns->{@$column[1]} = "";
- }
- my @pram_list = keys %$arg;
- foreach my $pram (@pram_list) {
- if (not exists $columns->{$pram}) {
- return 4;
+ my $where_statement = "";
+ if( exists $arg->{where} ) {
+ my $where_hash = @{ $arg->{where} }[0];
+ if( 0 < keys %{ $where_hash } ) {
+ my @where_list;
+ while( my ($rest_pram, $rest_val) = each %{ $where_hash } ) {
+ my $statement;
+ if( $rest_pram eq 'timestamp' ) {
+ $statement = "$rest_pram<'@{ $rest_val }[0]'";
+ } else {
+ $statement = "$rest_pram='@{ $rest_val }[0]'";
+ }
+ push( @where_list, $statement );
+ }
+ $where_statement .= "WHERE ".join('AND ', @where_list);
}
}
-
-
- # select all changes
- my @change_list;
- my $sql_part;
- while (my($pram, $val) = each(%{$arg})) {
- push(@change_list, "$pram='$val'");
- }
-
- if (not@change_list) {
- return 5;
+ # extract update parameter from arg hash
+ my $update_hash = @{ $arg->{update} }[0];
+ my $update_statement = "";
+ if( 0 < keys %{ $update_hash } ) {
+ my @update_list;
+ while( my ($rest_pram, $rest_val) = each %{ $update_hash } ) {
+ my $statement = "$rest_pram='@{ $rest_val }[0]'";
+ push( @update_list, $statement );
+ }
+ $update_statement .= join(', ', @update_list);
}
- $obj->{dbh}->do("UPDATE $table SET ".join(', ',@change_list)." WHERE $restric_pram='$restric_val'");
- return 0;
+ my $sql_statement = "UPDATE $table SET $update_statement $where_statement";
+ my $db_answer = $obj->{dbh}->do($sql_statement);
+ return $db_answer;
}
} else {
delete $arg->{table};
}
- # extract where parameter from arg hash
- my $restric_pram = $arg->{where};
- if (not defined $restric_pram) {
- return 2;
- } else {
- delete $arg->{'where'};
+
+ # collect select statements
+ my @del_list;
+ while (my ($pram, $val) = each %{$arg}) {
+ if ( $pram eq 'timestamp' ) {
+ push(@del_list, "$pram < '$val'");
+ } else {
+ push(@del_list, "$pram = '$val'");
+ }
}
- # extrac where value from arg hash
- my $restric_val = $arg->{$restric_pram};
- if (not defined $restric_val) {
- return 3;
+
+ my $where_statement;
+ if( not @del_list ) {
+ $where_statement = "";
} else {
- delete $arg->{$restric_pram};
- }
-
- # check wether entry exists
- my $res = @{$obj->{dbh}->selectall_arrayref( "SELECT * FROM $table WHERE $restric_pram='$restric_val'")};
- if ($res == 0) {
- return 4;
+ $where_statement = "WHERE ".join(' AND ', @del_list);
}
- $obj->{dbh}->do("DELETE FROM $table WHERE $restric_pram='$restric_val'");
+ my $sql_statement = "DELETE FROM $table $where_statement";
+ my $db_res = $obj->{dbh}->do($sql_statement);
- return 0;
+ return $db_res;
}
# collect select statements
my @select_list;
- my $sql_part;
+ my $sql_statement;
while (my ($pram, $val) = each %{$arg}) {
- push(@select_list, "$pram = '$val'");
+ if ( $pram eq 'timestamp' ) {
+ push(@select_list, "$pram < '$val'");
+ } else {
+ push(@select_list, "$pram = '$val'");
+ }
}
+
+ if (@select_list == 0) {
+ $sql_statement = "SELECT ROWID, * FROM '$table'";
+ } else {
+ $sql_statement = "SELECT ROWID, * FROM '$table' WHERE ".join(' AND ', @select_list);
+ }
+
+ # query db
+ my $query_answer = $obj->{dbh}->selectall_arrayref($sql_statement);
+
+ # fetch column list of db and create a hash with column_name->column_value of the select query
+ my $column_list = &get_table_columns($obj, $table);
+ my $list_len = @{ $column_list } ;
+ my $answer = {};
+ my $hit_counter = 0;
+
- my $sql_statement = "SELECT * FROM 'jobs' WHERE ".join(' AND ', @select_list);
- my $answer = $obj->{dbh}->selectall_arrayref($sql_statement);
+ foreach my $hit ( @{ $query_answer }) {
+ $hit_counter++;
+ $answer->{ $hit_counter }->{ 'ROWID' } = shift @{ $hit };
+ for ( my $i = 0; $i < $list_len; $i++) {
+ $answer->{ $hit_counter }->{ @{ $column_list }[$i] } = @{ $hit }[$i];
+ }
+ }
return $answer;
}
sub show_table {
my $obj = shift;
my $table_name = shift;
- my @res = @{$obj->{dbh}->selectall_arrayref( "SELECT * FROM $table_name")};
+ my @res = @{$obj->{dbh}->selectall_arrayref( "SELECT ROWID, * FROM $table_name")};
my @answer;
foreach my $hit (@res) {
push(@answer, "hit: ".join(', ', @{$hit}));
return \@res;
}
+sub get_time {
+ my ($seconds, $minutes, $hours, $monthday, $month,
+ $year, $weekday, $yearday, $sommertime) = localtime(time);
+ $hours = $hours < 10 ? $hours = "0".$hours : $hours;
+ $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
+ $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
+ $month+=1;
+ $month = $month < 10 ? $month = "0".$month : $month;
+ $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
+ $year+=1900;
+ return "$year$month$monthday$hours$minutes$seconds";
+}
+
+
1;