X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=dbi2mongo.pl;h=7644a4adc8729fa3f10c1ed5eff5bf4ae7040dff;hb=9362eb35a55188edd5193aff96c084ff37748e62;hp=faf4da7ff738c4aaffd573f11f076930610b32d8;hpb=1dfe6030765620a1be32bb5e8a81adcf61b692fb;p=mongodb-experiments.git

diff --git a/dbi2mongo.pl b/dbi2mongo.pl
index faf4da7..7644a4a 100755
--- a/dbi2mongo.pl
+++ b/dbi2mongo.pl
@@ -1,27 +1,32 @@
 #!/usr/bin/perl -w
 
 sub BEGIN {
-$ENV{DBI_AUTOPROXY}='dbi:Gofer:transport=stream;url=ssh:dpavlin@koha.ffzg.hr';
+#$ENV{DBI_AUTOPROXY}='dbi:Gofer:transport=stream;url=ssh:dpavlin@koha.ffzg.hr';
 }
 
 use strict;
 use DBI;
 use MongoDB;
 use Data::Dump qw/dump/;
+use Getopt::Long;
 
-$|++;
+my $debug = 0;
+my $drop = 0;
+my $limit = 10000;
 
-my $debug = @ARGV ? 1 : 0;
+GetOptions(
+	'debug!'  => \$debug,
+	'drop!'   => \$drop,
+	'limit=i' => \$limit,
+) || die $!;
 
 our ( $dbi, $user, $password ) = ( "DBI:mysql:database=test" );
-our ( $database, $collection ) = ( 'test', 'test' );
+our ( $database, $collection ) = ( '', '' );
 our ( $table,  $pk ) = ( 'biblio'      => 'biblionumber' );
 our ( $table2, $fk ) = ( 'biblioitems' => 'biblionumber' );
 
-my $limit      = 50000;
-my $join_limit = 10000;
-
-require 'config.pl';
+my $config = shift @ARGV || die "usage: $0 config.pl\n";
+require $config;
 
 warn "# $dbi $user -> $database $collection $table.$pk<->$table2.$fk\n";
 
@@ -33,7 +38,7 @@ my $dbh  = DBI->connect($dbi,$user,$password, {
 #	mysql_enable_utf8 => 1,
 });
 
-$db->drop if $debug;
+$db->drop if $drop;
 
 # db.items.find().sort({_id:-1}).limit(1);
 my $last = $coll->query()->sort({ '_id' => -1 })->limit(1)->next;
@@ -42,23 +47,41 @@ my $last_id = $last->{_id} || 0;
 
 print "import $table.$pk > $last_id from $dbi\n";
 
-my $sth = $dbh->prepare(qq{
-	select
-		$pk as _id,
-		$table.*
-	from $table
-	where $pk > ?
-	order by $pk asc
-	limit $limit
-});
+our $offset = 0;
+our $sth;
+
+sub select_table {
+
+	$sth = $dbh->prepare(qq{
+		select
+			$pk as _id,
+			$table.*
+		from $table
+		where $pk > ?
+		order by $pk asc
+		limit $limit
+		offset $offset
+	});
 
-$sth->execute( $last_id );
-warn "# $table columns ",dump( $sth->{NAME} );
-print "import ",$sth->rows," from $table\n";
+	print STDERR " $table:$offset ";
+	$sth->execute( $last_id );
+#	warn "# $table columns ",dump( $sth->{NAME} ) if $offset == 0;
+	print STDERR " join ", $sth->rows, " rows ";
+}
+
+our $row;
+sub fetch_row {
+	$row = $sth->fetchrow_hashref();
+	if ( ! $row && $sth->rows == $limit ) {
+		$offset += $limit;
+		select_table;
+		$row = $sth->fetchrow_hashref();
+	}
+	return $row;
+}
 
 our $join_offset = 0;
 our $sth_join;
-our $join_more = 0;
 
 sub join_table {
 	$sth_join = $dbh->prepare(qq{
@@ -67,22 +90,20 @@ sub join_table {
 		from $table2
 		where $fk > ?
 		order by $fk asc
- 		limit $join_limit
+ 		limit $limit
 		offset $join_offset
 	});
-	print STDERR "$join_offset";
+	print STDERR " $table2:$join_offset ";
 	$sth_join->execute( $last_id );
-	warn "# $table2 columns ",dump( $sth_join->{NAME} );
-	print "join ",$sth_join->rows," from $table2 offset $join_offset limit $join_limit\n";
-	$join_more = $sth_join->rows == $join_limit ? 1 : 0;
+#	warn "# $table2 columns ",dump( $sth_join->{NAME} ) if $join_offset = 0;
+	print STDERR " join ",$sth_join->rows, " rows ";
 }
 
 our $row_join;
-
 sub fetch_row_join {
 	$row_join = $sth_join->fetchrow_hashref();
-	if ( ! $row_join && $join_more ) {
-		$join_offset += $join_limit;
+	if ( ! $row_join && $sth_join->rows == $limit ) {
+		$join_offset += $limit;
 		join_table;
 		$row_join = $sth_join->fetchrow_hashref();
 	}
@@ -95,10 +116,11 @@ sub guess_types {
 	return $row;
 }
 
+select_table;
 join_table;
 fetch_row_join;
 
-while (my $row = $sth->fetchrow_hashref() ) {
+while (my $row = fetch_row() ) {
 
 	while ( $row_join && $row_join->{$fk} < $row->{$pk} ) {
 		fetch_row_join;