new mig-loadbibs

[migration-tools.git] / mig-bin / mig-stagebibs

diff --git a/mig-bin/mig-stagebibs b/mig-bin/mig-stagebibs
new file mode 100755 (executable)
index 0000000..fb76b0c
--- /dev/null
+++ b/mig-bin/mig-stagebibs
@@ -0,0 +1,190 @@
+#!/usr/bin/perl
+
+###############################################################################
+=pod
+
+=item B<stagebibs> --file foo.xml
+
+Takes a load of bibs from a UTF-8 MARC XML  file and loads them into mig staging 
+table of bibio_record_entry.  This is done with no checking of file validity 
+so records should be checked before hand and cleaned.
+
+Takes one  optional arguments:
+
+--source
+
+Sets an x_source value on the staging table to the one supplied instead of the 
+default of none.
+
+=back
+
+=cut
+
+###############################################################################
+
+use strict;
+use warnings;
+
+use DBI;
+#binmode STDIN, ':bytes';
+use Env qw(
+    HOME PGHOST PGPORT PGUSER PGDATABASE MIGSCHEMA
+    MIGBASEWORKDIR MIGBASEGITDIR MIGGITDIR MIGWORKDIR
+);
+use Data::Dumper;
+use Pod::Usage;
+use Switch;
+use Cwd 'abs_path';
+use FindBin;
+use UNIVERSAL;
+my $mig_bin = "$FindBin::Bin/";
+use lib "$FindBin::Bin/";
+use Mig;
+
+pod2usage(-verbose => 2) if defined $ARGV[0] && $ARGV[0] eq '--help';
+pod2usage(-verbose => 1) if ! $ARGV[1];
+
+my $next_arg_is_file = 0;
+my $append = 0;
+my $next_arg_is_source = 0;
+my $next_arg_is_stage = 0;
+my $stage_table = 'biblio_record_entry';
+my $source = 'default';
+my $file_is_xml = 0;
+my $dbh = Mig::db_connect();
+my $infile;
+my $i = 0;
+my $batch;
+binmode STDIN, ':utf8';
+
+foreach my $arg (@ARGV) {
+    if ($arg eq '--file') {
+        $next_arg_is_file = 1;
+        next;
+    }
+    if ($next_arg_is_file) {
+        $infile = $arg;
+        $next_arg_is_file = 0;
+        next;
+    }
+    if ($arg eq '--source') {
+        $next_arg_is_source = 1;
+        next;
+    }
+    if ($next_arg_is_source) {
+        $source = $arg;
+        $next_arg_is_source = 0;
+        next;
+    }
+}
+
+my $bre_test = check_for_table($dbh,'biblio_record_entry');
+if ($bre_test == 0) { create_child_bre($dbh); }
+
+my $xmig_test = check_for_column($dbh,'biblio_record_entry','x_migrate');
+if ($xmig_test == 0) { add_column($dbh,'biblio_record_entry','x_migrate','BOOLEAN DEFAULT TRUE'); }
+
+my $xsource_test = check_for_column($dbh,'biblio_record_entry','x_source');
+if ($xsource_test == 0) { add_column($dbh,'biblio_record_entry','x_source','TEXT'); }
+
+#flatten out MARC XML FILE
+open my $xml, "<:encoding(utf8)", $infile or abort('could not open MARC XML file');
+$i = 0;
+my $record = '';
+while(my $line = <$xml>) {
+       if ($line =~ /^<\/?collection/) { next; }
+       chomp $line;
+       $record = $record . $line;
+       if ($line =~ /^<\/record/) {
+               stage_record($dbh,$record,$source); 
+               $record = '';
+               $i++;
+               if (($i % 100) == 0) { report_progress('Records stage', $i); }
+       }
+}
+close $xml;
+
+print "Finis.\n";
+
+# beyond here be functions 
+
+sub create_child_bre {
+    my $dbh = shift;
+    $dbh->do("DO \$\$ 
+        DECLARE
+            t   BOOLEAN;
+        BEGIN
+        SELECT EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema = '$MIGSCHEMA' AND table_name = 'biblio_record_entry') INTO t;
+        IF t = FALSE THEN
+            PERFORM migration_tools.build_specific_base_staging_table ('$MIGSCHEMA','biblio.record_entry');
+        END IF;
+        END \$\$;");
+
+    return ();
+}
+
+sub abort {
+    my $msg = shift;
+    print STDERR "$0: $msg", "\n";
+    exit 1;
+}
+
+sub report_progress {
+    my ($msg, $counter) = @_;
+    if (defined $counter) {
+        print STDERR "$msg: $counter\n";
+    } else {
+        print STDERR "$msg\n";
+    }
+}
+
+sub stage_record {
+    my $dbh = shift;
+    my $record = shift;
+       my $source = shift;
+       my $last_xact = "'$MIGSCHEMA'";
+       $record = '$_$' . $record . '$_$';
+       my $sql;
+       if ($source eq 'default') { $sql = "INSERT INTO $MIGSCHEMA.biblio_record_entry (last_xact_id,marc) VALUES ($last_xact,$record);"; }
+               else { $sql = "INSERT INTO $MIGSCHEMA.biblio_record_entry (last_xact_id,marc,x_source) VALUES ($last_xact,$record,'$source');";  }
+    my $sth = $dbh->prepare($sql);
+    $sth->execute();
+       return;
+}
+
+sub check_for_table {
+    my $dbh = shift;
+    my $table = shift;
+    my $sql = "SELECT 1 FROM information_schema.tables WHERE table_schema = '$MIGSCHEMA' AND table_name = '$table';";
+    my $sth = $dbh->prepare($sql);
+    $sth->execute();
+    my @sqlresult = $sth->fetchrow_array;
+    my $r = pop @sqlresult;
+    if ($r) { return $r; } else { return 0; }
+}
+
+sub check_for_column {
+    my $dbh = shift;
+    my $table = shift;
+       my $column = shift;
+    my $sql = "SELECT 1 FROM information_schema.columns WHERE table_schema = '$MIGSCHEMA' AND table_name = '$table' AND column_name = '$column';";
+    my $sth = $dbh->prepare($sql);
+    $sth->execute();
+    my @sqlresult = $sth->fetchrow_array;
+    my $r = pop @sqlresult;
+    if ($r) { return $r; } else { return 0; }
+}
+
+sub add_column {
+    my $dbh = shift;
+    my $table = shift;
+    my $column = shift;
+       my $column_type = shift;
+    my $sql = "ALTER TABLE $MIGSCHEMA.$table ADD COLUMN $column $column_type;";
+    my $sth = $dbh->prepare($sql);
+    $sth->execute();
+    my @sqlresult = $sth->fetchrow_array;
+       my $r = check_for_column($dbh,$table,$column);
+       if ($r == 0) { abort('failed to create column'); } else { return $r; }
+}
+