1 package WebPAC::Validate;
8 use base 'WebPAC::Common';
10 use List::Util qw/first/;
11 use Data::Dump qw/dump/;
12 use WebPAC::Normalize qw/_pack_subfields_hash/;
13 use Storable qw/dclone/;
17 WebPAC::Validate - provide simple validation for records
25 our $VERSION = '0.07';
29 This module provide a simple way to validate your file against a simple
30 configuration file in following format:
32 # field 10 doesn't have any subfields
36 # field 200 have valid subfields a-g
37 # and field e is repeatable
39 # field 205 can have only subfield a
42 # while 210 can have a c or d
49 Create new validation object
51 my $validate = new WebPAC::Validate(
52 path => 'conf/validate/file',
62 my $log = $self->_get_logger();
64 foreach my $p (qw/path/) {
65 $log->logconfess("need $p") unless ($self->{$p});
68 my $v_file = read_file( $self->{path} ) ||
69 $log->logdie("can't open validate path $self->{path}: $!");
74 foreach my $l (split(/[\n\r]+/, $v_file)) {
77 # skip comments and whitespaces
78 next if ($l =~ /^#/ || $l =~ /^\s*$/);
83 my @d = split(/\s+/, $l);
88 $self->{must_exist}->{$fld}++;
91 $log->logdie("need field name in line $curr_line: $l") unless (defined($fld));
96 if ( $sf =~ s/!(\*)?$/$1/ ) {
97 $self->{must_exist_sf}->{ $fld }->{ $sf }++;
107 $log->debug("current validation rules: ", dump($v));
111 $log->info("validation uses rules from $self->{path}");
113 $self ? return $self : return undef;
116 =head2 validate_errors
118 Validate record and return errors
120 my @errors = $validate->validate_errors( $rec, $rec_dump );
124 sub validate_errors {
127 my $log = $self->_get_logger();
129 my $rec = shift || $log->logdie("validate_errors need record");
130 my $rec_dump = shift;
132 $log->logdie("rec isn't HASH") unless (ref($rec) eq 'HASH');
133 $log->logdie("can't find validation rules") unless (my $r = $self->{rules});
137 $log->debug("rec = ", sub { dump($rec) }, "keys = ", keys %{ $rec });
141 foreach my $f (keys %{ $rec }) {
143 next if (!defined($f) || $f eq '' || $f eq '000');
147 if ( ! defined($r->{$f}) ) {
148 $errors->{field}->{ $f }->{unexpected} = "this field is not expected";
153 if (ref($rec->{$f}) ne 'ARRAY') {
154 $errors->{field}->{ $f }->{not_repeatable} = "probably bug in parsing input data";
158 foreach my $v (@{ $rec->{$f} }) {
159 # can we have subfields?
160 if (ref($r->{$f}) eq 'ARRAY') {
161 # are values hashes? (has subfields)
163 # $errors->{field}->{$f}->{empty} = undef;
164 # $errors->{dump} = $rec_dump if ($rec_dump);
165 } elsif (ref($v) ne 'HASH') {
166 $errors->{field}->{$f}->{missing_subfield} = join(",", @{ $r->{$f} }) . " required";
170 my $h = dclone( $v );
174 delete($v->{subfields}) if (defined($v->{subfields}));
178 foreach my $sf (keys %{ $v }) {
180 $subfields->{ $sf }++;
182 # is non-repeatable but with multiple values?
183 if ( ! first { $_ eq $sf.'*' } @{$r->{$f}} ) {
184 if ( ref($v->{$sf}) eq 'ARRAY' ) {
185 $sf_repeatable->{$sf}++;
187 if (! first { $_ eq $sf } @{ $r->{$f} }) {
188 $errors->{field}->{ $f }->{subfield}->{extra}->{$sf}++;
193 if (my @r_sf = sort keys( %$sf_repeatable )) {
195 foreach my $sf (@r_sf) {
196 $errors->{field}->{$f}->{subfield}->{extra_repeatable}->{$sf}++;
197 $errors->{field}->{$f}->{dump} =
198 join('', _pack_subfields_hash( $h, 1 ) );
203 if ( defined( $self->{must_exist_sf}->{$f} ) ) {
204 foreach my $sf (sort keys %{ $self->{must_exist_sf}->{$f} }) {
205 #warn "====> $f $sf must exist\n";
206 $errors->{field}->{$f}->{subfield}->{missing}->{$sf}++
207 unless defined( $subfields->{$sf} );
212 } elsif (ref($v) eq 'HASH') {
213 $errors->{field}->{$f}->{unexpected_subfields}++;
214 $errors->{field}->{$f}->{dump} =
215 join('', _pack_subfields_hash( $v, 1 ) );
220 foreach my $must (sort keys %{ $self->{must_exist} }) {
221 next if ($fields->{$must});
222 $errors->{field}->{$must}->{missing}++;
223 $errors->{dump} = $rec_dump if ($rec_dump);
227 $log->debug("errors: ", sub { dump( $errors ) } );
229 my $mfn = $rec->{'000'}->[0] || $log->logconfess("record ", dump( $rec ), " doesn't have MFN");
230 $self->{errors}->{$mfn} = $errors;
233 #$log->logcluck("return from this function is ARRAY") unless wantarray;
240 Clean all accumulated errors for this input
242 $validate->reset_errors;
248 delete ($self->{errors});
253 Return hash with all errors
255 print dump( $validate->all_errors );
261 return $self->{errors};
266 Produce nice humanly readable report of errors
268 print $validate->report;
276 my ($rest,$o, $dump) = @_;
278 #warn "# rest: $rest o: $o\n";
280 return unless ($rest);
282 if (ref($rest) ne 'HASH') {
287 foreach my $k (sort keys %{ $rest }) {
290 $dump = $rest->{dump};
291 warn "## dump: $dump\n";
295 ($u, $dump) = unroll($rest->{$k}, $o, $dump);
305 foreach my $mfn (sort keys %{ $self->{errors} }) {
306 my ($msg,$dump) = unroll( $self->{errors}->{$mfn}, '', '' );
307 $out .= "MFN $mfn\n$msg\t$dump\n\n";
315 Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
317 =head1 COPYRIGHT & LICENSE
319 Copyright 2006 Dobrica Pavlinusic, All Rights Reserved.
321 This program is free software; you can redistribute it and/or modify it
322 under the same terms as Perl itself.
326 1; # End of WebPAC::Validate