X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-test.git;a=blobdiff_plain;f=yarrg%2FCommodsWeb.pm;h=adcff3492c154682263fe00698cf6fc6d8c7863a;hp=198185d32df4f1855fd4ca691d809b482f91bf04;hb=20bea992a857ea1f03f19d81f7164b113a560e83;hpb=bd155443745759a5a9c95cd1cbce5a8f73894737

diff --git a/yarrg/CommodsWeb.pm b/yarrg/CommodsWeb.pm
index 198185d..adcff34 100644
--- a/yarrg/CommodsWeb.pm
+++ b/yarrg/CommodsWeb.pm
@@ -51,6 +51,7 @@ BEGIN {
     @EXPORT      = qw(&dbw_connect &ocean_list &sourcebasedir
 		      &to_json_shim &to_json_protecttags
 		      &set_ctype_utf8
+		      &expected_error &dbw_lookup_string
 		      &prettyprint_age &meta_prettyprint_age);
     %EXPORT_TAGS = ( );
 
@@ -151,4 +152,48 @@ BEGIN { eval '
 }
 
 
+sub dbw_lookup_string ($$$$$$$$) { # => ( $emsg, @dbresults )
+    my ($each,
+	$sth, $stmt_nqs, $abbrev_initials, $maxambig,
+	$em_nomatch, $em_manyambig, $emf_ambiguous) = @_;
+    
+    $each =~ s/^\s*//;  $each =~ s/\s*$//;  $each =~ s/\s+/ /g;
+    my %m;
+    my $results;
+    my @pats= ("$each", "$each \%", "$each\%", "\%$each\%");
+    if ($abbrev_initials) {
+	push @pats, join ' ', map { "$_%" } split //, $each;
+    }
+    foreach my $pat (@pats) {
+	$sth->execute(($pat) x $stmt_nqs);
+	$results= $sth->fetchall_arrayref();
+	last if @$results==1;
+	$m{ $_->[0] }=1 for @$results;
+	$results= undef;
+    }
+    if (!$results) {
+	if (!%m) {
+	    return $em_nomatch;
+	} elsif (keys(%m) > $maxambig) {
+	    return $em_manyambig;
+	} else {
+	    return $emf_ambiguous->($each, join(', ', sort keys %m));
+	}
+    }
+    return (undef, @{ $results->[0] });
+}
+
+sub expected_error ($) {
+    my $r= { Emsg => $_[0] };
+    bless $r, 'CommodsWeb::ExpectedError';
+    die $r;
+}
+
+package CommodsWeb::ExpectedError;
+
+sub emsg ($) {
+    my ($self) = @_;
+    return $self->{Emsg};
+}
+
 1;