Add a SQL method for building searchable queries.

Add tests for that method.
Convert Shop/Tax and Shop/Transaction to use that for their JSON generating methods.

lib/WebGUI/SQL.pm

@@ -312,6 +312,46 @@ sub buildHashRefOfHashRefs {
 }
 
                                                                               
+#-------------------------------------------------------------------
+
+=head2 buildSearchQuery ( $sql, $keywords, $columns )
+
+Append information to an existing SQL statement for implementing
+basic search functions.  The ammended SQL and an array of placeholder
+variables will be returned.
+
+=head3 $sql
+
+An SQL query.  The clauses to add search-like capabilities will be
+appended to the end of the query.
+
+=head3 $keywords
+
+This is the data that will be searched for in columns.  An SQL wildcard '%' will
+be added to the beginning and end of $keywords.
+
+=head3 $columns
+
+An arrayref of column names that should be searched for $keywords.
+
+=cut
+
+sub buildSearchQuery {
+    my $self = shift;
+    my $sql = shift;
+    my $keywords = shift;
+    my $columns = shift || [];
+    my @placeholders;
+    $sql .= ' where';
+    $keywords = '%'.$keywords.'%';
+    foreach my $field (@{ $columns }) {
+        $sql .= ' or' if (scalar @placeholders > 0);
+        $sql .= qq{ $field like ?};
+        push(@placeholders, $keywords);
+    }
+    return ($sql, @placeholders);
+}
+
 #-------------------------------------------------------------------
 
 =head2 commit ( )

lib/WebGUI/Shop/Tax.pm

@@ -359,12 +359,7 @@ sub www_getTaxesAsJson {
     my $sql = 'select SQL_CALC_FOUND_ROWS * from tax';
     my $keywords = $form->get("keywords");
     if ($keywords ne "") {
-        $sql .= ' where';
-        foreach my $field (qw(country state city code)) {
-            $sql .= ' or' if (scalar @placeholders > 0);
-            $sql .= qq{ $field like ?};
-            push(@placeholders, '%'.$keywords.'%');
-        }
+        ($sql, @placeholders) = $db->buildSearchQuery($sql, $keywords, [qw{country state city code}])
     }
     push(@placeholders, $startIndex, $numberOfResults);
     $sql .= ' order by country desc limit ?,?';

lib/WebGUI/Shop/Transaction.pm

@@ -352,12 +352,7 @@ sub www_getTransactionsAsJson {
         from transaction';
     my $keywords = $form->get("keywords");
     if ($keywords ne "") {
-        $sql .= ' where';
-        foreach my $field (qw(amount username orderNumber shippingAddressName shippingAddress1 paymentAddressName paymentAddress1)) {
-            $sql .= ' or' if (scalar @placeholders > 0);
-            $sql .= qq{ $field like ?};
-            push(@placeholders, '%'.$keywords.'%');
-        }
+        ($sql, @placeholders) = $db->buildSearchQuery($sql, $keywords, [qw{amount username orderNumber shippingAddressName shippingAddress1 paymentAddressName paymentAddress1}])
     }
     push(@placeholders, $startIndex, $numberOfResults);
     $sql .= ' order by dateOfPurchase desc limit ?,?';

t/SQL.t

@@ -17,7 +17,7 @@ use WebGUI::Session;
 use Data::Dumper;
 use Test::Deep;
 
-use Test::More tests => 53; # increment this value for each test you create
+use Test::More tests => 57; # increment this value for each test you create
 
 my $session = WebGUI::Test->session;
 
@@ -267,6 +267,8 @@ cmp_deeply($hrefHref, \%expected, 'buildHashRefOfHashRefs, 2 columns, 1 param');
 #
 # buildDataTableStructure
 #
+# Uses the testTable data from the preceeding *RefOf*Ref tests above
+#
 #######################################################################
 
 my %tableStruct = $session->db->buildDataTableStructure('select * from testTable');
@@ -283,6 +285,22 @@ cmp_deeply(
     'Check table structure',
 );
 
+#######################################################################
+#
+# buildSearchQuery
+#
+#######################################################################
+
+my ($searchQuery, @placeHolders) = $session->db->buildSearchQuery('select * from users', 'Admin', [qw{username alias}]);
+like($searchQuery, qr{^select \* from users}, 'returned query begins with original query');
+cmp_deeply(
+    \@placeHolders,
+    [('%Admin%') x 2],
+    'placeholders are the keyword repeated 2 times, one for each column, sandwiched in %'
+);
+like($searchQuery, qr{where username like \?}, 'returned query searches username column, first column uses where');
+like($searchQuery, qr{or alias like \?}, 'returned query searches alias column, second column uses or');
+
 END: {
     $session->db->dbh->do('DROP TABLE IF EXISTS testTable');
 }