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.

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');
 }