add OffsetFetch support

[dbsrgits/DBIx-Class.git] / t / sqlmaker / limit_dialects / offset_fetch_next.t

diff --git a/t/sqlmaker/limit_dialects/offset_fetch_next.t b/t/sqlmaker/limit_dialects/offset_fetch_next.t
new file mode 100644 (file)
index 0000000..f344d63
--- /dev/null
+++ b/t/sqlmaker/limit_dialects/offset_fetch_next.t
@@ -0,0 +1,120 @@
+use strict;
+use warnings;
+
+use Test::More;
+use lib qw(t/lib);
+use DBICTest;
+use DBIC::SqlMakerTest;
+
+my $schema = DBICTest->init_schema;
+
+my ($ROWS, $OFFSET) = (
+   DBIx::Class::SQLMaker::LimitDialects->__rows_bindtype,
+   DBIx::Class::SQLMaker::LimitDialects->__offset_bindtype,
+);
+
+# based on toplimit.t
+delete $schema->storage->_sql_maker->{_cached_syntax};
+$schema->storage->_sql_maker->limit_dialect ('OffsetFetchNext');
+
+my $books_45_and_owners = $schema->resultset ('BooksInLibrary')->search ({}, {
+  prefetch => 'owner', rows => 2,
+  columns => [ grep { $_ ne 'title' } $schema->source('BooksInLibrary')->columns ],
+});
+
+# no offset
+is_same_sql_bind(
+  $books_45_and_owners->as_query,
+  '(
+    SELECT me.id, me.source, me.owner, me.price, owner.id, owner.name
+      FROM books me
+      JOIN owners owner ON owner.id = me.owner
+    WHERE ( source = ? )
+    ORDER BY 1
+    OFFSET ? ROWS FETCH NEXT ? ROWS ONLY
+  )',
+  [
+    [ { sqlt_datatype => 'varchar', sqlt_size => 100, dbic_colname => 'source' }
+      => 'Library' ],
+    [ $OFFSET => 0 ],
+    [ $ROWS => 2 ],
+  ],
+);
+
+$books_45_and_owners = $books_45_and_owners->search({}, { offset => 3 });
+for my $null_order (
+  undef,
+  '',
+  {},
+  [],
+  [{}],
+) {
+  my $rs = $books_45_and_owners->search ({}, {order_by => $null_order });
+  is_same_sql_bind(
+      $rs->as_query,
+      '(SELECT me.id, me.source, me.owner, me.price, owner.id, owner.name
+         FROM books me
+         JOIN owners owner ON owner.id = me.owner
+         WHERE ( source = ? )
+         ORDER BY 1
+         OFFSET ? ROWS
+         FETCH NEXT ? ROWS ONLY
+       )',
+    [
+      [ { sqlt_datatype => 'varchar', sqlt_size => 100, dbic_colname => 'source' }
+        => 'Library' ],
+      [ $OFFSET => 3 ],
+      [ $ROWS => 2 ],
+    ],
+  );
+}
+
+{
+  my $rs = $schema->resultset('Artist')->search({}, {
+    columns => 'artistid',
+    offset => 1,
+    order_by => 'artistid',
+  });
+  local $rs->result_source->{name} = "weird \n newline/multi \t \t space containing \n table";
+
+  like (
+    ${$rs->as_query}->[0],
+    qr| weird \s \n \s newline/multi \s \t \s \t \s space \s containing \s \n \s table|x,
+    'Newlines/spaces preserved in final sql',
+  );
+}
+
+my $attr = {};
+my $rs_selectas_rel = $schema->resultset('BooksInLibrary')->search(undef, {
+  columns => 'me.id',
+  offset => 3,
+  rows => 4,
+  '+columns' => { bar => \['? * ?', [ $attr => 11 ], [ $attr => 12 ]], baz => \[ '?', [ $attr => 13 ]] },
+  order_by => [ \['? / ?', [ $attr => 1 ], [ $attr => 2 ]], \[ '?', [ $attr => 3 ]] ],
+  having => \[ '?', [ $attr => 21 ] ],
+});
+
+is_same_sql_bind(
+  $rs_selectas_rel->as_query,
+  '(
+    SELECT me.id, ? * ?, ?
+      FROM books me
+    WHERE ( source = ? )
+    HAVING ?
+    ORDER BY ? / ?, ?
+    OFFSET ? ROWS
+    FETCH NEXT ? ROWS ONLY
+  )',
+  [
+    [ $attr => 11 ], [ $attr => 12 ], [ $attr => 13 ],
+    [ { sqlt_datatype => 'varchar', sqlt_size => 100, dbic_colname => 'source' } => 'Library' ],
+    [ $attr => 21 ],
+    [ $attr => 1 ], [ $attr => 2 ], [ $attr => 3 ],
+    [ $OFFSET => 3 ],
+    [ $ROWS => 4 ],
+  ],
+  'Pagination with sub-query in ORDER BY works'
+);
+
+
+done_testing;