1 package DBIx::Class::SQLMaker::DateOps;
7 Class::Accessor::Grouped
9 __PACKAGE__->mk_group_accessors (simple => qw/datetime_parser/);
10 use Sub::Name 'subname';
12 sub _where_op_CONVERT_DATETIME {
14 my ($op, $rhs) = splice @_, -2;
15 $self->throw_exception("-$op takes a DateTime only") unless ref $rhs && $rhs->isa('DateTime');
17 # in case we are called as a top level special op (no '=')
20 $rhs = $self->datetime_parser->format_datetime($rhs);
23 ($lhs || $self->{_nested_func_lhs} || undef),
29 $self->_convert($self->_quote($lhs)) . ' = ' . $self->_convert('?'),
39 sub _unsupported_date_extraction {
40 "date part extraction not supported for part \"$_[1]\" with database \"$_[2]\""
43 sub _unsupported_date_adding {
44 "date part adding not supported for part \"$_[1]\" with database \"$_[2]\""
47 sub _unsupported_date_diff {
48 "date diff not supported for part \"$_[1]\" with database \"$_[2]\""
51 sub _datetime_sql { die 'date part extraction not implemented for this database' }
53 sub _datetime_diff_sql { die 'date diffing not implemented for this database' }
54 sub _datetime_add_sql { die 'date adding not implemented for this database' }
56 sub _where_op_GET_DATETIME {
71 $self->throw_exception('args to -dt_get must be an arrayref') unless ref $vals eq 'ARRAY';
72 $self->throw_exception('first arg to -dt_get must be a scalar or ARRAY ref') unless !ref $vals->[0] || ref $vals->[0] eq 'ARRAY';
74 my $part = $vals->[0];
77 my ($sql, @bind) = $self->_SWITCH_refkind($val, {
79 return ($self->_convert('?'), $self->_bindtype($k, $val) );
85 my ($sql, @bind) = @$$val;
86 $self->_assert_bindval_matches_bindtype(@bind);
90 my $method = $self->_METHOD_FOR_refkind("_where_hashpair", $val);
91 $self->$method('', $val);
96 return $self->_datetime_sql($part, $sql), @bind;
97 } elsif (ref $part eq 'ARRAY' ) {
98 return ( join ', ', map { $self->_datetime_sql($_, $sql) } @$part ), (@bind) x @$part;
102 for my $part (qw(month year hour minute second)) {
104 my $name = '_where_op_GET_DATETIME_' . uc($part);
105 *{$name} = subname "DBIx::Class::SQLMaker::DateOps::$name", sub {
107 my ($op, $rhs) = splice @_, -2;
111 return $self->_where_op_GET_DATETIME($op, $lhs, [$part, $rhs])
115 sub _where_op_GET_DATETIME_DAY {
117 my ($op, $rhs) = splice @_, -2;
121 # we use day_of_month instead of plain day internally
122 # because some databases also support day_of_week and day_of_year
123 return $self->_where_op_GET_DATETIME($op, $lhs, [day_of_month => $rhs])
126 sub _where_op_DATETIME_NOW {
141 $self->throw_exception("args to -$op must be an arrayref") unless ref $vals eq 'ARRAY';
142 if (!exists $vals->[0]) {
143 return $self->_datetime_now_sql()
144 } elsif ($vals->[0] eq 'system') {
146 return $self->_where_op_CONVERT_DATETIME('dt', DateTime->now);
148 $self->throw_exception("first arg to -$op must be a 'system' or non-existant")
152 sub _reorder_add_datetime_vars {
153 my ($self, $amount, $date) = @_;
155 return ($amount, $date);
158 sub _dt_arg_transform {
159 my ($self, $k, $val) = @_;
160 my ($sql, @bind) = $self->_SWITCH_refkind($val, {
162 return ($self->_convert('?'), $self->_bindtype($k, $val) );
168 my ($sql, @bind) = @$$val;
169 $self->_assert_bindval_matches_bindtype(@bind);
170 return ($sql, @bind);
173 my $method = $self->_METHOD_FOR_refkind("_where_hashpair", $val);
174 $self->$method('', $val);
177 return ($sql, @bind);
180 sub _where_op_ADD_DATETIME_transform_args { $_[0]->_dt_arg_transform($_[2], $_[3]) }
182 sub _where_op_ADD_DATETIME {
197 $self->throw_exception("args to -$op must be an arrayref") unless ref $vals eq 'ARRAY';
198 $self->throw_exception("first arg to -$op must be a scalar") unless !ref $vals->[0];
199 $self->throw_exception("-$op must have two more arguments") unless scalar @$vals == 3;
201 my ($part, @rest) = @$vals;
203 my (@all_sql, @all_bind);
205 foreach my $val ($self->_reorder_add_datetime_vars(@rest)) {
206 my ($sql, @bind) = $self->_where_op_ADD_DATETIME_transform_args($i, $k, $val);
208 push @all_bind, @bind;
212 return $self->_datetime_add_sql($part, $all_sql[0], $all_sql[1]), @all_bind
215 sub _reorder_diff_datetime_vars {
216 my ($self, $d1, $d2) = @_;
221 sub _where_op_DIFF_DATETIME {
236 $self->throw_exception('args to -dt_diff must be an arrayref') unless ref $vals eq 'ARRAY';
237 $self->throw_exception('first arg to -dt_diff must be a scalar') unless !ref $vals->[0];
238 $self->throw_exception('-dt_diff must have two more arguments') unless scalar @$vals == 3;
240 my ($part, @val) = @$vals;
241 my $placeholder = $self->_convert('?');
243 @val = $self->_reorder_diff_datetime_vars(@val);
244 my (@all_sql, @all_bind);
245 foreach my $val (@val) {
246 my ($sql, @bind) = $self->_dt_arg_transform($k, $val);
248 push @all_bind, @bind;
251 return $self->_datetime_diff_sql($part, $all_sql[0], $all_sql[1]), @all_bind
254 sub _where_op_CIRCA_DATETIME {
269 my ($sql, @bind) = $self->_dt_arg_transform($k, $val);
271 my ($equal, $before, $after) = $op =~ /dt_(on_or_)?(before)?(after)?/;
281 return "$k $sym $sql", @bind;