Commit | Line | Data |
8f306bb1 |
1 | package SQL::Abstract::Clauses; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use mro 'c3'; |
6 | use base 'SQL::Abstract'; |
7 | |
d5f4b9d3 |
8 | BEGIN { *puke = \&SQL::Abstract::puke } |
9 | |
8f306bb1 |
10 | sub new { |
11 | shift->next::method(@_)->register_defaults |
12 | } |
13 | |
14 | sub register_defaults { |
15 | my ($self) = @_; |
16 | $self->{clauses_of}{select} = [ qw(select from where order_by) ]; |
17 | $self->{expand}{select} = sub { shift->_expand_statement(@_) }; |
25b45941 |
18 | $self->{render}{select} = sub { shift->_render_statement(select => @_) }; |
8cad5d13 |
19 | $self->{expand_clause}{"select.$_"} = "_expand_select_clause_$_" |
20 | for @{$self->{clauses_of}{select}}; |
d5f4b9d3 |
21 | $self->{clauses_of}{update} = [ qw(update set where returning) ]; |
22 | $self->{expand}{update} = sub { shift->_expand_statement(@_) }; |
23 | $self->{render}{update} = sub { shift->_render_statement(update => @_) }; |
4c0c4404 |
24 | $self->{expand_clause}{"update.$_"} = "_expand_update_clause_$_" |
25 | for @{$self->{clauses_of}{update}}; |
be12624c |
26 | $self->{clauses_of}{delete} = [ qw(delete_from where returning) ]; |
27 | $self->{expand}{delete} = sub { shift->_expand_statement(@_) }; |
28 | $self->{render}{delete} = sub { shift->_render_statement(delete => @_) }; |
bc637c4f |
29 | $self->{expand_clause}{"delete.$_"} = "_expand_delete_clause_$_" |
30 | for @{$self->{clauses_of}{delete}}; |
6a47389f |
31 | $self->{clauses_of}{insert} = [ |
32 | 'insert_into', 'fields', 'values', 'returning' |
33 | ]; |
5ed4a77e |
34 | $self->{expand}{insert} = sub { shift->_expand_statement(@_) }; |
35 | $self->{render}{insert} = sub { shift->_render_statement(insert => @_) }; |
36 | $self->{expand_clause}{'insert.insert_into'} = sub { |
37 | shift->expand_expr(@_, -ident); |
38 | }; |
89bbac1d |
39 | $self->{expand_clause}{'insert.values'} = '_expand_insert_clause_values'; |
5ed4a77e |
40 | $self->{expand_clause}{'insert.returning'} = sub { |
41 | shift->_expand_maybe_list_expr(@_, -ident); |
42 | }; |
6a47389f |
43 | $self->{render_clause}{'insert.fields'} = sub { |
44 | return $_[0]->render_aqt({ -row => [ $_[1] ] }); |
45 | }; |
8f306bb1 |
46 | return $self; |
47 | } |
48 | |
8cad5d13 |
49 | sub _expand_select_clause_select { |
50 | my ($self, $select) = @_; |
51 | +(select => $self->_expand_maybe_list_expr($select, -ident)); |
52 | } |
53 | |
54 | sub _expand_select_clause_from { |
55 | my ($self, $from) = @_; |
56 | +(from => $self->_expand_maybe_list_expr($from, -ident)); |
57 | } |
58 | |
59 | sub _expand_select_clause_where { |
60 | my ($self, $where) = @_; |
61 | +(where => $self->expand_expr($where)); |
62 | } |
63 | |
64 | sub _expand_select_clause_order_by { |
65 | my ($self, $order_by) = @_; |
66 | +(order_by => $self->_expand_order_by($order_by)); |
67 | } |
68 | |
4c0c4404 |
69 | sub _expand_update_clause_update { |
70 | my ($self, $target) = @_; |
71 | +(update => $self->expand_expr($target, -ident)); |
72 | } |
73 | |
74 | sub _expand_update_clause_set { |
e5d02bc7 |
75 | return $_[1] if ref($_[1]) eq 'HASH' and ($_[1]->{-op}||[''])->[0] eq ','; |
4c0c4404 |
76 | +(set => shift->_expand_update_set_values(@_)); |
77 | } |
78 | |
79 | sub _expand_update_clause_where { |
80 | +(where => shift->expand_expr(@_)); |
81 | } |
82 | |
83 | sub _expand_update_clause_returning { |
84 | +(returning => shift->_expand_maybe_list_expr(@_, -ident)); |
85 | } |
86 | |
bc637c4f |
87 | sub _expand_delete_clause_delete_from { |
88 | +(delete_from => shift->_expand_maybe_list_expr(@_, -ident)); |
89 | } |
90 | |
91 | sub _expand_delete_clause_where { +(where => shift->expand_expr(@_)); } |
92 | |
93 | sub _expand_delete_clause_returning { |
94 | +(returning => shift->_expand_maybe_list_expr(@_, -ident)); |
95 | } |
96 | |
8f306bb1 |
97 | sub _expand_statement { |
98 | my ($self, $type, $args) = @_; |
99 | my $ec = $self->{expand_clause}; |
25b45941 |
100 | return +{ "-${type}" => +{ |
95894429 |
101 | map { |
8f306bb1 |
102 | my $val = $args->{$_}; |
103 | if (defined($val) and my $exp = $ec->{"${type}.$_"}) { |
95894429 |
104 | if ((my (@exp) = $self->$exp($val)) == 1) { |
105 | ($_ => $exp[0]) |
106 | } else { |
107 | @exp |
108 | } |
8f306bb1 |
109 | } else { |
95894429 |
110 | ($_ => $val) |
8f306bb1 |
111 | } |
95894429 |
112 | } sort keys %$args |
25b45941 |
113 | } }; |
8f306bb1 |
114 | } |
115 | |
116 | sub _render_statement { |
117 | my ($self, $type, $args) = @_; |
118 | my @parts; |
119 | foreach my $clause (@{$self->{clauses_of}{$type}}) { |
120 | next unless my $clause_expr = $args->{$clause}; |
b96fbdc0 |
121 | local $self->{convert_where} = $self->{convert} if $clause eq 'where'; |
6a47389f |
122 | my ($sql) = my @part = do { |
123 | if (my $rdr = $self->{render_clause}{"${type}.${clause}"}) { |
124 | $self->$rdr($clause_expr); |
125 | } else { |
126 | my ($clause_sql, @bind) = $self->render_aqt($clause_expr); |
127 | my $sql = join ' ', |
128 | $self->_sqlcase(join ' ', split '_', $clause), |
129 | $clause_sql; |
130 | ($sql, @bind); |
131 | } |
132 | }; |
8f306bb1 |
133 | next unless defined($sql) and length($sql); |
6a47389f |
134 | push @parts, \@part; |
8f306bb1 |
135 | } |
136 | return $self->_join_parts(' ', @parts); |
137 | } |
138 | |
b96fbdc0 |
139 | sub select { |
140 | my ($self, @args) = @_; |
141 | my %clauses; |
142 | @clauses{qw(from select where order_by)} = @args; |
0c3c4c23 |
143 | |
b96fbdc0 |
144 | # This oddity is to literalify since historically SQLA doesn't quote |
0c3c4c23 |
145 | # a single identifier argument, so we convert it into a literal |
146 | |
91d37de5 |
147 | $clauses{select} = { -literal => [ $clauses{select}||'*' ] } |
148 | unless ref($clauses{select}); |
149 | |
b96fbdc0 |
150 | my ($sql, @bind) = $self->render_expr({ -select => \%clauses }); |
151 | return wantarray ? ($sql, @bind) : $sql; |
152 | } |
153 | |
d5f4b9d3 |
154 | sub update { |
155 | my ($self, $table, $set, $where, $options) = @_; |
156 | my %clauses; |
157 | @clauses{qw(update set where)} = ($table, $set, $where); |
158 | puke "Unsupported data type specified to \$sql->update" |
159 | unless ref($clauses{set}) eq 'HASH'; |
160 | @clauses{keys %$options} = values %$options; |
161 | my ($sql, @bind) = $self->render_expr({ -update => \%clauses }); |
162 | return wantarray ? ($sql, @bind) : $sql; |
163 | } |
164 | |
be12624c |
165 | sub delete { |
166 | my ($self, $table, $where, $options) = @_; |
167 | my %clauses = (delete_from => $table, where => $where, %{$options||{}}); |
168 | my ($sql, @bind) = $self->render_expr({ -delete => \%clauses }); |
169 | return wantarray ? ($sql, @bind) : $sql; |
170 | } |
171 | |
5ed4a77e |
172 | sub insert { |
173 | my ($self, $table, $data, $options) = @_; |
89bbac1d |
174 | my %clauses = (insert_into => $table, values => $data, %{$options||{}}); |
5ed4a77e |
175 | my ($sql, @bind) = $self->render_expr({ -insert => \%clauses }); |
176 | return wantarray ? ($sql, @bind) : $sql; |
177 | } |
178 | |
89bbac1d |
179 | sub _expand_insert_clause_values { |
180 | my ($self, $data) = @_; |
e5d02bc7 |
181 | return $data if ref($data) eq 'HASH' and $data->{-row}; |
89bbac1d |
182 | my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data); |
183 | return (values => $v_aqt, ($f_aqt ? (fields => $f_aqt) : ())); |
184 | } |
185 | |
8f306bb1 |
186 | 1; |