Commit | Line | Data |
bbe638af |
1 | package SQL::Abstract::Clauses; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use mro 'c3'; |
6 | use base 'SQL::Abstract'; |
7 | |
1bcd361f |
8 | BEGIN { *puke = \&SQL::Abstract::puke } |
9 | |
bbe638af |
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(@_) }; |
27d61b67 |
18 | $self->{render}{select} = sub { shift->_render_statement(select => @_) }; |
df0f5af9 |
19 | $self->{expand_clause}{"select.$_"} = "_expand_select_clause_$_" |
20 | for @{$self->{clauses_of}{select}}; |
1bcd361f |
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 => @_) }; |
889fdd38 |
24 | $self->{expand_clause}{"update.$_"} = "_expand_update_clause_$_" |
25 | for @{$self->{clauses_of}{update}}; |
77e8c03d |
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 => @_) }; |
44296b4e |
29 | $self->{expand_clause}{"delete.$_"} = "_expand_delete_clause_$_" |
30 | for @{$self->{clauses_of}{delete}}; |
2b057b28 |
31 | $self->{clauses_of}{insert} = [ |
32 | 'insert_into', 'fields', 'values', 'returning' |
33 | ]; |
39544e0e |
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 | }; |
f33d93b5 |
39 | $self->{expand_clause}{'insert.values'} = '_expand_insert_clause_values'; |
39544e0e |
40 | $self->{expand_clause}{'insert.returning'} = sub { |
41 | shift->_expand_maybe_list_expr(@_, -ident); |
42 | }; |
2b057b28 |
43 | $self->{render_clause}{'insert.fields'} = sub { |
44 | return $_[0]->render_aqt({ -row => [ $_[1] ] }); |
45 | }; |
bbe638af |
46 | return $self; |
47 | } |
48 | |
df0f5af9 |
49 | sub _expand_select_clause_select { |
50 | my ($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 | |
889fdd38 |
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 { |
75 | +(set => shift->_expand_update_set_values(@_)); |
76 | } |
77 | |
78 | sub _expand_update_clause_where { |
79 | +(where => shift->expand_expr(@_)); |
80 | } |
81 | |
82 | sub _expand_update_clause_returning { |
83 | +(returning => shift->_expand_maybe_list_expr(@_, -ident)); |
84 | } |
85 | |
44296b4e |
86 | sub _expand_delete_clause_delete_from { |
87 | +(delete_from => shift->_expand_maybe_list_expr(@_, -ident)); |
88 | } |
89 | |
90 | sub _expand_delete_clause_where { +(where => shift->expand_expr(@_)); } |
91 | |
92 | sub _expand_delete_clause_returning { |
93 | +(returning => shift->_expand_maybe_list_expr(@_, -ident)); |
94 | } |
95 | |
bbe638af |
96 | sub _expand_statement { |
97 | my ($self, $type, $args) = @_; |
98 | my $ec = $self->{expand_clause}; |
27d61b67 |
99 | return +{ "-${type}" => +{ |
c79c67d7 |
100 | map { |
bbe638af |
101 | my $val = $args->{$_}; |
102 | if (defined($val) and my $exp = $ec->{"${type}.$_"}) { |
c79c67d7 |
103 | if ((my (@exp) = $self->$exp($val)) == 1) { |
104 | ($_ => $exp[0]) |
105 | } else { |
106 | @exp |
107 | } |
bbe638af |
108 | } else { |
c79c67d7 |
109 | ($_ => $val) |
bbe638af |
110 | } |
c79c67d7 |
111 | } sort keys %$args |
27d61b67 |
112 | } }; |
bbe638af |
113 | } |
114 | |
115 | sub _render_statement { |
116 | my ($self, $type, $args) = @_; |
117 | my @parts; |
118 | foreach my $clause (@{$self->{clauses_of}{$type}}) { |
119 | next unless my $clause_expr = $args->{$clause}; |
81b270e7 |
120 | local $self->{convert_where} = $self->{convert} if $clause eq 'where'; |
2b057b28 |
121 | my ($sql) = my @part = do { |
122 | if (my $rdr = $self->{render_clause}{"${type}.${clause}"}) { |
123 | $self->$rdr($clause_expr); |
124 | } else { |
125 | my ($clause_sql, @bind) = $self->render_aqt($clause_expr); |
126 | my $sql = join ' ', |
127 | $self->_sqlcase(join ' ', split '_', $clause), |
128 | $clause_sql; |
129 | ($sql, @bind); |
130 | } |
131 | }; |
bbe638af |
132 | next unless defined($sql) and length($sql); |
2b057b28 |
133 | push @parts, \@part; |
bbe638af |
134 | } |
135 | return $self->_join_parts(' ', @parts); |
136 | } |
137 | |
81b270e7 |
138 | sub select { |
139 | my ($self, @args) = @_; |
140 | my %clauses; |
141 | @clauses{qw(from select where order_by)} = @args; |
8e6988ce |
142 | |
81b270e7 |
143 | # This oddity is to literalify since historically SQLA doesn't quote |
8e6988ce |
144 | # a single identifier argument, so we convert it into a literal |
145 | |
4ee74413 |
146 | $clauses{select} = { -literal => [ $clauses{select}||'*' ] } |
147 | unless ref($clauses{select}); |
148 | |
81b270e7 |
149 | my ($sql, @bind) = $self->render_expr({ -select => \%clauses }); |
150 | return wantarray ? ($sql, @bind) : $sql; |
151 | } |
152 | |
1bcd361f |
153 | sub update { |
154 | my ($self, $table, $set, $where, $options) = @_; |
155 | my %clauses; |
156 | @clauses{qw(update set where)} = ($table, $set, $where); |
157 | puke "Unsupported data type specified to \$sql->update" |
158 | unless ref($clauses{set}) eq 'HASH'; |
159 | @clauses{keys %$options} = values %$options; |
160 | my ($sql, @bind) = $self->render_expr({ -update => \%clauses }); |
161 | return wantarray ? ($sql, @bind) : $sql; |
162 | } |
163 | |
77e8c03d |
164 | sub delete { |
165 | my ($self, $table, $where, $options) = @_; |
166 | my %clauses = (delete_from => $table, where => $where, %{$options||{}}); |
167 | my ($sql, @bind) = $self->render_expr({ -delete => \%clauses }); |
168 | return wantarray ? ($sql, @bind) : $sql; |
169 | } |
170 | |
39544e0e |
171 | sub insert { |
172 | my ($self, $table, $data, $options) = @_; |
f33d93b5 |
173 | my %clauses = (insert_into => $table, values => $data, %{$options||{}}); |
39544e0e |
174 | my ($sql, @bind) = $self->render_expr({ -insert => \%clauses }); |
175 | return wantarray ? ($sql, @bind) : $sql; |
176 | } |
177 | |
f33d93b5 |
178 | sub _expand_insert_clause_values { |
179 | my ($self, $data) = @_; |
180 | my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data); |
181 | return (values => $v_aqt, ($f_aqt ? (fields => $f_aqt) : ())); |
182 | } |
183 | |
bbe638af |
184 | 1; |