use strict;
use warnings;
+use if $] < '5.010', 'MRO::Compat';
use mro 'c3';
use base 'SQL::Abstract';
+BEGIN { *puke = \&SQL::Abstract::puke }
+
sub new {
shift->next::method(@_)->register_defaults
}
$self->{clauses_of}{select} = [ qw(select from where order_by) ];
$self->{expand}{select} = sub { shift->_expand_statement(@_) };
$self->{render}{select} = sub { shift->_render_statement(select => @_) };
- $self->{expand_clause}{'select.select'} = sub {
- $_[0]->_expand_maybe_list_expr($_[1], -ident)
+ $self->{expand_clause}{"select.$_"} = "_expand_select_clause_$_"
+ for @{$self->{clauses_of}{select}};
+ $self->{clauses_of}{update} = [ qw(target set where returning) ];
+ $self->{expand}{update} = sub { shift->_expand_statement(@_) };
+ $self->{render}{update} = sub { shift->_render_statement(update => @_) };
+ $self->{expand_clause}{"update.$_"} = "_expand_update_clause_$_"
+ for @{$self->{clauses_of}{update}};
+ $self->{expand_clause}{'update.update'} = '_expand_update_clause_target';
+ $self->{render_clause}{'update.target'} = sub {
+ my ($self, $target) = @_;
+ my ($sql, @bind) = $self->render_aqt($target);
+ ($self->_sqlcase('update ').$sql, @bind);
+ };
+ $self->{clauses_of}{delete} = [ qw(target where returning) ];
+ $self->{expand}{delete} = sub { shift->_expand_statement(@_) };
+ $self->{render}{delete} = sub { shift->_render_statement(delete => @_) };
+ $self->{expand_clause}{"delete.$_"} = "_expand_delete_clause_$_"
+ for @{$self->{clauses_of}{delete}};
+ $self->{expand_clause}{"delete.from"} = '_expand_delete_clause_target';
+ $self->{render_clause}{'delete.target'} = sub {
+ my ($self, $from) = @_;
+ my ($sql, @bind) = $self->render_aqt($from);
+ ($self->_sqlcase('delete from ').$sql, @bind);
+ };
+ $self->{clauses_of}{insert} = [
+ 'target', 'fields', 'values', 'returning'
+ ];
+ $self->{expand}{insert} = sub { shift->_expand_statement(@_) };
+ $self->{render}{insert} = sub { shift->_render_statement(insert => @_) };
+ $self->{expand_clause}{'insert.into'} = '_expand_insert_clause_target';
+ $self->{expand_clause}{'insert.target'} = '_expand_insert_clause_target';
+ $self->{expand_clause}{'insert.fields'} = sub {
+ return +{ -row => [
+ shift->_expand_maybe_list_expr(@_, -ident)
+ ] } if ref($_[1]) eq 'ARRAY';
+ return $_[1]; # should maybe still expand somewhat?
};
- $self->{expand_clause}{'select.from'} = sub {
- $_[0]->_expand_maybe_list_expr($_[1], -ident)
+ $self->{expand_clause}{'insert.values'} = '_expand_insert_clause_values';
+ $self->{expand_clause}{'insert.returning'} = sub {
+ shift->_expand_maybe_list_expr(@_, -ident);
+ };
+ $self->{render_clause}{'insert.fields'} = sub {
+ return $_[0]->render_aqt($_[1]);
+ };
+ $self->{render_clause}{'insert.target'} = sub {
+ my ($self, $from) = @_;
+ my ($sql, @bind) = $self->render_aqt($from);
+ ($self->_sqlcase('insert into ').$sql, @bind);
};
- $self->{expand_clause}{'select.where'} = 'expand_expr';
- $self->{expand_clause}{'select.order_by'} = '_expand_order_by';
return $self;
}
+sub _expand_select_clause_select {
+ my ($self, $select) = @_;
+ +(select => $self->_expand_maybe_list_expr($select, -ident));
+}
+
+sub _expand_select_clause_from {
+ my ($self, $from) = @_;
+ +(from => $self->_expand_maybe_list_expr($from, -ident));
+}
+
+sub _expand_select_clause_where {
+ my ($self, $where) = @_;
+ +(where => $self->expand_expr($where));
+}
+
+sub _expand_select_clause_order_by {
+ my ($self, $order_by) = @_;
+ +(order_by => $self->_expand_order_by($order_by));
+}
+
+sub _expand_update_clause_target {
+ my ($self, $target) = @_;
+ +(target => $self->_expand_maybe_list_expr($target, -ident));
+}
+
+sub _expand_update_clause_set {
+ return $_[1] if ref($_[1]) eq 'HASH' and ($_[1]->{-op}||[''])->[0] eq ',';
+ +(set => shift->_expand_update_set_values(@_));
+}
+
+sub _expand_update_clause_where {
+ +(where => shift->expand_expr(@_));
+}
+
+sub _expand_update_clause_returning {
+ +(returning => shift->_expand_maybe_list_expr(@_, -ident));
+}
+
+sub _expand_delete_clause_target {
+ +(target => shift->_expand_maybe_list_expr(@_, -ident));
+}
+
+sub _expand_delete_clause_where { +(where => shift->expand_expr(@_)); }
+
+sub _expand_delete_clause_returning {
+ +(returning => shift->_expand_maybe_list_expr(@_, -ident));
+}
+
sub _expand_statement {
my ($self, $type, $args) = @_;
my $ec = $self->{expand_clause};
return +{ "-${type}" => +{
- map +($_ => (do {
+ map {
my $val = $args->{$_};
if (defined($val) and my $exp = $ec->{"${type}.$_"}) {
- $self->$exp($val);
+ if ((my (@exp) = $self->$exp($val)) == 1) {
+ ($_ => $exp[0])
+ } else {
+ @exp
+ }
} else {
- $val;
+ ($_ => $val)
}
- })), sort keys %$args
+ } sort keys %$args
} };
}
foreach my $clause (@{$self->{clauses_of}{$type}}) {
next unless my $clause_expr = $args->{$clause};
local $self->{convert_where} = $self->{convert} if $clause eq 'where';
- my ($sql, @bind) = $self->render_aqt($clause_expr);
+ my ($sql) = my @part = do {
+ if (my $rdr = $self->{render_clause}{"${type}.${clause}"}) {
+ $self->$rdr($clause_expr);
+ } else {
+ my ($clause_sql, @bind) = $self->render_aqt($clause_expr);
+ my $sql = join ' ',
+ $self->_sqlcase(join ' ', split '_', $clause),
+ $clause_sql;
+ ($sql, @bind);
+ }
+ };
next unless defined($sql) and length($sql);
- push @parts, [
- $self->_sqlcase(join ' ', split '_', $clause).' '.$sql,
- @bind
- ];
+ push @parts, \@part;
}
return $self->_join_parts(' ', @parts);
}
sub select {
my ($self, @args) = @_;
+
+ return $self->render_expr({ -select => $_[1] }) if ref($_[1]) eq 'HASH';
+
my %clauses;
@clauses{qw(from select where order_by)} = @args;
$clauses{select} = { -literal => [ $clauses{select}||'*' ] }
unless ref($clauses{select});
- my ($sql, @bind) = $self->render_expr({ -select => \%clauses });
- return wantarray ? ($sql, @bind) : $sql;
+ return $self->render_expr({ -select => \%clauses });
+}
+
+sub update {
+ my ($self, $table, $set, $where, $options) = @_;
+
+ return $self->render_expr({ -update => $_[1] }) if ref($_[1]) eq 'HASH';
+
+ my %clauses;
+ @clauses{qw(target set where)} = ($table, $set, $where);
+ puke "Unsupported data type specified to \$sql->update"
+ unless ref($clauses{set}) eq 'HASH';
+ @clauses{keys %$options} = values %$options;
+ return $self->render_expr({ -update => \%clauses });
+}
+
+sub delete {
+ my ($self, $table, $where, $options) = @_;
+
+ return $self->render_expr({ -delete => $_[1] }) if ref($_[1]) eq 'HASH';
+
+ my %clauses = (target => $table, where => $where, %{$options||{}});
+ return $self->render_expr({ -delete => \%clauses });
+}
+
+sub insert {
+ my ($self, $table, $data, $options) = @_;
+
+ return $self->render_expr({ -insert => $_[1] }) if ref($_[1]) eq 'HASH';
+
+ my %clauses = (target => $table, values => $data, %{$options||{}});
+ return $self->render_expr({ -insert => \%clauses });
+}
+
+sub _expand_insert_clause_target {
+ +(target => shift->_expand_maybe_list_expr(@_, -ident));
+}
+
+sub _expand_insert_clause_values {
+ my ($self, $data) = @_;
+ return $data if ref($data) eq 'HASH' and $data->{-row};
+ my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data);
+ return (values => $v_aqt, ($f_aqt ? (fields => $f_aqt) : ()));
}
1;
projects / scpubgit/Q-Branch.git / blobdiff