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ea2e61bf |
1 | package DBIx::Class::Table; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
510ca912 |
6 | use base qw/Class::Data::Inheritable DBIx::Class::SQL/; |
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7 | |
8 | __PACKAGE__->mk_classdata('_columns' => {}); |
9 | |
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10 | __PACKAGE__->mk_classdata('_table_name'); |
11 | |
9bc6db13 |
12 | __PACKAGE__->mk_classdata('table_alias'); # FIXME XXX |
13 | |
ea2e61bf |
14 | sub new { |
15 | my ($class, $attrs) = @_; |
16 | $class = ref $class if ref $class; |
17 | my $new = bless({ _column_data => { } }, $class); |
18 | if ($attrs) { |
8fe001e1 |
19 | die "attrs must be a hashref" unless ref($attrs) eq 'HASH'; |
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20 | while (my ($k, $v) = each %{$attrs}) { |
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21 | $new->store_column($k => $v); |
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22 | } |
23 | } |
8fe001e1 |
24 | return $new; |
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25 | } |
26 | |
27 | sub insert { |
28 | my ($self) = @_; |
29 | return if $self->{_in_database}; |
30 | my $sth = $self->_get_sth('insert', [ keys %{$self->{_column_data}} ], |
31 | $self->_table_name, undef); |
32 | $sth->execute(values %{$self->{_column_data}}); |
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33 | $sth->finish; |
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34 | $self->{_in_database} = 1; |
8fe001e1 |
35 | $self->{_dirty_columns} = {}; |
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36 | return $self; |
37 | } |
38 | |
604d9f38 |
39 | sub in_database { |
40 | return $_[0]->{_in_database}; |
41 | } |
42 | |
ea2e61bf |
43 | sub create { |
44 | my ($class, $attrs) = @_; |
8fe001e1 |
45 | die "create needs a hashref" unless ref $attrs eq 'HASH'; |
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46 | return $class->new($attrs)->insert; |
47 | } |
48 | |
49 | sub update { |
50 | my ($self) = @_; |
51 | die "Not in database" unless $self->{_in_database}; |
52 | my @to_update = keys %{$self->{_dirty_columns} || {}}; |
a3018bd3 |
53 | return -1 unless @to_update; |
ea2e61bf |
54 | my $sth = $self->_get_sth('update', \@to_update, |
55 | $self->_table_name, $self->_ident_cond); |
a3018bd3 |
56 | my $rows = $sth->execute( (map { $self->{_column_data}{$_} } @to_update), |
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57 | $self->_ident_values ); |
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58 | $sth->finish; |
a3018bd3 |
59 | if ($rows == 0) { |
60 | die "Can't update $self: row not found"; |
61 | } elsif ($rows > 1) { |
62 | die "Can't update $self: updated more than one row"; |
63 | } |
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64 | $self->{_dirty_columns} = {}; |
65 | return $self; |
66 | } |
67 | |
68 | sub delete { |
a3018bd3 |
69 | my $self = shift; |
70 | if (ref $self) { |
604d9f38 |
71 | die "Not in database" unless $self->{_in_database}; |
b8e1e21f |
72 | #warn $self->_ident_cond.' '.join(', ', $self->_ident_values); |
a3018bd3 |
73 | my $sth = $self->_get_sth('delete', undef, |
74 | $self->_table_name, $self->_ident_cond); |
75 | $sth->execute($self->_ident_values); |
76 | $sth->finish; |
77 | delete $self->{_in_database}; |
78 | } else { |
12bbb339 |
79 | my $attrs = { }; |
80 | if (@_ > 1 && ref $_[$#_] eq 'HASH') { |
81 | $attrs = { %{ pop(@_) } }; |
82 | } |
a3018bd3 |
83 | my $query = (ref $_[0] eq 'HASH' ? $_[0] : {@_}); |
12bbb339 |
84 | my ($cond, @param) = $self->_cond_resolve($query, $attrs); |
a3018bd3 |
85 | my $sth = $self->_get_sth('delete', undef, $self->_table_name, $cond); |
12bbb339 |
86 | $sth->execute(@param); |
a3018bd3 |
87 | $sth->finish; |
88 | } |
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89 | return $self; |
90 | } |
91 | |
510ca912 |
92 | sub get_column { |
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93 | my ($self, $column) = @_; |
8fe001e1 |
94 | die "Can't fetch data as class method" unless ref $self; |
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95 | die "No such column '${column}'" unless $self->_columns->{$column}; |
a3018bd3 |
96 | return $self->{_column_data}{$column} if $self->_columns->{$column}; |
ea2e61bf |
97 | } |
98 | |
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99 | sub set_column { |
100 | my $self = shift; |
101 | my ($column) = @_; |
102 | my $ret = $self->store_column(@_); |
103 | $self->{_dirty_columns}{$column} = 1; |
104 | return $ret; |
105 | } |
106 | |
107 | sub store_column { |
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108 | my ($self, $column, $value) = @_; |
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109 | die "No such column '${column}'" unless $self->_columns->{$column}; |
110 | die "set_column called for ${column} without value" if @_ < 3; |
111 | return $self->{_column_data}{$column} = $value; |
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112 | } |
113 | |
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114 | sub _register_columns { |
115 | my ($class, @cols) = @_; |
116 | my $names = { %{$class->_columns} }; |
117 | $names->{$_} ||= {} for @cols; |
118 | $class->_columns($names); |
119 | } |
120 | |
121 | sub _mk_column_accessors { |
122 | my ($class, @cols) = @_; |
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123 | $class->mk_group_accessors('column' => @cols); |
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124 | } |
125 | |
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126 | sub add_columns { |
8fe001e1 |
127 | my ($class, @cols) = @_; |
128 | $class->_register_columns(@cols); |
129 | $class->_mk_column_accessors(@cols); |
130 | } |
131 | |
132 | sub retrieve_from_sql { |
133 | my ($class, $cond, @vals) = @_; |
a3018bd3 |
134 | $cond =~ s/^\s*WHERE//i; |
604d9f38 |
135 | my $attrs = (ref $vals[$#vals] eq 'HASH' ? pop(@vals) : {}); |
136 | my @cols = $class->_select_columns($attrs); |
8fe001e1 |
137 | my $sth = $class->_get_sth( 'select', \@cols, $class->_table_name, $cond); |
b8e1e21f |
138 | #warn "$cond @vals"; |
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139 | return $class->sth_to_objects($sth, \@vals, \@cols); |
140 | } |
141 | |
142 | sub sth_to_objects { |
143 | my ($class, $sth, $args, $cols) = @_; |
144 | my @cols = ((ref $cols eq 'ARRAY') ? @$cols : @{$sth->{NAME_lc}} ); |
145 | $sth->execute(@$args); |
8fe001e1 |
146 | my @found; |
147 | while (my @row = $sth->fetchrow_array) { |
148 | my $new = $class->new; |
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149 | $new->store_column($_, shift @row) for @cols; |
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150 | $new->{_in_database} = 1; |
151 | push(@found, $new); |
152 | } |
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153 | $sth->finish; |
8fe001e1 |
154 | return @found; |
155 | } |
156 | |
157 | sub search { |
12bbb339 |
158 | my $class = shift; |
159 | my $attrs = { }; |
160 | if (@_ > 1 && ref $_[$#_] eq 'HASH') { |
161 | $attrs = { %{ pop(@_) } }; |
162 | } |
163 | my $query = ref $_[0] eq "HASH" ? shift: {@_}; |
164 | my ($cond, @param) = $class->_cond_resolve($query, $attrs); |
165 | return $class->retrieve_from_sql($cond, @param); |
a3018bd3 |
166 | } |
167 | |
168 | sub search_like { |
169 | my $class = shift; |
12bbb339 |
170 | my $attrs = { }; |
171 | if (@_ > 1 && ref $_[$#_] eq 'HASH') { |
172 | $attrs = pop(@_); |
173 | } |
174 | return $class->search(@_, { %$attrs, cmp => 'LIKE' }); |
8fe001e1 |
175 | } |
176 | |
177 | sub _select_columns { |
178 | return keys %{$_[0]->_columns}; |
179 | } |
180 | |
181 | sub copy { |
182 | my ($self, $changes) = @_; |
183 | my $new = bless({ _column_data => { %{$self->{_column_data}}} }, ref $self); |
510ca912 |
184 | $new->set_column($_ => $changes->{$_}) for keys %$changes; |
a3018bd3 |
185 | return $new->insert; |
186 | } |
187 | |
12bbb339 |
188 | sub _cond_resolve { |
189 | my ($self, $query, $attrs) = @_; |
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190 | return '1 = 1' unless keys %$query; |
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191 | my $op = $attrs->{'cmp'} || '='; |
a3018bd3 |
192 | my $cond = join(' AND ', |
193 | map { (defined $query->{$_} |
194 | ? "$_ $op ?" |
195 | : (do { delete $query->{$_}; "$_ IS NULL"; })); |
196 | } keys %$query); |
12bbb339 |
197 | return ($cond, values %$query); |
8fe001e1 |
198 | } |
199 | |
510ca912 |
200 | sub table { |
201 | shift->_table_name(@_); |
202 | } |
203 | |
ea2e61bf |
204 | 1; |