1 package Maypole::Model::CDBI;
2 use base qw(Maypole::Model::Base Class::DBI);
3 use Class::DBI::AsForm;
4 use Class::DBI::FromCGI;
5 use Class::DBI::Loader;
6 use Class::DBI::AbstractSearch;
7 use Class::DBI::Plugin::RetrieveAll;
10 use Lingua::EN::Inflect::Number qw(to_PL);
16 Maypole::Model::CDBI - Model class based on Class::DBI
20 This is a master model class which uses C<Class::DBI> to do all the hard
21 work of fetching rows and representing them as objects. It is a good
22 model to copy if you're replacing it with other database abstraction
25 It implements a base set of methods required for a Maypole Data Model.
26 See L<Maypole::Model::Base> for these:
46 =head1 Additional Commands
52 Surprisingly, this command causes a database record to be forever lost.
66 =item stringify_column
72 Given an accessor name as a method, this function returns the class this accessor returns.
79 my ( $self, $r ) = @_;
80 return keys %{ $self->meta_info('has_many') || {} };
84 my ( $self, $r, $accessor ) = @_;
85 my $related = $self->related->{$accessor};
86 if ( my $mapping = $related->{args}->{mapping} ) {
87 return $related->{foreign_class}->meta_info('has_a')->{ $$mapping[0] }
91 return $related->{foreign_class};
95 sub do_edit : Exported {
96 my ( $self, $r ) = @_;
97 my $h = CGI::Untaint->new( %{ $r->{params} } );
99 my ($obj) = @{ $r->objects || [] };
102 # We have something to edit
103 $obj->update_from_cgi( $h =>
104 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
109 $self->create_from_cgi( $h =>
110 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
114 if ( my %errors = $obj->cgi_update_errors ) {
116 # Set it up as it was:
117 $r->{template_args}{cgi_params} = $r->{params};
118 $r->{template_args}{errors} = \%errors;
119 $r->{template} = "edit";
120 undef $obj if $creating; # Couldn't create
123 $r->{template} = "view";
125 $r->objects( [$obj] );
128 sub delete : Exported {
129 return shift->SUPER::delete(@_) if caller ne "Maypole::Model::Base";
130 my ( $self, $r ) = @_;
131 $_->SUPER::delete for @{ $r->objects || [] };
132 $r->objects( [ $self->retrieve_all ] );
133 $r->{template} = "list";
137 sub stringify_column {
140 $class->columns("Stringify"),
141 ( grep { /(name|title)/i } $class->columns ),
142 ( grep { !/id$/i } $class->primary_columns ),
147 my ( $self, $child ) = @_;
148 $child->autoupdate(1);
149 if ( my $col = $child->stringify_column ) {
150 $child->columns( Stringify => $col );
154 sub search : Exported {
155 return shift->SUPER::search(@_) if caller ne "Maypole::Model::Base";
157 # A real CDBI search.
158 my ( $self, $r ) = @_;
159 my %fields = map { $_ => 1 } $self->columns;
160 my $oper = "like"; # For now
161 my %params = %{ $r->{params} };
162 my %values = map { $_ => { $oper, $params{$_} } }
163 grep { length ($params{$_}) and $fields{$_} } keys %params;
165 $r->template("list");
166 if ( !%values ) { return $self->list($r) }
167 my $order = $self->order($r);
168 $self = $self->do_pager($r);
172 \%values, ( $order ? { order_by => $order } : () )
176 $r->{template_args}{search} = 1;
180 my ( $self, $r ) = @_;
181 if ( my $rows = $r->config->rows_per_page ) {
182 return $r->{template_args}{pager} =
183 $self->pager( $rows, $r->query->{page} );
185 else { return $self }
189 my ( $self, $r ) = @_;
191 my %ok_columns = map { $_ => 1 } $self->columns;
192 if ( $order = $r->query->{order} and $ok_columns{$order} ) {
193 $order .= ( $r->query->{o2} eq "desc" && " DESC" );
198 sub list : Exported {
199 my ( $self, $r ) = @_;
200 my $order = $self->order($r);
201 $self = $self->do_pager($r);
203 $r->objects( [ $self->retrieve_all_sorted_by($order) ] );
206 $r->objects( [ $self->retrieve_all ] );
211 my ( $class, $config, $namespace, $dsn, $u, $p, $opts ) = @_;
212 $dsn ||= $config->dsn;
213 $u ||= $config->user;
214 $p ||= $config->pass;
215 $opts ||= $config->opts;
217 warn "No DSN set in config" unless $dsn;
218 $config->loader || $config->loader(
219 Class::DBI::Loader->new(
220 namespace => $namespace,
227 $config->{classes} = [ $config->{loader}->classes ];
228 $config->{tables} = [ $config->{loader}->tables ];
229 warn( 'Loaded tables: ' . join ',', @{ $config->{tables} } )
230 if $namespace->debug;
234 my ( $self, $r, $table ) = @_;
235 return $r->config->loader->_table2class($table);
240 my @pcs = $class->primary_columns;
243 @pks{@pcs}=(@{$r->{args}});
244 return $class->retrieve( %pks );
246 return $class->retrieve( %$r->{args}->[0] );