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
104 $obj->update_from_cgi( $h =>
105 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
113 $self->create_from_cgi( $h =>
114 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
120 if ( my %errors = $fatal ? (FATAL => $fatal) : $obj->cgi_update_errors ) {
122 # Set it up as it was:
123 $r->{template_args}{cgi_params} = $r->{params};
124 $r->{template_args}{errors} = \%errors;
128 $r->template("addnew");
130 $r->template("edit");
134 $r->{template} = "view";
136 $r->objects( [$obj] );
139 sub delete : Exported {
140 return shift->SUPER::delete(@_) if caller ne "Maypole::Model::Base";
141 my ( $self, $r ) = @_;
142 $_->SUPER::delete for @{ $r->objects || [] };
143 $r->objects( [ $self->retrieve_all ] );
144 $r->{template} = "list";
148 sub stringify_column {
151 $class->columns("Stringify"),
152 ( grep { /(name|title)/i } $class->columns ),
153 ( grep { !/id$/i } $class->primary_columns ),
158 my ( $self, $child ) = @_;
159 $child->autoupdate(1);
160 if ( my $col = $child->stringify_column ) {
161 $child->columns( Stringify => $col );
165 sub search : Exported {
166 return shift->SUPER::search(@_) if caller ne "Maypole::Model::Base";
168 # A real CDBI search.
169 my ( $self, $r ) = @_;
170 my %fields = map { $_ => 1 } $self->columns;
171 my $oper = "like"; # For now
172 my %params = %{ $r->{params} };
173 my %values = map { $_ => { $oper, $params{$_} } }
174 grep { length ($params{$_}) and $fields{$_} } keys %params;
176 $r->template("list");
177 if ( !%values ) { return $self->list($r) }
178 my $order = $self->order($r);
179 $self = $self->do_pager($r);
183 \%values, ( $order ? { order_by => $order } : () )
187 $r->{template_args}{search} = 1;
191 my ( $self, $r ) = @_;
192 if ( my $rows = $r->config->rows_per_page ) {
193 return $r->{template_args}{pager} =
194 $self->pager( $rows, $r->query->{page} );
196 else { return $self }
200 my ( $self, $r ) = @_;
202 my %ok_columns = map { $_ => 1 } $self->columns;
203 if ( $order = $r->query->{order} and $ok_columns{$order} ) {
204 $order .= ( $r->query->{o2} eq "desc" && " DESC" );
209 sub list : Exported {
210 my ( $self, $r ) = @_;
211 my $order = $self->order($r);
212 $self = $self->do_pager($r);
214 $r->objects( [ $self->retrieve_all_sorted_by($order) ] );
217 $r->objects( [ $self->retrieve_all ] );
222 my ( $class, $config, $namespace, $dsn, $u, $p, $opts ) = @_;
223 $dsn ||= $config->dsn;
224 $u ||= $config->user;
225 $p ||= $config->pass;
226 $opts ||= $config->opts;
228 warn "No DSN set in config" unless $dsn;
229 $config->loader || $config->loader(
230 Class::DBI::Loader->new(
231 namespace => $namespace,
238 $config->{classes} = [ $config->{loader}->classes ];
239 $config->{tables} = [ $config->{loader}->tables ];
240 warn( 'Loaded tables: ' . join ',', @{ $config->{tables} } )
241 if $namespace->debug;
245 my ( $self, $r, $table ) = @_;
246 return $r->config->loader->_table2class($table);
251 my @pcs = $class->primary_columns;
254 @pks{@pcs}=(@{$r->{args}});
255 return $class->retrieve( %pks );
257 return $class->retrieve( $r->{args}->[0] );