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:
44 =head1 Additional Commands
50 Surprisingly, this command causes a database record to be forever lost.
64 =item stringify_column
70 Given an accessor name as a method, this function returns the class this accessor returns.
77 my ( $self, $r ) = @_;
78 return keys %{ $self->meta_info('has_many') || {} };
82 my ( $self, $r, $accessor ) = @_;
83 my $related = $self->related->{$accessor};
84 if ( my $mapping = $related->{args}->{mapping} ) {
85 return $related->{foreign_class}->meta_info('has_a')->{ $$mapping[0] }
89 return $related->{foreign_class};
93 sub do_edit : Exported {
94 my ( $self, $r ) = @_;
95 my $h = CGI::Untaint->new( %{ $r->{params} } );
97 my ($obj) = @{ $r->objects || [] };
100 # We have something to edit
101 $obj->update_from_cgi( $h =>
102 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
107 $self->create_from_cgi( $h =>
108 { required => $r->{config}{ $r->{table} }{required_cols} || [], }
112 if ( my %errors = $obj->cgi_update_errors ) {
114 # Set it up as it was:
115 $r->{template_args}{cgi_params} = $r->{params};
116 $r->{template_args}{errors} = \%errors;
117 $r->{template} = "edit";
118 undef $obj if $creating; # Couldn't create
121 $r->{template} = "view";
123 $r->objects( [$obj] );
126 sub delete : Exported {
127 return shift->SUPER::delete(@_) if caller ne "Maypole::Model::Base";
128 my ( $self, $r ) = @_;
129 $_->SUPER::delete for @{ $r->objects || [] };
130 $r->objects( [ $self->retrieve_all ] );
131 $r->{template} = "list";
135 sub stringify_column {
138 $class->columns("Stringify"),
139 ( grep { /(name|title)/i } $class->columns ),
140 ( grep { !/id$/i } $class->primary_columns ),
145 my ( $self, $child ) = @_;
146 $child->autoupdate(1);
147 if ( my $col = $child->stringify_column ) {
148 $child->columns( Stringify => $col );
152 sub search : Exported {
153 return shift->SUPER::search(@_) if caller ne "Maypole::Model::Base";
155 # A real CDBI search.
156 my ( $self, $r ) = @_;
157 my %fields = map { $_ => 1 } $self->columns;
158 my $oper = "like"; # For now
159 my %params = %{ $r->{params} };
160 my %values = map { $_ => { $oper, $params{$_} } }
161 grep { defined $params{$_} and $fields{$_} } keys %params;
163 $r->template("list");
164 if ( !%values ) { return $self->list($r) }
165 my $order = $self->order($r);
166 $self = $self->do_pager($r);
170 \%values, ( $order ? { order => $order } : () )
174 $r->{template_args}{search} = 1;
178 my ( $self, $r ) = @_;
179 if ( my $rows = $r->config->rows_per_page ) {
180 return $r->{template_args}{pager} =
181 $self->pager( $rows, $r->query->{page} );
183 else { return $self }
187 my ( $self, $r ) = @_;
189 my %ok_columns = map { $_ => 1 } $self->columns;
190 if ( $order = $r->query->{order} and $ok_columns{$order} ) {
191 $order .= ( $r->query->{o2} eq "desc" && " DESC" );
196 sub list : Exported {
197 my ( $self, $r ) = @_;
198 my $order = $self->order($r);
199 $self = $self->do_pager($r);
201 $r->objects( [ $self->retrieve_all_sorted_by($order) ] );
204 $r->objects( [ $self->retrieve_all ] );
209 my ( $self, $config, $namespace, $dsn, $u, $p, $opts ) = @_;
210 $dsn ||= $config->dsn;
211 $u ||= $config->user;
212 $p ||= $config->pass;
213 $opts ||= $config->opts;
215 $config->loader || $config->loader(
216 Class::DBI::Loader->new(
217 namespace => $namespace,
224 $config->{classes} = [ $config->{loader}->classes ];
225 $config->{tables} = [ $config->{loader}->tables ];
226 warn( 'Loaded tables: ' . join ',', @{ $config->{tables} } )
227 if $namespace->debug;
231 my ( $self, $r, $table ) = @_;
232 return $r->config->loader->_table2class($table);