It inherits accessor and helper methods from L<Maypole::Model::Base>.
-=cut
+When specified as the application model, it will use Class::DBI::Loader
+to generate the model classes from the provided database. If you do not
+wish to use this functionality, use L<Maypole::Model::CDBI::Plain> which
+will instead use Class::DBI classes provided.
-use base qw(Maypole::Model::Base Class::DBI);
-use Maypole::Model::CDBI::AsForm;
-use CGI::Untaint::Maypole;
+=cut
-use Class::DBI::FromCGI;
+use base qw(Maypole::Model::CDBI::Base);
+use Data::Dumper;
use Class::DBI::Loader;
-use Class::DBI::AbstractSearch;
-use Class::DBI::Plugin::RetrieveAll;
-use Class::DBI::Pager;
-
-use Lingua::EN::Inflect::Number qw(to_PL);
use attributes ();
-###############################################################################
-# Helper methods
-
-=head1 Action Methods
-
-Action methods are methods that are accessed through web (or other public) interface.
+use Maypole::Model::CDBI::AsForm;
+use Maypole::Model::CDBI::FromCGI;
+use CGI::Untaint::Maypole;
-=item do_edit
+=head2 Untainter
-If there is an object in C<$r-E<gt>objects>, then it should be edited
-with the parameters in C<$r-E<gt>params>; otherwise, a new object should
-be created with those parameters, and put back into C<$r-E<gt>objects>.
-The template should be changed to C<view>, or C<edit> if there were any
-errors. A hash of errors will be passed to the template.
+Set the class you use to untaint and validate form data
+Note it must be of type CGI::Untaint::Maypole (takes $r arg) or CGI::Untaint
=cut
-sub do_edit : Exported {
- my ($self, $r, $obj) = @_;
+sub Untainter { 'CGI::Untaint::Maypole' };
- my $config = $r->config;
- my $table = $r->table;
+=head2 add_model_superclass
- # handle cancel button hits
- if ( $r->{params}->{cancel} ) {
- $r->template("list");
- $r->objects( [$self->retrieve_all] );
- return;
- }
+Adds model as superclass to model classes (if necessary)
- my $required_cols = $config->{$table}->{required_cols} || [];
- my $ignored_cols = $r->{config}{ $r->{table} }{ignore_cols} || [];
+Inherited from Maypole::Model::CDBI::Base
- ($obj, my $fatal, my $creating) = $self->_do_update_or_create($r, $obj, $required_cols, $ignored_cols);
-
- # handle errors, if none, proceed to view the newly created/updated object
- my %errors = $fatal ? (FATAL => $fatal) : $obj->cgi_update_errors;
-
- if (%errors) {
- # Set it up as it was:
- $r->template_args->{cgi_params} = $r->params;
- $r->template_args->{errors} = \%errors;
+=head1 Action Methods
- undef $obj if $creating;
- $r->template("edit");
- } else {
- $r->template("view");
- }
+Action methods are methods that are accessed through web (or other public) interface.
- $r->objects( $obj ? [$obj] : []);
-}
+Inherited from L<Maypole::Model::CDBI::Base>
-# split out from do_edit to be reported by Mp::P::Trace
-sub _do_update_or_create {
- my ($self, $r, $obj, $required_cols, $ignored_cols) = @_;
-
- my $fatal;
- my $creating = 0;
- my $h = CGI::Untaint::Maypole->new( %{$r->params} );
-
- # update or create
- if ($obj) {
- # We have something to edit
- eval { $obj->update_from_cgi( $h => {
- required => $required_cols,
- ignore => $ignored_cols,
- } ) };
- $fatal = $@;
- } else {
- eval {
- $obj = $self->create_from_cgi( $h => {
- required => $required_cols,
- ignore => $ignored_cols,
- } )
- };
-
- if ($fatal = $@) {
- warn "$fatal" if $r->debug;
- }
- $creating++;
- }
-
- return $obj, $fatal, $creating;
-}
+=head2 do_edit
+If there is an object in C<$r-E<gt>objects>, then it should be edited
+with the parameters in C<$r-E<gt>params>; otherwise, a new object should
+be created with those parameters, and put back into C<$r-E<gt>objects>.
+The template should be changed to C<view>, or C<edit> if there were any
+errors. A hash of errors will be passed to the template.
=head2 do_delete
-Unsuprisingly, this command causes a database record to be forever lost.
-
-This method replaces the, now deprecated, delete method provided in prior versions
-
-=cut
-
-sub delete : Exported {
- my $self = shift;
- my ($sub) = (caller(1))[3];
- $sub =~ /^(.+)::([^:]+)$/;
- # So subclasses can still send search down ...
- return ($1 ne "Maypole::Model::Base" && $2 ne "delete") ?
- $self->SUPER::search(@_) : $self->do_delete(@_);
-}
-
-sub do_delete {
- my ( $self, $r ) = @_;
- $_->SUPER::delete for @{ $r->objects || [] };
- $r->objects( [ $self->retrieve_all ] );
- $r->{template} = "list";
- $self->list($r);
-}
+Inherited from Maypole::Model::CDBI::Base.
+This action deletes records
=head2 do_search
-This action method searches for database records, it replaces
-the, now deprecated, search method previously provided.
-
-=cut
-
-sub search : Exported {
- my $self = shift;
- my ($sub) = (caller(1))[3];
- $sub =~ /^(.+)::([^:]+)$/;
- # So subclasses can still send search down ...
- return ($1 ne "Maypole::Model::Base" && $2 ne "search") ?
- $self->SUPER::search(@_) : $self->do_search(@_);
-}
+Inherited from Maypole::Model::CDBI::Base.
-sub do_search : Exported {
- my ( $self, $r ) = @_;
- my %fields = map { $_ => 1 } $self->columns;
- my $oper = "like"; # For now
- my %params = %{ $r->{params} };
- my %values = map { $_ => { $oper, $params{$_} } }
- grep { defined $params{$_} && length ($params{$_}) && $fields{$_} }
- keys %params;
-
- $r->template("list");
- if ( !%values ) { return $self->list($r) }
- my $order = $self->order($r);
- $self = $self->do_pager($r);
- $r->objects(
- [
- $self->search_where(
- \%values, ( $order ? { order_by => $order } : () )
- )
- ]
- );
- $r->{template_args}{search} = 1;
-}
+This action method searches for database records.
=head2 list
+Inherited from Maypole::Model::CDBI::Base.
+
The C<list> method fills C<$r-E<gt>objects> with all of the
objects in the class. The results are paged using a pager.
-=cut
-
-sub list : Exported {
- my ( $self, $r ) = @_;
- my $order = $self->order($r);
- $self = $self->do_pager($r);
- if ($order) {
- $r->objects( [ $self->retrieve_all_sorted_by($order) ] );
- }
- else {
- $r->objects( [ $self->retrieve_all ] );
- }
-}
-
-#######################
-# _process_local_srch #
-#######################
-
-# Makes the local part of the db search query
-# Puts search prams local to this table in where array.
-# Returns a where array ref and search criteria string.
-# This is factored out of do_search so sub classes can override this part
-sub _process_local_srch {
- my ($self, $hashed) = @_;
- my %fields = map { $_ => 1 } $self->columns;
- my $moniker = $self->moniker;
- my %colnames = $self->column_names;
- my $srch_crit = '';
- my ($oper, $wc);
- my @where = map {
- # prelim
- $srch_crit .= ' '.$colnames{$_}." = '".$hashed->{$_}."'";
- $oper = $self->sql_search_oper($_);
- $wc = $oper =~ /LIKE/i ? '%':''; # match any substr
- "$moniker.$_ $oper '$wc" . $hashed->{$_} . "$wc'"; #the where clause
- }
- grep { defined $hashed->{$_} && length ($hashed->{$_}) && $fields{$_} }
- keys %$hashed;
-
- return (\@where, $srch_crit);
-}
-
-#########################
-# _process_foreign_srch #
-#########################
-
-# puts foreign search fields into select statement
-# changes @where by ref and return sel and srch_criteria string
-sub _process_foreign_srch {
- my ($self, $hashed, $sel, $where, $srch_crit) = @_;
- my %colnames = $self->column_names;
- my $moniker = $self->moniker;
- my %foreign;
- foreach (keys %$hashed) {
- $foreign{$_} = delete $hashed->{$_} if ref $hashed->{$_};
- }
- my %accssr_class = %{$self->accessor_classes};
- while (my ( $accssr, $prms) = each %foreign ) {
- my $fclass = $accssr_class{$accssr};
- my %fields = map { $_ => 1 } $fclass->columns;
- my %colnames = $fclass->column_names;
- my ($oper, $wc);
- my @this_where =
- # TODO make field name match in all cases in srch crit
- map {
- # prelim
- $srch_crit.= ' '.$colnames{$_}." = '".$prms->{$_}."'";
- $oper = $fclass->sql_search_oper($_);
- $wc = $oper =~ /LIKE/i ? '%':'';
- "$accssr.$_ $oper '$wc".$prms->{$_}."$wc'"; # the where
- }
- grep { defined $prms->{$_} && length ($prms->{$_}) && $fields{$_} }
- keys %$prms;
-
- next unless @this_where;
- $sel .= ", " . $fclass->table . " $accssr"; # add foreign tables to from
-
- # map relationships -- TODO use constraints in has_many and mhaves
- # and make general
- my $pk = $self->primary_column;
- if ($fclass->find_column('owner_id') && $fclass->find_column('owner_table') ) {
- unshift @this_where, ("$accssr.owner_id = $moniker.$pk",
- "$accssr.owner_table = '" . $self->table ."'");
- }
- # for has_own, has_a where foreign id is in self's table
- elsif ( my $fk = $self->find_column($fclass->primary_column) ) {
- unshift @this_where, "$accssr." . $fk->name . " = $moniker." . $fk->name;
- }
- push @$where, @this_where;
- }
- return ($sel, $srch_crit);
-}
-
-###############################################################################
-# Helper methods
-
=head1 Helper Methods
+=head2 setup
-=head2 adopt
-
-This class method is passed the name of a model class that represensts a table
-and allows the master model class to do any set-up required.
-
-=cut
-
-sub adopt {
- my ( $self, $child ) = @_;
- $child->autoupdate(1);
- if ( my $col = $child->stringify_column ) {
- $child->columns( Stringify => $col );
- }
-}
-
-=head2 is_class
-
-Tell if action is a class method (See Maypole::Plugin::Menu)
-
-=cut
-
-sub is_class {
- my ( $self, $method, $attrs ) = @_;
- die "Usage: method must be passed as first arg" unless $method;
- $attrs = join(' ',$self->method_attrs($method)) unless ($attrs);
- return 1 if $attrs =~ /\bClass\b/i;
- return 1 if $method =~ /^list$/; # default class actions
- return 0;
-}
-
-=head2 is_object
-
-Tell if action is a object method (See Maypole::Plugin::Menu)
+ This method is inherited from Maypole::Model::Base and calls setup_database,
+ which uses Class::DBI::Loader to create and load Class::DBI classes from
+ the given database schema.
=cut
-sub is_object {
- my ( $self, $method, $attrs ) = @_;
- die "Usage: method must be passed as first arg" unless $method;
- $attrs = join(' ',$self->method_attrs($method)) unless ($attrs);
- return 1 if $attrs =~ /\bObject\b/i;
- return 1 if $method =~ /(^view$|^edit$|^delete$)/; # default object actions
- return 0;
-}
-
-
-=head2 related
-
-This method returns a list of has-many accessors. A brewery has many
-beers, so C<BeerDB::Brewery> needs to return C<beers>.
-
-=cut
-
-sub related {
- my ( $self, $r ) = @_;
- return keys %{ $self->meta_info('has_many') || {} };
-}
-
-
-=head2 related_class
-
-Given an accessor name as a method, this function returns the class this accessor returns.
-
-=cut
+=head2 setup_database
-sub related_class {
- my ( $self, $r, $accessor ) = @_;
- my $meta = $self->meta_info;
- my @rels = keys %$meta;
- my $related;
- foreach (@rels) {
- $related = $meta->{$_}{$accessor};
- last if $related;
- }
- return unless $related;
-
- my $mapping = $related->{args}->{mapping};
- if ( $mapping and @$mapping ) {
- return $related->{foreign_class}->meta_info('has_a')->{$$mapping[0]}->{foreign_class};
- }
- else {
- return $related->{foreign_class};
- }
+The $opts argument is a hashref of options. The "options" key is a hashref of
+Database connection options . Other keys may be various Loader arguments or
+flags. It has this form:
+ {
+ # DB connection options
+ options { AutoCommit => 1 , ... },
+ # Loader args
+ relationships => 1,
+ ...
}
-=head2 isa_class
-
-Returns class of a column inherited by is_a, assumes something can be more than one thing (have * is_a rels)
-
-=cut
-
-sub isa_class {
- my ($class, $col) = @_;
- $class->_croak( "Need a column for isa_class." ) unless $col;
- my $isaclass;
- # class col is first found in is returned
- my $isa = $class->meta_info("is_a") || {};
- foreach ( keys %$isa ) {
- $isaclass = $isa->{$_}->foreign_class;
- return $isaclass if ($isaclass->find_column($col));
- }
- return 0; # col not in a is_a class
-}
-
-=head2 accessor_classes
-
-Returns hash ref of classes for accessors.
-
-This is an attempt at a more efficient method than calling "related_class()"
-a bunch of times when you need it for many relations.
-
-=cut
-
-sub accessor_classes {
- my ($self, $class) = @_; # can pass a class arg to get accssor classes for
- $class ||= $self;
- my $meta = $class->meta_info;
- my %res;
- foreach my $rel (keys %$meta) {
- my $rel_meta = $meta->{$rel};
- %res = ( %res, map { $_ => $rel_meta->{$_}->{foreign_class} }
- keys %$rel_meta );
- }
- return \%res;
-
- # 2 liner to get class of accessor for $name
- #my $meta = $class->meta_info;
- #my ($isa) = map $_->foreign_class, grep defined,
- # map $meta->{$_}->{$name}, keys %$meta;
-
-}
-
-
-=head2 stringify_column
-
-=cut
-
-sub stringify_column {
- my $class = shift;
- return (
- $class->columns("Stringify"),
- ( grep { /^(name|title)$/i } $class->columns ),
- ( grep { /(name|title)/i } $class->columns ),
- ( grep { !/id$/i } $class->primary_columns ),
- )[0];
-}
-
-=head2 do_pager
-
-=cut
-
-sub do_pager {
- my ( $self, $r ) = @_;
- if ( my $rows = $r->config->rows_per_page ) {
- return $r->{template_args}{pager} =
- $self->pager( $rows, $r->query->{page} );
- }
- else { return $self }
-}
-
-
-=head2 order
-
-=cut
-
-sub order {
- my ( $self, $r ) = @_;
- my %ok_columns = map { $_ => 1 } $self->columns;
- my $q = $r->query;
- my $order = $q->{order};
- return unless $order and $ok_columns{$order};
- $order .= ' DESC' if $q->{o2} and $q->{o2} eq 'desc';
- return $order;
-}
-
-=head2 setup_database
-
=cut
sub setup_database {
);
$config->{classes} = [ $config->{loader}->classes ];
$config->{tables} = [ $config->{loader}->tables ];
- warn( 'Loaded tables: ' . join ',', @{ $config->{tables} } )
+
+ my @table_class = map { $_ . " => " . $config->{loader}->_table2class($_) } @{ $config->{tables} };
+ warn( 'Loaded tables to classes: ' . join ', ', @table_class )
if $namespace->debug;
}
+=head2 class_of
+
+ returns class for given table
+
+=cut
+
sub class_of {
my ( $self, $r, $table ) = @_;
return $r->config->loader->_table2class($table); # why not find_class ?
}
-sub fetch_objects {
- my ($class, $r)=@_;
- my @pcs = $class->primary_columns;
- if ( $#pcs ) {
- my %pks;
- @pks{@pcs}=(@{$r->{args}});
- return $class->retrieve( %pks );
- }
- return $class->retrieve( $r->{args}->[0] );
-}
+=head1 SEE ALSO
-###############################################################################
-# private / internal functions and classes
+L<Maypole>, L<Maypole::Model::CDBI::Base>.
-sub _column_info {
- my $class = shift;
- $class = ref $class || $class;
- no strict 'refs';
- return ${$class . '::COLUMN_INFO'};
-}
+=head1 AUTHOR
+
+Maypole is currently maintained by Aaron Trevena.
+
+=head1 AUTHOR EMERITUS
+
+Simon Cozens, C<simon#cpan.org>
+
+Simon Flack maintained Maypole from 2.05 to 2.09
+
+Sebastian Riedel, C<sri#oook.de> maintained Maypole from 1.99_01 to 2.04
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
1;
projects / maypole.git / blobdiff