X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=lib%2FMaypole%2FView%2FBase.pm;h=c56ee51b1bb320ed2dd16c857506a3b1ff367256;hb=579b095b4e7b43a74f90334df6e79fe2366ef48c;hp=fdc66298adf38c5db34cb02258197ff5a2e441dd;hpb=5f530b5f17106319faa2f437a567332c86bf6a2c;p=maypole.git

diff --git a/lib/Maypole/View/Base.pm b/lib/Maypole/View/Base.pm
index fdc6629..c56ee51 100644
--- a/lib/Maypole/View/Base.pm
+++ b/lib/Maypole/View/Base.pm
@@ -34,16 +34,17 @@ sub vars {
           # ...
     );
     if ($class) {
-        $args{classmetadata} = {
-            name              => $class,
-            table             => $class->table,
-            columns           => [ $class->display_columns ],
-            colnames          => { $class->column_names },
-            related_accessors => [ $class->related($r) ],
-            moniker           => $class->moniker,
-            plural            => $class->plural_moniker,
-            cgi               => { $class->to_cgi },
-        };
+        my $classmeta = $args{classmetadata} ||= {};
+        $classmeta->{name}              ||= $class;
+        $classmeta->{description}       ||= $class->description;
+        $classmeta->{table}             ||= $class->table;
+        $classmeta->{columns}           ||= [ $class->display_columns ];
+        $classmeta->{list_columns}      ||= [ $class->list_columns ];
+        $classmeta->{colnames}          ||= { $class->column_names };
+        $classmeta->{related_accessors} ||= [ $class->related($r) ];
+        $classmeta->{moniker}           ||= $class->moniker;
+        $classmeta->{plural}            ||= $class->plural_moniker;
+        $classmeta->{cgi}               ||= { $class->to_cgi };
 
         # User-friendliness facility for custom template writers.
         if ( @{ $r->objects || [] } > 1 ) {
@@ -55,22 +56,25 @@ sub vars {
     }
 
     # Overrides
+    local $r->{template_args} = $r->{template_args};
+    delete $r->{template_args}{classmetadata}; # already overrides
     %args = ( %args, %{ $r->{template_args} || {} } );
     %args;
 }
 
 sub process {
     my ( $self, $r ) = @_;
-    my $status = $self->template($r);
-    return $self->error($r) if $status != OK;
     $r->{content_type}      ||= "text/html";
     $r->{document_encoding} ||= "utf-8";
+    my $status = $self->template($r);
+    return $self->error($r) if $status != OK;
     return OK;
 }
 
 sub error {
-    my ( $self, $r ) = @_;
-    warn $r->{error};
+    my ( $self, $r, $desc ) = @_;
+    $desc = $desc ? "$desc: " : "";
+    warn $desc . $r->{error} ."\n";
     if ( $r->{error} =~ /not found$/ ) {
 
         # This is a rough test to see whether or not we're a template or
@@ -108,3 +112,53 @@ EOF
 sub template { die shift() . " didn't define a decent template method!" }
 
 1;
+
+
+=head1 NAME
+
+Maypole::View::Base - Base cl
+
+=head1 DESCRIPTION
+
+This is the base class for Maypole view classes. This is an abstract class
+meant to define the interface, and can't be used directly.
+
+=head2 process
+
+This is the engine of this module. It populates all the relevant variables
+and calls the requested action.
+
+Anyone subclassing this for a different database abstraction mechanism
+needs to provide the following methods:
+
+=head2 template 
+
+In this method you do the actual processing of your template. it should use L<paths> 
+to search for components, and provide the templates with easy access to the contents
+of L<vars>. It should put the result in $r->{output} and return OK if processing was
+sucessfull, or populate $r->{error} and return ERROR if it fails.
+
+=head1 Other overrides
+
+Additionally, individual derived model classes may want to override the
+
+=head2 new
+
+The default constructor does nothing. You can override this to perform actions
+during view initialization.
+
+=head2 paths
+
+Returns search paths for templates. the default method returns factory, custom and
+<tablename> under the configured template root.
+
+=head2 vars
+
+returns a hash of data the template should have access to. The default one populates
+classmetadata if there is a class, as well as setting the data objects by name if 
+there is one or more objects available.
+
+=head2 error
+
+
+=cut