X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FInflateColumn.pm;h=d9817feb7ae167df1880328f3eb5cf88b0fa9467;hb=77d6b403a25fbc60eccf11e0466ab4ce5b255a4b;hp=6efbe13543d6ff5050cbf5c09c45c4a00b7ae03c;hpb=9fcda149ae69bff53f58a198d4b922e64e6b5c83;p=dbsrgits%2FDBIx-Class-Historic.git diff --git a/lib/DBIx/Class/InflateColumn.pm b/lib/DBIx/Class/InflateColumn.pm index 6efbe13..d9817fe 100644 --- a/lib/DBIx/Class/InflateColumn.pm +++ b/lib/DBIx/Class/InflateColumn.pm @@ -6,7 +6,7 @@ use warnings; use base qw/DBIx::Class::Row/; -=head1 NAME +=head1 NAME DBIx::Class::InflateColumn - Automatically create objects from column data @@ -25,13 +25,13 @@ the column data. It also "deflates" objects into an appropriate format for the database. It can be used, for example, to automatically convert to and from -L objects for your date and time fields. +L objects for your date and time fields. =head1 METHODS =head2 inflate_column -Instruct L to inflate the given column. +Instruct L to inflate the given column. In addition to the column name, you must provide C and C methods. The C method is called when you access @@ -50,6 +50,11 @@ corresponding table class using something like: (Replace L with the appropriate module for your database, or consider L.) +The coderefs you set for inflate and deflate are called with two parameters, +the first is the value of the column to be inflated/deflated, the second is the +row object itself. Thus you can call C<< ->result_source->schema->storage->dbh >> on +it, to feed to L. + In this example, calls to an event's C accessor return a L object. This L object is later "deflated" when used in the database layer. @@ -58,8 +63,10 @@ used in the database layer. sub inflate_column { my ($self, $col, $attrs) = @_; - $self->throw_exception("No such column $col to inflate") unless $self->has_column($col); - $self->throw_exception("inflate_column needs attr hashref") unless ref $attrs eq 'HASH'; + $self->throw_exception("No such column $col to inflate") + unless $self->has_column($col); + $self->throw_exception("inflate_column needs attr hashref") + unless ref $attrs eq 'HASH'; $self->column_info($col)->{_inflate_info} = $attrs; $self->mk_group_accessors('inflated_column' => $col); return 1; @@ -68,7 +75,8 @@ sub inflate_column { sub _inflated_column { my ($self, $col, $value) = @_; return $value unless defined $value; # NULL is NULL is NULL - my $info = $self->column_info($col) || $self->throw_exception("No column info for $col"); + my $info = $self->column_info($col) + or $self->throw_exception("No column info for $col"); return $value unless exists $info->{_inflate_info}; my $inflate = $info->{_inflate_info}{inflate}; $self->throw_exception("No inflator for $col") unless defined $inflate; @@ -78,7 +86,8 @@ sub _inflated_column { sub _deflated_column { my ($self, $col, $value) = @_; return $value unless ref $value; # If it's not an object, don't touch it - my $info = $self->column_info($col) || $self->throw_exception("No column info for $col"); + my $info = $self->column_info($col) or + $self->throw_exception("No column info for $col"); return $value unless exists $info->{_inflate_info}; my $deflate = $info->{_inflate_info}{deflate}; $self->throw_exception("No deflator for $col") unless defined $deflate; @@ -87,8 +96,8 @@ sub _deflated_column { sub get_inflated_column { my ($self, $col) = @_; - $self->throw_exception("$col is not an inflated column") unless - exists $self->column_info($col)->{_inflate_info}; + $self->throw_exception("$col is not an inflated column") + unless exists $self->column_info($col)->{_inflate_info}; return $self->{_inflated_column}{$col} if exists $self->{_inflated_column}{$col}; @@ -130,7 +139,8 @@ sub update { foreach my $key (keys %$attrs) { if (ref $attrs->{$key} && exists $class->column_info($key)->{_inflate_info}) { - $attrs->{$key} = $class->_deflated_column($key, $attrs->{$key}); +# $attrs->{$key} = $class->_deflated_column($key, $attrs->{$key}); + $class->set_inflated_column ($key, delete $attrs->{$key}); } } return $class->next::method($attrs, @rest);