From: Jess Robinson Date: Mon, 20 Mar 2006 21:03:58 +0000 (+0000) Subject: de-foo documentation ;) X-Git-Tag: v0.06000~54 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=c99393ffe05c5a7a197983f7a632c80d190c47be;p=dbsrgits%2FDBIx-Class.git de-foo documentation ;) --- diff --git a/lib/DBIx/Class/Relationship.pm b/lib/DBIx/Class/Relationship.pm index 22be1d3..68a223e 100644 --- a/lib/DBIx/Class/Relationship.pm +++ b/lib/DBIx/Class/Relationship.pm @@ -40,10 +40,10 @@ See L for a list of valid attributes. =head2 belongs_to - # in a Bar class (where Foo has many Bars) - __PACKAGE__->belongs_to(foo => Foo); - my $f_obj = $obj->foo; - $obj->foo($new_f_obj); + # in a Book class (where Author has many Books) + My::DBIC::Schema::Book->belongs_to(author => 'Author'); + my $author_obj = $obj->author; + $obj->author($new_author_obj); Creates a relationship where the calling class stores the foreign class's primary key in one (or more) of its columns. If $cond is a column name @@ -56,13 +56,13 @@ of C. =head2 has_many - # in a Foo class (where Foo has many Bars) - __PACKAGE__->has_many(bar => Bar, 'foo'); - my $f_resultset = $obj->foo; - my $f_resultset = $obj->foo({ name => { LIKE => '%macaroni%' }, { prefetch => [qw/bar/] }); - my @f_obj = $obj->foo; + # in an Author class (where Author has many Books) + My::DBIC::Schema::Author->has_many(books => 'Book', 'author'); + my $booklist = $obj->books; + my $booklist = $obj->books({ name => { LIKE => '%macaroni%' }, { prefetch => [qw/book/] }); + my @book_objs = $obj->books; - $obj->add_to_foo(\%col_data); + $obj->add_to_books(\%col_data); Creates a one-to-many relationship, where the corresponding elements of the foreign class store the calling class's primary key in one (or more) of its @@ -75,32 +75,33 @@ cascade or restrict will take precedence. =head2 might_have - __PACKAGE__->might_have(baz => Baz); - my $f_obj = $obj->baz; # to get the baz object + My::DBIC::Schema::Author->might_have(psuedonym => 'Psuedonyms'); + my $pname = $obj->psuedonym; # to get the Psuedonym object -Creates an optional one-to-one relationship with a class, where the foreign class -stores our primary key in one of its columns. Defaults to the primary key of the -foreign class unless $cond specifies a column or join condition. +Creates an optional one-to-one relationship with a class, where the foreign +class stores our primary key in one of its columns. Defaults to the primary +key of the foreign class unless $cond specifies a column or join condition. -If you update or delete an object in a class with a C relationship, -the related object will be updated or deleted as well. Any database-level update -or delete constraints will override this behavior. +If you update or delete an object in a class with a C +relationship, the related object will be updated or deleted as well. +Any database-level update or delete constraints will override this behaviour. =head2 has_one - __PACKAGE__->has_one(gorch => Gorch); - my $f_obj = $obj->gorch; + My::DBIC::Schema::Book->has_one(isbn => ISBN); + my $isbn_obj = $obj->isbn; -Creates a one-to-one relationship with another class. This is just like C, -except the implication is that the other object is always present. The only different -between C and C is that C uses an (ordinary) inner join, -whereas C uses a left join. +Creates a one-to-one relationship with another class. This is just like +C, except the implication is that the other object is always +present. The only difference between C and C is that +C uses an (ordinary) inner join, whereas C uses a +left join. =head2 many_to_many - __PACKAGE__->many_to_many( 'accessorname' => 'a_to_b', 'table_b' ); - my @f_objs = $obj_a->accessorname; + My::DBIC::Schema::Actor->many_to_many( roles => 'actor_roles', 'Roles' ); + my @role_objs = $obj_a->roles; Creates an accessor bridging two relationships; not strictly a relationship in its own right, although the accessor will return a resultset or collection