L<DBIx::Class::ResultSourceProxy::Table> component, which defines
the L<table|DBIx::Class::ResultSourceProxy::Table/table> method.
When called, C<table> creates and stores an instance of
-L<DBIx::Class::ResultSoure::Table>. Luckily, to use tables as result
+L<DBIx::Class::ResultSource::Table>. Luckily, to use tables as result
sources, you don't need to remember any of this.
Result sources representing select queries, or views, can also be
=head2 Finding result source objects
As mentioned above, a result source instance is created and stored for
-you when you define a L<result class|DBIx::Class::Manual::Glossary/Result class>.
+you when you define a
+L<Result Class|DBIx::Class::Manual::Glossary/Result Class>.
You can retrieve the result source at runtime in the following ways:
=head1 METHODS
-=pod
+=head2 new
+
+ $class->new();
+
+ $class->new({attribute_name => value});
+
+Creates a new ResultSource object. Not normally called directly by end users.
=cut
Defines one or more columns as primary key for this source. Must be
called after L</add_columns>.
-Additionally, defines a L<unique constraint|add_unique_constraint>
+Additionally, defines a L<unique constraint|/add_unique_constraint>
named C<primary>.
Note: you normally do want to define a primary key on your sources
sub from { die 'Virtual method!' }
+=head2 source_info
+
+Stores a hashref of per-source metadata. No specific key names
+have yet been standardized, the examples below are purely hypothetical
+and don't actually accomplish anything on their own:
+
+ __PACKAGE__->source_info({
+ "_tablespace" => 'fast_disk_array_3',
+ "_engine" => 'InnoDB',
+ });
+
=head2 schema
=over 4
my $cols;
for my $col ($self->unique_constraint_columns($args->{constraint_name}) ) {
- if( ! exists $vals->{$col} ) {
- $cols->{missing}{$col} = 1;
+ if( ! exists $vals->{$col} or ( $vals->{$col}||'' ) eq UNRESOLVABLE_CONDITION ) {
+ $cols->{missing}{$col} = undef;
}
elsif( ! defined $vals->{$col} ) {
- $cols->{$args->{carp_on_nulls} ? 'undefined' : 'missing'}{$col} = 1;
+ $cols->{$args->{carp_on_nulls} ? 'undefined' : 'missing'}{$col} = undef;
}
else {
- $cols->{present}{$col} = 1;
+ # we need to inject back the '=' as _extract_fixed_condition_columns
+ # will strip it from literals and values alike, resulting in an invalid
+ # condition in the end
+ $cols->{present}{$col} = { '=' => $vals->{$col} };
}
$cols->{fc}{$col} = 1 if (
- ! ( $cols->{missing} || {})->{$col}
+ ( ! $cols->{missing} or ! exists $cols->{missing}{$col} )
and
- $args->{columns_info}{$col}{_filter_info}
+ keys %{ $args->{columns_info}{$col}{_filter_info} || {} }
);
}
));
}
- return { map
- { $_ => $vals->{$_} }
- ( keys %{$cols->{present}}, keys %{$cols->{undefined}} )
- };
+ return { map { %{ $cols->{$_}||{} } } qw(present undefined) };
}
# Returns the {from} structure used to express JOIN conditions
$self->throw_exception("Arguments 'self_alias' and 'foreign_alias' may not be identical")
if $args->{self_alias} eq $args->{foreign_alias};
+# TEMP
my $exception_rel_id = "relationship '$args->{rel_name}' on source '@{[ $self->source_name ]}'";
my $rel_info = $self->relationship_info($args->{rel_name})
# TEMP
# or $self->throw_exception( "No such $exception_rel_id" );
- or carp_unique("Requesting resolution on non-existent $exception_rel_id: fix your code *soon*, as it will break with the next major version");
+ or carp_unique("Requesting resolution on non-existent relationship '$args->{rel_name}' on source '@{[ $self->source_name ]}': fix your code *soon*, as it will break with the next major version");
+
+# TEMP
+ $exception_rel_id = "relationship '$rel_info->{_original_name}' on source '@{[ $self->source_name ]}'"
+ if $rel_info and exists $rel_info->{_original_name};
$self->throw_exception("No practical way to resolve $exception_rel_id between two data structures")
if exists $args->{self_result_object} and exists $args->{foreign_values};
)
;
- my $rel_rsrc = $self->related_source($args->{rel_name});
+#TEMP
+ my $rel_rsrc;# = $self->related_source($args->{rel_name});
if (exists $args->{foreign_values}) {
+# TEMP
+ $rel_rsrc ||= $self->related_source($args->{rel_name});
+
if (defined blessed $args->{foreign_values}) {
$self->throw_exception( "Objects supplied as 'foreign_values' ($args->{foreign_values}) must inherit from DBIx::Class::Row" )
$args->{foreign_values} = { $args->{foreign_values}->get_columns };
}
elsif (! defined $args->{foreign_values} or ref $args->{foreign_values} eq 'HASH') {
+ my $ri = { map { $_ => 1 } $rel_rsrc->relationships };
my $ci = $rel_rsrc->columns_info;
- ! exists $ci->{$_} and $self->throw_exception(
+ ! exists $ci->{$_} and ! exists $ri->{$_} and $self->throw_exception(
"Key '$_' supplied as 'foreign_values' is not a column on related source '@{[ $rel_rsrc->source_name ]}'"
) for keys %{ $args->{foreign_values} ||= {} };
}
"The join-free condition returned for $exception_rel_id must be a hash reference"
) unless ref $jfc eq 'HASH';
+# TEMP
+ $rel_rsrc ||= $self->related_source($args->{rel_name});
+
my ($joinfree_alias, $joinfree_source);
if (defined $args->{self_result_object}) {
$joinfree_alias = $args->{foreign_alias};
$joinfree_source->columns
};
- $fq_col_list->{$_} or $self->throw_exception (
+ exists $fq_col_list->{$_} or $self->throw_exception (
"The join-free condition returned for $exception_rel_id may only "
- . 'contain keys that are fully qualified column names of the corresponding source'
+ . 'contain keys that are fully qualified column names of the corresponding source '
+ . "(it returned '$_')"
) for keys %$jfc;
+ (
+ length ref $_
+ and
+ defined blessed($_)
+ and
+ $_->isa('DBIx::Class::Row')
+ and
+ $self->throw_exception (
+ "The join-free condition returned for $exception_rel_id may not "
+ . 'contain result objects as values - perhaps instead of invoking '
+ . '->$something you meant to return ->get_column($something)'
+ )
+ ) for values %$jfc;
+
}
}
elsif (ref $args->{condition} eq 'HASH') {
for my $lhs (keys %$col_eqs) {
next if $col_eqs->{$lhs} eq UNRESOLVABLE_CONDITION;
- my ($rhs) = @{ is_literal_value( $ret->{condition}{$lhs} ) || next };
+
+# TEMP
+ $rel_rsrc ||= $self->related_source($args->{rel_name});
# there is no way to know who is right and who is left in a cref
- # therefore a full blown resolution call
+ # therefore a full blown resolution call, and figure out the
+ # direction a bit further below
$colinfos ||= $storage->_resolve_column_info([
{ -alias => $args->{self_alias}, -rsrc => $self },
{ -alias => $args->{foreign_alias}, -rsrc => $rel_rsrc },
]);
- my ($l_col, $r_col) = map { $_ =~ / ([^\.]+) $ /x } ($lhs, $rhs);
+ next unless $colinfos->{$lhs}; # someone is engaging in witchcraft
- if (
- $colinfos->{$l_col}
- and
- $colinfos->{$r_col}
+ if ( my $rhs_ref = is_literal_value( $col_eqs->{$lhs} ) ) {
+
+ if (
+ $colinfos->{$rhs_ref->[0]}
+ and
+ $colinfos->{$lhs}{-source_alias} ne $colinfos->{$rhs_ref->[0]}{-source_alias}
+ ) {
+ ( $colinfos->{$lhs}{-source_alias} eq $args->{self_alias} )
+ ? ( $ret->{identity_map}{$colinfos->{$lhs}{-colname}} = $colinfos->{$rhs_ref->[0]}{-colname} )
+ : ( $ret->{identity_map}{$colinfos->{$rhs_ref->[0]}{-colname}} = $colinfos->{$lhs}{-colname} )
+ ;
+ }
+ }
+ elsif (
+ $col_eqs->{$lhs} =~ /^ ( \Q$args->{self_alias}\E \. .+ ) /x
and
- $colinfos->{$l_col}{-source_alias} ne $colinfos->{$r_col}{-source_alias}
+ ($colinfos->{$1}||{})->{-result_source} == $rel_rsrc
) {
- ( $colinfos->{$l_col}{-source_alias} eq $args->{self_alias} )
- ? ( $ret->{identity_map}{$l_col} = $r_col )
- : ( $ret->{identity_map}{$r_col} = $l_col )
+ my ($lcol, $rcol) = map
+ { $colinfos->{$_}{-colname} }
+ ( $lhs, $1 )
;
+ carp_unique(
+ "The $exception_rel_id specifies equality of column '$lcol' and the "
+ . "*VALUE* '$rcol' (you did not use the { -ident => ... } operator)"
+ );
}
}
}
- $ret
+ # FIXME - temporary, to fool the idiotic check in SQLMaker::_join_condition
+ $ret->{condition} = { -and => [ $ret->{condition} ] }
+ unless $ret->{condition} eq UNRESOLVABLE_CONDITION;
+
+ $ret;
}
=head2 related_source
my $global_phase_destroy;
sub DESTROY {
+ ### NO detected_reinvoked_destructor check
+ ### This code very much relies on being called multuple times
+
return if $global_phase_destroy ||= in_global_destruction;
######
;
}
-=head2 source_info
-
-Stores a hashref of per-source metadata. No specific key names
-have yet been standardized, the examples below are purely hypothetical
-and don't actually accomplish anything on their own:
-
- __PACKAGE__->source_info({
- "_tablespace" => 'fast_disk_array_3',
- "_engine" => 'InnoDB',
- });
-
-=head2 new
-
- $class->new();
-
- $class->new({attribute_name => value});
-
-Creates a new ResultSource object. Not normally called directly by end users.
-
=head2 column_info_from_storage
=over
metadata from storage as necessary. This is *deprecated*, and
should not be used. It will be removed before 1.0.
+=head1 FURTHER QUESTIONS?
-=head1 AUTHOR AND CONTRIBUTORS
-
-See L<AUTHOR|DBIx::Class/AUTHOR> and L<CONTRIBUTORS|DBIx::Class/CONTRIBUTORS> in DBIx::Class
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
-=head1 LICENSE
+=head1 COPYRIGHT AND LICENSE
-You may distribute this code under the same terms as Perl itself.
+This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
+by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
+redistribute it and/or modify it under the same terms as the
+L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.
=cut
projects / dbsrgits/DBIx-Class.git / blobdiff