X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FTable.pm;h=42631ded9ac97b3ceac7719394d56b4698d6ae4d;hb=fab31d8c753ec27ee5b5a16d1568cc337a245858;hp=aa85c7c4edc7d6105bf26bbcdf2344ca9d9ea442;hpb=944f30bf240a360b7963247945916c6388321b3d;p=dbsrgits%2FDBIx-Class-Historic.git diff --git a/lib/DBIx/Class/Table.pm b/lib/DBIx/Class/Table.pm index aa85c7c..42631de 100644 --- a/lib/DBIx/Class/Table.pm +++ b/lib/DBIx/Class/Table.pm @@ -4,6 +4,7 @@ use strict; use warnings; use DBIx::Class::ResultSet; +use Data::Page; use base qw/Class::Data::Inheritable/; @@ -32,196 +33,8 @@ L objects. =over 4 -=item new - - my $obj = My::Class->new($attrs); - -Creates a new object from column => value mappings passed as a hash ref - -=cut - -sub new { - my ($class, $attrs) = @_; - $class = ref $class if ref $class; - my $new = bless({ _column_data => { } }, $class); - if ($attrs) { - $new->throw("attrs must be a hashref" ) unless ref($attrs) eq 'HASH'; - while (my ($k, $v) = each %{$attrs}) { - $new->store_column($k => $v); - } - } - return $new; -} - -=item insert - - $obj->insert; - -Inserts an object into the database if it isn't already in there. Returns -the object itself. - -=cut - -sub insert { - my ($self) = @_; - return $self if $self->in_storage; - #use Data::Dumper; warn Dumper($self); - my %in; - $in{$_} = $self->get_column($_) - for grep { defined $self->get_column($_) } $self->columns; - my %out = %{ $self->storage->insert($self->_table_name, \%in) }; - $self->store_column($_, $out{$_}) - for grep { $self->get_column($_) ne $out{$_} } keys %out; - $self->in_storage(1); - $self->{_dirty_columns} = {}; - return $self; -} - -=item in_storage - - $obj->in_storage; # Get value - $obj->in_storage(1); # Set value - -Indicated whether the object exists as a row in the database or not - -=cut - -sub in_storage { - my ($self, $val) = @_; - $self->{_in_storage} = $val if @_ > 1; - return $self->{_in_storage}; -} - -=item create - - my $new = My::Class->create($attrs); - -A shortcut for My::Class->new($attrs)->insert; - -=cut - -sub create { - my ($class, $attrs) = @_; - $class->throw( "create needs a hashref" ) unless ref $attrs eq 'HASH'; - return $class->new($attrs)->insert; -} - -=item update - - $obj->update; - -Must be run on an object that is already in the database; issues an SQL -UPDATE query to commit any changes to the object to the db if required. - =cut -sub update { - my ($self, $upd) = @_; - $self->throw( "Not in database" ) unless $self->in_storage; - my %to_update = %{$upd || {}}; - $to_update{$_} = $self->get_column($_) for $self->is_changed; - return -1 unless keys %to_update; - my $rows = $self->storage->update($self->_table_name, \%to_update, - $self->ident_condition); - if ($rows == 0) { - $self->throw( "Can't update ${self}: row not found" ); - } elsif ($rows > 1) { - $self->throw("Can't update ${self}: updated more than one row"); - } - $self->{_dirty_columns} = {}; - return $self; -} - -sub ident_condition { - my ($self) = @_; - my %cond; - $cond{$_} = $self->get_column($_) for keys %{$self->_primaries}; - return \%cond; -} - -=item delete - - $obj->delete - -Deletes the object from the database. The object is still perfectly usable -accessor-wise etc. but ->in_storage will now return 0 and the object must -be re ->insert'ed before it can be ->update'ed - -=cut - -sub delete { - my $self = shift; - if (ref $self) { - $self->throw( "Not in database" ) unless $self->in_storage; - #warn $self->_ident_cond.' '.join(', ', $self->_ident_values); - $self->storage->delete($self->_table_name, $self->ident_condition); - $self->in_storage(undef); - #$self->store_column($_ => undef) for $self->primary_columns; - # Should probably also arrange to trash PK if auto - # but if we do, post-delete cascade triggers fail :/ - } else { - my $attrs = { }; - if (@_ > 1 && ref $_[$#_] eq 'HASH') { - $attrs = { %{ pop(@_) } }; - } - my $query = (ref $_[0] eq 'HASH' ? $_[0] : {@_}); - $self->storage->delete($self->_table_name, $query); - } - return $self; -} - -=item get_column - - my $val = $obj->get_column($col); - -Fetches a column value - -=cut - -sub get_column { - my ($self, $column) = @_; - $self->throw( "Can't fetch data as class method" ) unless ref $self; - $self->throw( "No such column '${column}'" ) unless $self->_columns->{$column}; - return $self->{_column_data}{$column} - if exists $self->{_column_data}{$column}; - return undef; -} - -=item set_column - - $obj->set_column($col => $val); - -Sets a column value; if the new value is different to the old the column -is marked as dirty for when you next call $obj->update - -=cut - -sub set_column { - my $self = shift; - my ($column) = @_; - my $old = $self->get_column($column); - my $ret = $self->store_column(@_); - $self->{_dirty_columns}{$column} = 1 unless defined $old && $old eq $ret; - return $ret; -} - -=item store_column - - $obj->store_column($col => $val); - -Sets a column value without marking it as dirty - -=cut - -sub store_column { - my ($self, $column, $value) = @_; - $self->throw( "No such column '${column}'" ) - unless $self->_columns->{$column}; - $self->throw( "set_column called for ${column} without value" ) - if @_ < 3; - return $self->{_column_data}{$column} = $value; -} - sub _register_columns { my ($class, @cols) = @_; my $names = { %{$class->_columns} }; @@ -270,11 +83,8 @@ sub search_literal { =cut sub count_literal { - my ($class, $cond, @vals) = @_; - $cond =~ s/^\s*WHERE//i; - my $attrs = (ref $vals[$#vals] eq 'HASH' ? pop(@vals) : {}); - $attrs->{bind} = [ @vals ]; - return $class->count($cond, $attrs); + my $class = shift; + return $class->search_literal(@_)->count; } =item count @@ -285,31 +95,7 @@ sub count_literal { sub count { my $class = shift; - my $attrs = { }; - if (@_ > 1 && ref $_[$#_] eq 'HASH') { - $attrs = { %{ pop(@_) } }; - } - my $query = (@_ == 1 || ref $_[0] eq "HASH" ? shift: {@_}); - my @cols = 'COUNT(*)'; - my $cursor = $class->storage->select($class->_table_name, \@cols, - $query, $attrs); - return ($cursor->next)[0]; -} - -sub cursor_to_resultset { - my ($class, $sth, $args, $cols, $attrs) = @_; - my $rs_class = $class->_resultset_class; - eval "use $rs_class;"; - my $rs = $rs_class->new($class, $sth, $args, $cols, $attrs); - return (wantarray ? $rs->all : $rs); -} - -sub _row_to_object { # WARNING: Destructive to @$row - my ($class, $cols, $row) = @_; - my $new = $class->new; - $new->store_column($_, shift @$row) for @$cols; - $new->in_storage(1); - return $new; + return $class->search(@_)->count; } =item search @@ -326,10 +112,19 @@ sub search { if (@_ > 1 && ref $_[$#_] eq 'HASH') { $attrs = { %{ pop(@_) } }; } - my $query = (@_ == 1 || ref $_[0] eq "HASH" ? shift: {@_}); - my @cols = $class->_select_columns; - return $class->cursor_to_resultset(undef, $attrs->{bind}, \@cols, - { where => $query, %$attrs }); + $attrs->{where} = (@_ == 1 || ref $_[0] eq "HASH" ? shift: {@_}); + + my $rs = $class->resultset($attrs); + + return (wantarray ? $rs->all : $rs); +} + +sub resultset { + my $class = shift; + + my $rs_class = $class->_resultset_class; + eval "use $rs_class;"; + my $rs = $rs_class->new($class, @_); } =item search_like @@ -353,31 +148,6 @@ sub _select_columns { return keys %{$_[0]->_columns}; } -=item copy - - my $copy = $orig->copy({ change => $to, ... }); - -=cut - -sub copy { - my ($self, $changes) = @_; - my $new = bless({ _column_data => { %{$self->{_column_data}}} }, ref $self); - $new->set_column($_ => $changes->{$_}) for keys %$changes; - return $new->insert; -} - -#sub _cond_resolve { -# my ($self, $query, $attrs) = @_; -# return '1 = 1' unless keys %$query; -# my $op = $attrs->{'cmp'} || '='; -# my $cond = join(' AND ', -# map { (defined $query->{$_} -# ? "$_ $op ?" -# : (do { delete $query->{$_}; "$_ IS NULL"; })); -# } keys %$query); -# return ($cond, values %$query); -#} - =item table __PACKAGE__->table('tbl_name'); @@ -400,33 +170,10 @@ creates one and returns that instead sub find_or_create { my $class = shift; my $hash = ref $_[0] eq "HASH" ? shift: {@_}; - my ($exists) = $class->search($hash); + my $exists = $class->find($hash); return defined($exists) ? $exists : $class->create($hash); } -=item insert_or_update - - $obj->insert_or_update - -Updates the object if it's already in the db, else inserts it - -=cut - -sub insert_or_update { - my $self = shift; - return ($self->in_storage ? $self->update : $self->insert); -} - -=item is_changed - - my @changed_col_names = $obj->is_changed - -=cut - -sub is_changed { - return keys %{shift->{_dirty_columns} || {}}; -} - sub columns { return keys %{shift->_columns}; } 1; @@ -435,7 +182,7 @@ sub columns { return keys %{shift->_columns}; } =head1 AUTHORS -Matt S. Trout +Matt S. Trout =head1 LICENSE