InflateColumn
SQL::Abstract
PK
+ Row
Table
Exception
AccessorGroup/);
This class overrides the insert method to get automatically
incremented primary keys.
+You don't want to be using this directly - instead load the appropriate
+one for your database, e.g. PK::Auto::SQLite
+
=head1 METHODS
=over 4
--- /dev/null
+package DBIx::Class::PK::Auto::MySQL;
+
+use strict;
+use warnings;
+
+use base qw/DBIx::Class/;
+
+__PACKAGE__->load_components(qw/PK::Auto/);
+
+sub last_insert_id {
+ return $_[0]->storage->dbh->{mysql_insertid};
+}
+
+1;
+
+=head1 NAME
+
+DBIx::Class::PK::Auto::MySQL - Automatic Primary Key class for MySQL
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+This class implements autoincrements for MySQL.
+
+=head1 AUTHORS
+
+Matt S. Trout <perl-stuff@trout.me.uk>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+
fallback => 1;
sub new {
- my ($it_class, $db_class, $cursor, $args, $cols, $attrs) = @_;
+ my ($it_class, $db_class, $attrs) = @_;
#use Data::Dumper; warn Dumper(@_);
$it_class = ref $it_class if ref $it_class;
$attrs = { %{ $attrs || {} } };
- unless ($cursor) {
- $attrs->{bind} = $args;
- $cursor = $db_class->storage->select($db_class->_table_name,$cols,
+ my $cols = [ $db_class->_select_columns ];
+ my $cursor = $db_class->storage->select($db_class->_table_name,$cols,
$attrs->{where},$attrs);
- }
my $new = {
class => $db_class,
cursor => $cursor,
cols => $cols,
- args => $args,
cond => $attrs->{where},
attrs => $attrs };
return bless ($new, $it_class);
$self->{class}->throw("Can't slice without where") unless $attrs->{where};
$attrs->{offset} = $min;
$attrs->{rows} = ($max ? ($max - $min + 1) : 1);
- my $slice = $self->new($self->{class}, undef, $self->{args},
- $self->{cols}, $attrs);
+ my $slice = $self->new($self->{class}, $attrs);
return (wantarray ? $slice->all : $slice);
}
sub count {
my ($self) = @_;
return $self->{attrs}{rows} if $self->{attrs}{rows};
- return $self->{class}->count($self->{cond}, { bind => $self->{args} });
+ # This is a hack, and will break on the last page of a paged set.
+ # Once we have limit support in Storage, kill it.
+
+ my $db_class = $self->{class};
+ my @cols = 'COUNT(*)';
+ my $cursor = $db_class->storage->select($db_class->_table_name, \@cols,
+ $self->{cond}, $self->{attrs});
+ return ($cursor->next)[0];
}
sub all {
--- /dev/null
+package DBIx::Class::Row;
+
+use strict;
+use warnings;
+
+=head1 NAME
+
+DBIx::Class::Row - Basic row methods
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+This class is responsible for defining and doing basic operations on rows
+derived from L<DBIx::Class::Table> objects.
+
+=head1 METHODS
+
+=over 4
+
+=item new
+
+ my $obj = My::Class->new($attrs);
+
+Creates a new row 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} = $value;
+}
+
+sub _row_to_object { # WARNING: Destructive to @$row
+ my ($class, $cols, $row) = @_;
+ my $new = $class->new;
+ $new->store_column($_, shift @$row) for @$cols;
+ $new->in_storage(1);
+ return $new;
+}
+
+=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;
+}
+
+=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} || {}};
+}
+
+1;
+
+=back
+
+=head1 AUTHORS
+
+Matt S. Trout <perl-stuff@trout.me.uk>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+
=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} };
=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
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
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
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 $new->insert;
-}
-
=item table
__PACKAGE__->table('tbl_name');
return defined($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;
projects / dbsrgits/DBIx-Class.git / commitdiff