sub select {
my ($self, $table, $fields, $where, $order, @rest) = @_;
- $table = $self->_quote($table) unless ref($table);
+ if (ref $table eq 'SCALAR') {
+ $table = $$table;
+ }
+ elsif (not ref $table) {
+ $table = $self->_quote($table);
+ }
local $self->{rownum_hack_count} = 1
if (defined $rest[0] && $self->{limit_dialect} eq 'RowNum');
@rest = (-1) unless defined $rest[0];
=head1 SYNOPSIS
+ my $schema = MySchema->connect('dbi:SQLite:my.db');
+
+ $schema->storage->debug(1);
+ $schema->dbh_do("DROP TABLE authors");
+
+ $schema->resultset('Book')->search({
+ written_on => $schema->storage->datetime_parser(DateTime->now)
+ });
+
=head1 DESCRIPTION
This class represents the connection to an RDBMS via L<DBI>. See
=item *
-The same 4-element argument set one would normally pass to L<DBI/connect>,
-optionally followed by L<extra attributes|/DBIx::Class specific connection attributes>
+The same 4-element argument set one would normally pass to
+L<DBI/connect>, optionally followed by
+L<extra attributes|/DBIx::Class specific connection attributes>
recognized by DBIx::Class:
- $connect_info_args = [ $dsn, $user, $pass, \%dbi_attributes, \%extra_attributes ];
+ $connect_info_args = [ $dsn, $user, $password, \%dbi_attributes?, \%extra_attributes? ];
=item *
-A lone code reference which returns a connected L<DBI database handle|DBI/connect>
-optinally followed by L<extra attributes|/DBIx::Class specific connection attributes>
-recognized by DBIx::Class:
+A single code reference which returns a connected
+L<DBI database handle|DBI/connect> optionally followed by
+L<extra attributes|/DBIx::Class specific connection attributes> recognized
+by DBIx::Class:
- $connect_info_args = [ sub { DBI->connect (...) }, \%extra_attributes ];
+ $connect_info_args = [ sub { DBI->connect (...) }, \%extra_attributes? ];
=item *
-A lone hashref with all the attributes and the dsn/user/pass mixed together:
+A single hashref with all the attributes and the dsn/user/password
+mixed together:
$connect_info_args = [{
dsn => $dsn,
user => $user,
- pass => $pass,
+ password => $pass,
%dbi_attributes,
%extra_attributes,
}];
This is particularly useful for L<Catalyst> based applications, allowing the
-following config:
+following config (L<Config::General> style):
<Model::DB>
schema_class App::DB
=back
-Please note that the L<DBI> docs
-recommend that you always explicitly set C<AutoCommit> to either
-C<0> or C<1>. L<DBIx::Class> further recommends that it be set
-to C<1>, and that you perform transactions via our L</txn_do>
-method. L<DBIx::Class> will set it to C<1> if you do not do explicitly
-set it to zero. This is the default for most DBDs. See
-L</DBIx::Class and AutoCommit> for details.
+Please note that the L<DBI> docs recommend that you always explicitly
+set C<AutoCommit> to either I<0> or I<1>. L<DBIx::Class> further
+recommends that it be set to I<1>, and that you perform transactions
+via our L<DBIx::Class::Schema/txn_do> method. L<DBIx::Class> will set it
+to I<1> if you do not do explicitly set it to zero. This is the default
+for most DBDs. See L</DBIx::Class and AutoCommit> for details.
=head3 DBIx::Class specific connection attributes
whether any options are specified in the new C<connect_info>.
-=over 4
+=over
=item on_connect_do
=item on_disconnect_do
-Takes arguments in the same form as L<on_connect_do> and executes them
+Takes arguments in the same form as L</on_connect_do> and executes them
immediately before disconnecting from the database.
-Note, this only runs if you explicitly call L<disconnect> on the
+Note, this only runs if you explicitly call L</disconnect> on the
storage object.
=item disable_sth_caching
Sets the limit dialect. This is useful for JDBC-bridge among others
where the remote SQL-dialect cannot be determined by the name of the
-driver alone.
+driver alone. See also L<SQL::Abstract::Limit>.
=item quote_char
Specifies what characters to use to quote table and column names. If
-you use this you will want to specify L<name_sep> as well.
+you use this you will want to specify L</name_sep> as well.
-quote_char expects either a single character, in which case is it is placed
-on either side of the table/column, or an arrayref of length 2 in which case the
-table/column name is placed between the elements.
+C<quote_char> expects either a single character, in which case is it
+is placed on either side of the table/column name, or an arrayref of length
+2 in which case the table/column name is placed between the elements.
-For example under MySQL you'd use C<quote_char =E<gt> '`'>, and user SQL Server you'd
-use C<quote_char =E<gt> [qw/[ ]/]>.
+For example under MySQL you should use C<< quote_char => '`' >>, and for
+SQL Server you should use C<< quote_char => [qw/[ ]/] >>.
=item name_sep
-This only needs to be used in conjunction with L<quote_char>, and is used to
+This only needs to be used in conjunction with C<quote_char>, and is used to
specify the charecter that seperates elements (schemas, tables, columns) from
each other. In most cases this is simply a C<.>.
+The consequences of not supplying this value is that L<SQL::Abstract>
+will assume DBIx::Class' uses of aliases to be complete column
+names. The output will look like I<"me.name"> when it should actually
+be I<"me"."name">.
+
=item unsafe
This Storage driver normally installs its own C<HandleError>, sets
transactions, making it possible to recover from failure in the inner
transaction without having to abort all outer transactions.
+=item cursor_class
+
+Use this argument to supply a cursor class other than the default
+L<DBIx::Class::Storage::DBI::Cursor>.
+
=back
-Some real-life examples of arguments to L</connect_info> and L<DBIx::Class::Schema/connect>
+Some real-life examples of arguments to L</connect_info> and
+L<DBIx::Class::Schema/connect>
# Simple SQLite connection
->connect_info([ 'dbi:SQLite:./foo.db' ]);
);
# Same, but with hashref as argument
- # See C<parse_connect_info> for explanation
+ # See parse_connect_info for explanation
->connect_info(
[{
dsn => 'dbi:Pg:dbname=foo',
unshift @args, delete $attrs{$_};
}
}
- else { # otherwise assume dsn/user/pass + \%attrs + \%extra_attrs
+ else { # otherwise assume dsn/user/password + \%attrs + \%extra_attrs
%attrs = (
% { $args[3] || {} },
% { $args[4] || {} },
=head2 on_connect_do
-This method is deprecated in favor of setting via L</connect_info>.
+This method is deprecated in favour of setting via L</connect_info>.
=head2 dbh_do
my $self = shift;
my ($rv, $sth, @bind) = $self->_select(@_);
my @row = $sth->fetchrow_array;
- if(@row && $sth->fetchrow_array) {
+ my @nextrow = $sth->fetchrow_array if @row;
+ if(@row && @nextrow) {
carp "Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single";
}
# Need to call finish() to work round broken DBDs
=head2 bind_attribute_by_data_type
-Given a datatype from column info, returns a database specific bind attribute for
-$dbh->bind_param($val,$attribute) or nothing if we will let the database planner
-just handle it.
+Given a datatype from column info, returns a database specific bind
+attribute for C<< $dbh->bind_param($val,$attribute) >> or nothing if we will
+let the database planner just handle it.
Generally only needed for special case column types, like bytea in postgres.
}
$databases ||= ['MySQL', 'SQLite', 'PostgreSQL'];
$databases = [ $databases ] if(ref($databases) ne 'ARRAY');
- $version ||= $schema->VERSION || '1.x';
+
+ my $schema_version = $schema->schema_version || '1.x';
+ $version ||= $schema_version;
+
$sqltargs = {
add_drop_table => 1,
ignore_constraint_names => 1,
my $file;
my $filename = $schema->ddl_filename($db, $version, $dir);
- if (-e $filename && (!$version || ($version == $schema->schema_version()))) {
+ if (-e $filename && ($version eq $schema_version )) {
# if we are dumping the current version, overwrite the DDL
warn "Overwriting existing DDL file - $filename";
unlink($filename);
# Need to be connected to get the correct sqlt_type
$self->ensure_connected() unless $type;
$type ||= $self->sqlt_type;
- $version ||= $schema->VERSION || '1.x';
+ $version ||= $schema->schema_version || '1.x';
$dir ||= './';
my $filename = $schema->ddl_filename($type, $dir, $version);
if(-f $filename)
=item limit_dialect
See L</connect_info> for details.
-For setting, this method is deprecated in favor of L</connect_info>.
=item quote_char
See L</connect_info> for details.
-For setting, this method is deprecated in favor of L</connect_info>.
=item name_sep
See L</connect_info> for details.
-For setting, this method is deprecated in favor of L</connect_info>.
=back
projects / dbsrgits/DBIx-Class.git / blobdiff