Class Method

Returns the default port for the engine. This is a class method value defined by each recognized URI engine.

Constructors

  my $uri = URI::db->new($string);
  my $uri = URI::db->new($string, $base);

Always returns a URI::db object. $base may be another URI object or string. Unlike in URI's "new()", the scheme will always be applied to the URI if it does not already have one.

Accessors

  my $scheme = $uri->scheme;
  $uri->scheme( $new_scheme );

Gets or sets the scheme part of the URI. For "db:" URIs, the scheme cannot be changed to any value other than "db" (or any case variation thereof). For non-"db:" URIs, the scheme may be changed to any value, though the URI object may no longer be a database URI.

"engine"

  my $engine = $uri->engine;
  $uri->engine( $new_engine );

Gets or sets the engine part of the URI, which may be any valid URI scheme value, though recognized engines provide additional context, such as the "default_port()" and a driver-specific "dbi_dsn()".

If called with an argument, it updates the engine, possibly changing the class of the URI, and returns the old engine value.

"canonical_engine"

  my $canonical_engine = $uri->canonical_engine;

Returns the canonical engine. A number of engine names are aliases for other engines. This method will return the non-aliased engine name. For example, the "postgres" engine will return the canonical engine "pg", the "sqlite3" returns the canonical engine "sqlite", and "maria" returns the canonical engine "mysql".

"dbname"

  my $dbname = $uri->dbname;
  $uri->dbname( $new_dbname );

Gets or sets the name of the database. If called with an argument, the path will also be updated.

"host"

  my $host = $uri->host;
  $uri->host( $new_host );

Gets or sets the host to connect to.

"port"

  my $port = $uri->port;
  $uri->port( $new_port );

Gets or sets the port to connect to.

"user"

  my $user = $uri->user;
  $uri->user( $new_user );

Gets or sets the user name.

"password"

  my $password = $uri->password;
  $uri->password( $new_password );

Gets or sets the password.

"uri"

Returns the underlying engine URI. For URIs starting with "db:", this will be the URI that follows. For database URIs without "db:", the URI itself will be returned.

Instance Methods

  my $has_recognized_engine = $uri->has_recognized_engine;

Returns true if the engine is recognized by URI::db, and false if it is not. A recognized engine is simply one that inherits from "URI::_db".

"query_params"

  my @params = $uri->query_params;

Returns a list of key/value pairs representing all query parameters. Parameters specified more than once will be returned more than once, so avoid assigning to a hash. If you want a hash, use URI::QueryParam's "query_from_hash()", where duplicate keys lead to an array of values for that key:

  use URI::QueryParam;
  my $params = $uri->query_form_hash;

"dbi_driver"

  if ( my $driver = $uri->dbi_driver ) {
      eval "require DBD::$driver" or die;
  }

Returns a string representing the DBI driver name for the database engine, if one is known. Returns "undef" if no driver is known.

"dbi_dsn"

  DBI->connect( $uri->dbi_dsn, $uri->user, $uri->pass );

Returns a DBI DSN appropriate for use in a call to "DBI->connect". The attributes will usually be pulled from the URI host name, port, and database name, as well as the query parameters. If no driver is known for the URI, the "dbi:$driver:" part of the DSN will be omitted, in which case you can use the $DBI_DRIVER environment variable to identify an appropriate driver. Otherwise, each database URI does its best to create a valid DBI DSN. Some examples:

  | URI                                  | DSN                                              |
  |--------------------------------------+--------------------------------------------------|
  | db:pg:try                            | dbi:Pg:dbname=try                                |
  | db:mysql://localhost:33/foo          | dbi:mysql:host=localhost;port=33;database=foo    |
  | db:db2://localhost:33/foo            | dbi:DB2:HOSTNAME=localhost;PORT=33;DATABASE=foo  |
  | db:vertica:dbadmin                   | dbi:ODBC:DSN=dbadmin                             |
  | db:mssql://foo.com/pubs?Driver=MSSQL | dbi:ODBC:Host=foo.com;Database=pubs;Driver=MSSQL |

"dbi_params"

  my @params = $uri->dbi_params;

Returns a list of key/value pairs used as parameters in the DBI DSN, including query parameters. Parameters specified more than once will be returned more than once, so avoid assigning to a hash.

"abs"

  my $abs = $uri->abs( $base_uri );

For "db:" URIs, simply returns the URI::db object itself. For Non-"db:" URIs, the behavior is the same as for URI including respect for $URI::ABS_ALLOW_RELATIVE_SCHEME.

"rel"

  my $rel = $uri->rel( $base_uri );

For "db:" URIs, simply returns the URI::db object itself. For Non-"db:" URIs, the behavior is the same as for URI.

"canonical"

  my $canonical_uri = $uri->canonical;

Returns a normalized version of the URI. This behavior is the same for other URIs, except that the engine will be replaced with the value of "canonical_engine" if it is not already the canonical engine.