alzabo::runtime::inserthandle(3pm) [debian man page]

Alzabo::Runtime::InsertHandle(3pm)			User Contributed Perl Documentation			Alzabo::Runtime::InsertHandle(3pm)

NAME

       Alzabo::Runtime::InsertHandle - A handle representing an insert

SYNOPSIS

	my $handle =
	    $table->insert_handle
		( columns => [ $table->columns( 'name', 'job' ) ] );

	my $faye_row =
	    $handle->insert( values =>
			     { name => 'Faye',
			       job => 'HK Pop Chanteuse' } );

	my $guesch_row =
	    $handle->insert( values =>
			     { name => 'Guesch',
			       job => 'French Chanteuse and Dancer' } );

DESCRIPTION

       This object is analogous to a DBI statement handle, and can be used to insert multiple rows into a table more efficiently than repeatedly
       calling "Alzabo::Runtime::Table->insert()".

METHODS

       Objects of this class provide one public method:

       insert

       This method is used to insert a new row into a table.

       It accepts the following parameters:

       * values
	   This should be a hash reference containing the values to be inserted into the table.

	   If no value is given for a primary key column and the column is "sequenced" then the primary key will be auto-generated.

	   If values are not provided for other columns which were given when "Alzabo::Runtime::Table->insert_handle" was called, this method
	   first checks to see if a value was provided for the column when "Alzabo::Runtime::Table->insert_handle" was called.	If none was pro-
	   vided, then the column's default value is used.

	   If column values were passed to "Alzabo::Runtime::Table->insert_handle", then these can be overridden by values passed to this method.

	   It is not possible to override column values that were given as SQL functions when "Alzabo::Runtime::Table->insert_handle" was called.

       This method returns a new "Alzabo::Runtime::Row" object.

       Throws: "Alzabo::Exception::Logic", "Alzabo::Exception::Params"

perl v5.8.8							    2007-12-23					Alzabo::Runtime::InsertHandle(3pm)

Alzabo::Runtime::JoinCursor(3pm)			User Contributed Perl Documentation			  Alzabo::Runtime::JoinCursor(3pm)

NAME

       Alzabo::Runtime::JoinCursor - Cursor that returns arrays of "Alzabo::Runtime::Row" objects

SYNOPSIS

	 use Alzabo::Runtime::JoinCursor;

	 my $cursor = $schema->join( tables => [ $foo, $bar ],
				     where => [ $foo->column('foo_id'), '=', 1 ] );

	 while ( my @rows = $cursor->next )
	 {
	     print $rows[0]->select('foo'), "
";
	     print $rows[1]->select('bar'), "
";
	 }

DESCRIPTION

       Objects in this class are used to return arrays of Alzabo::Runtime::Row objects when requested.	The cursor does not preload objects but
       rather creates them on demand, which is much more efficient.  For more details on the rational please see the RATIONALE FOR CURSORS section
       in Alzabo::Design.

INHERITS FROM

       "Alzabo::Runtime::Cursor"

METHODS

       next

       Returns the next array of "Alzabo::Runtime::Row" objects or an empty list if no more are available.

       If an individual row could not be fetched, then the array may contain some "undef" values.  For outer joins, this is normal behavior, but
       for regular joins, this probably indicates a data error.

       all_rows

       This method fetches all the rows available from the current point onwards.  This means that if there are five set of rows that will be
       returned when the object is created and you call "next()" twice, calling "all_rows()" after it will only return three sets.

       The return value is an array of array references.  Each of these references represents a single set of rows as they would be returned from
       the "next" method.

       reset

       Resets the cursor so that the next "next()" call will return the first row of the set.

       count

       Returns the number of rowsets returned by the cursor so far.

       next_as_hash

       Returns the next rows in a hash, where the hash keys are the table names and the hash values are the row object.  If a table has been
       included in the join via an outer join, then it is only included in the hash if there is a row for that table.

AUTHOR

       Dave Rolsky, <autarch@urth.org>

perl v5.8.8							    2007-12-23					  Alzabo::Runtime::JoinCursor(3pm)