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Class::DBI::ColumnGrouUser3Contributed Perl DocumeClass::DBI::ColumnGrouper(3)
NAME
Class::DBI::ColumnGrouper - Columns and Column Groups
SYNOPSIS
my $colg = Class::DBI::ColumnGrouper->new;
$colg->add_group(People => qw/star director producer/);
my @cols = $colg->group_cols($group);
my @all = $colg->all_columns;
my @pri_col = $colg->primary;
my @essential_cols = $colg->essential;
DESCRIPTION
Each Class::DBI class maintains a list of its columns as class data.
This provides an interface to that. You probably don't want to be
dealing with this directly.
METHODS
new
my $colg = Class::DBI::ColumnGrouper->new;
A new blank ColumnnGrouper object.
clone
my $colg2 = $colg->clone;
Clone an existing ColumnGrouper.
add_column / find_column
$colg->add_column($name);
my Class::DBI::Column $col = $colg->find_column($name);
Add or return a Column object for the given column name.
add_group
$colg->add_group(People => qw/star director producer/);
This adds a list of columns as a column group.
group_cols / groups_for
my @colg = $cols->group_cols($group);
my @groups = $cols->groups_for(@cols);
This returns a list of all columns which are in the given group, or the
groups a given column is in.
columns_in
my @cols = $colg->columns_in(@groups);
This returns a list of all columns which are in the given groups.
all_columns
my @all = $colg->all_columns;
This returns a list of all the real columns.
primary
my $pri_col = $colg->primary;
This returns a list of the columns in the Primary group.
essential
my @essential_cols = $colg->essential;
This returns a list of the columns in the Essential group.
perl v5.14.1 2005-09-14 Class::DBI::ColumnGrouper(3)
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