Bric::Biz::Category(3p)

NAME
Bric::Biz::Category - A module to group assets into categories.

VERSION
$LastChangedRevision$

DATE
$LastChangedDate: 2007-06-14 10:40:30 +0200 (Thu, 14 Jun 2007) $

SYNOPSIS
 # Return a new category object.
 my $cat = Bric::Biz::Category->new($init);

 # Look up an existing category object.
 my $cat = Bric::Biz::Category->lookup({'id' => $cat_id});

 # Search for a list of categories.
 my @cats = Bric::Biz::Category->list($crit);

 # Attribute accessors.
 my $id = $cat->get_id;
 my $name = $cat->get_name;
 $cat = $cat->set_name($name);
 my $desc = $cat->get_description;
 $cat = $cat->set_description($desc);
 my $site_id = $cat->get_site_id;
 $cat = $cat->set_site_id($site_id);

 # Return a list of child categories of this category.
 @cats   = $cat->get_children();
 # Return the parent of this category.
 $parent = $cat->get_parent();

 # Attribute methods.
 $val = $element->set_attr($name, $value);
 $val = $element->get_attr($name);
 $val = $element->set_meta($name, $field, $value);
 $val = $element->get_meta($name, $field);

 # Ad string methods
 $txt = $element->get_ad_string;
 $element->set_ad_string($value);
 $txt = $element->get_ad_string2;
 $element->set_ad_string2($value);

 # Add/Delete child categories for this category.
 $cat->add_child([$cat || $cat_id]);
 $cat->del_child([$cat || $cat_id]);

 # Manage keyword associations.
 @keys = $cat->get_keywords;
 $cat->add_keywords(@keywords);
 $cat->del_keywords(@keywords);

 # Save information for this category to the database.
 $cat->save;

DESCRIPTION
Allows assets to be grouped into categories. In addition to assets a category can contain other categories, allowing a hierarchical layout of categories and assets. New categories will inherit group memberships and asset group permissions from their parents, but those relationships will thereafter be independent of the parent's.

INTERFACE

  Constructors

$obj = new Bric::Biz::Category($init);
    Create a new object of type Bric::Biz::Category. Once "save()"d, the new category will have the same group memberships as the parent, and have the same permissions granted to its asset group as are granted to the parent's asset group.

    Keys for $init are:

    *   name

        The name for this category.

    *   site_id

        The ID for the site this category is in.

    *   description

        A description of this category

    *   directory

        The directory name this category should be associated with.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

@objs = Bric::Biz::Category->lookup({ id => $cat_id });
@objs = Bric::Biz::Category->lookup({ uri => $uri });
    Return an object given an ID or URI, both of which are unique across URIs.

    Throws:

    *   Too many category objects found.

    Side Effects:

    NONE

    Notes:

    NONE

@objs = list Bric::Biz::Category($crit);
    Return a list of category objects based on certain criteria

    Criteria keys:

    id  Category ID. May use "ANY" for a list of possible values.

    name
        The name of the category. May use "ANY" for a list of possible values.

    directory
        The category directory name. May use "ANY" for a list of possible values.

    uri The category URI. May use "ANY" for a list of possible values.

    active
    description
        The category description. May use "ANY" for a list of possible values.

    parent_id
        The ID category of a parent category. May use "ANY" for a list of possible values.

    grp_id
        The ID of a Bric::Util::Grp object to which the category belongs. May use "ANY" for a list of possible values.

    site_id
        The ID of a Bric::Biz::Site object with which the category is associated. May use "ANY" for a list of possible values.

    Throws:

    "Method not implemented"

    Side Effects:

    NONE

    Notes:

    This is the default list constructor which should be overridden in all derived classes even if it just calls 'die'.

  Destructors

$cat->DESTROY()
    Deletes the object.

    Throws: NONE.

    Side Effects: NONE.

    Notes: NONE.

  Public Class Methods

my $meths = Bric::Biz::Category->my_meths
my (@meths || $meths_aref) = Bric::Biz::Category->my_meths(TRUE)
my (@meths || $meths_aref) = Bric::Biz::Category->my_meths(0, TRUE)
    Returns an anonymous hash of introspection data for this object. If called with a true argument, it will return an ordered list or anonymous array of introspection data. If a second true argument is passed instead of a first, then a list or anonymous array of introspection data will be returned for properties that uniquely identify an object (excluding "id", which is assumed).

    Each hash key is the name of a property or attribute of the object. The value for a hash key is another anonymous hash containing the following keys:

    name
        The name of the property or attribute. Is the same as the hash key when an anonymous hash is returned.

    disp
        The display name of the property or attribute.

    get_meth
        A reference to the method that will retrieve the value of the property or attribute.

    get_args
        An anonymous array of arguments to pass to a call to get_meth in order to retrieve the value of the property or attribute.

    set_meth
        A reference to the method that will set the value of the property or attribute.

    set_args
        An anonymous array of arguments to pass to a call to set_meth in order to set the value of the property or attribute.

    type
        The type of value the property or attribute contains. There are only three types:

        short
        date
        blob
    len If the value is a 'short' value, this hash key contains the length of the field.

    search
        The property is searchable via the list() and list_ids() methods.

    req The property or attribute is required.

    props
        An anonymous hash of properties used to display the property or attribute. Possible keys include:

        type
            The display field type. Possible values are

            text
            textarea
            password
            hidden
            radio
            checkbox
            select
        length
            The Length, in letters, to display a text or password field.

        maxlength
            The maximum length of the property or value - usually defined by the SQL DDL.

    rows
        The number of rows to format in a textarea field.

    cols
        The number of columns to format in a textarea field.

    vals
        An anonymous hash of key/value pairs reprsenting the values and display names to use in a select list.

    Throws: NONE.

    Side Effects: NONE.

    Notes: NONE.

my (@person_ids || $person_ids_aref) = Bric::Biz::Person->list_ids($params)
    Returns a list or anonymous array of Bric::Biz::Category object IDs based on the search criteria passed via an anonymous hash. The supported lookup keys are the same as those for "list()".

    Throws: NONE.

    Side Effects: NONE.

    Notes: NONE.

$cat = Bric::Biz::Category->site_root_category($site || $site_id)
$cat_id = Bric::Biz::Category->site_root_category_id($site || $site_id)
$cat = $cat->site_root_category()
$cat_id = $cat->site_root_category_id()
    Return the root category and the root category ID for a particular site. If called as an instance method the site or site ID is not necessary; that information will be pulled from $cat->get_site_id.

    Returns the category or category ID of the root category for this site.

    Throws:

    *   Could not determine the site ID for the current site.

    Side Effects: NONE.

    Notes: NONE.

  Public Instance Methods

@objs = $cat->ancestry();
    Return all the parent category of this category

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

my $path = $cat->ancestry_path();
    An alias for get_uri().

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

my $uri = $cat->get_uri();
    Returns the list of ancestors for this category formatted into a URI.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

my $path = $cat->ancestry_dir();
    Returns the list of ancestors for this category formatted into a localized directory structure.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

my $dir = $cat->set_directory($dir);
    Sets this category's directory.

    Throws:

    NONE

    Side Effects:

    Sets the _update_uri flag, which means that when the category's information is saved to the database, the URI field needs to be updated for itself and all its children.

    Notes:

    NONE

my $dir = $cat->set_parent_id($parent_id);
    Sets this category's parent ID, making it a child of that category.

    Throws:

    NONE

    Side Effects:

    Sets the _update_uri flag, which means that when the category's information is saved to the database, the URI field needs to be updated for itself and all its children.

    Notes:

    NONE

$val = $element->set_ad_string($value);
$self = $element->get_ad_string;
$val = $element->set_ad_string2($value);
$self = $element->get_ad_string2;
    Get/Set ad strings on this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$name = $cat->get_id;
    Return the ID of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$name = $cat->get_name;
    Return the name of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$self = $cat->set_name($name);
    Sets the name of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$name = $cat->get_site_id;
    Return the site ID for this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$name = $cat->set_site_id($id);
    Set the site ID for this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$desc = $cat->get_description;
    Returns the description of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$self = $cat->set_description($desc);
    Sets the description of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$val = $element->set_attr($name, $value);
$val = $element->get_attr($name);
    Get/Set attributes on this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$val = $element->set_meta($name, $field, $value);
$val = $element->get_meta($name, $field);
    Get/Set attribute metadata on this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

@keys = $cat->get_keywords;
@keys = $cat->get_keywords(@keyword_ids);
    Returns a list of keyword objects associated with this category. If passed a list of keyword IDs, it will return only those keyword objects.

    Throws: NONE

    Side Effects: NONE

    Notes: The old "keywords()" method has been deprecated. Please use "get_keywords()", instead.

@cats = $cat->get_children;
    Returns the children of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

my $parent = $cat->get_parent;
    Returns the parent of this category or undef if it is a top level category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$success = $cat->add_child([$cat || $cat_id]);
    Addes a category as a child of this category.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$cat = $cat->add_keywords(@keywords);
$cat = $cat->add_keywords(\@keywords);
$cat = $cat->add_keywords(@keyword_ids);
$cat = $cat->add_keywords(\@keyword_ids);
    Associates a each of the keyword in a list or array reference of keywords with the category object.

    Throws: NONE.

    Side Effects: NONE

    Notes: The old "add_keyword()" method has been deprecated. Please use "add_keywords()", instead.

$cat = $cat->del_keywords(@keywords);
$cat = $cat->del_keywords(\@keywords);
$cat = $cat->del_keywords(@keyword_ids);
$cat = $cat->del_keywords(\@keyword_ids);
    Dissociates a list or array reference of keyword objects or IDs from the category object.

    Throws: NONE.

    Side Effects: NONE

    Notes: The old "del_keyword()" method has been deprecated. Please use "del_keywords()", instead.

$att = $att->is_root_category;
    Return whether this is a root category or not

    Throws: NONE

    Side Effects: NONE

    Notes: NONE

$att = $att->is_active;
$att = $att->activate;
$att = $att->deactivate;
    Get/Set the active flag.

    Throws:

    NONE

    Side Effects:

    NONE

    Notes:

    NONE

$cat = $cat->save
    Save this category

    Throws: NONE.

    Side Effects: A new category will automatically be added to the same category groups as its parent, and permissions will be granted to its asset group exactly as they are granted to the parent.

    Notes: NONE.

  Private Methods
NONE.

  Private Class Methods
NONE

  Private Instance Methods
Several that need documenting!

_do_list
_save_attr
_load_grp
_update_category
_insert_category
my $kw_coll = &$get_kw_coll($self)
    Returns the collection of keywords for this category. The collection is a Bric::Util::Coll::Keyword object. See that class and its parent, Bric::Util::Coll, for interface details.

    Throws:

    *   Bric::_get() - Problems retrieving fields.

    *   Unable to prepare SQL statement.

    *   Unable to connect to database.

    *   Unable to select column into arrayref.

    *   Unable to execute SQL statement.

    *   Unable to bind to columns to statement handle.

    *   Unable to fetch row from statement handle.

    *   Incorrect number of args to Bric::_set().

    *   Bric::set() - Problems setting fields.

    Side Effects: NONE.

    Notes: NONE.

NOTES
NONE.

AUTHOR
Garth Webb <garth@perijove.com>

Jeff "japhy" Pinyan <japhy@pobox.com>

David Wheeler <david@justatheory.com>

SEE ALSO
perl, Bric::Util::Grp::Category, Bric, Bric::Biz::Keyword, Bric::Biz::Asset