JTableNested

Beschreibung

class JTableNested extends JTable

ToDo Übersetzen

is a table class which supports modified pre-order tree traversal behaviour. This class is derived from the base JTable class and adds methods to support a binary tree structure in the database, with pre-order being the preferred method of traversal. From Joomla 1.6 onwards.

Definiert in

 /libraries/joomla/database/tablenested.php

Status

• @since

Erweitert

JTable

Wird erweitert von

JTableAsset, JTableCategory, JTableMenu.

Eigenschaften

Access	Typ	Name	Beschreibung
public	integer	$parent_id	Object property holding the primary key of the parent node. Provides adjacency list data for nodes. ToDo übersetzen
public	integer	$level	Object property holding the depth level of the node in the tree. ToDo übersetzen
public	integer	$lft	Object property holding the left value of the node for managing its placement in the nested sets tree. ToDo übersetzen
public	integer	$rgt	Object property holding the right value of the node for managing its placement in the nested sets tree. ToDo übersetzen
public	string	$alias	Object property holding the alias of this node used to constuct the full text path, forward-slash delimited. ToDo übersetzen
protected	string	$_location	Object property to hold the location type to use when storing the row. ToDo übersetzen
protected	integer	$_location_id	Object property to hold the primary key of the location reference node to use when storing the row. A combination of location type and reference node describes where to store the current node in the tree. ToDo übersetzen
protected	array	$_cache	An array to cache values in recursive processes. ToDo übersetzen
protected	integer	$_debug	Debug level ToDo übersetzen

Methoden

Access	Name
protected	_getNode($id, [$key = null]) Method to get nested set properties for a node in the tree.ToDo Beschreibung übersetzen
protected	_getTreeRepositionData($referenceNode, $nodeWidth, [$position = 'before']) Method to get various data necessary to make room in the tree at a location for a node and its children. The returned data object includes conditions for SQL WHERE clauses for updating left and right id values to make room for the node as well as the new left and right ids for the node.ToDo Beschreibung übersetzen
protected	_logtable([$showData = true], [$showQuery = true]) Method to create a log table in the buffer optionally showing the query and/or data.ToDo Beschreibung übersetzen
protected	_runQuery($query, $errorMessage) Method to run an update query and check for a database errorToDo Beschreibung übersetzen
public	check() Asset that the nested set data is valid.ToDo Beschreibung übersetzen
public	debug($level) Sets the debug level on or offToDo Beschreibung übersetzen
public	delete([$pk = null], [$children = true]) Method to delete a node and, optionally, its child nodes from the table.ToDo Beschreibung übersetzen
public	getPath([$pk = null], [$diagnostic = false]) Method to get an array of nodes from a given node to its root.ToDo Beschreibung übersetzen
public	getRootId() Gets the ID of the root item in the treeToDo Beschreibung übersetzen
public	getTree([$pk = null], [$diagnostic = false]) Method to get a node and all its child nodes.ToDo Beschreibung übersetzen
public	isLeaf([$pk = null]) Method to determine if a node is a leaf node in the tree (has no children).ToDo Beschreibung übersetzen
public	move($delta, [$where = ' ']) Method to move a row in the ordering sequence of a group of rows defined by an SQL WHERE clause.ToDo Beschreibung übersetzen
public	moveByReference($referenceId, [$position = 'after'], [$pk = null]) Method to move a node and its children to a new location in the tree.ToDo Beschreibung übersetzen
public	orderDown($pk) Method to move a node one position to the right in the same level.ToDo Beschreibung übersetzen
public	orderUp($pk) Method to move a node one position to the left in the same level.ToDo Beschreibung übersetzen
public	publish([$pks = null], [$state = 1], [$userId = 0]) Method to set the publishing state for a node or list of nodes in the database table. The method respects rows checked out by other users and will attempt to checkin rows that it can after adjustments are made. The method will not allow you to set a publishing state higher than any ancestor node and will not allow you to set a publishing state on a node with a checked out child.ToDo Beschreibung übersetzen
public	rebuild([$parentId = null], [$leftId = 0], [$level = 0], [$path = ' ']) Method to recursively rebuild the whole nested set tree.ToDo Beschreibung übersetzen
public	rebuildPath([$pk = null]) Method to rebuild the node's path field from the alias values of the nodes from the current node to the root node of the tree.ToDo Beschreibung übersetzen
public	saveorder([$idArray = null], [$lft_array = null]) Method to update order of table rowsToDo Beschreibung übersetzen
public	setLocation($referenceId, [$position = 'after']) Method to set the location of a node in the tree object. This method does not save the new location to the database, but will set it in the object so that when the node is stored it will be stored in the new location.ToDo Beschreibung übersetzen
public	store([$updateNulls = false]) Method to store a node in the database table.ToDo Beschreibung übersetzen

Siehe auch

• JTableNested auf api.joomla.org