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<?php /** * Managed collection of fields * @package Simple Lightbox * @subpackage Fields * @author Archetyped / class SLB_Field_Collection extends SLB_Field_Base { / Configuration / protected $mode = 'sub'; / Properties / /* * Item type * @var string / var $item_type = 'SLB_Field'; /* * Indexed array of items in collection * @var array / var $items = array(); var $build_vars_default = array ( 'groups' => array(), 'context' => '', 'layout' => 'form', 'build' => true, 'build_groups' => true, ); /* * Associative array of groups in collection * Key: Group ID * Value: object of group properties * > id * > title * > description string Group description * > items array Items in group * @var array / var $groups = array(); protected $properties_init = null; / Constructors / /* * Class constructor * @uses parent::__construct() * @uses self::make_properties() * @uses self::init() * @uses self::add_groups() * @uses self::add_items() * @param string $id Collection ID * @param array $properties (optional) Properties to set for collection (Default: none) / public function __construct($id, $properties = null) { $args = func_get_args(); $properties = $this->make_properties($args); // Parent constructor parent::__construct($properties); // Save initial properties $this->properties_init = $properties; } public function _init() { parent::_init(); // Load properties. $this->load($this->properties_init, false); // Add custom ID format(s). $this->add_id_format( 'formatted', [ 'wrap' => [ 'open' => '_' ], 'prefix' => [ 'get_prefix' ], 'recursive' => false, ] ); } /- Getters/Setters -/ / Setup / /* * Load collection with specified properties * Updates existing properties * @param array $properties Properties to load * @param bool $update (optional) Update (TRUE) or overwrite (FALSE) items/groups (Default: TRUE) * @return object Current instance / public function load($properties, $update = true) { $args = func_get_args(); $properties = $this->make_properties($args); if ( !empty($properties) ) { // Groups if ( isset($properties['groups']) ) { $this->add_groups($properties['groups'], $update); } // Items if ( isset($properties['items']) ) { $this->add_items($properties['items'], $update); } } return $this; } / Data / /* * Retrieve external data for items in collection * Retrieved data is saved to the collection's $data property * Uses class properties to determine how data is retrieved * Examples: * > DB * > XML * > JSON * @return void / function load_data() { $this->data_loaded = true; } /* * Set data for an item * @param mixed $item Field to set data for * > string Field ID * > object Field Reference * > array Data for multiple items (associative array [field ID => data]) * @param mixed $value Data to set * @param bool $save (optional) Whether or not data should be saved to DB (Default: Yes) / function set_data($item, $value = '', $save = true, $force_set = false) { // Set data for entire collection if ( is_array($item) ) { $this->data = wp_parse_args($item, $this->data); // Update save option $args = func_get_args(); if ( 2 == count($args) && is_bool($args[1]) ) { $save = $args[1]; } } // Get $item's ID elseif ( is_object($item) && method_exists($item, 'get_id') ) $item = $item->get_id(); // Set data if ( is_string($item) && !empty($item) && ( isset($this->items[$item]) \|\| !!$force_set ) ) $this->data[$item] = $value; if ( !!$save ) $this->save(); } / Item / /* * Adds item to collection * @param string\|obj $id Unique name for item or item instance * @param array $properties (optional) Item properties * @param bool $update (optional) Update or overwrite existing item (Default: FALSE) * @return object Newly-added item / function add($id, $properties = array(), $update = false) { $item; $args = func_get_args(); // Properties foreach ( array_reverse($args) as $arg ) { if ( is_array($arg) ) { $properties = $arg; break; } } if ( !is_array($properties) ) { $properties = array(); } // Handle item instance if ( $id instanceof $this->item_type ) { $item = $id; $item->set_properties($properties); } elseif ( class_exists($this->item_type) ) { $defaults = array ( 'parent' => null, 'group' => null ); $properties = array_merge($defaults, $properties); if ( is_string($id) ) { $properties['id'] = $id; } if ( !!$update && $this->has($properties['id']) ) { // Update existing item $item = $this->get($properties['id']); $item->set_properties($properties); } else { // Init item $type = $this->item_type; $item = new $type($properties); } } if ( empty($item) \|\| 0 == strlen($item->get_id()) ) { return false; } // Set container $item->set_container($this); // Add item to collection $this->items[$item->get_id()] = $item; if ( isset($properties['group']) ) { $this->add_to_group($properties['group'], $item->get_id()); } return $item; } /* * Removes item from collection * @param string\|object $item Object or item ID to remove * @param bool $save (optional) Whether to save the collection after removing item (Default: YES) / function remove($item, $save = true) { // Remove item if ( $this->has($item) ) { $item = $this->get($item); $item = $item->get_id(); // Remove from items array unset($this->items[$item]); // Remove item from groups $this->remove_from_group($item); } // Remove item data from collection $this->remove_data($item, false); if ( !!$save ) $this->save(); } /* * Remove item data from collection * @param string\|object $item Object or item ID to remove * @param bool $save (optional) Whether to save the collection after removing item (Default: YES) / function remove_data($item, $save = true) { // Get item ID from object if ( $this->has($item) ) { $item = $this->get($item); $item = $item->get_id(); } // Remove data from data member if ( is_string($item) && is_array($this->data) ) { unset($this->data[$item]); if ( !!$save ) $this->save(); } } /* * Checks if item exists in the collection * @param string $item Item ID * @return bool TRUE if item exists, FALSE otherwise / function has($item) { return ( !is_string($item) \|\| empty($item) \|\| is_null($this->get_member_value('items', $item, null)) ) ? false : true; } /* * Retrieve specified item in collection * @param string\|object $item Item object or ID to retrieve * @return SLB_Field Specified item / function get($item, $safe_mode = false) { if ( $this->has($item) ) { if ( !is_object($item) \|\| !($item instanceof $this->item_type) ) { if ( is_string($item) ) { $item = trim($item); $item =& $this->items[$item]; } else { $item = false; } } } else { $item = false; } if ( !!$safe_mode && !is_object($item) ) { // Fallback: Return empty item if no item exists $type = $this->item_type; $item = new $type(''); } return $item; } /* * Retrieve item data * @param $item Item to get data for * @param $context (optional) Context * @param $top (optional) Iterate through ancestors to get data (Default: Yes) * @return mixed Item data / function get_data($item = null, $context = '', $top = true) { $this->load_data(); $ret = null; if ( $this->has($item) ) { $item = $this->get($item); $ret = $item->get_data($context, $top); } else { $ret = parent::get_data($context, $top); } if ( is_string($item) && is_array($ret) && isset($ret[$item]) ) $ret = $ret[$item]; return $ret; } / Items (Collection) / /* * Add multiple items to collection * @param array $items Items to add to collection * Array Structure: * > Key (string): Item ID * > Val (array): Item properties * @return void / function add_items($items = array(), $update = false) { // Validate if ( !is_array($items) \|\| empty($items) ) { return false; } // Add items foreach ( $items as $id => $props ) { $this->add($id, $props, $update); } } /* * Retrieve reference to items in collection * @return array Collection items (reference) / function &get_items($group = null, $sort = 'priority') { $gset = $this->group_exists($group); if ( $gset ) { $items = $this->get_group_items($group); } elseif ( !empty($group) ) { $items = array(); } else { $items = $this->items; } if ( !empty($items) ) { // Sort items if ( !empty($sort) && is_string($sort) ) { if ( 'priority' == $sort ) { if ( $gset ) { // Sort by priority ksort($items, SORT_NUMERIC); } } } // Release from buckets if ( $gset ) { $items = call_user_func_array('array_merge', $items); } } return $items; } /* * Build output for items in specified group * If no group specified, all items in collection are built * @param string\|object $group (optional) Group to build items for (ID or instance object) / function build_items($group = null) { // Get group items $items =& $this->get_items($group); if ( empty($items) ) { return false; } $this->util->do_action_ref_array('build_items_pre', array($this)); foreach ( $items as $item ) { $item->build(); } $this->util->do_action_ref_array('build_items_post', array($this)); } / Group / /* * Add groups to collection * @param array $groups Associative array of group properties * Array structure: * > Key (string): group ID * > Val (string): Group Title / function add_groups($groups = array(), $update = false) { // Validate if ( !is_array($groups) \|\| empty($groups) ) { return false; } // Iterate foreach ( $groups as $id => $props ) { $this->add_group($id, $props, null, $update); } } /* * Adds group to collection * Groups are used to display related items in the UI * @param string $id Unique name for group * @param string $title Group title * @param string $description Short description of group's purpose * @param array $items (optional) ID's of existing items to add to group * @return object Group object / function &add_group($id, $properties = array(), $items = array(), $update = false) { // Create new group and set properties $default = array ( 'title' => '', 'description' => '', 'priority' => 10 ); $p = ( is_array($properties) ) ? array_merge($default, $properties) : $default; if ( !is_int($p['priority']) \|\| $p['priority'] < 0 ) { $p['priority'] = $default['priority']; } $id = trim($id); // Retrieve or init group if ( !!$update && $this->group_exists($id) ) { $grp = $this->get_group($id); $grp->title = $p['title']; $grp->description = $p['description']; $grp->priority = $p['priority']; } else { $this->groups[$id] =& $this->create_group($id, $p['title'], $p['description'], $p['priority']); } // Add items to group (if supplied) if ( !empty($items) && is_array($items) ) { $this->add_to_group($id, $items); } return $this->groups[$id]; } /* * Remove specified group from collection * @param string $id Group ID to remove / function remove_group($id) { $id = trim($id); if ( $this->group_exists($id) ) { unset($this->groups[$id]); } } /* * Standardized method to create a new item group * @param string $title Group title (used in meta boxes, etc.) * @param string $description Short description of group's purpose * @param int $priority (optional) Group priority (e.g. used to sort groups during output) * @return object Group object / function &create_group($id = '', $title = '', $description = '', $priority = 10) { // Create new group object $group = new stdClass(); / Set group properties / // Set ID $id = ( is_scalar($id) ) ? trim($id) : ''; $group->id = $id; // Set Title $title = ( is_scalar($title) ) ? trim($title) : ''; $group->title = $title; // Set Description $description = ( is_scalar($description) ) ? trim($description) : ''; $group->description = $description; // Priority $group->priority = ( is_int($priority) ) ? $priority : 10; // Create array to hold items $group->items = array(); return $group; } /* * Checks if group exists in collection * @param string $id Group name * @return bool TRUE if group exists, FALSE otherwise / function group_exists($group) { $ret = false; if ( is_object($group) ) { $ret = true; } elseif ( is_string($group) && ($group = trim($group)) && strlen($group) > 0 ) { $group = trim($group); // Check if group exists $ret = !is_null($this->get_member_value('groups', $group, null)); } return $ret; } /* * Adds item to a group in the collection * Group is created if it does not already exist * @param string\|array $group ID of group (or group parameters if new group) to add item to * @param string\|array $items Name or array of item(s) to add to group / function add_to_group($group, $items, $priority = 10) { // Validate if ( empty($items) \|\| empty($group) \|\| ( !is_string($group) && !is_array($group) ) ) { return false; } // Get group ID if ( is_string($group) ) { $group = array($group, $priority); } list($gid, $priority) = $group; $gid = trim(sanitize_title_with_dashes($gid)); if ( empty($gid) ) { return false; } // Item priority if ( !is_int($priority) ) { $priority = 10; } // Prepare group if ( !$this->group_exists($gid) ) { // TODO Follow call_user_func($this->m('add_group'), $gid, $group); } // Prepare items if ( !is_array($items) ) { $items = array($items); } // Add Items foreach ( $items as $item ) { // Skip if not in current collection $itm_ref = $this->get($item); if ( !$itm_ref ) { continue; } $itm_id = $itm_ref->get_id(); // Remove item from any other group it's in (items can only be in one group) foreach ( $this->get_groups() as $group ) { foreach ( $group->items as $tmp_pri => $tmp_items ) { if ( isset($group->items[$tmp_pri][$itm_id]) ) { unset($group->items[$tmp_pri][$itm_id]); } } } // Add reference to item in group $items =& $this->get_group($gid)->items; if ( !isset($items[$priority]) ) { $items[$priority] = array(); } $items[$priority][$itm_id] = $itm_ref; } unset($itm_ref); } /* * Remove item from a group * If no group is specified, then item is removed from all groups * @param string\|object $item Object or ID of item to remove from group * @param string $group (optional) Group ID to remove item from / function remove_from_group($item, $group = '') { // Get ID of item to remove or stop execution if item invalid $item = $this->get($item); $item = $item->get_id(); if ( !$item ) return false; // Remove item from group if ( !empty($group) ) { // Remove item from single group if ( ($group =& $this->get_group($group)) && isset($group->items[$item]) ) { unset($group->items[$item]); } } else { // Remove item from all groups foreach ( array_keys($this->groups) as $group ) { if ( ($group =& $this->get_group($group)) && isset($group->items[$item]) ) { unset($group->items[$item]); } } } } /* * Retrieve specified group * @param string $group ID of group to retrieve * @return object Reference to specified group / function &get_group($group) { if ( is_object($group) ) { return $group; } if ( is_string($group) ) { $group = trim($group); } // Create group if it doesn't already exist if ( ! $this->group_exists($group) ) { $this->add_group($group); } return $this->get_member_value('groups', $group); } /* * Retrieve a group's items * @uses SLB_Field_Collection::get_group() to retrieve group object * @param object\|string $group Group object or group ID * @return array Group's items / function &get_group_items($group) { $group =& $this->get_group($group); return $group->items; } /* * Retrieve all groups in collection * @return array Reference to group objects / function &get_groups($opts = array()) { $groups =& $this->get_member_value('groups'); if ( is_array($opts) && !empty($opts) ) { extract($opts, EXTR_SKIP); if ( !empty($groups) && !empty($sort) && is_string($sort) ) { if ( property_exists(current($groups), $sort) ) { // Sort groups by property $sfunc = function ( $a, $b ) use ($sort) { $ap = $a->$sort; $bp = $b->$sort; if ( $ap == $bp ) { return 0; } return ( $ap > $bp ) ? 1 : -1; }; uasort($groups, $sfunc); } } } return $groups; } /* * Output groups * @uses self::build_vars to determine groups to build / function build_groups() { $this->util->do_action_ref_array('build_groups_pre', array($this)); // Get groups to build $groups = ( !empty($this->build_vars['groups']) ) ? $this->build_vars['groups'] : array_keys($this->get_groups(array('sort' => 'priority'))); // Check options if ( is_callable($this->build_vars['build_groups']) ) { // Pass groups to callback to build output call_user_func_array($this->build_vars['build_groups'], array($this, $groups)); } elseif ( !!$this->build_vars['build_groups'] ) { // Build groups foreach ( $groups as $group ) { $this->build_group($group); } } $this->util->do_action_ref_array('build_groups_post', array($this)); } /* * Build group / function build_group($group) { if ( !$this->group_exists($group) ) { return false; } $group =& $this->get_group($group); // Stop processing if group contains no items if ( !count($this->get_items($group)) ) { return false; } // Pre action $this->util->do_action_ref_array('build_group_pre', array($this, $group)); // Build items $this->build_items($group); // Post action $this->util->do_action_ref_array('build_group_post', array($this, $group)); } / Collection / /* * Build entire collection of items * Prints output / function build($build_vars = array()) { // Parse vars $this->parse_build_vars($build_vars); $this->util->do_action_ref_array('build_init', array($this)); // Pre-build output $this->util->do_action_ref_array('build_pre', array($this)); // Build groups $this->build_groups(); // Post-build output $this->util->do_action_ref_array('build_post', array($this)); } /* * Set build variable * @param string $key Variable name * @param mixed $val Variable value / function set_build_var($key, $val) { $this->build_vars[$key] = $val; } /* * Retrieve build variable * @param string $key Variable name * @param mixed $default Value if variable is not set * @return mixed Variable value / function get_build_var($key, $default = null) { return ( array_key_exists($key, $this->build_vars) ) ? $this->build_vars[$key] : $default; } /* * Delete build variable * @param string $key Variable name to delete / function delete_build_var($key) { if ( array_key_exists($key, $this->build_vars) ) { unset($this->build_vars[$key]); } } /* * Parses build variables prior to use * @uses this->reset_build_vars() to reset build variables for each request * @param array $build_vars Variables to use for current request / function parse_build_vars($build_vars = array()) { $this->reset_build_vars(); $this->build_vars = $this->util->apply_filters('parse_build_vars', wp_parse_args($build_vars, $this->build_vars), $this); } /* * Reset build variables to defaults * Default Variables * > groups - array - Names of groups to build * > context - string - Context of current request * > layout - string - Name of default layout to use */ function reset_build_vars() { $this->build_vars = wp_parse_args($this->build_vars, $this->build_vars_default); } }

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