diff options
| author | ewinslow <ewinslow@36083f99-b078-4883-b0ff-0f9b5a30f544> | 2010-09-06 02:42:09 +0000 |
|---|---|---|
| committer | ewinslow <ewinslow@36083f99-b078-4883-b0ff-0f9b5a30f544> | 2010-09-06 02:42:09 +0000 |
| commit | 76dac45ebaf104b312a8527a05424601ca9d520a (patch) | |
| tree | 7440558a893ebf1d3816829ecbb96c3b0df9b4f0 /engine/classes/ODDDocument.php | |
| parent | 9e8baf614938dfd1687ddce39b409c3c0e5c5753 (diff) | |
| download | elgg-76dac45ebaf104b312a8527a05424601ca9d520a.tar.gz elgg-76dac45ebaf104b312a8527a05424601ca9d520a.tar.bz2 | |
Refs #2220: Pulled most classes / interfaces out of lib files (except query.php and exception.php) into "classes" folder. Replaced inline classes with "require_once" statements for now. Ran unit tests to verify functionality before committing.
git-svn-id: http://code.elgg.org/elgg/trunk@6908 36083f99-b078-4883-b0ff-0f9b5a30f544
Diffstat (limited to 'engine/classes/ODDDocument.php')
| -rw-r--r-- | engine/classes/ODDDocument.php | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/engine/classes/ODDDocument.php b/engine/classes/ODDDocument.php new file mode 100644 index 000000000..0c8731a75 --- /dev/null +++ b/engine/classes/ODDDocument.php @@ -0,0 +1,129 @@ +<?php
+/**
+ * @class ODDDocument ODD Document container.
+ * This class is used during import and export to construct.
+ * @author Curverider Ltd
+ */
+class ODDDocument implements Iterator {
+ /**
+ * ODD Version
+ *
+ * @var string
+ */
+ private $ODDSupportedVersion = "1.0";
+
+ /**
+ * Elements of the document.
+ */
+ private $elements;
+
+ /**
+ * Optional wrapper factory.
+ */
+ private $wrapperfactory;
+
+ public function __construct(array $elements = NULL) {
+ if ($elements) {
+ if (is_array($elements)) {
+ $this->elements = $elements;
+ } else {
+ $this->addElement($elements);
+ }
+ } else {
+ $this->elements = array();
+ }
+ }
+
+ /**
+ * Return the version of ODD being used.
+ *
+ * @return string
+ */
+ public function getVersion() {
+ return $this->ODDSupportedVersion;
+ }
+
+ public function getNumElements() {
+ return count($this->elements);
+ }
+
+ public function addElement(ODD $element) {
+ if (!is_array($this->elements)) {
+ $this->elements = array();
+ $this->elements[] = $element;
+ }
+ }
+
+ public function addElements(array $elements) {
+ foreach ($elements as $element) {
+ $this->addElement($element);
+ }
+ }
+
+ public function getElements() {
+ return $this->elements;
+ }
+
+ /**
+ * Set an optional wrapper factory to optionally embed the ODD document in another format.
+ */
+ public function setWrapperFactory(ODDWrapperFactory $factory) {
+ $this->wrapperfactory = $factory;
+ }
+
+ /**
+ * Magic function to generate valid ODD XML for this item.
+ */
+ public function __toString() {
+ $xml = "";
+
+ if ($this->wrapperfactory) {
+ // A wrapper has been provided
+ $wrapper = $this->wrapperfactory->getElementWrapper($this); // Get the wrapper for this element
+
+ $xml = $wrapper->wrap($this); // Wrap this element (and subelements)
+ } else {
+ // Output begin tag
+ $generated = date("r");
+ $xml .= "<odd version=\"{$this->ODDSupportedVersion}\" generated=\"$generated\">\n";
+
+ // Get XML for elements
+ foreach ($this->elements as $element) {
+ $xml .= "$element";
+ }
+
+ // Output end tag
+ $xml .= "</odd>\n";
+ }
+
+ return $xml;
+ }
+
+ // ITERATOR INTERFACE //////////////////////////////////////////////////////////////
+ /*
+ * This lets an entity's attributes be displayed using foreach as a normal array.
+ * Example: http://www.sitepoint.com/print/php5-standard-library
+ */
+
+ private $valid = FALSE;
+
+ function rewind() {
+ $this->valid = (FALSE !== reset($this->elements));
+ }
+
+ function current() {
+ return current($this->elements);
+ }
+
+ function key() {
+ return key($this->elements);
+ }
+
+ function next() {
+ $this->valid = (FALSE !== next($this->elements));
+ }
+
+ function valid() {
+ return $this->valid;
+ }
+}
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