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authorSilvio <silvio@devlet.com.br>2010-08-18 15:22:43 -0300
committerSilvio <silvio@devlet.com.br>2010-08-18 15:22:43 -0300
commitad8d8568b683e6935bec64abe88f79bf31706dd7 (patch)
tree43d00493cf8676acbcf4bec74bf44c717107ecd6 /classes/backends/MaleteDb.php
parent219aa7f6b4a19b723b0c25683801b1b5d502e9f4 (diff)
downloadcinisis-ad8d8568b683e6935bec64abe88f79bf31706dd7.tar.gz
cinisis-ad8d8568b683e6935bec64abe88f79bf31706dd7.tar.bz2
Adding audit and finder classes, cleanup and organization
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+<?php
+
+/**
+ * Malete implementation of IsisDb.
+ *
+ * @warning
+ * This implementation is currently outdated and lacks
+ * basic functionalities such as subfield handling and
+ * therefore it's use is not recommended.
+ */
+class MaleteDb implements IsisDb {
+ /**
+ * @var $fdt
+ * Field description table.
+ */
+ var $fdt;
+
+ /**
+ * @var $db
+ * Database resource.
+ */
+ var $db;
+
+ /**
+ * @var $format
+ * Database format, derived from $schema.
+ */
+ var $format;
+
+ /**
+ * @var $log
+ * Class action log.
+ */
+ var $log;
+
+ /**
+ * Constructor.
+ *
+ * @see IsisDb::__construct()
+ */
+ public function __construct($schema) {
+ // Save db schema.
+ $this->format = $schema;
+
+ // Setup $fdt used by malete.
+ foreach ($schema['fields'] as $field => $info) {
+ $this->fdt[$field] = $info['name'];
+ }
+
+ // Open a database connection.
+ $this->db = new Isis_Db($this->fdt, $schema['db']['name'], new Isis_Server());
+ if (!$this->db->srv->sock) {
+ return FALSE;
+ }
+ }
+
+ /**
+ * Read an entry.
+ *
+ * @see IsisDb::read()
+ *
+ * @todo
+ * Subfield handling.
+ */
+ public function read($id) {
+ if (!is_numeric($id)) {
+ return FALSE;
+ }
+ if ($results !== FALSE) {
+ $results = $this->db->read($id);
+ return $this->tag($results);
+ }
+ else {
+ return FALSE;
+ }
+ }
+
+ /**
+ * Return number of entries in the database.
+ *
+ * The Malete API doen't implement such feature so we
+ * have to emulate it by iterating over all entries
+ * until MaleteDb::read() returns FALSE.
+ *
+ * @see IsisDb::entries()
+ */
+ public function entries() {
+ // The first entry in a malete database has id 1 and
+ // not 0, therefore $id's initial value should be 1.
+ $id = 1;
+ while($this->db->read($id)) {
+ $id++;
+ }
+ return $id - 1;
+ }
+
+ /**
+ * Return an example schema.
+ *
+ * @see IsisDb::example()
+ */
+ public function example() {
+ return SchemaDb::example();
+ }
+
+ /**
+ * Check configuration.
+ *
+ * @see IsisDb::check()
+ */
+ public function check($schema, $section = NULL) {
+ // Check API availability.
+ if (!class_exists('Isis_Db')) {
+ throw new Exception('Could not find Isis_Db class. Please check your malete installation.');
+ return FALSE;
+ }
+
+ // Check schema configuration.
+ return SchemaDb::check($schema, $section);
+ }
+
+ /**
+ * Tag results of a db query.
+ *
+ * This function converts the keys of query result from field numbers
+ * to names and and also puts repetition fields into place as Malete
+ * deals with field repetition by using a 'tag' property in the resulting
+ * query object.
+ *
+ * @param $results
+ * Database query results.
+ *
+ * @return
+ * Tagged database result.
+ */
+ function tag($results) {
+ foreach ($results->val as $key => $value) {
+ $field = $results->tag[$key];
+ $name = $this->format['fields'][$field]['name'];
+
+ // Handles field repetition.
+ if ($this->format['fields'][$field]['repeat']) {
+ $data[$name][] = $value;
+ }
+ else {
+ $data[$name] = $value;
+ }
+ }
+ return $data;
+ }
+
+ /**
+ * Class logger.
+ *
+ * @param $message
+ * Log message.
+ */
+ function logger($message) {
+ $this->log[] = $message;
+ }
+}