Adding PhpIsis implementation of IsisDb

1 files changed, 51 insertions, 0 deletions

diff --git a/classes/PhpIsisDb.php b/classes/PhpIsisDb.php
new file mode 100644
index 0000000..4e1aaf0
--- /dev/null
+++ b/classes/PhpIsisDb.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * PHP-Isis implementation of IsisDb.
+ */
+class PhpIsisDb implements IsisDb {
+  var $db;
+  var $format;
+
+  public function __construct($schema) {
+    // Save db schema.
+    $this->format = $schema;
+
+    // Setup $fdt used by malete.
+    foreach ($schema['fields'] as $field => $info) {
+      $this->fdt[$field] = $info['name'];
+    }
+
+    // Open the database.
+    $name     = $schema['db']['name'];
+    $this->db = isis_open("db/$name/$name");
+  }
+
+  public function read($id) {
+    $results = isis_search('$', $this->db);
+    if (!isis_data_seek($results, $id)) {
+      return FALSE;
+    }
+
+    return $this->tag(isis_fetch_array($results));
+  }
+
+  public function rows() {
+    return isis_last_mfn($this->db);
+  }
+
+  public function default_schema() {
+    return SchemaDb::default_schema();
+  }
+
+  // Tag results of a db query.
+  function tag($results) {
+    foreach ($results as $key => $value) {
+      if ($key != 'mfn') {
+        $name  = $this->format['fields'][$key]['name'];
+        $data[$name] = $value;
+      }
+    }
+    return $data;
+  }  
+}