Adding graph() method

Author: chris

lib/tripod.js

@@ -23,17 +23,7 @@ var Tripod = function(dbName,collectionName) {
 Tripod.prototype.describe = function(r,c,callback) {
     c = (c==null) ? this._config.get("defaultContext") : c;
     // todo: alias c and r
-    this._getCollection(function(err,collection) {
-        collection.findOne({_id:{"r":r,"c":c}},function(err,doc) {
-            if (err) {
-                callback(err,null);
-            } else {
-                var graph = new TripleGraph();
-                graph.addTripodDoc(doc);
-                callback(null,graph);
-            }
-        })
-    })
+    this.graph({_id:{"r":r,"c":c}},callback);
 };
 
 /**
@@ -42,20 +32,7 @@ Tripod.prototype.describe = function(r,c,callback) {
  * @param callback
  */
 Tripod.prototype.multiDescribe = function(ids,callback) {
-    var query = {_id: {'$in':ids}};
-    this._getCollection(function(err,collection) {
-        collection.find(query).toArray(function(err,docs) {
-            if (err) {
-                callback(err,null);
-            } else {
-                var graph = new TripleGraph();
-                docs.forEach(function(doc) {
-                    graph.addTripodDoc(doc);
-                });
-                callback(null,graph);
-            }
-        })
-    })
+    this.graph({_id: {'$in':ids}},callback);
 };
 
 /**
@@ -80,6 +57,27 @@ Tripod.prototype.getViewForResource = function (v,r,c,callback) {
     });
 };
 
+/**
+ * Fetch a graph based on a query
+ * @param query
+ * @param callback
+ */
+Tripod.prototype.graph = function(query,callback) {
+    this._getCollection(function(err,collection) {
+        collection.find(query).toArray(function(err,docs) {
+            if (err) {
+                callback(err,null);
+            } else {
+                var graph = new TripleGraph();
+                docs.forEach(function(doc) {
+                    graph.addTripodDoc(doc);
+                });
+                callback(null,graph);
+            }
+        })
+    })
+}
+
 /**
  * Get a graph containing the views of type v for the resources represented in the Array ids
  * @param v - view type