From 9848197e9e0830c569ae2addcd404c59c0a53180 Mon Sep 17 00:00:00 2001
From: mguetlein <martin.guetlein@gmail.com>
Date: Mon, 7 Feb 2011 10:07:34 +0100
Subject: add Dataset.exist as find loads all data

---
 lib/dataset.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'lib/dataset.rb')

diff --git a/lib/dataset.rb b/lib/dataset.rb
index a4716dc..02b89cb 100644
--- a/lib/dataset.rb
+++ b/lib/dataset.rb
@@ -56,6 +56,19 @@ module OpenTox
       dataset.load_all(subjectid)
       dataset
     end
+    
+    # replaces find as exist check, takes not as long, does NOT raise an un-authorized exception
+    # @param [String] uri Dataset URI
+    # @return [Boolean] true if dataset exists and user has get rights, false else 
+    def self.exist?(uri, subjectid=nil)
+      return false unless uri
+      dataset = Dataset.new(uri, subjectid)
+      begin
+        dataset.load_metadata( subjectid ).size > 0
+      rescue
+        false
+      end
+    end
 
     # Get all datasets from a service
     # @param [optional,String] uri URI of the dataset service, defaults to service specified in configuration
-- 
cgit v1.2.3