added database factory method

lib/couch_rest.rb

@@ -12,10 +12,17 @@ class CouchRest
     path = uri.path
     uri.path = ''
     cr = CouchRest.new(uri.to_s)
-    cr.create_db(path) rescue nil
     cr.database!(path)
   end
   
+  def self.database url
+    uri = URI.parse url
+    path = uri.path
+    uri.path = ''
+    cr = CouchRest.new(uri.to_s)
+    cr.database(path)
+  end
+  
   # list all databases on the server
   def databases
     CouchRest.get "#{@uri}/_all_dbs"
@@ -27,6 +34,7 @@ class CouchRest
   
   # creates the database if it doesn't exist
   def database! name
+    create_db(path) rescue nil
     CouchRest::Database.new(@uri, name)
   end
   

spec/couchrest_spec.rb

@@ -40,7 +40,19 @@ describe CouchRest do
     end
   end
 
-  describe "ensuring a db exists" do
+  describe "easy initializing a database adapter" do
+    it "should be possible without an explicit CouchRest instantiation" do
+      db = CouchRest.database "http://localhost:5984/couchrest-test"
+      db.should be_an_instance_of(CouchRest::Database)
+      db.host.should == "http://localhost:5984"
+    end
+    it "should not create the database automatically" do
+      db = CouchRest.database "http://localhost:5984/couchrest-test"
+      lambda{db.info}.should raise_error(RestClient::ResourceNotFound)      
+    end
+  end
+
+  describe "ensuring the db exists" do
     it "should be super easy" do
       db = CouchRest.database! "http://localhost:5984/couchrest-test-2"
       db.info["db_name"].should == 'couchrest-test-2'