From b2b15a79b53833780c2761291df5049a32807740 Mon Sep 17 00:00:00 2001
From: Brian Simpson <bsimpson63@gmail.com>
Date: Sat, 9 Mar 2013 01:37:00 -0800
Subject: [PATCH] Subreddit by name validator.

---
 r2/r2/lib/validator/validator.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/r2/r2/lib/validator/validator.py b/r2/r2/lib/validator/validator.py
index a66861ec0..ef73d152f 100644
--- a/r2/r2/lib/validator/validator.py
+++ b/r2/r2/lib/validator/validator.py
@@ -623,6 +623,24 @@ class VSubredditName(VRequired):
             except NotFound:
                 return name
 
+
+class VSRByName(Validator):
+    def run(self, sr_name):
+        if not sr_name:
+            self.set_error(errors.BAD_SR_NAME)
+        else:
+            try:
+                sr = Subreddit._by_name(sr_name)
+                return sr
+            except NotFound:
+                self.set_error(errors.SUBREDDIT_NOEXIST)
+
+    def param_docs(self):
+        return {
+            self.param: "subreddit name",
+        }
+
+
 class VSubredditTitle(Validator):
     def run(self, title):
         if not title: