From 980d59332e0f8208dcb27a7b4f754e41158c7dc3 Mon Sep 17 00:00:00 2001
From: uckelman <uckelman@nomic.net>
Date: Sun, 11 Apr 2010 12:54:04 +0000
Subject: Added setMessageIdIfAbsent().

git-svn-id: https://vassalengine.svn.sourceforge.net/svnroot/vassalengine/site-src/trunk@6639 67b53d14-2c14-4ace-a08f-0dab2b34000c
---
 src/Bridge.php      |  8 ++++++++
 test/BridgeTest.php | 21 +++++++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/Bridge.php b/src/Bridge.php
index ad3b6c3..537fb5c 100644
--- a/src/Bridge.php
+++ b/src/Bridge.php
@@ -53,6 +53,14 @@ class Bridge {
     return $row['forum_id'];
   }
 
+  public function setMessageIdIfAbsent($messageId) {
+    $sql = 'INSERT IGNORE INTO posts (message_id) VALUES (' .
+            $this->db->quote($messageId) . ')';
+
+    $count = $this->db->exec($sql);
+    return $count == 1;
+  }
+
   protected function get_exactly_one_row($sql) {
     $result = $this->db->query($sql);
 
diff --git a/test/BridgeTest.php b/test/BridgeTest.php
index b90ae02..309a959 100644
--- a/test/BridgeTest.php
+++ b/test/BridgeTest.php
@@ -18,11 +18,11 @@ class BridgeTest extends PHPUnit_Framework_TestCase {
 
     $this->db->exec(
       'CREATE TABLE posts (' .
-      'post_id MEDIUMINT UNSIGNED NOT NULL, ' .
+      'post_id MEDIUMINT UNSIGNED, ' .
       'message_id VARCHAR(255) NOT NULL, ' .
       'in_reply_to VARCHAR(255), ' .
       'refs BLOB, ' .
-      'PRIMARY KEY (post_id), ' .
+      'UNIQUE KEY (post_id), ' .
       'UNIQUE KEY (message_id))'
     );
 
@@ -141,6 +141,23 @@ class BridgeTest extends PHPUnit_Framework_TestCase {
       array('messages@forums.vassalengine.org', 2, null),
     );
   }
+
+  /**
+   * @dataProvider providerSetMessageIdIfAbsent
+   */
+  public function testSetMessageIdIfAbsent($messageId, $expected, $ex) {
+    if ($ex) $this->setExpectedException($ex);
+    $bridge = new Bridge($this->db);
+    $this->assertEquals($expected, $bridge->setMessageIdIfAbsent($messageId));
+  }
+
+  public function providerSetMessageIdIfAbsent() {
+    return array(
+      array(null, null, 'PHPUnit_Framework_Error'),
+      array('<20100302094228.33F0310091@charybdis.ellipsis.cx>', false, null),
+      array('<10100302094228.33F0310091@charybdis.ellipsis.cx>', true,  null),
+    );
+  }
 }
 
 ?>
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