From ce0c9561e9068d5dab9c473f1ca0709b0d222cf1 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 22 Nov 2012 17:26:29 +0200
Subject: Fix issue #118 (manually implementing PR #1832)

---
 system/core/Lang.php                         | 7 ++++---
 system/libraries/Unit_test.php               | 4 ++--
 user_guide_src/source/changelog.rst          | 5 ++++-
 user_guide_src/source/libraries/language.rst | 7 ++++++-
 4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/system/core/Lang.php b/system/core/Lang.php
index 896385134..5d824cee6 100644
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -151,15 +151,16 @@ class CI_Lang {
 	 *
 	 * Fetches a single line of text from the language array
 	 *
-	 * @param	string	$line	Language line key
+	 * @param	string	$line		Language line key
+	 * @param	bool	$log_errors	Whether to log an error message if the line is not found
 	 * @return	string	Translation
 	 */
-	public function line($line = '')
+	public function line($line = '', $log_errors = TRUE)
 	{
 		$value = ($line === '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];
 
 		// Because killer robots like unicorns!
-		if ($value === FALSE)
+		if ($value === FALSE && $log_errors === TRUE)
 		{
 			log_message('error', 'Could not find the language line "'.$line.'"');
 		}
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 842b4aebd..05c7eef78 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -284,11 +284,11 @@ class CI_Unit_test {
 					continue;
 				}
 
-				if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$val))))
+				if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$val), FALSE)))
 				{
 					$val = $line;
 				}
-				$temp[$CI->lang->line('ut_'.$key)] = $val;
+				$temp[$CI->lang->line('ut_'.$key, FALSE)] = $val;
 			}
 
 			$retval[] = $temp;
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index e523c4cab..8de9d2f42 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -251,7 +251,9 @@ Release Date: Not Released
    -  :doc:`Encryption Library <libraries/encryption>` changes include:
 	 -  Added support for hashing algorithms other than SHA1 and MD5.
 	 -  Removed previously deprecated ``sha1()`` method.
-   -  Changed :doc:`Language Library <libraries/language>` method ``load()`` to filter the language name with ``ctype_digit()``.
+   -  :doc:`Language Library <libraries/language>` changes include:
+	 -  Changed method ``load()`` to filter the language name with ``ctype_digit()``.
+	 -  Added an optional second parameter to method ``line()`` to disable error login for line keys that were not found.
    -  :doc:`Profiler Library <general/profiling>` now also displays database object names.
    -  :doc:`Migration Library <libraries/migration>` changes include:
 	 -  Added support for timestamp-based migrations (enabled by default).
@@ -450,6 +452,7 @@ Bug fixes for 3.0
 -  Fixed a bug (#1978) - :doc:`Directory Helper <helpers/directory_helper>` function :php:func:`directory_map()`'s return array didn't make a distinction between directories and file indexes when a directory with a numeric name is present.
 -  Fixed a bug (#777) - :doc:`Loader Library <libraries/loader>` didn't look for helper extensions in added package paths.
 -  Fixed a bug (#18) - :doc:`APC Cache <libraries/caching>` driver didn't (un)serialize data, resulting in failure to store objects.
+-  Fixed a bug (#188) - :doc:`Unit Testing Library <libraries/unit_testing>` filled up logs with error messages for non-existing language keys.
 
 Version 2.1.3
 =============
diff --git a/user_guide_src/source/libraries/language.rst b/user_guide_src/source/libraries/language.rst
index b231f14a3..772f70d0b 100644
--- a/user_guide_src/source/libraries/language.rst
+++ b/user_guide_src/source/libraries/language.rst
@@ -66,9 +66,14 @@ text using this function::
 
 	$this->lang->line('language_key');
 
-Where language_key is the array key corresponding to the line you wish
+Where *language_key* is the array key corresponding to the line you wish
 to show.
 
+You can optionally pass FALSE as the second argument of that method to
+disable error logging, in case you're not sure if the line exists::
+
+	$this->lang->line('misc_key', FALSE);
+
 .. note:: This method simply returns the line. It does not echo it.
 
 Using language lines as form labels
-- 
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