1. Added core_compress_API.php which provides optional support for co…

…mpression.

This option improves performance but it is OFF by default since it requires PHP 4.0.4.
2. Make use of the compression APIs in View Bug Advanced, View Bug Simple,
and View Bugs.  More pages will be integrated later.
3. Disabled the debug timer (left the normal time).  We should avoid leaving debugging
code committed, since some people make use of the latest CVS and hence it
would be good to avoid needing them to change in the code.
4. In the view bugs, a select statement was executed for each bug to retrieve
the latest modification time for the bugnotes.  Disabled the execution of this
query in case the number of bugs is 0.


git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1098 f5dc347c-c33d-0410-90a0-b07cc1902cb9

core_API.php

@@ -85,5 +85,6 @@
 	require( 'core_proj_user_API.php' );
 	require( 'core_category_API.php' );
 	require( 'core_version_API.php' );
+	require( 'core_compress_API.php' );
 	# --------------------
 ?>

core_compress_API.php

@@ -0,0 +1,25 @@
+<?php
+
+# Starts the buffering/compression (only if the compression option is ON)
+# This method should be called after all possible re-directs and access
+# level checks.
+function start_compression() {
+	global $g_compress_html;
+
+	if ( ON == $g_compress_html ) {
+		ob_implicit_flush( 0 );
+		ob_start( 'ob_gzhandler' );
+	}
+}
+
+# Stop buffering and flush buffer contents.
+function stop_compression() {
+	global $g_compress_html;
+
+	if ( ON == $g_compress_html ) {
+		ob_end_flush();
+		ob_implicit_flush();
+	}
+}
+
+?>

core_timer_API.php

@@ -13,7 +13,7 @@
 	# Charles Killian, modified by Kenzaburo Ito
 
 	# set to ON if you want to see debug level timings
-	$g_debug_timer = ON;
+	$g_debug_timer = OFF;
 
 	# USAGE: set #debug_timer to ON and just call mark_time( 'token name' );
 	# where 'token name' is descriptive of what is happening at that point

doc/ChangeLog

@@ -56,6 +56,7 @@ Mantis
  * Added support for private bugnotes.
  * Enhanced the admin_upgrade.php script, and supported auto-generation of SQL files.
  * In the view bugs, when all projects is selected the project name is now displayed in smaller font over the category.
+ * Added support for optional compression of html output ($g_compress_html).  This option is OFF by default since it requires PHP 4.04.
 
 2002.05.19  -  0.17.3
 

view_all_bug_page.php

@@ -28,6 +28,8 @@
 	check_varset( $f_search, false );
 	check_varset( $f_page_number, 1 );
 
+	start_compression();
+
 	# Load preferences
 	$f_show_category 		= $t_setting_arr[1];
 	$f_show_severity	 	= $t_setting_arr[2];
@@ -264,3 +266,6 @@
 <?php include( $g_view_all_include_file ) ?>
 
 <?php print_page_bot1( __FILE__ ) ?>
+<?php
+	stop_compression();
+?>

view_all_inc.php

@@ -221,7 +221,6 @@
 		$v_summary = string_display( $v_summary );
 		$t_last_updated = date( $g_short_date_format, $v_last_updated );
 
-
 		# choose color based on status
 		$status_color = get_status_color( $v_status );
 
@@ -231,14 +230,15 @@
 		# grab the project name
 		$project_name = get_project_field( $v_project_id, 'name' );
 
-		$query = "SELECT UNIX_TIMESTAMP(last_modified) as last_modified
-				FROM $g_mantis_bugnote_table
-				WHERE bug_id='$v_id'
-				ORDER BY last_modified DESC
-				LIMIT 1";
-		$res2 = db_query( $query );
-		$v_bugnote_updated = db_result( $res2, 0, 0 );
-
+		if ( $bugnote_count > 0 ) {
+			$query = "SELECT UNIX_TIMESTAMP(last_modified) as last_modified
+					FROM $g_mantis_bugnote_table
+					WHERE bug_id='$v_id'
+					ORDER BY last_modified DESC
+					LIMIT 1";
+			$res2 = db_query( $query );
+			$v_bugnote_updated = db_result( $res2, 0, 0 );
+		}
 ?>
 <tr>
 	<?php	if ( access_level_check_greater_or_equal( $g_bug_move_access_level ) ) { ?>
@@ -358,4 +358,4 @@
 ?>
 </div>
 
-<?php print_status_colors() ?>
+<?php print_status_colors() ?>

view_bug_advanced_page.php

@@ -39,6 +39,8 @@
 	$v2_description 			= string_display( $v2_description );
 	$v2_steps_to_reproduce 		= string_display( $v2_steps_to_reproduce );
 	$v2_additional_information 	= string_display( $v2_additional_information );
+
+	start_compression();
 ?>
 <?php print_page_top1() ?>
 <?php print_page_top2() ?>
@@ -446,3 +448,4 @@
 	}
 ?>
 <?php print_page_bot1( __FILE__ ) ?>
+<?php stop_compression(); ?>

view_bug_page.php

@@ -39,6 +39,8 @@
 	$v2_description 			= string_display( $v2_description );
 	$v2_steps_to_reproduce 		= string_display( $v2_steps_to_reproduce );
 	$v2_additional_information 	= string_display( $v2_additional_information );
+
+	start_compression();
 ?>
 <?php print_page_top1() ?>
 <?php print_page_top2() ?>
@@ -346,4 +348,5 @@
 		include( $g_history_include_file );
 	}
 ?>
-<?php print_page_bot1( __FILE__ ) ?>
+<?php print_page_bot1( __FILE__ ) ?>
+<?php stop_compression(); ?>