Issue #11405: Add link to bugnote revisions within bugnote display

For bugnotes that have been edited, revisions may exist. If they do (ie.
they haven't been dropped by someone with permission to do so) then we
can display a count of revisions and a link to the page where users can
view previous revisions of a bugnote.

bugnote_view_inc.php

@@ -26,6 +26,7 @@
  * @uses access_api.php
  * @uses authentication_api.php
  * @uses bug_api.php
+ * @uses bug_revision_api.php
  * @uses bugnote_api.php
  * @uses collapse_api.php
  * @uses config_api.php
@@ -44,6 +45,7 @@
 require_api( 'access_api.php' );
 require_api( 'authentication_api.php' );
 require_api( 'bug_api.php' );
+require_api( 'bug_revision_api.php' );
 require_api( 'bugnote_api.php' );
 require_api( 'collapse_api.php' );
 require_api( 'config_api.php' );
@@ -165,7 +167,12 @@
 		<span class="small"><?php echo date( $t_normal_date_format, $t_bugnote->date_submitted ); ?></span><br />
 		<?php
 		if ( $t_bugnote_modified ) {
-			echo '<span class="small">' . lang_get( 'edited_on') . lang_get( 'word_separator' ) . date( $t_normal_date_format, $t_bugnote->last_modified ) . '</span><br />';
+			echo '<span class="small">' . lang_get( 'last_edited') . lang_get( 'word_separator' ) . date( $t_normal_date_format, $t_bugnote->last_modified ) . '</span><br />';
+			$t_revision_count = bug_revision_count( $f_bug_id, REV_BUGNOTE, $t_bugnote->id );
+			if ( $t_revision_count >= 1) {
+				$t_view_num_revisions_text = sprintf( lang_get( 'view_num_revisions' ), $t_revision_count );
+				echo '<span class="small"><a href="bug_revision_view_page.php?bugnote_id=' . $t_bugnote->id . '">' . $t_view_num_revisions_text . '</a></span><br />';
+			}
 		}
 		?>
 		<br /><div class="small">

lang/strings_english.txt

@@ -653,6 +653,7 @@ $s_updating_bug_simple_title = 'Updating Issue Information';
 
 # bug_view*
 $s_view_revisions = 'View Revisions';
+$s_view_num_revisions = 'View %1$d revisions';
 $s_revision = 'Revision';
 $s_revision_by = '%1$s by %2$s';
 $s_revision_drop = 'Drop';
@@ -683,7 +684,7 @@ $s_closed_bug_button = 'Close Issue';
 
 # bugnote_update.php
 $s_bugnote_updated_msg = 'Note has been successfully updated...';
-$s_edited_on = 'edited on:';
+$s_last_edited = 'Last edited:';
 
 # file_api.php
 $s_hide_content = 'Hide Content';

print_all_bug_page_word.php

@@ -534,7 +534,7 @@
 			<td class="print">
 				<?php echo $t_date_submitted ?>&nbsp;&nbsp;&nbsp;
 				<?php if ( $t_bugnote->date_submitted != $t_bugnote->last_modified ) {
-					echo '<br />(' . lang_get( 'edited_on') . lang_get( 'word_separator' ) . $t_last_modified . ')';
+					echo '<br />(' . lang_get( 'last_edited') . lang_get( 'word_separator' ) . $t_last_modified . ')';
 				} ?>
 			</td>
 		</tr>

print_bugnote_inc.php

@@ -134,7 +134,7 @@
 			<td class="print">
 				<?php echo $v3_date_submitted ?>&nbsp;&nbsp;&nbsp;
 				<?php if ( $v3_date_submitted != $v3_last_modified ) {
-					echo '<br />(' . lang_get( 'edited_on') . lang_get( 'word_separator' ) . $v3_last_modified . ')';
+					echo '<br />(' . lang_get( 'last_edited') . lang_get( 'word_separator' ) . $v3_last_modified . ')';
 				} ?>
 			</td>
 		</tr>