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Added (default) option to search for whole words with forums.

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(SQL regular expressions from David Delgado - thanks!)
This commit is contained in:
moodler
2003-08-14 06:34:56 +00:00
parent ab38fc7ae6
commit 63d99fcb1d
1 changed files with 15 additions and 7 deletions
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mod/forum/lib.php
+15 -7
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@@ -474,7 +474,7 @@ function forum_get_child_posts($parent) {
}
function forum_search_posts($search, $courseid, $page=0, $recordsperpage=50) {
function forum_search_posts($search, $courseid, $page=0, $recordsperpage=50, $wholewords=true) {
/// Returns a list of posts that were found
global $CFG;
@@ -495,11 +495,13 @@ function forum_search_posts($search, $courseid, $page=0, $recordsperpage=50) {
$limit = "LIMIT $recordsperpage,$page";
}
//to allow caseinsensitive search for postgesql
if($CFG->dbtype == "postgres7") {
$LIKE = "ILIKE";
/// Some differences in syntax for PostgreSQL
if ($CFG->dbtype == "postgres7") {
$LIKE = "ILIKE"; // case-insensitive
$REGEXP = "~";
} else {
$LIKE = "LIKE";
$REGEXP = "REGEXP";
}
$messagesearch = "";
@@ -511,12 +513,17 @@ function forum_search_posts($search, $courseid, $page=0, $recordsperpage=50) {
if ($messagesearch) {
$messagesearch .= " AND ";
}
$messagesearch .= " p.message $LIKE '%$searchterm%' ";
if ($subjectsearch) {
$subjectsearch .= " AND ";
}
$subjectsearch .= " p.subject $LIKE '%$searchterm%' ";
if ($wholewords) {
$messagesearch .= " p.message $REGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
$subjectsearch .= " p.subject $REGEXP '(^|[^a-zA-Z0-9])$searchterm([^a-zA-Z0-9]|$)' ";
} else {
$messagesearch .= " p.message $LIKE '%$searchterm%' ";
$subjectsearch .= " p.subject $LIKE '%$searchterm%' ";
}
}
@@ -534,6 +541,7 @@ function forum_search_posts($search, $courseid, $page=0, $recordsperpage=50) {
ORDER BY p.modified DESC $limit");
}
function forum_get_ratings($postid, $sort="u.firstname ASC") {
/// Returns a list of ratings for a particular post - sorted.
global $CFG;