Fix database overflow issue when trying to insert content words

qa-include/db/maxima.php

@@ -48,6 +48,7 @@ $maximaDefaults = array(
 	'QA_DB_MAX_BLOB_FILE_NAME_LENGTH' => 255,
 	'QA_DB_MAX_META_TITLE_LENGTH' => 40,
 	'QA_DB_MAX_META_CONTENT_LENGTH' => 8000,
+	'QA_DB_MAX_WORD_COUNT' => 255, // The field is currently a TINYINT so it shouldn't exceed this value
 
 	// How many records to retrieve for different circumstances. In many cases we retrieve more records than we
 	// end up needing to display once we know the value of an option. Wasteful, but allows one query per page.

qa-include/db/post-create.php

@@ -166,8 +166,12 @@ function qa_db_contentwords_add_post_wordidcounts($postid, $type, $questionid, $
 {
 	if (count($wordidcounts)) {
 		$rowstoadd = array();
-		foreach ($wordidcounts as $wordid => $count)
+		foreach ($wordidcounts as $wordid => $count) {
+			if ($count > QA_DB_MAX_WORD_COUNT) {
+				$count = QA_DB_MAX_WORD_COUNT;
+			}
 			$rowstoadd[] = array($postid, $wordid, $count, $type, $questionid);
+		}
 
 		qa_db_query_sub(
 			'INSERT INTO ^contentwords (postid, wordid, count, type, questionid) VALUES #',