+ // very short queries
+ if (strlen($search_query) < 4)
+ {
+ $search_cond = "(title LIKE '%$search_query%'
+ OR description LIKE '%$search_query%'
+ OR tags LIKE '%$search_query%')";
+ $relevance = "( 0.5 * (title LIKE '%git%')
+ + 0.2 * (description LIKE '%git%')
+ + 0.3 * (tags LIKE '%git%') ) AS relevance";
+ }
+ // natural language mode
+ else if (! $this->is_advanced_search_query($search_query))
+ {
+ $search_cond = "MATCH (title, description, tags)
+ AGAINST ('$search_query')";
+ $relevance = "$search_cond AS relevance";
+ }
+ // boolean mode
+ else
+ {
+ $against = "AGAINST ('$search_query' IN BOOLEAN MODE)";
+ $search_cond = "MATCH (title, description, tags)
+ $against";
+ $relevance = "( (0.5 * (MATCH(title) $against))
+ + (0.3 * (MATCH(tags) $against))
+ + (0.2 * (MATCH(description) $against)) ) AS relevance";
+ }
+
+ if ($count === 0)
+ {
+ $selected_columns = "COUNT(*) count";
+ $order = "";
+ $limit = "";
+ }
+ else
+ {
+ // TODO select data, description if details are needed
+ $selected_columns = "id, name, title, duration, user_id, views,
+ thumbs_count, default_thumb,
+ (views + likes - dislikes) AS score,
+ $relevance";
+ $order = "ORDER BY relevance DESC, score DESC";
+ $limit = "LIMIT $offset, $count";
+ }
+
+ if ($category_id !== NULL)
+ $category_cond = "category_id = '$category_id' AND ";
+ else
+ $category_cond = "";