Merge pull request '按领域搜索按小写字母搜索' (#553) from fix-333 into V20211018

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/553
Reviewed-by: lewis <747342561@qq.com>

models/repo_list.go

@@ -331,7 +331,7 @@ func SearchRepositoryCondition(opts *SearchRepoOptions) builder.Cond {
 	}
 	if opts.TopicName != "" {
 		var subQueryCond = builder.NewCond()
-		subQueryCond = subQueryCond.Or(builder.Eq{"topic.name": opts.TopicName})
+		subQueryCond = subQueryCond.Or(builder.Eq{"topic.name": strings.ToLower(opts.TopicName)})
 		subQuery := builder.Select("repo_topic.repo_id").From("repo_topic").
 			Join("INNER", "topic", "topic.id = repo_topic.topic_id").
 			Where(subQueryCond).