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add limit to search

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Jeff Becker 2019-03-03 12:51:25 -05:00
parent 41682f1712
commit b4d2de6ec8
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GPG Key ID: F357B3B42F6F9B05
3 changed files with 15 additions and 14 deletions
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4
contrib/backends/srndv2/src/srnd/database.go
View File

@ -323,10 +323,10 @@ type Database interface {
GetPostingStats(granularity, begin, end int64) (PostingStats, error)
// peform search query
SearchQuery(prefix, group, text string, chnl chan PostModel) error
SearchQuery(prefix, group, text string, chnl chan PostModel, limit int) error
// find posts with similar hash
SearchByHash(prefix, group, posthash string, chnl chan PostModel) error
SearchByHash(prefix, group, posthash string, chnl chan PostModel, limit int) error
// get full thread model
GetThreadModel(prefix, root_msgid string) (ThreadModel, error)

5
contrib/backends/srndv2/src/srnd/frontend_http.go
View File

@ -1112,10 +1112,11 @@ func (self *httpFrontend) handle_api_find(wr http.ResponseWriter, r *http.Reques
}
donechnl <- 0
}(wr)
limit := 50
if len(h) > 0 {
self.daemon.database.SearchByHash(self.prefix, g, h, chnl)
self.daemon.database.SearchByHash(self.prefix, g, h, chnl, limit)
} else {
self.daemon.database.SearchQuery(self.prefix, g, s, chnl)
self.daemon.database.SearchQuery(self.prefix, g, s, chnl, limit)
}
chnl <- nil
<-donechnl

20
contrib/backends/srndv2/src/srnd/postgres.go
View File

@ -219,10 +219,10 @@ func (self *PostgresDatabase) prepareStatements() {
GetMessageIDByCIDR: "SELECT message_id FROM ArticlePosts WHERE addr IN ( SELECT encaddr FROM EncryptedAddrs WHERE addr_cidr <<= cidr($1) )",
GetMessageIDByEncryptedIP: "SELECT message_id FROM ArticlePosts WHERE addr = $1",
GetPostsBefore: "SELECT message_id FROM ArticlePosts WHERE time_posted < $1",
SearchQuery_1: "SELECT newsgroup, message_id, ref_id FROM ArticlePosts WHERE message LIKE $1 ORDER BY time_posted DESC",
SearchQuery_2: "SELECT newsgroup, message_id, ref_id FROM ArticlePosts WHERE newsgroup = $1 AND message LIKE $2 ORDER BY time_posted DESC",
SearchByHash_1: "SELECT message_newsgroup, message_id, message_ref_id FROM Articles WHERE message_id_hash LIKE $1 ORDER BY time_obtained DESC",
SearchByHash_2: "SELECT message_newsgroup, message_id, message_ref_id FROM Articles WHERE message_newsgroup = $2 AND message_id_hash LIKE $1 ORDER BY time_obtained DESC",
SearchQuery_1: "SELECT newsgroup, message_id, ref_id FROM ArticlePosts WHERE message LIKE $1 ORDER BY time_posted DESC LIMIT $2",
SearchQuery_2: "SELECT newsgroup, message_id, ref_id FROM ArticlePosts WHERE newsgroup = $1 AND message LIKE $2 ORDER BY time_posted DESC LIMIT $3",
SearchByHash_1: "SELECT message_newsgroup, message_id, message_ref_id FROM Articles WHERE message_id_hash LIKE $1 ORDER BY time_obtained DESC LIMIT $2",
SearchByHash_2: "SELECT message_newsgroup, message_id, message_ref_id FROM Articles WHERE message_newsgroup = $2 AND message_id_hash LIKE $1 ORDER BY time_obtained DESC LIMIT $3",
GetNNTPPostsInGroup: "SELECT message_no, ArticlePosts.message_id, subject, time_posted, ref_id, name, path FROM ArticleNumbers INNER JOIN ArticlePosts ON ArticleNumbers.message_id = ArticlePosts.message_id WHERE ArticlePosts.newsgroup = $1 ORDER BY message_no",
GetCitesByPostHashLike: "SELECT message_id, message_ref_id FROM Articles WHERE message_id_hash LIKE $1",
GetYearlyPostHistory: "WITH times(endtime, begintime) AS ( SELECT CAST(EXTRACT(epoch from i) AS BIGINT) AS endtime, CAST(EXTRACT(epoch from i - interval '1 month') AS BIGINT) AS begintime FROM generate_series(now() - interval '10 year', now(), '1 month'::interval) i ) SELECT begintime, endtime, ( SELECT count(*) FROM ArticlePosts WHERE time_posted > begintime AND time_posted < endtime) FROM times",
@ -1970,14 +1970,14 @@ func (self *PostgresDatabase) GetPostingStats(gran, begin, end int64) (st Postin
return
}
func (self *PostgresDatabase) SearchQuery(prefix, group string, text string, chnl chan PostModel) (err error) {
func (self *PostgresDatabase) SearchQuery(prefix, group string, text string, chnl chan PostModel, limit int) (err error) {
if text != "" && strings.Count(text, "%") == 0 {
text = "%" + text + "%"
var rows *sql.Rows
if group == "" {
rows, err = self.conn.Query(self.stmt[SearchQuery_1], text)
rows, err = self.conn.Query(self.stmt[SearchQuery_1], text, limit)
} else {
rows, err = self.conn.Query(self.stmt[SearchQuery_2], group, text)
rows, err = self.conn.Query(self.stmt[SearchQuery_2], group, text, limit)
}
if err == nil {
for rows.Next() {
@ -1991,15 +1991,15 @@ func (self *PostgresDatabase) SearchQuery(prefix, group string, text string, chn
close(chnl)
return
}
func (self *PostgresDatabase) SearchByHash(prefix, group, text string, chnl chan PostModel) (err error) {
func (self *PostgresDatabase) SearchByHash(prefix, group, text string, chnl chan PostModel, limit int) (err error) {
if text != "" && strings.Count(text, "%") == 0 {
text = "%" + text + "%"
var rows *sql.Rows
if group == "" {
rows, err = self.conn.Query(self.stmt[SearchByHash_1], text)
rows, err = self.conn.Query(self.stmt[SearchByHash_1], text, limit)
} else {
rows, err = self.conn.Query(self.stmt[SearchByHash_2], text, group)
rows, err = self.conn.Query(self.stmt[SearchByHash_2], text, group, limit)
}
if err == nil {
for rows.Next() {