mirror of https://gitee.com/answerdev/answer.git
486 lines
13 KiB
Go
486 lines
13 KiB
Go
package repo
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/answerdev/answer/internal/base/data"
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"github.com/answerdev/answer/internal/base/reason"
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"github.com/answerdev/answer/internal/entity"
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"github.com/answerdev/answer/internal/schema"
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"github.com/answerdev/answer/internal/service/search_common"
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"github.com/answerdev/answer/internal/service/unique"
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usercommon "github.com/answerdev/answer/internal/service/user_common"
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"github.com/answerdev/answer/pkg/converter"
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"github.com/answerdev/answer/pkg/obj"
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"github.com/jinzhu/copier"
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"github.com/segmentfault/pacman/errors"
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"xorm.io/builder"
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)
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var (
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q_fields = []string{
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"`question`.`id`",
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"`question`.`id` as `question_id`",
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"`title`",
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"`original_text`",
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"`question`.`created_at`",
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"`user_id`",
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"`vote_count`",
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"`answer_count`",
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"0 as `accepted`",
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"`question`.`status` as `status`",
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"`post_update_time`",
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}
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a_fields = []string{
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"`answer`.`id` as `id`",
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"`question_id`",
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"`question`.`title` as `title`",
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"`answer`.`original_text` as `original_text`",
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"`answer`.`created_at`",
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"`answer`.`user_id` as `user_id`",
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"`answer`.`vote_count` as `vote_count`",
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"0 as `answer_count`",
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"`adopted` as `accepted`",
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"`answer`.`status` as `status`",
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"`answer`.`created_at` as `post_update_time`",
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}
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)
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// searchRepo tag repository
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type searchRepo struct {
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data *data.Data
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userCommon *usercommon.UserCommon
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uniqueIDRepo unique.UniqueIDRepo
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}
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// NewSearchRepo new repository
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func NewSearchRepo(data *data.Data, uniqueIDRepo unique.UniqueIDRepo, userCommon *usercommon.UserCommon) search_common.SearchRepo {
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return &searchRepo{
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data: data,
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uniqueIDRepo: uniqueIDRepo,
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userCommon: userCommon,
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}
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}
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// SearchContents search question and answer data
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func (sr *searchRepo) SearchContents(ctx context.Context, words []string, tagID, userID string, votes int, page, size int, order string) (resp []schema.SearchResp, total int64, err error) {
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var (
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b *builder.Builder
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ub *builder.Builder
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qfs = q_fields
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afs = a_fields
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argsQ = []interface{}{}
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argsA = []interface{}{}
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)
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if order == "relevance" {
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qfs, argsQ = addRelevanceField([]string{"title", "original_text"}, words, qfs)
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afs, argsA = addRelevanceField([]string{"`answer`.`original_text`"}, words, afs)
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}
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b = builder.MySQL().Select(qfs...).From("`question`")
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ub = builder.MySQL().Select(afs...).From("`answer`").
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LeftJoin("`question`", "`question`.id = `answer`.question_id")
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b.Where(builder.Lt{"`question`.`status`": entity.QuestionStatusDeleted})
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ub.Where(builder.Lt{"`question`.`status`": entity.QuestionStatusDeleted}).
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And(builder.Lt{"`answer`.`status`": entity.AnswerStatusDeleted})
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argsQ = append(argsQ, entity.QuestionStatusDeleted)
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argsA = append(argsA, entity.QuestionStatusDeleted, entity.AnswerStatusDeleted)
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for i, word := range words {
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if i == 0 {
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b.Where(builder.Like{"title", word}).
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Or(builder.Like{"original_text", word})
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argsQ = append(argsQ, "%"+word+"%")
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argsQ = append(argsQ, "%"+word+"%")
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ub.Where(builder.Like{"`answer`.original_text", word})
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argsA = append(argsA, "%"+word+"%")
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} else {
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b.Or(builder.Like{"title", word}).
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Or(builder.Like{"original_text", word})
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argsQ = append(argsQ, "%"+word+"%")
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argsQ = append(argsQ, "%"+word+"%")
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ub.Or(builder.Like{"`answer`.original_text", word})
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argsA = append(argsA, "%"+word+"%")
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}
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}
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// check tag
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if tagID != "" {
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b.Join("INNER", "tag_rel", "question.id = tag_rel.object_id").
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Where(builder.Eq{"tag_rel.tag_id": tagID})
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argsQ = append(argsQ, tagID)
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}
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// check user
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if userID != "" {
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b.Where(builder.Eq{"question.user_id": userID})
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ub.Where(builder.Eq{"answer.user_id": userID})
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argsQ = append(argsQ, userID)
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argsA = append(argsA, userID)
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}
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// check vote
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if votes == 0 {
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b.Where(builder.Eq{"question.vote_count": votes})
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ub.Where(builder.Eq{"answer.vote_count": votes})
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argsQ = append(argsQ, votes)
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argsA = append(argsA, votes)
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} else if votes > 0 {
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b.Where(builder.Gte{"question.vote_count": votes})
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ub.Where(builder.Gte{"answer.vote_count": votes})
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argsQ = append(argsQ, votes)
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argsA = append(argsA, votes)
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}
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b = b.Union("all", ub)
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querySql, _, err := builder.MySQL().Select("*").From(b, "t").OrderBy(sr.parseOrder(ctx, order)).Limit(size, page-1).ToSQL()
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if err != nil {
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return
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}
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countSql, _, err := builder.MySQL().Select("count(*) total").From(b, "c").ToSQL()
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if err != nil {
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return
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}
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queryArgs := []interface{}{}
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countArgs := []interface{}{}
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queryArgs = append(queryArgs, querySql)
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queryArgs = append(queryArgs, argsQ...)
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queryArgs = append(queryArgs, argsA...)
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countArgs = append(countArgs, countSql)
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countArgs = append(countArgs, argsQ...)
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countArgs = append(countArgs, argsA...)
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res, err := sr.data.DB.Query(queryArgs...)
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if err != nil {
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return
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}
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tr, err := sr.data.DB.Query(countArgs...)
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if len(tr) != 0 {
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total = converter.StringToInt64(string(tr[0]["total"]))
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}
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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return
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} else {
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resp, err = sr.parseResult(ctx, res)
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return
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}
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}
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// SearchQuestions search question data
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func (sr *searchRepo) SearchQuestions(ctx context.Context, words []string, limitNoAccepted bool, answers, page, size int, order string) (resp []schema.SearchResp, total int64, err error) {
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var (
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qfs = q_fields
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args = []interface{}{}
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)
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if order == "relevance" {
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qfs, args = addRelevanceField([]string{"title", "original_text"}, words, qfs)
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}
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b := builder.MySQL().Select(qfs...).From("question")
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b.Where(builder.Lt{"`question`.`status`": entity.QuestionStatusDeleted})
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args = append(args, entity.QuestionStatusDeleted)
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for i, word := range words {
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if i == 0 {
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b.Where(builder.Like{"title", word}).
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Or(builder.Like{"original_text", word})
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args = append(args, "%"+word+"%")
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args = append(args, "%"+word+"%")
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} else {
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b.Or(builder.Like{"original_text", word})
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args = append(args, "%"+word+"%")
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}
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}
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// check need filter has not accepted
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if limitNoAccepted {
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b.And(builder.Eq{"accepted_answer_id": 0})
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args = append(args, 0)
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}
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if answers == 0 {
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b.And(builder.Eq{"answer_count": 0})
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args = append(args, 0)
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} else if answers > 0 {
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b.And(builder.Gte{"answer_count": answers})
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args = append(args, answers)
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}
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queryArgs := []interface{}{}
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countArgs := []interface{}{}
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querySql, _, err := b.OrderBy(sr.parseOrder(ctx, order)).Limit(size, page-1).ToSQL()
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if err != nil {
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return
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}
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countSql, _, err := builder.MySQL().Select("count(*) total").From(b, "c").ToSQL()
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if err != nil {
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return
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}
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queryArgs = append(queryArgs, querySql)
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queryArgs = append(queryArgs, args...)
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countArgs = append(countArgs, countSql)
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countArgs = append(countArgs, args...)
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res, err := sr.data.DB.Query(queryArgs...)
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if err != nil {
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return
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}
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tr, err := sr.data.DB.Query(countArgs...)
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if err != nil {
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return
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}
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if len(tr) != 0 {
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total = converter.StringToInt64(string(tr[0]["total"]))
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}
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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return
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}
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resp, err = sr.parseResult(ctx, res)
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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}
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return
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}
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// SearchAnswers search answer data
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func (sr *searchRepo) SearchAnswers(ctx context.Context, words []string, limitAccepted bool, questionID string, page, size int, order string) (resp []schema.SearchResp, total int64, err error) {
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var (
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afs = a_fields
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args = []interface{}{}
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)
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if order == "relevance" {
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afs, args = addRelevanceField([]string{"`answer`.`original_text`"}, words, afs)
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}
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b := builder.MySQL().Select(afs...).From("`answer`").
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LeftJoin("`question`", "`question`.id = `answer`.question_id")
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b.Where(builder.Lt{"`question`.`status`": entity.QuestionStatusDeleted}).
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And(builder.Lt{"`answer`.`status`": entity.AnswerStatusDeleted})
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args = append(args, entity.QuestionStatusDeleted, entity.AnswerStatusDeleted)
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for i, word := range words {
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if i == 0 {
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b.Where(builder.Like{"`answer`.original_text", word})
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args = append(args, "%"+word+"%")
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} else {
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b.Or(builder.Like{"`answer`.original_text", word})
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args = append(args, "%"+word+"%")
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}
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}
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if limitAccepted {
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b.Where(builder.Eq{"adopted": schema.Answer_Adopted_Enable})
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args = append(args, schema.Answer_Adopted_Enable)
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}
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if questionID != "" {
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b.Where(builder.Eq{"question_id": questionID})
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args = append(args, questionID)
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}
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queryArgs := []interface{}{}
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countArgs := []interface{}{}
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querySql, _, err := b.OrderBy(sr.parseOrder(ctx, order)).Limit(size, page-1).ToSQL()
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if err != nil {
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return
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}
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countSql, _, err := builder.MySQL().Select("count(*) total").From(b, "c").ToSQL()
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if err != nil {
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return
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}
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queryArgs = append(queryArgs, querySql)
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queryArgs = append(queryArgs, args...)
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countArgs = append(countArgs, countSql)
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countArgs = append(countArgs, args...)
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res, err := sr.data.DB.Query(queryArgs...)
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if err != nil {
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return
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}
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tr, err := sr.data.DB.Query(countArgs...)
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if err != nil {
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return
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}
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total = converter.StringToInt64(string(tr[0]["total"]))
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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return
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}
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resp, err = sr.parseResult(ctx, res)
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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}
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return
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}
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func (sr *searchRepo) parseOrder(ctx context.Context, order string) (res string) {
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switch order {
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case "newest":
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res = "created_at desc"
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case "active":
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res = "post_update_time desc"
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case "score":
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res = "vote_count desc"
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case "relevance":
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res = "relevance desc"
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default:
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res = "created_at desc"
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}
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return
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}
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func (sr *searchRepo) parseResult(ctx context.Context, res []map[string][]byte) (resp []schema.SearchResp, err error) {
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for _, r := range res {
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var (
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objectKey,
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status string
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tags []schema.TagResp
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tagsEntity []entity.Tag
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object schema.SearchObject
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)
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objectKey, err = obj.GetObjectTypeStrByObjectID(string(r["id"]))
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if err != nil {
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continue
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}
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tp, _ := time.ParseInLocation("2006-01-02 15:04:05", string(r["created_at"]), time.Local)
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// get user info
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userInfo, _, e := sr.userCommon.GetUserBasicInfoByID(ctx, string(r["user_id"]))
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if e != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(e).WithStack()
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return
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}
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// get tags
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err = sr.data.DB.
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Select("`display_name`,`slug_name`,`main_tag_slug_name`").
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Table("tag").
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Join("INNER", "tag_rel", "tag.id = tag_rel.tag_id").
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Where(builder.Eq{"tag_rel.object_id": r["question_id"]}).
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And(builder.Eq{"tag_rel.status": entity.TagRelStatusAvailable}).
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Find(&tagsEntity)
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if err != nil {
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err = errors.InternalServer(reason.DatabaseError).WithError(err).WithStack()
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return
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}
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_ = copier.Copy(&tags, tagsEntity)
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switch objectKey {
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case "question":
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for k, v := range entity.CmsQuestionSearchStatus {
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if v == converter.StringToInt(string(r["status"])) {
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status = k
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break
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}
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}
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case "answer":
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for k, v := range entity.CmsAnswerSearchStatus {
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if v == converter.StringToInt(string(r["status"])) {
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status = k
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break
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}
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}
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}
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object = schema.SearchObject{
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ID: string(r["id"]),
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Title: string(r["title"]),
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Excerpt: cutOutParsedText(string(r["original_text"])),
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CreatedAtParsed: tp.Unix(),
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UserInfo: userInfo,
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Tags: tags,
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VoteCount: converter.StringToInt(string(r["vote_count"])),
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Accepted: string(r["accepted"]) == "2",
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AnswerCount: converter.StringToInt(string(r["answer_count"])),
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StatusStr: status,
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}
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resp = append(resp, schema.SearchResp{
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ObjectType: objectKey,
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Object: object,
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})
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}
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return
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}
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// userBasicInfoFormat
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func (sr *searchRepo) userBasicInfoFormat(ctx context.Context, dbinfo *entity.User) *schema.UserBasicInfo {
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return &schema.UserBasicInfo{
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ID: dbinfo.ID,
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Username: dbinfo.Username,
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Rank: dbinfo.Rank,
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DisplayName: dbinfo.DisplayName,
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Avatar: dbinfo.Avatar,
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Website: dbinfo.Website,
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Location: dbinfo.Location,
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IpInfo: dbinfo.IPInfo,
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}
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}
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func cutOutParsedText(parsedText string) string {
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parsedText = strings.TrimSpace(parsedText)
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idx := strings.Index(parsedText, "\n")
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if idx >= 0 {
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parsedText = parsedText[0:idx]
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}
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return parsedText
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}
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func addRelevanceField(search_fields, words, fields []string) (res []string, args []interface{}) {
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var relevanceRes = []string{}
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args = []interface{}{}
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for _, search_field := range search_fields {
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var (
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relevance = "(LENGTH(" + search_field + ") - LENGTH(%s))"
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replacement = "REPLACE(%s, ?, '')"
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replace_field = search_field
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replaced string
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argsField = []interface{}{}
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)
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res = fields
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for i, word := range words {
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if i == 0 {
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argsField = append(argsField, word)
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replaced = fmt.Sprintf(replacement, replace_field)
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} else {
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argsField = append(argsField, word)
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replaced = fmt.Sprintf(replacement, replaced)
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}
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}
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args = append(args, argsField...)
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relevance = fmt.Sprintf(relevance, replaced)
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relevanceRes = append(relevanceRes, relevance)
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}
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res = append(res, "("+strings.Join(relevanceRes, " + ")+") as relevance")
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return
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}
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