feat 修改usn类型为string

internal/dao/repository/questions.go

@@ -0,0 +1,83 @@
+package repository
+
+import (
+	"context"
+	"git.hlsq.asia/mmorpg/service-common/db/mysql"
+	"git.hlsq.asia/mmorpg/service-common/db/redis"
+	"git.hlsq.asia/mmorpg/service-common/utils"
+	"git.hlsq.asia/mmorpg/service-user/internal/dao/model"
+	"git.hlsq.asia/mmorpg/service-user/internal/dao/query"
+	"gorm.io/gorm"
+	"time"
+)
+
+type QuestionDao struct {
+	ctx   context.Context
+	query *query.Query
+	cache *redis.CacheClient
+}
+
+func NewQuestionDao(ctx context.Context, cache ...*redis.CacheClient) *QuestionDao {
+	dao := &QuestionDao{
+		ctx:   ctx,
+		query: query.Use(mysql.GetDB(dbName)),
+	}
+	if len(cache) > 0 {
+		dao.cache = cache[0]
+	}
+	return dao
+}
+
+func (d *QuestionDao) Create(question *model.Question) error {
+	err := d.query.Question.WithContext(d.ctx).
+		Create(question)
+	return err
+}
+
+func (d *QuestionDao) FindByRandom() (*model.Question, error) {
+	count, err := d.query.Question.WithContext(d.ctx).Count()
+	if err != nil {
+		return nil, err
+	}
+	if count == 0 {
+		return nil, gorm.ErrRecordNotFound
+	}
+	first, err := d.query.Question.WithContext(d.ctx).
+		Offset(utils.RandInt(0, int(count-1))).
+		First()
+	if err != nil {
+		return nil, err
+	}
+	return first, nil
+}
+
+func (d *QuestionDao) FindBySn(sn string) (*model.Question, error) {
+	if d.cache != nil {
+		var question model.Question
+		if ok := d.cache.Get(d.ctx, keyCacheBySn(sn, question.TableName()), &question); ok {
+			return &question, nil
+		}
+	}
+	first, err := d.query.Question.WithContext(d.ctx).
+		Where(d.query.Question.Sn.Eq(sn)).
+		First()
+	if err != nil {
+		return nil, err
+	}
+	if d.cache != nil {
+		d.cache.Set(d.ctx, keyCacheBySn(sn, first.TableName()), first, 5*time.Minute)
+	}
+	return first, nil
+}
+
+func (d *QuestionDao) FindCategory() ([]string, error) {
+	var categories []string
+	err := d.query.Question.WithContext(d.ctx).
+		Select(d.query.Question.Category).
+		Distinct().
+		Scan(&categories)
+	if err != nil {
+		return nil, err
+	}
+	return categories, nil
+}