first commit

internal/repository/user/repository.go

@@ -0,0 +1,61 @@
+// Package user 提供用户数据访问。所有查询强制按 mini_id 过滤，
+// 从数据层保证各小程序用户体系相互独立。
+package user
+
+import (
+	"context"
+
+	"gorm.io/gorm"
+
+	"portal-mini-go/internal/model"
+	"portal-mini-go/internal/pkg/errors"
+)
+
+type Repository struct {
+	db *gorm.DB
+}
+
+func New(db *gorm.DB) *Repository { return &Repository{db: db} }
+
+// UpsertByOpenID 按 mini_id + openid 创建或返回已有用户。
+func (r *Repository) UpsertByOpenID(ctx context.Context, miniID uint64, openID, unionID, nickname, avatar string) (*model.User, error) {
+	var u model.User
+	err := r.db.WithContext(ctx).
+		Where("mini_id = ? AND openid = ?", miniID, openID).
+		Attrs(model.User{MiniID: miniID, OpenID: openID, UnionID: unionID, Nickname: nickname, Avatar: avatar}).
+		FirstOrCreate(&u).Error
+	if err != nil {
+		return nil, errors.Wrap(50000, "upsert user", err)
+	}
+	return &u, nil
+}
+
+// GetByID 按 mini_id + id 查询用户，跨小程序查询直接返回未找到。
+func (r *Repository) GetByID(ctx context.Context, miniID uint64, id uint64) (*model.User, error) {
+	var u model.User
+	err := r.db.WithContext(ctx).
+		Where("mini_id = ? AND id = ?", miniID, id).
+		First(&u).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, errors.ErrNotFound
+		}
+		return nil, errors.Wrap(50000, "query user", err)
+	}
+	return &u, nil
+}
+
+// UpdateProfile 更新用户资料，限定在 mini_id 范围内。
+func (r *Repository) UpdateProfile(ctx context.Context, miniID uint64, id uint64, nickname, avatar string) error {
+	res := r.db.WithContext(ctx).
+		Model(&model.User{}).
+		Where("mini_id = ? AND id = ?", miniID, id).
+		Updates(map[string]interface{}{"nickname": nickname, "avatar": avatar})
+	if res.Error != nil {
+		return errors.Wrap(50000, "update user", res.Error)
+	}
+	if res.RowsAffected == 0 {
+		return errors.ErrNotFound
+	}
+	return nil
+}