gogjango/gjango

package repository

import (
    "github.com/go-pg/pg/v9/orm"
    "go.uber.org/zap"

    "github.com/gogjango/gjango/apperr"
    "github.com/gogjango/gjango/model"
)

const notDeleted = "deleted_at is null"

// NewUserRepo returns a new UserRepo instance
func NewUserRepo(db orm.DB, log *zap.Logger) *UserRepo {
    return &UserRepo{db, log}
}

// UserRepo is the client for our user model
type UserRepo struct {
    db  orm.DB
    log *zap.Logger
}

// View returns single user by ID
func (u *UserRepo) View(id int) (*model.User, error) {
    var user = new(model.User)
    sql := `SELECT "user".*, "role"."id" AS "role__id", "role"."access_level" AS "role__access_level", "role"."name" AS "role__name" 
    FROM "users" AS "user" LEFT JOIN "roles" AS "role" ON "role"."id" = "user"."role_id" 
    WHERE ("user"."id" = ? and deleted_at is null)`
    _, err := u.db.QueryOne(user, sql, id)
    if err != nil {
        u.log.Warn("UserRepo Error", zap.Error(err))
        return nil, apperr.NotFound
    }
    return user, nil
}

// FindByUsername queries for a single user by username
func (u *UserRepo) FindByUsername(username string) (*model.User, error) {
    user := new(model.User)
    sql := `SELECT "user".*, "role"."id" AS "role__id", "role"."access_level" AS "role__access_level", "role"."name" AS "role__name" 
    FROM "users" AS "user" LEFT JOIN "roles" AS "role" ON "role"."id" = "user"."role_id" 
    WHERE ("user"."username" = ? and deleted_at is null)`
    _, err := u.db.QueryOne(user, sql, username)
    if err != nil {
        u.log.Warn("UserRepo Error", zap.String("Error:", err.Error()))
        return nil, apperr.NotFound
    }
    return user, nil
}

// FindByEmail queries for a single user by email
func (u *UserRepo) FindByEmail(email string) (*model.User, error) {
    user := new(model.User)
    sql := `SELECT "user".*, "role"."id" AS "role__id", "role"."access_level" AS "role__access_level", "role"."name" AS "role__name" 
    FROM "users" AS "user" LEFT JOIN "roles" AS "role" ON "role"."id" = "user"."role_id" 
    WHERE ("user"."email" = ? and deleted_at is null)`
    _, err := u.db.QueryOne(user, sql, email)
    if err != nil {
        u.log.Warn("UserRepo Error", zap.String("Error:", err.Error()))
        return nil, apperr.NotFound
    }
    return user, nil
}

// FindByMobile queries for a single user by mobile (and country code)
func (u *UserRepo) FindByMobile(countryCode, mobile string) (*model.User, error) {
    user := new(model.User)
    sql := `SELECT "user".*, "role"."id" AS "role__id", "role"."access_level" AS "role__access_level", "role"."name" AS "role__name" 
    FROM "users" AS "user" LEFT JOIN "roles" AS "role" ON "role"."id" = "user"."role_id" 
    WHERE ("user"."country_code" = ? and "user"."mobile" = ? and deleted_at is null)`
    _, err := u.db.QueryOne(user, sql, countryCode, mobile)
    if err != nil {
        u.log.Warn("UserRepo Error", zap.String("Error:", err.Error()))
        return nil, apperr.NotFound
    }
    return user, nil
}

// FindByToken queries for single user by token
func (u *UserRepo) FindByToken(token string) (*model.User, error) {
    var user = new(model.User)
    sql := `SELECT "user".*, "role"."id" AS "role__id", "role"."access_level" AS "role__access_level", "role"."name" AS "role__name" 
    FROM "users" AS "user" LEFT JOIN "roles" AS "role" ON "role"."id" = "user"."role_id" 
    WHERE ("user"."token" = ? and deleted_at is null)`
    _, err := u.db.QueryOne(user, sql, token)
    if err != nil {
        u.log.Warn("UserRepo Error", zap.String("Error:", err.Error()))
        return nil, apperr.NotFound
    }
    return user, nil
}

// UpdateLogin updates last login and refresh token for user
func (u *UserRepo) UpdateLogin(user *model.User) error {
    user.UpdateLastLogin() // update user object's last_login field
    _, err := u.db.Model(user).Column("last_login", "token").WherePK().Update()
    if err != nil {
        u.log.Warn("UserRepo Error", zap.Error(err))
    }
    return err
}

// List returns list of all users retreivable for the current user, depending on role
func (u *UserRepo) List(qp *model.ListQuery, p *model.Pagination) ([]model.User, error) {
    var users []model.User
    q := u.db.Model(&users).Column("user.*", "Role").Limit(p.Limit).Offset(p.Offset).Where(notDeleted).Order("user.id desc")
    if qp != nil {
        q.Where(qp.Query, qp.ID)
    }
    if err := q.Select(); err != nil {
        u.log.Warn("UserDB Error", zap.Error(err))
        return nil, err
    }
    return users, nil
}

// Update updates user's contact info
func (u *UserRepo) Update(user *model.User) (*model.User, error) {
    _, err := u.db.Model(user).Column("first_name",
        "last_name", "country_code", "mobile", "address", "active", "verified", "updated_at").WherePK().Update()
    if err != nil {
        u.log.Warn("UserDB Error", zap.Error(err))
    }
    return user, err
}

// Delete sets deleted_at for a user
func (u *UserRepo) Delete(user *model.User) error {
    user.Delete()
    _, err := u.db.Model(user).Column("deleted_at").WherePK().Update()
    if err != nil {
        u.log.Warn("UserRepo Error", zap.Error(err))
    }
    return err
}