Function TestJoinConds

tests/joins_test.go:61–113

(t *testing.T)

}

func TestJoinConds(t *testing.T) {
	user := *GetUser("joins-conds", Config{Account: true, Pets: 3})
	DB.Save(&user)

	var users1 []User
	DB.Joins("inner join pets on pets.user_id = users.id").Where("users.name = ?", user.Name).Find(&users1)
	if len(users1) != 3 {
		t.Errorf("should find two users using left join, but got %v", len(users1))
	}

	var users2 []User
	DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = ?", user.Pets[0].Name).Where("users.name = ?", user.Name).First(&users2)
	if len(users2) != 1 {
		t.Errorf("should find one users using left join with conditions, but got %v", len(users2))
	}

	var users3 []User
	DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = ?", user.Pets[0].Name).Joins("join accounts on accounts.user_id = users.id AND accounts.number = ?", user.Account.Number).Where("users.name = ?", user.Name).First(&users3)
	if len(users3) != 1 {
		t.Errorf("should find one users using multiple left join conditions, but got %v", len(users3))
	}

	var users4 []User
	DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = ?", user.Pets[0].Name).Joins("join accounts on accounts.user_id = users.id AND accounts.number = ?", user.Account.Number+"non-exist").Where("users.name = ?", user.Name).First(&users4)
	if len(users4) != 0 {
		t.Errorf("should find no user when searching with unexisting credit card, but got %v", len(users4))
	}

	var users5 []User
	db5 := DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = ?", user.Pets[0].Name).Joins("join accounts on accounts.user_id = users.id AND accounts.number = ?", user.Account.Number).Where(User{Model: gorm.Model{ID: 1}}).Where(Account{Model: gorm.Model{ID: 1}}).Not(Pet{Model: gorm.Model{ID: 1}}).Find(&users5)
	if db5.Error != nil {
		t.Errorf("Should not raise error for join where identical fields in different tables. Error: %s", db5.Error.Error())
	}

	var users6 []User
	DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = @Name", user.Pets[0]).Where("users.name = ?", user.Name).First(&users6)
	if len(users6) != 1 {
		t.Errorf("should find one users using left join with conditions, but got %v", len(users6))
	}

	dryDB := DB.Session(&gorm.Session{DryRun: true})
	stmt := dryDB.Joins("left join pets on pets.user_id = users.id AND pets.name = ?", user.Pets[0].Name).Joins("join accounts on accounts.user_id = users.id AND accounts.number = ?", user.Account.Number).Where(User{Model: gorm.Model{ID: 1}}).Where(Account{Model: gorm.Model{ID: 1}}).Not(Pet{Model: gorm.Model{ID: 1}}).Find(&users5).Statement

	if !regexp.MustCompile("SELECT .* FROM .users. left join pets.*join accounts.*").MatchString(stmt.SQL.String()) {
		t.Errorf("joins should be ordered, but got %v", stmt.SQL.String())
	}

	iv := DB.Table(`table_invoices`).Select(`seller, SUM(total) as total, SUM(paid) as paid, SUM(balance) as balance`).Group(`seller`)
	stmt = dryDB.Table(`table_employees`).Select(`id, name, iv.total, iv.paid, iv.balance`).Joins(`LEFT JOIN (?) AS iv ON iv.seller = table_employees.id`, iv).Scan(&user).Statement
	if !regexp.MustCompile("SELECT id, name, iv.total, iv.paid, iv.balance FROM .table_employees. LEFT JOIN \\(SELECT seller, SUM\\(total\\) as total, SUM\\(paid\\) as paid, SUM\\(balance\\) as balance FROM .table_invoices. GROUP BY .seller.\\) AS iv ON iv.seller = table_employees.id").MatchString(stmt.SQL.String()) {
		t.Errorf("joins should be ordered, but got %v", stmt.SQL.String())
	}
}

func TestJoinOn(t *testing.T) {
	user := *GetUser("joins-on", Config{Pets: 2})