forked from go-gorm/gorm
/
joins_test.go
253 lines (197 loc) · 9.24 KB
/
joins_test.go
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package tests_test
import (
"regexp"
"sort"
"testing"
"gorm.io/gorm"
. "gorm.io/gorm/utils/tests"
)
func TestJoins(t *testing.T) {
user := *GetUser("joins-1", Config{Company: true, Manager: true, Account: true, NamedPet: false})
DB.Create(&user)
var user2 User
if err := DB.Joins("NamedPet").Joins("Company").Joins("Manager").Joins("Account").First(&user2, "users.name = ?", user.Name).Error; err != nil {
t.Fatalf("Failed to load with joins, got error: %v", err)
}
CheckUser(t, user2, user)
}
func TestJoinsForSlice(t *testing.T) {
users := []User{
*GetUser("slice-joins-1", Config{Company: true, Manager: true, Account: true}),
*GetUser("slice-joins-2", Config{Company: true, Manager: true, Account: true}),
*GetUser("slice-joins-3", Config{Company: true, Manager: true, Account: true}),
}
DB.Create(&users)
var userIDs []uint
for _, user := range users {
userIDs = append(userIDs, user.ID)
}
var users2 []User
if err := DB.Joins("Company").Joins("Manager").Joins("Account").Find(&users2, "users.id IN ?", userIDs).Error; err != nil {
t.Fatalf("Failed to load with joins, got error: %v", err)
} else if len(users2) != len(users) {
t.Fatalf("Failed to load join users, got: %v, expect: %v", len(users2), len(users))
}
sort.Slice(users2, func(i, j int) bool {
return users2[i].ID > users2[j].ID
})
sort.Slice(users, func(i, j int) bool {
return users[i].ID > users[j].ID
})
for idx, user := range users {
CheckUser(t, user, users2[idx])
}
}
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})
DB.Save(&user)
var user1 User
onQuery := DB.Where(&Pet{Name: "joins-on_pet_1"})
if err := DB.Joins("NamedPet", onQuery).Where("users.name = ?", user.Name).First(&user1).Error; err != nil {
t.Fatalf("Failed to load with joins on, got error: %v", err)
}
AssertEqual(t, user1.NamedPet.Name, "joins-on_pet_1")
onQuery2 := DB.Where(&Pet{Name: "joins-on_pet_2"})
var user2 User
if err := DB.Joins("NamedPet", onQuery2).Where("users.name = ?", user.Name).First(&user2).Error; err != nil {
t.Fatalf("Failed to load with joins on, got error: %v", err)
}
AssertEqual(t, user2.NamedPet.Name, "joins-on_pet_2")
}
func TestJoinsWithSelect(t *testing.T) {
type result struct {
ID uint
PetID uint
Name string
}
user := *GetUser("joins_with_select", Config{Pets: 2})
DB.Save(&user)
var results []result
DB.Table("users").Select("users.id, pets.id as pet_id, pets.name").Joins("left join pets on pets.user_id = users.id").Where("users.name = ?", "joins_with_select").Scan(&results)
sort.Slice(results, func(i, j int) bool {
return results[i].PetID > results[j].PetID
})
sort.Slice(results, func(i, j int) bool {
return user.Pets[i].ID > user.Pets[j].ID
})
if len(results) != 2 || results[0].Name != user.Pets[0].Name || results[1].Name != user.Pets[1].Name {
t.Errorf("Should find all two pets with Join select, got %+v", results)
}
}
func TestJoinWithOmit(t *testing.T) {
user := *GetUser("joins_with_omit", Config{Pets: 2})
DB.Save(&user)
results := make([]*User, 0)
if err := DB.Table("users").Omit("name").Where("users.name = ?", "joins_with_omit").Joins("left join pets on pets.user_id = users.id").Find(&results).Error; err != nil {
return
}
if len(results) != 2 || results[0].Name != "" || results[1].Name != "" {
t.Errorf("Should find all two pets with Join omit and should not find user's name, got %+v", results)
return
}
}
func TestJoinCount(t *testing.T) {
companyA := Company{Name: "A"}
companyB := Company{Name: "B"}
DB.Create(&companyA)
DB.Create(&companyB)
user := User{Name: "kingGo", CompanyID: &companyB.ID}
DB.Create(&user)
query := DB.Model(&User{}).Joins("Company")
// Bug happens when .Count is called on a query.
// Removing the below two lines or downgrading to gorm v1.20.12 will make this test pass.
var total int64
query.Count(&total)
var result User
// Incorrectly generates a 'SELECT *' query which causes companies.id to overwrite users.id
if err := query.First(&result, user.ID).Error; err != nil {
t.Fatalf("Failed, got error: %v", err)
}
if result.ID != user.ID {
t.Fatalf("result's id, %d, doesn't match user's id, %d", result.ID, user.ID)
}
}
func TestJoinWithSoftDeleted(t *testing.T) {
user := GetUser("TestJoinWithSoftDeletedUser", Config{Account: true, NamedPet: true})
DB.Create(&user)
var user1 User
DB.Model(&User{}).Joins("NamedPet").Joins("Account").First(&user1, user.ID)
if user1.NamedPet == nil || user1.Account.ID == 0 {
t.Fatalf("joins NamedPet and Account should not empty:%v", user1)
}
// Account should empty
DB.Delete(&user1.Account)
var user2 User
DB.Model(&User{}).Joins("NamedPet").Joins("Account").First(&user2, user.ID)
if user2.NamedPet == nil || user2.Account.ID != 0 {
t.Fatalf("joins Account should not empty:%v", user2)
}
// NamedPet should empty
DB.Delete(&user1.NamedPet)
var user3 User
DB.Model(&User{}).Joins("NamedPet").Joins("Account").First(&user3, user.ID)
if user3.NamedPet != nil || user2.Account.ID != 0 {
t.Fatalf("joins NamedPet and Account should not empty:%v", user2)
}
}
func TestInnerJoins(t *testing.T) {
user := *GetUser("inner-joins-1", Config{Company: true, Manager: true, Account: true, NamedPet: false})
DB.Create(&user)
var user2 User
var err error
err = DB.InnerJoins("Company").InnerJoins("Manager").InnerJoins("Account").First(&user2, "users.name = ?", user.Name).Error
AssertEqual(t, err, nil)
CheckUser(t, user2, user)
// inner join and NamedPet is nil
err = DB.InnerJoins("NamedPet").InnerJoins("Company").InnerJoins("Manager").InnerJoins("Account").First(&user2, "users.name = ?", user.Name).Error
AssertEqual(t, err, gorm.ErrRecordNotFound)
// mixed inner join and left join
var user3 User
err = DB.Joins("NamedPet").InnerJoins("Company").InnerJoins("Manager").InnerJoins("Account").First(&user3, "users.name = ?", user.Name).Error
AssertEqual(t, err, nil)
CheckUser(t, user3, user)
}