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|
package gorm_test
import (
"os"
"reflect"
"sort"
"testing"
)
type Blog struct {
ID uint `gorm:"primary_key"`
Locale string `gorm:"primary_key"`
Subject string
Body string
Tags []Tag `gorm:"many2many:blog_tags;"`
SharedTags []Tag `gorm:"many2many:shared_blog_tags;ForeignKey:id;AssociationForeignKey:id"`
LocaleTags []Tag `gorm:"many2many:locale_blog_tags;ForeignKey:id,locale;AssociationForeignKey:id"`
}
type Tag struct {
ID uint `gorm:"primary_key"`
Locale string `gorm:"primary_key"`
Value string
Blogs []*Blog `gorm:"many2many:blogs_tags"`
}
func compareTags(tags []Tag, contents []string) bool {
var tagContents []string
for _, tag := range tags {
tagContents = append(tagContents, tag.Value)
}
sort.Strings(tagContents)
sort.Strings(contents)
return reflect.DeepEqual(tagContents, contents)
}
func TestManyToManyWithMultiPrimaryKeys(t *testing.T) {
if dialect := os.Getenv("GORM_DIALECT"); dialect != "" && dialect != "sqlite" && dialect != "mssql" {
DB.DropTable(&Blog{}, &Tag{})
DB.DropTable("blog_tags")
DB.CreateTable(&Blog{}, &Tag{})
blog := Blog{
Locale: "ZH",
Subject: "subject",
Body: "body",
Tags: []Tag{
{Locale: "ZH", Value: "tag1"},
{Locale: "ZH", Value: "tag2"},
},
}
DB.Save(&blog)
if !compareTags(blog.Tags, []string{"tag1", "tag2"}) {
t.Errorf("Blog should has two tags")
}
// Append
var tag3 = &Tag{Locale: "ZH", Value: "tag3"}
DB.Model(&blog).Association("Tags").Append([]*Tag{tag3})
if !compareTags(blog.Tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Blog should has three tags after Append")
}
if DB.Model(&blog).Association("Tags").Count() != 3 {
t.Errorf("Blog should has three tags after Append")
}
var tags []Tag
DB.Model(&blog).Related(&tags, "Tags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Should find 3 tags with Related")
}
var blog1 Blog
DB.Preload("Tags").Find(&blog1)
if !compareTags(blog1.Tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Preload many2many relations")
}
// Replace
var tag5 = &Tag{Locale: "ZH", Value: "tag5"}
var tag6 = &Tag{Locale: "ZH", Value: "tag6"}
DB.Model(&blog).Association("Tags").Replace(tag5, tag6)
var tags2 []Tag
DB.Model(&blog).Related(&tags2, "Tags")
if !compareTags(tags2, []string{"tag5", "tag6"}) {
t.Errorf("Should find 2 tags after Replace")
}
if DB.Model(&blog).Association("Tags").Count() != 2 {
t.Errorf("Blog should has three tags after Replace")
}
// Delete
DB.Model(&blog).Association("Tags").Delete(tag5)
var tags3 []Tag
DB.Model(&blog).Related(&tags3, "Tags")
if !compareTags(tags3, []string{"tag6"}) {
t.Errorf("Should find 1 tags after Delete")
}
if DB.Model(&blog).Association("Tags").Count() != 1 {
t.Errorf("Blog should has three tags after Delete")
}
DB.Model(&blog).Association("Tags").Delete(tag3)
var tags4 []Tag
DB.Model(&blog).Related(&tags4, "Tags")
if !compareTags(tags4, []string{"tag6"}) {
t.Errorf("Tag should not be deleted when Delete with a unrelated tag")
}
// Clear
DB.Model(&blog).Association("Tags").Clear()
if DB.Model(&blog).Association("Tags").Count() != 0 {
t.Errorf("All tags should be cleared")
}
}
}
func TestManyToManyWithCustomizedForeignKeys(t *testing.T) {
if dialect := os.Getenv("GORM_DIALECT"); dialect != "" && dialect != "sqlite" && dialect != "mssql" {
DB.DropTable(&Blog{}, &Tag{})
DB.DropTable("shared_blog_tags")
DB.CreateTable(&Blog{}, &Tag{})
blog := Blog{
Locale: "ZH",
Subject: "subject",
Body: "body",
SharedTags: []Tag{
{Locale: "ZH", Value: "tag1"},
{Locale: "ZH", Value: "tag2"},
},
}
DB.Save(&blog)
blog2 := Blog{
ID: blog.ID,
Locale: "EN",
}
DB.Create(&blog2)
if !compareTags(blog.SharedTags, []string{"tag1", "tag2"}) {
t.Errorf("Blog should has two tags")
}
// Append
var tag3 = &Tag{Locale: "ZH", Value: "tag3"}
DB.Model(&blog).Association("SharedTags").Append([]*Tag{tag3})
if !compareTags(blog.SharedTags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Blog should has three tags after Append")
}
if DB.Model(&blog).Association("SharedTags").Count() != 3 {
t.Errorf("Blog should has three tags after Append")
}
if DB.Model(&blog2).Association("SharedTags").Count() != 3 {
t.Errorf("Blog should has three tags after Append")
}
var tags []Tag
DB.Model(&blog).Related(&tags, "SharedTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Should find 3 tags with Related")
}
DB.Model(&blog2).Related(&tags, "SharedTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Should find 3 tags with Related")
}
var blog1 Blog
DB.Preload("SharedTags").Find(&blog1)
if !compareTags(blog1.SharedTags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Preload many2many relations")
}
var tag4 = &Tag{Locale: "ZH", Value: "tag4"}
DB.Model(&blog2).Association("SharedTags").Append(tag4)
DB.Model(&blog).Related(&tags, "SharedTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3", "tag4"}) {
t.Errorf("Should find 3 tags with Related")
}
DB.Model(&blog2).Related(&tags, "SharedTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3", "tag4"}) {
t.Errorf("Should find 3 tags with Related")
}
// Replace
var tag5 = &Tag{Locale: "ZH", Value: "tag5"}
var tag6 = &Tag{Locale: "ZH", Value: "tag6"}
DB.Model(&blog2).Association("SharedTags").Replace(tag5, tag6)
var tags2 []Tag
DB.Model(&blog).Related(&tags2, "SharedTags")
if !compareTags(tags2, []string{"tag5", "tag6"}) {
t.Errorf("Should find 2 tags after Replace")
}
DB.Model(&blog2).Related(&tags2, "SharedTags")
if !compareTags(tags2, []string{"tag5", "tag6"}) {
t.Errorf("Should find 2 tags after Replace")
}
if DB.Model(&blog).Association("SharedTags").Count() != 2 {
t.Errorf("Blog should has three tags after Replace")
}
// Delete
DB.Model(&blog).Association("SharedTags").Delete(tag5)
var tags3 []Tag
DB.Model(&blog).Related(&tags3, "SharedTags")
if !compareTags(tags3, []string{"tag6"}) {
t.Errorf("Should find 1 tags after Delete")
}
if DB.Model(&blog).Association("SharedTags").Count() != 1 {
t.Errorf("Blog should has three tags after Delete")
}
DB.Model(&blog2).Association("SharedTags").Delete(tag3)
var tags4 []Tag
DB.Model(&blog).Related(&tags4, "SharedTags")
if !compareTags(tags4, []string{"tag6"}) {
t.Errorf("Tag should not be deleted when Delete with a unrelated tag")
}
// Clear
DB.Model(&blog2).Association("SharedTags").Clear()
if DB.Model(&blog).Association("SharedTags").Count() != 0 {
t.Errorf("All tags should be cleared")
}
}
}
func TestManyToManyWithCustomizedForeignKeys2(t *testing.T) {
if dialect := os.Getenv("GORM_DIALECT"); dialect != "" && dialect != "sqlite" && dialect != "mssql" {
DB.DropTable(&Blog{}, &Tag{})
DB.DropTable("locale_blog_tags")
DB.CreateTable(&Blog{}, &Tag{})
blog := Blog{
Locale: "ZH",
Subject: "subject",
Body: "body",
LocaleTags: []Tag{
{Locale: "ZH", Value: "tag1"},
{Locale: "ZH", Value: "tag2"},
},
}
DB.Save(&blog)
blog2 := Blog{
ID: blog.ID,
Locale: "EN",
}
DB.Create(&blog2)
// Append
var tag3 = &Tag{Locale: "ZH", Value: "tag3"}
DB.Model(&blog).Association("LocaleTags").Append([]*Tag{tag3})
if !compareTags(blog.LocaleTags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Blog should has three tags after Append")
}
if DB.Model(&blog).Association("LocaleTags").Count() != 3 {
t.Errorf("Blog should has three tags after Append")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 0 {
t.Errorf("EN Blog should has 0 tags after ZH Blog Append")
}
var tags []Tag
DB.Model(&blog).Related(&tags, "LocaleTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Should find 3 tags with Related")
}
DB.Model(&blog2).Related(&tags, "LocaleTags")
if len(tags) != 0 {
t.Errorf("Should find 0 tags with Related for EN Blog")
}
var blog1 Blog
DB.Preload("LocaleTags").Find(&blog1, "locale = ? AND id = ?", "ZH", blog.ID)
if !compareTags(blog1.LocaleTags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Preload many2many relations")
}
var tag4 = &Tag{Locale: "ZH", Value: "tag4"}
DB.Model(&blog2).Association("LocaleTags").Append(tag4)
DB.Model(&blog).Related(&tags, "LocaleTags")
if !compareTags(tags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("Should find 3 tags with Related for EN Blog")
}
DB.Model(&blog2).Related(&tags, "LocaleTags")
if !compareTags(tags, []string{"tag4"}) {
t.Errorf("Should find 1 tags with Related for EN Blog")
}
// Replace
var tag5 = &Tag{Locale: "ZH", Value: "tag5"}
var tag6 = &Tag{Locale: "ZH", Value: "tag6"}
DB.Model(&blog2).Association("LocaleTags").Replace(tag5, tag6)
var tags2 []Tag
DB.Model(&blog).Related(&tags2, "LocaleTags")
if !compareTags(tags2, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("CN Blog's tags should not be changed after EN Blog Replace")
}
var blog11 Blog
DB.Preload("LocaleTags").First(&blog11, "id = ? AND locale = ?", blog.ID, blog.Locale)
if !compareTags(blog11.LocaleTags, []string{"tag1", "tag2", "tag3"}) {
t.Errorf("CN Blog's tags should not be changed after EN Blog Replace")
}
DB.Model(&blog2).Related(&tags2, "LocaleTags")
if !compareTags(tags2, []string{"tag5", "tag6"}) {
t.Errorf("Should find 2 tags after Replace")
}
var blog21 Blog
DB.Preload("LocaleTags").First(&blog21, "id = ? AND locale = ?", blog2.ID, blog2.Locale)
if !compareTags(blog21.LocaleTags, []string{"tag5", "tag6"}) {
t.Errorf("EN Blog's tags should be changed after Replace")
}
if DB.Model(&blog).Association("LocaleTags").Count() != 3 {
t.Errorf("ZH Blog should has three tags after Replace")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 2 {
t.Errorf("EN Blog should has two tags after Replace")
}
// Delete
DB.Model(&blog).Association("LocaleTags").Delete(tag5)
if DB.Model(&blog).Association("LocaleTags").Count() != 3 {
t.Errorf("ZH Blog should has three tags after Delete with EN's tag")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 2 {
t.Errorf("EN Blog should has two tags after ZH Blog Delete with EN's tag")
}
DB.Model(&blog2).Association("LocaleTags").Delete(tag5)
if DB.Model(&blog).Association("LocaleTags").Count() != 3 {
t.Errorf("ZH Blog should has three tags after EN Blog Delete with EN's tag")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 1 {
t.Errorf("EN Blog should has 1 tags after EN Blog Delete with EN's tag")
}
// Clear
DB.Model(&blog2).Association("LocaleTags").Clear()
if DB.Model(&blog).Association("LocaleTags").Count() != 3 {
t.Errorf("ZH Blog's tags should not be cleared when clear EN Blog's tags")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 0 {
t.Errorf("EN Blog's tags should be cleared when clear EN Blog's tags")
}
DB.Model(&blog).Association("LocaleTags").Clear()
if DB.Model(&blog).Association("LocaleTags").Count() != 0 {
t.Errorf("ZH Blog's tags should be cleared when clear ZH Blog's tags")
}
if DB.Model(&blog2).Association("LocaleTags").Count() != 0 {
t.Errorf("EN Blog's tags should be cleared")
}
}
}
|
