mirror of https://github.com/go-gorm/gorm.git
73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
package gorm_test
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import (
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"fmt"
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"testing"
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"time"
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"github.com/jinzhu/gorm"
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)
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type Person struct {
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Id int
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Name string
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Addresses []*Address `gorm:"many2many:person_addresses;"`
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}
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type PersonAddress struct {
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gorm.JoinTableHandler
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PersonID int
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AddressID int
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DeletedAt time.Time
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CreatedAt time.Time
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}
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func (*PersonAddress) Add(handler gorm.JoinTableHandlerInterface, db *gorm.DB, foreignValue interface{}, associationValue interface{}) error {
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return db.Where(map[string]interface{}{
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"person_id": db.NewScope(foreignValue).PrimaryKeyValue(),
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"address_id": db.NewScope(associationValue).PrimaryKeyValue(),
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}).Assign(map[string]interface{}{
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"person_id": foreignValue,
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"address_id": associationValue,
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"deleted_at": gorm.Expr("NULL"),
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}).FirstOrCreate(&PersonAddress{}).Error
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}
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func (*PersonAddress) Delete(handler gorm.JoinTableHandlerInterface, db *gorm.DB, sources ...interface{}) error {
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return db.Delete(&PersonAddress{}).Error
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}
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func (pa *PersonAddress) JoinWith(handler gorm.JoinTableHandlerInterface, db *gorm.DB, source interface{}) *gorm.DB {
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table := pa.Table(db)
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return db.Table(table).Joins("INNER JOIN person_addresses ON person_addresses.address_id = addresses.id").Where(fmt.Sprintf("%v.deleted_at IS NULL OR %v.deleted_at <= '0001-01-02'", table, table))
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}
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func TestJoinTable(t *testing.T) {
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DB.Exec("drop table person_addresses;")
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DB.AutoMigrate(&Person{})
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DB.SetJoinTableHandler(&Person{}, "Addresses", &PersonAddress{})
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address1 := &Address{Address1: "address 1"}
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address2 := &Address{Address1: "address 2"}
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person := &Person{Name: "person", Addresses: []*Address{address1, address2}}
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DB.Save(person)
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DB.Model(person).Association("Addresses").Delete(address1)
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if DB.Find(&[]PersonAddress{}, "person_id = ?", person.Id).RowsAffected != 1 {
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t.Errorf("Should found one address")
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}
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if DB.Model(person).Association("Addresses").Count() != 1 {
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t.Errorf("Should found one address")
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}
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if DB.Unscoped().Find(&[]PersonAddress{}, "person_id = ?", person.Id).RowsAffected != 2 {
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t.Errorf("Found two addresses with Unscoped")
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}
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if DB.Model(person).Association("Addresses").Clear(); DB.Model(person).Association("Addresses").Count() != 0 {
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t.Errorf("Should deleted all addresses")
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}
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}
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