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Test HasOne Association

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This commit is contained in:
Jinzhu 2020-05-24 22:52:16 +08:00
parent 677c745b62
commit 68a7a8207a
6 changed files with 133 additions and 30 deletions
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24
association.go
View File

@ -97,28 +97,34 @@ func (association *Association) Replace(values ...interface{}) error {
}
case schema.HasOne, schema.HasMany:
var (
tx = association.DB
primaryFields []*schema.Field
foreignKeys []string
updateMap = map[string]interface{}{}
relPrimaryKeys = []string{}
relValues = schema.GetRelationsValues(reflectValue, []*schema.Relationship{rel})
modelValue = reflect.New(rel.FieldSchema.ModelType).Interface()
)
if rel.Type == schema.BelongsTo {
modelValue = reflect.New(rel.Schema.ModelType).Interface()
for _, field := range rel.FieldSchema.PrimaryFields {
relPrimaryKeys = append(relPrimaryKeys, field.DBName)
}
if _, qvs := schema.GetIdentityFieldValuesMap(relValues, rel.FieldSchema.PrimaryFields); len(qvs) > 0 {
if column, values := schema.ToQueryValues(relPrimaryKeys, qvs); len(values) > 0 {
tx = tx.Not(clause.IN{Column: column, Values: values})
}
}
for _, ref := range rel.References {
if ref.OwnPrimaryKey {
primaryFields = append(primaryFields, ref.PrimaryKey)
} else {
foreignKeys = append(foreignKeys, ref.ForeignKey.DBName)
updateMap[ref.ForeignKey.DBName] = nil
}
}
_, values := schema.GetIdentityFieldValuesMap(reflectValue, primaryFields)
if len(values) == 0 {
column, queryValues := schema.ToQueryValues(foreignKeys, values)
association.DB.Model(modelValue).Where(clause.IN{Column: column, Values: queryValues}).UpdateColumns(updateMap)
if _, qvs := schema.GetIdentityFieldValuesMap(reflectValue, primaryFields); len(qvs) > 0 {
column, values := schema.ToQueryValues(foreignKeys, qvs)
tx.Model(modelValue).Where(clause.IN{Column: column, Values: values}).UpdateColumns(updateMap)
}
case schema.Many2Many:
var primaryFields, relPrimaryFields []*schema.Field
@ -413,7 +419,7 @@ func (association *Association) saveAssociation(clear bool, values ...interface{
}
if len(values) > 0 {
association.DB.Select(selectedColumns).Model(nil).Save(reflectValue.Addr().Interface())
association.DB.Session(&Session{}).Select(selectedColumns).Model(nil).Save(reflectValue.Addr().Interface())
}
}

6
callbacks/associations.go
View File

@ -124,6 +124,8 @@ func SaveAfterAssociations(db *gorm.DB) {
if _, isZero := rel.FieldSchema.PrioritizedPrimaryField.ValueOf(rv); isZero {
elems = reflect.Append(elems, rv)
} else {
db.Session(&gorm.Session{}).Save(rv.Interface())
}
}
}
@ -149,6 +151,8 @@ func SaveAfterAssociations(db *gorm.DB) {
if _, isZero := rel.FieldSchema.PrioritizedPrimaryField.ValueOf(f); isZero {
db.Session(&gorm.Session{}).Create(f.Interface())
} else {
db.Session(&gorm.Session{}).Save(f.Interface())
}
}
}
@ -187,6 +191,8 @@ func SaveAfterAssociations(db *gorm.DB) {
} else {
elems = reflect.Append(elems, elem.Addr())
}
} else {
db.Session(&gorm.Session{}).Save(elem.Interface())
}
}
}

7
callbacks/update.go
View File

@ -45,7 +45,11 @@ func BeforeUpdate(db *gorm.DB) {
func Update(db *gorm.DB) {
db.Statement.AddClauseIfNotExists(clause.Update{})
db.Statement.AddClause(ConvertToAssignments(db.Statement))
if set := ConvertToAssignments(db.Statement); len(set) != 0 {
db.Statement.AddClause(set)
} else {
return
}
db.Statement.Build("UPDATE", "SET", "WHERE")
result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
@ -198,5 +202,6 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
}
}
}
return
}

2
clause/expression.go
View File

@ -55,9 +55,11 @@ func (in IN) NegationBuild(builder Builder) {
switch len(in.Values) {
case 0:
case 1:
builder.WriteQuoted(in.Column)
builder.WriteString(" <> ")
builder.AddVar(builder, in.Values...)
default:
builder.WriteQuoted(in.Column)
builder.WriteString(" NOT IN (")
builder.AddVar(builder, in.Values...)
builder.WriteByte(')')

8
schema/field.go
View File

@ -603,6 +603,9 @@ func (field *Field) setupValuerAndSetter() {
if _, ok := fieldValue.Interface().(sql.Scanner); ok {
// struct scanner
field.Set = func(value reflect.Value, v interface{}) (err error) {
if v == nil {
field.ReflectValueOf(value).Set(reflect.New(field.FieldType).Elem())
} else {
reflectV := reflect.ValueOf(v)
if reflectV.Type().ConvertibleTo(field.FieldType) {
field.ReflectValueOf(value).Set(reflectV.Convert(field.FieldType))
@ -613,11 +616,15 @@ func (field *Field) setupValuerAndSetter() {
} else {
err = field.ReflectValueOf(value).Addr().Interface().(sql.Scanner).Scan(v)
}
}
return
}
} else if _, ok := fieldValue.Elem().Interface().(sql.Scanner); ok {
// pointer scanner
field.Set = func(value reflect.Value, v interface{}) (err error) {
if v == nil {
field.ReflectValueOf(value).Set(reflect.New(field.FieldType).Elem())
} else {
reflectV := reflect.ValueOf(v)
if reflectV.Type().ConvertibleTo(field.FieldType) {
field.ReflectValueOf(value).Set(reflectV.Convert(field.FieldType))
@ -630,6 +637,7 @@ func (field *Field) setupValuerAndSetter() {
} else {
err = field.ReflectValueOf(value).Interface().(sql.Scanner).Scan(v)
}
}
return
}
} else {

76
tests/associations_test.go
View File

@ -233,3 +233,79 @@ func TestBelongsToAssociationForSlice(t *testing.T) {
AssertAssociationCount(t, users[0], "Company", 0, "After Delete")
AssertAssociationCount(t, users[1], "Company", 1, "After other user Delete")
}
func TestHasOneAssociation(t *testing.T) {
var user = *GetUser("hasone", Config{Account: true})
if err := DB.Create(&user).Error; err != nil {
t.Fatalf("errors happened when create: %v", err)
}
CheckUser(t, user, user)
// Find
var user2 User
DB.Find(&user2, "id = ?", user.ID)
DB.Model(&user2).Association("Account").Find(&user2.Account)
CheckUser(t, user2, user)
// Count
AssertAssociationCount(t, user, "Account", 1, "")
// Append
var account = Account{Number: "account-has-one-append"}
if err := DB.Model(&user2).Association("Account").Append(&account); err != nil {
t.Fatalf("Error happened when append account, got %v", err)
}
if account.ID == 0 {
t.Fatalf("Account's ID should be created")
}
user.Account = account
CheckUser(t, user2, user)
AssertAssociationCount(t, user, "Account", 1, "AfterAppend")
// Replace
var account2 = Account{Number: "account-has-one-replace"}
if err := DB.Model(&user2).Association("Account").Replace(&account2); err != nil {
t.Fatalf("Error happened when append Account, got %v", err)
}
if account2.ID == 0 {
t.Fatalf("account2's ID should be created")
}
user.Account = account2
CheckUser(t, user2, user)
AssertAssociationCount(t, user2, "Account", 1, "AfterReplace")
// Delete
if err := DB.Model(&user2).Association("Account").Delete(&Company{}); err != nil {
t.Fatalf("Error happened when delete account, got %v", err)
}
AssertAssociationCount(t, user2, "Account", 1, "after delete non-existing data")
if err := DB.Model(&user2).Association("Account").Delete(&account2); err != nil {
t.Fatalf("Error happened when delete Account, got %v", err)
}
AssertAssociationCount(t, user2, "Account", 0, "after delete")
// Prepare Data for Clear
if err := DB.Model(&user2).Association("Account").Append(&account); err != nil {
t.Fatalf("Error happened when append Account, got %v", err)
}
AssertAssociationCount(t, user2, "Account", 1, "after prepare data")
// Clear
if err := DB.Model(&user2).Association("Account").Clear(); err != nil {
t.Errorf("Error happened when clear Account, got %v", err)
}
AssertAssociationCount(t, user2, "Account", 0, "after clear")
}