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Allow customize auto increment increment

This commit is contained in:
Jinzhu 2020-12-30 11:16:40 +08:00
parent 6c0ee2700a
commit 79864af9ff
2 changed files with 51 additions and 45 deletions
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4
callbacks/create.go
View File

@ -71,7 +71,7 @@ func Create(config *Config) func(db *gorm.DB) {
_, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv)
if isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID--
insertID -= db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
} else {
@ -83,7 +83,7 @@ func Create(config *Config) func(db *gorm.DB) {
if _, isZero := db.Statement.Schema.PrioritizedPrimaryField.ValueOf(rv); isZero {
db.Statement.Schema.PrioritizedPrimaryField.Set(rv, insertID)
insertID++
insertID += db.Statement.Schema.PrioritizedPrimaryField.AutoIncrementIncrement
}
}
}

92
schema/field.go
View File

@ -37,55 +37,57 @@ const (
)
type Field struct {
Name string
DBName string
BindNames []string
DataType DataType
GORMDataType DataType
PrimaryKey bool
AutoIncrement bool
Creatable bool
Updatable bool
Readable bool
HasDefaultValue bool
AutoCreateTime TimeType
AutoUpdateTime TimeType
DefaultValue string
DefaultValueInterface interface{}
NotNull bool
Unique bool
Comment string
Size int
Precision int
Scale int
FieldType reflect.Type
IndirectFieldType reflect.Type
StructField reflect.StructField
Tag reflect.StructTag
TagSettings map[string]string
Schema *Schema
EmbeddedSchema *Schema
OwnerSchema *Schema
ReflectValueOf func(reflect.Value) reflect.Value
ValueOf func(reflect.Value) (value interface{}, zero bool)
Set func(reflect.Value, interface{}) error
Name string
DBName string
BindNames []string
DataType DataType
GORMDataType DataType
PrimaryKey bool
AutoIncrement bool
AutoIncrementIncrement int64
Creatable bool
Updatable bool
Readable bool
HasDefaultValue bool
AutoCreateTime TimeType
AutoUpdateTime TimeType
DefaultValue string
DefaultValueInterface interface{}
NotNull bool
Unique bool
Comment string
Size int
Precision int
Scale int
FieldType reflect.Type
IndirectFieldType reflect.Type
StructField reflect.StructField
Tag reflect.StructTag
TagSettings map[string]string
Schema *Schema
EmbeddedSchema *Schema
OwnerSchema *Schema
ReflectValueOf func(reflect.Value) reflect.Value
ValueOf func(reflect.Value) (value interface{}, zero bool)
Set func(reflect.Value, interface{}) error
}
func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
var err error
field := &Field{
Name: fieldStruct.Name,
BindNames: []string{fieldStruct.Name},
FieldType: fieldStruct.Type,
IndirectFieldType: fieldStruct.Type,
StructField: fieldStruct,
Creatable: true,
Updatable: true,
Readable: true,
Tag: fieldStruct.Tag,
TagSettings: ParseTagSetting(fieldStruct.Tag.Get("gorm"), ";"),
Schema: schema,
Name: fieldStruct.Name,
BindNames: []string{fieldStruct.Name},
FieldType: fieldStruct.Type,
IndirectFieldType: fieldStruct.Type,
StructField: fieldStruct,
Creatable: true,
Updatable: true,
Readable: true,
Tag: fieldStruct.Tag,
TagSettings: ParseTagSetting(fieldStruct.Tag.Get("gorm"), ";"),
Schema: schema,
AutoIncrementIncrement: 1,
}
for field.IndirectFieldType.Kind() == reflect.Ptr {
@ -149,6 +151,10 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
field.HasDefaultValue = true
}
if num, ok := field.TagSettings["AUTOINCREMENTINCREMENT"]; ok {
field.AutoIncrementIncrement, _ = strconv.ParseInt(num, 10, 64)
}
if v, ok := field.TagSettings["DEFAULT"]; ok {
field.HasDefaultValue = true
field.DefaultValue = v