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dqlite.go
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/
dqlite.go
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// Copyright 2021 IBM Corp.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package dqlite
import (
"database/sql"
_ "github.com/mattn/go-sqlite3"
"gorm.io/driver/sqlite"
"gorm.io/gorm"
"gorm.io/gorm/callbacks"
"gorm.io/gorm/clause"
"gorm.io/gorm/schema"
)
// DriverName is the default driver name for DQLite.
const DriverName = "dqlite"
type Dialector struct {
db *sql.DB
dialector *sqlite.Dialector
}
func Open(db *sql.DB) gorm.Dialector {
return &Dialector{db: db, dialector: &sqlite.Dialector{}}
}
func (wrapper Dialector) Name() string {
return DriverName
}
func (wrapper Dialector) Initialize(db *gorm.DB) (err error) {
if wrapper.dialector.DriverName == "" {
wrapper.dialector.DriverName = DriverName
}
// register callbacks
callbacks.RegisterDefaultCallbacks(db, &callbacks.Config{
LastInsertIDReversed: true,
})
if wrapper.dialector.Conn != nil {
db.ConnPool = wrapper.dialector.Conn
} else {
db.ConnPool = wrapper.db
}
for k, v := range wrapper.dialector.ClauseBuilders() {
db.ClauseBuilders[k] = v
}
return
}
func (wrapper Dialector) ClauseBuilders() map[string]clause.ClauseBuilder {
return wrapper.dialector.ClauseBuilders()
}
func (wrapper Dialector) DefaultValueOf(field *schema.Field) clause.Expression {
return wrapper.dialector.DefaultValueOf(field)
}
func (wrapper Dialector) Migrator(db *gorm.DB) gorm.Migrator {
return wrapper.dialector.Migrator(db)
}
func (wrapper Dialector) BindVarTo(writer clause.Writer, stmt *gorm.Statement, v interface{}) {
wrapper.dialector.BindVarTo(writer, stmt, v)
}
func (wrapper Dialector) QuoteTo(writer clause.Writer, str string) {
wrapper.dialector.QuoteTo(writer, str)
}
func (wrapper Dialector) Explain(sql string, vars ...interface{}) string {
return wrapper.dialector.Explain(sql, vars...)
}
func (wrapper Dialector) DataTypeOf(field *schema.Field) string {
return wrapper.dialector.DataTypeOf(field)
}
func (wrapper Dialector) SavePoint(tx *gorm.DB, name string) error {
return wrapper.dialector.SavePoint(tx, name)
}
func (wrapper Dialector) RollbackTo(tx *gorm.DB, name string) error {
return wrapper.dialector.RollbackTo(tx, name)
}